1.
Mer Bleue Conservation Area
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The Mer Bleue Conservation Area is a 33.43 km2 protected area east of Ottawa in Eastern Ontario, Canada. Its main feature is a bog that is situated in an ancient channel of the Ottawa River and is a remarkable boreal-like ecosystem normally not found this far south. Stunted black spruce, tamarack, bog rosemary, blueberry, the area provides habitat for a large number of species, including beaver, muskrat, waterfowl, and the rare spotted turtle. A1.2 km boardwalk allows visitors to explore a section of the bog, there are hiking trails that follow raised areas along the edges of the bog and cross-country skiing trails for use in winter. The conservation area is managed by the National Capital Commission, the value of this unique wetland was not always recognized. During World War II, the Royal Canadian Air Force used this area for bombing practice, now, this area has been designated as a Wetland of International Significance under the Ramsar Convention since October 1995. The name Mer Bleue is thought to describe the appearance when it is covered in morning fog. Europeans began farming in the surrounding the bog in the 1830s. In the mid-1950s, the government of Canada expropriated the farmland. Today, the bog is reserved mainly for recreational and scientific purposes, Mer Bleue is located in the western end of the southern melt water channel of the post-glacial Ottawa River. This channel was eroded into the floor of the Champlain Sea, bedrock topography consists of two north north-east/south south-west trending ridges. Surficial material consists of glacial till, thick marine clay. Peat deposits in the bog proper are up to 6 metres thick, there are two sand ridges that extend from the west towards the center of the conservation area. These two parallel ridges divide the bog in three sections, the hydrological features at this site are most unusual. Being a domed bog, water enters the bog mainly from natural precipitation creating oligotrophic conditions, the periphery of the bog is encircled by a mineral-enriched lagg that maintains a base water level for the bog. Drainage is poor due to underlying clay deposits as well as numerous beaver dams, water eventually drains slowly both westward into Greens Creek and eastward into Bear Brook. However, water levels remain at or near the surface of the bog for most of the year, saline ground-water sources are found under the organic overburden. Mer Bleue is a boreal peatland, a type of ecosystem that is found in the boreal forest to the north
2.
Ontario
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Ontario, one of the 13 provinces and territories of Canada, is located in east-central Canada. It is Canadas most populous province by a margin, accounting for nearly 40 percent of all Canadians. Ontario is fourth-largest in total area when the territories of the Northwest Territories and it is home to the nations capital city, Ottawa, and the nations most populous city, Toronto. There is only about 1 km of land made up of portages including Height of Land Portage on the Minnesota border. Ontario is sometimes divided into two regions, Northern Ontario and Southern Ontario. The great majority of Ontarios population and arable land is located in the south, in contrast, the larger, northern part of Ontario is sparsely populated with cold winters and is heavily forested. The province is named after Lake Ontario, a thought to be derived from Ontarí, io, a Huron word meaning great lake, or possibly skanadario. Ontario has about 250,000 freshwater lakes, the province consists of three main geographical regions, The thinly populated Canadian Shield in the northwestern and central portions, which comprises over half the land area of Ontario. Although this area mostly does not support agriculture, it is rich in minerals and in part covered by the Central and Midwestern Canadian Shield forests, studded with lakes, Northern Ontario is subdivided into two sub-regions, Northwestern Ontario and Northeastern Ontario. The virtually unpopulated Hudson Bay Lowlands in the north and northeast, mainly swampy. Southern Ontario which is further sub-divided into four regions, Central Ontario, Eastern Ontario, Golden Horseshoe, the highest point is Ishpatina Ridge at 693 metres above sea level located in Temagami, Northeastern Ontario. In the south, elevations of over 500 m are surpassed near Collingwood, above the Blue Mountains in the Dundalk Highlands, the Carolinian forest zone covers most of the southwestern region of the province. A well-known geographic feature is Niagara Falls, part of the Niagara Escarpment, the Saint Lawrence Seaway allows navigation to and from the Atlantic Ocean as far inland as Thunder Bay in Northwestern Ontario. Northern Ontario occupies roughly 87 percent of the area of the province. Point Pelee is a peninsula of Lake Erie in southwestern Ontario that is the southernmost extent of Canadas mainland, Pelee Island and Middle Island in Lake Erie extend slightly farther. All are south of 42°N – slightly farther south than the border of California. The climate of Ontario varies by season and location, the effects of these major air masses on temperature and precipitation depend mainly on latitude, proximity to major bodies of water and to a small extent, terrain relief. In general, most of Ontarios climate is classified as humid continental, Ontario has three main climatic regions
3.
Canada
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Canada is a country in the northern half of North America. Canadas border with the United States is the worlds longest binational land border, the majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its territory being dominated by forest and tundra. It is highly urbanized with 82 per cent of the 35.15 million people concentrated in large and medium-sized cities, One third of the population lives in the three largest cities, Toronto, Montreal and Vancouver. Its capital is Ottawa, and other urban areas include Calgary, Edmonton, Quebec City, Winnipeg. Various aboriginal peoples had inhabited what is now Canada for thousands of years prior to European colonization. Pursuant to the British North America Act, on July 1,1867, the colonies of Canada, New Brunswick and this began an accretion of provinces and territories to the mostly self-governing Dominion to the present ten provinces and three territories forming modern Canada. With the Constitution Act 1982, Canada took over authority, removing the last remaining ties of legal dependence on the Parliament of the United Kingdom. Canada is a parliamentary democracy and a constitutional monarchy, with Queen Elizabeth II being the head of state. The country is officially bilingual at the federal level and it is one of the worlds most ethnically diverse and multicultural nations, the product of large-scale immigration from many other countries. Its advanced economy is the eleventh largest in the world, relying chiefly upon its abundant natural resources, Canadas long and complex relationship with the United States has had a significant impact on its economy and culture. Canada is a country and has the tenth highest nominal per capita income globally as well as the ninth highest ranking in the Human Development Index. It ranks among the highest in international measurements of government transparency, civil liberties, quality of life, economic freedom, Canada is an influential nation in the world, primarily due to its inclusive values, years of prosperity and stability, stable economy, and efficient military. While a variety of theories have been postulated for the origins of Canada. In 1535, indigenous inhabitants of the present-day Quebec City region used the word to direct French explorer Jacques Cartier to the village of Stadacona, from the 16th to the early 18th century Canada referred to the part of New France that lay along the St. Lawrence River. In 1791, the area became two British colonies called Upper Canada and Lower Canada collectively named The Canadas, until their union as the British Province of Canada in 1841. Upon Confederation in 1867, Canada was adopted as the name for the new country at the London Conference. The transition away from the use of Dominion was formally reflected in 1982 with the passage of the Canada Act, later that year, the name of national holiday was changed from Dominion Day to Canada Day
4.
Precipitation
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In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity. The main forms of precipitation include drizzle, rain, sleet, snow, graupel, Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor, so that the water condenses and precipitates. Thus, fog and mist are not precipitation but suspensions, because the vapor does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated, Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers, moisture that is lifted or otherwise forced to rise over a layer of sub-freezing air at the surface may be condensed into clouds and rain. This process is active when freezing rain is occurring. A stationary front is often present near the area of freezing rain, provided necessary and sufficient atmospheric moisture content, the moisture within the rising air will condense into clouds, namely stratus and cumulonimbus. Eventually, the droplets will grow large enough to form raindrops. Lake-effect snowfall can be locally heavy, thundersnow is possible within a cyclones comma head and within lake effect precipitation bands. In mountainous areas, heavy precipitation is possible where upslope flow is maximized within windward sides of the terrain at elevation, on the leeward side of mountains, desert climates can exist due to the dry air caused by compressional heating. The movement of the trough, or intertropical convergence zone. Precipitation is a component of the water cycle, and is responsible for depositing the fresh water on the planet. Approximately 505,000 cubic kilometres of water falls as precipitation each year,398,000 cubic kilometres of it over the oceans and 107,000 cubic kilometres over land. Given the Earths surface area, that means the globally averaged annual precipitation is 990 millimetres, Climate classification systems such as the Köppen climate classification system use average annual rainfall to help differentiate between differing climate regimes. Precipitation may occur on celestial bodies, e. g. when it gets cold, Mars has precipitation which most likely takes the form of frost. Precipitation is a component of the water cycle, and is responsible for depositing most of the fresh water on the planet. Approximately 505,000 km3 of water falls as precipitation each year,398,000 km3 of it over the oceans, given the Earths surface area, that means the globally averaged annual precipitation is 990 millimetres. Mechanisms of producing precipitation include convective, stratiform, and orographic rainfall, Precipitation can be divided into three categories, based on whether it falls as liquid water, liquid water that freezes on contact with the surface, or ice
5.
Estonia
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Estonia, officially the Republic of Estonia, is a country in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia, across the Baltic Sea lies Sweden in the west and Finland in the north. The territory of Estonia consists of a mainland and 2,222 islands and islets in the Baltic Sea, covering 45,339 km2 of land and water, and is influenced by a humid continental climate. The territory of Estonia has been inhabited since at least 6500 BC, in 1988, during the Singing Revolution, the Estonian Supreme Soviet issued the Estonian Sovereignty Declaration in defiance of Soviet rule, and independence was restored on 20 August 1991. Estonia is a parliamentary republic divided into fifteen counties. Its capital and largest city is Tallinn, with a population of 1.3 million, it is one of the least-populous member states of the European Union, Eurozone, North Atlantic Treaty Organization, OECD and Schengen Area. Estonia is a country with an advanced, high-income economy that is among the fastest growing in the EU. Its Human Development Index ranks very highly, and it performs favourably in measurements of economic freedom, civil liberties, the 2015 PISA test places Estonian high school students 3rd in the world, behind Singapore and Japan. Citizens of Estonia are provided with health care, free education. Since independence the country has developed its IT sector, becoming one of the worlds most digitally advanced societies. In 2005 Estonia became the first nation to hold elections over the Internet, in the Estonian language, the oldest known endonym of the Estonians was maarahvas, meaning country people or people of the land. The land inhabited by Estonians was called Maavald meaning Country Parish or Land Parish, one hypothesis regarding the modern name of Estonia is that it originated from the Aesti, a people described by the Roman historian Tacitus in his Germania. The historic Aesti were allegedly Baltic people, whereas the modern Estonians are Finno-Ugric, the geographical areas between Aesti and Estonia do not match, with Aesti being further down south. Ancient Scandinavian sagas refer to a land called Eistland, as the country is called in Icelandic. Early Latin and other ancient versions of the name are Estia and Hestia, esthonia was a common alternative English spelling prior to 1921. Human settlement in Estonia became possible 13,000 to 11,000 years ago, the oldest known settlement in Estonia is the Pulli settlement, which was on the banks of the river Pärnu, near the town of Sindi, in south-western Estonia. According to radiocarbon dating it was settled around 11,000 years ago, the earliest human inhabitation during the Mesolithic period is connected to Kunda culture, which is named after the town of Kunda in northern Estonia. At that time the country was covered with forests, and people lived in communities near bodies of water
6.
Scots pine
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In the north of its range, it occurs from sea level to 1,000 m, while in the south of its range it is a high altitude mountain tree, growing at 1, 200–2,600 m altitude. It is readily identified by its combination of short, blue-green leaves. The species is found on poorer, sandy soils, rocky outcrops. On fertile sites, Scots pine is out-competed by other, usually spruce or broad-leaved tree species and it is the national tree of Scotland. The bark is thick, scaly dark grey-brown on the lower trunk, the habit of the mature tree is distinctive due to its long, bare and straight trunk topped by a rounded or flat-topped mass of foliage. The lifespan is normally 150–300 years, with the oldest recorded specimens in Lapland, the shoots are light brown, with a spirally arranged scale-like pattern. On vigorous young trees the leaves can be twice as long, leaf persistence varies from two to four years in warmer climates, and up to nine years in subarctic regions. Seedlings up to one year old bear juvenile leaves, these are single, 2–3 cm long, flattened, the cone scales have a flat to pyramidal apophysis, with a small prickle on the umbo. The seeds are blackish, 3–5 mm in length with a pale brown 12–20 mm wing and are released when the open in spring 22–24 months after pollination. The pollen cones are yellow, occasionally pink, 8–12 mm long, over 100 Pinus sylvestris varieties have been described in the botanical literature, but only three or four are now accepted. They differ only minimally in morphology, but with more pronounced differences in genetic analysis, populations in westernmost Scotland are genetically distinct from those in the rest of Scotland and northern Europe, but not sufficiently to have been distinguished as a separate botanical variety. Trees in the far north of the range were formerly treated as var. lapponica. The bulk of the range, from Scotland and Spain to central Siberia, the Balkans, northern Turkey, Crimea, and the Caucasus. Foliage more consistently glaucous all year, not becoming duller in winter, mongolia and adjoining parts of southern Siberia and northwestern China. Foliage duller green, shoots grey-green, leaves occasionally up to 12 cm long, the Sierra Nevada in southern Spain and possibly other Spanish populations Kalenicz. Cones often with scales, but doubtfully distinguishable on morphology. From border regions between Russia and Ukraine, in central and southern Europe, it occurs with numerous additional species, including European black pine, mountain pine, Macedonian pine, and Swiss pine. In the eastern part of its range, it occurs with Siberian pine, the tree spread across the British Isles after the Last Glacial Maximum
7.
Wetland
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A wetland is a land area that is saturated with water, either permanently or seasonally, such that it takes on the characteristics of a distinct ecosystem. The primary factor that distinguishes wetlands from other forms or water bodies is the characteristic vegetation of aquatic plants. Wetlands play a number of roles in the environment, principally water purification, flood control, carbon sink, Wetlands are also considered the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal life. Wetlands occur naturally on every continent except Antarctica, the largest including the Amazon River basin, the West Siberian Plain, the water found in wetlands can be freshwater, brackish, or saltwater. The main wetland types include swamps, marshes, bogs, and fens, and sub-types include mangrove, carr, pocosin, the UN Millennium Ecosystem Assessment determined that environmental degradation is more prominent within wetland systems than any other ecosystem on Earth. International conservation efforts are being used in conjunction with the development of rapid assessment tools to people about wetland issues. Constructed wetlands can be used to treat municipal and industrial wastewater as well as stormwater runoff and they may also play a role in water-sensitive urban design. A patch of land that develops pools of water after a storm would not be considered a wetland. Wetlands have unique characteristics, they are distinguished from other water bodies or landforms based on their water level. Specifically, wetlands are characterized as having a table that stands at or near the land surface for a long enough period each year to support aquatic plants. A more concise definition is a community composed of hydric soil, Wetlands have also been described as ecotones, providing a transition between dry land and water bodies. In environmental decision-making, there are subsets of definitions that are agreed upon to make regulatory and policy decisions. A wetland is an ecosystem that arises when inundation by water produces soils dominated by anaerobic processes, There are four main kinds of wetlands – marsh, swamp, bog and fen. Some experts also recognize wet meadows and aquatic ecosystems as additional wetland types, the largest wetlands in the world include the swamp forests of the Amazon and the peatlands of Siberia. Under the Ramsar international wetland conservation treaty, wetlands are defined as follows, Article 2.1, may incorporate riparian and coastal zones adjacent to the wetlands, and islands or bodies of marine water deeper than six metres at low tide lying within the wetlands. Although the general definition given above applies around the world, each county, Wetlands generally include swamps, marshes, bogs and similar areas. This definition has been used in the enforcement of the Clean Water Act, some US states, such as Massachusetts and New York, have separate definitions that may differ from the federal governments. It is not uncommon for a wetland to be dry for long portions of the growing season, the most important factor producing wetlands is flooding
8.
Peat
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Peat, also called turf, is an accumulation of partially decayed vegetation or organic matter that is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem is the most efficient carbon sink on the planet because peatland plants capture the CO2 which is released from the peat. Sphagnum moss is one of the most common components in peat, soils that contain mostly peat are known as histosols. Peat forms in wetland conditions, where flooding obstructs flows of oxygen from the atmosphere, Peatlands, particularly bogs, are the most important source of peat. That said, other less common types, including fens, pocosins. Landscapes covered in peat are home to specific kinds of plants including Sphagnum moss, ericaceous shrubs, because organic matter accumulates over thousands of years, peat deposits also provide records of past vegetation and climates stored in plant remains like pollen. This allows humans to reconstruct past environments and study changes in land use. Peat is harvested as an important source of fuel in certain parts of the world, by volume, there are about 4 trillion cubic metres of peat in the world, covering a total of around 2% of the global land area, containing about 8 billion terajoules of energy. Over time, the formation of peat is often the first step in the formation of other fossil fuels such as coal. This is also the commonly used in the peat industry. At 106 g CO2/MJ, the carbon dioxide emission intensity of peat is higher than that of coal and natural gas, lastly, peat fires have been responsible for large public health disasters including the 1997 Southeast Asian haze. Peat forms when plant material does not fully decay in acidic and anaerobic conditions and it is composed mainly of wetland vegetation, principally bog plants including mosses, sedges, and shrubs. As it accumulates, the peat holds water and this slowly creates wetter conditions that allow the area of wetland to expand. Peatland features can include ponds, ridges, and raised bogs, most modern peat bogs formed 12,000 years ago in high latitudes after the glaciers retreated at the end of the last ice age. Peat usually accumulates slowly at the rate of about a millimetre per year, using Carbon-dating, scientists found that Peat in peatlands started forming 360 million years ago based on it currently containing 550 Gt of carbon. Peat material is either fibric, hemic, or sapric, fibric peats are the least decomposed and consist of intact fiber. Hemic peats are partially decomposed and sapric are the most decomposed, Phragmites peat is one composed of reed grass, Phragmites australis, and other grasses. It is denser than other types of peat
9.
Plant
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Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The term is generally limited to the green plants, which form an unranked clade Viridiplantae. This includes the plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Green plants have cell walls containing cellulose and obtain most of their energy from sunlight via photosynthesis by primary chloroplasts and their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic and have lost the ability to produce amounts of chlorophyll or to photosynthesize. Plants are characterized by sexual reproduction and alternation of generations, although reproduction is also common. There are about 300–315 thousand species of plants, of which the great majority, green plants provide most of the worlds molecular oxygen and are the basis of most of Earths ecologies, especially on land. Plants that produce grains, fruits and vegetables form humankinds basic foodstuffs, Plants play many roles in culture. They are used as ornaments and, until recently and in variety, they have served as the source of most medicines. The scientific study of plants is known as botany, a branch of biology, Plants are one of the two groups into which all living things were traditionally divided, the other is animals. The division goes back at least as far as Aristotle, who distinguished between plants, which generally do not move, and animals, which often are mobile to catch their food. Much later, when Linnaeus created the basis of the system of scientific classification. Since then, it has become clear that the plant kingdom as originally defined included several unrelated groups, however, these organisms are still often considered plants, particularly in popular contexts. When the name Plantae or plant is applied to a group of organisms or taxon. The evolutionary history of plants is not yet settled. Those which have been called plants are in bold, the way in which the groups of green algae are combined and named varies considerably between authors. Algae comprise several different groups of organisms which produce energy through photosynthesis, most conspicuous among the algae are the seaweeds, multicellular algae that may roughly resemble land plants, but are classified among the brown, red and green algae. Each of these groups also includes various microscopic and single-celled organisms
10.
Moss
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Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations. Although some species have conducting tissues, these are poorly developed. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores and they are typically 0. 2–10 cm tall, though some species are much larger. Dawsonia, the tallest moss in the world, can grow to 50 cm in height, mosses are commonly confused with lichens, hornworts, and liverworts. Lichens may superficially look like mosses, and have names that include the word moss. This contrasts with the pattern in all plants, where the diploid sporophyte generation is dominant. Mosses are now classified on their own as the division Bryophyta, the main commercial significance of mosses is as the main constituent of peat, although they are also used for decorative purposes, such as in gardens and in the florist trade. Traditional uses of mosses included as insulation and for the ability to absorb liquids up to 20 times their weight, botanically, mosses are non-vascular plants in the land plant division Bryophyta. They are small plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide. They differ from plants in lacking water-bearing xylem tracheids or vessels. As in liverworts and hornworts, the gametophyte generation is the dominant phase of the life cycle. This contrasts with the pattern in all plants, where the diploid sporophyte generation is dominant. Mosses reproduce using spores, not seeds, and have no flowers, Moss gametophytes have stems which may be simple or branched and upright or prostrate. Their leaves are simple, usually only a layer of cells with no internal air spaces. They do not have roots, but have threadlike rhizoids that anchor them to their substrate. Mosses do not absorb water or nutrients from their substrate through their rhizoids and they can be distinguished from liverworts by their multi-cellular rhizoids. Spore-bearing capsules or sporangia of mosses are borne singly on long, unbranched stems, thereby distinguishing them from the polysporangiophytes, the spore-bearing sporophytes are short-lived and dependent on the gametophyte for water supply and nutrition. Also, in most mosses, the capsule enlarges and matures after its stalk elongates
11.
Sphagnum
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Sphagnum is a genus of approximately 380 accepted species of mosses, commonly known as peat moss. The empty cells help retain water in drier conditions, hence, as sphagnum moss grows, it can slowly spread into drier conditions, forming larger mires, both raised bogs and blanket bogs. These peat accumulations then provide habitat for an array of peatland plants, including sedges and ericaceous shrubs, as well as orchids. Sphagnum and the formed from it do not decay readily because of the phenolic compounds embedded in the mosss cell walls. In addition, bogs, like all wetlands, develop anaerobic soil conditions, Peat moss can also acidify its surroundings by taking up cations, such as calcium and magnesium, and releasing hydrogen ions. Under the right conditions, peat can accumulate to a depth of many meters, different species of Sphagnum have different tolerance limits for flooding and pH, so any one peatland may have a number of different Sphagnum species. Individual peat moss plants consist of a stem, with tightly arranged clusters of branch fascicles usually consisting of two or three spreading branches and two to four hanging branches. The top of the plant, or capitulum, has compact clusters of young branches, along the stem are scattered leaves of various shapes, named stem leaves, the shape varies according to species. The leaves consist of two kinds of cells, small, green, living cells, and large, clear, structural, the latter have the large water-holding capacity. Sphagnum, like all other plants, has an alternation of generations, like other bryophytes. Unlike other mosses, the long-lived gametophytes do not rely upon rhizoids to assist in water uptake, Sphagnum species can be unisexual or bisexual, In North America, 80% of Sphagnum species are unisexual. Gametophytes have substantial asexual reproduction by fragmentation, producing much of the material in sphagnum peatlands. Swimming sperm fertilize eggs contained in archegonia that remain attached to the female gametophyte, the sporophyte is relatively short-lived, and consists almost entirely of a shiny green, spherical spore capsule that becomes black with spores. Sporophytes are raised on stalks to facilitate spore dispersal, but unlike other mosses, the spores germinate to produce minute protonemae, which start as filaments, can become thalloid, and can produce a few rhizoids. Soon afterwards the protonema develops buds and these differentiate into its characteristic, erect, leafy, branched gametophyte with chlorophyllose cells and this stage dominates the environment where Sphagnum grows, obliterating and burying the protonema and eventually building up into layers of dead moss called peat. Carpets of living Sphagnum may be attacked by fungi, and one fungus that is also a mushroom, Sphagnurus paluster. It is unknown whether the stage can produce such gemmae. Peat moss can be distinguished from other species by its unique branch clusters
12.
Muskeg
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Muskeg is an acidic soil type common in Arctic and boreal areas, although it is found in other northern climates as well. Muskeg is approximately synonymous with bogland, but muskeg is the term in Western Canada and Alaska. The term became common in these areas because it is of Cree origin, large tracts of this soil existing in Siberia may be called muskeg or bogland interchangeably. Muskeg consists of plants in various states of decomposition, ranging from fairly intact sphagnum moss, to sedge peat. Pieces of wood can make up five to 15 percent of the peat soil, Muskeg tends to have a water table near the surface. The sphagnum moss forming it can hold 15 to 30 times its own weight in water, Muskeg patches are ideal habitats for beavers, pitcher plants, agaric mushrooms and a variety of other organisms. Muskeg forms because permafrost, clay or bedrock prevents water drainage, the water from rain and snow collects, forming permanently waterlogged vegetation and stagnant pools. It needs two conditions to develop, abundant rain and cool summers, a dead plant that falls on dry soil is normally attacked by bacteria and fungi and quickly rots. If the same plant lands in water or on saturated soil, less oxygen is available under water, so aerobic bacteria and fungi fail to colonize the submerged debris effectively. In addition, cool temperatures retard bacterial and fungal growth and this causes slow decomposition, and thus the plant debris gradually accumulates to form peat and eventually muskeg. Depending on the topography of the land, muskeg can reach depths greater than 30 metres. Although at first glance resembles a plain covered with short grasses. Small stands of stunted and often dead trees, which vaguely resemble Bonsai trees, grow where land protrudes above the water table and its grassland appearance invites the unwary to walk on it, but even the most solid muskeg is spongy and waterlogged. Traveling through muskeg is a strange and dangerous experience for the unaccustomed, Muskeg can grow atop bodies of water, especially small ponds and streams. Because of the water beneath, the muskeg surface sometimes ripples underfoot, thinner patches allow large animals to fall through, becoming trapped under the muskeg and drowning. Moose are at a disadvantage in muskeg due to their long legs, minimal hoof area. Hunters and hikers may occasionally encounter young moose in muskeg-covered ponds submerged up to their torsos or necks, Muskeg can be a significant impediment to transportation. During the 1870s, muskeg in Northern Ontario was reported to have swallowed a railroad engine whole when a track was laid on muskeg instead of clearing down to bedrock
13.
Fen
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A fen is one of the main types of wetland, the others being grassy marshes, forested swamps, and peaty bogs. Along with bogs, fens are a kind of mire, Fens are minerotrophic peatlands, usually fed by mineral-rich surface water or groundwater. They are characterised by their chemistry, which is pH neutral or alkaline, with relatively high dissolved mineral levels. They are usually dominated by grasses and sedges, and typically have brown mosses in general including Scorpidium or Drepanocladus, Fens frequently have a high diversity of other plant species including carnivorous plants such as Pinguicula. They may also occur along lakes and rivers where seasonal changes in water level maintain wet soils with few woody plants. The distribution of species of fen plants is often closely connected to water regimes. Fens have a set of plant species, which sometimes provide the best indicators of environmental conditions. For example, fen indicator species in New York State include Carex flava, Cladium mariscoides, Potentilla fruticosa, Pogonia ophioglossoides and Parnassia glauca. Fens are distinguished from bogs, which are acidic, low in minerals, Fens have been damaged in the past by land drainage, and also by peat cutting. Some are now being restored with modern management methods. The principal challenges are to restore natural water regimes, to maintain the quality of water. Carr is the northern European equivalent of the swamp of the southeastern United States. It is a fen overgrown with small trees of species such as willow or alder. In general, fens may change in composition as peat accumulates, a list of species found in a fen can therefore cover a range of species from those remaining from the earlier stage in the successional development to the pioneers of the succeeding stage. Where streams of water run through bog, these are often lined by strips of fen. Temporary flooding by beavers can have effects on fens. Shakespeare used the term fen-sucked to describe the fog in King Lear, media related to Fens at Wikimedia Commons
14.
Ericaceae
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The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acid and infertile growing conditions. The family is large, with c.4250 known species spread across 124 genera, the many well-known and economically important members of the Ericaceae include the cranberry, blueberry, huckleberry, rhododendron, and various common heaths and heathers. The Ericaceae contain a diverse range of taxa, including herbs, dwarf shrubs, shrubs. Their leaves are alternate or whorled, simple and without stipules. Their flowers are hermaphrodite and show considerable variability, the petals are often fused with shapes ranging from narrowly tubular to funnelform or widely bowl-shaped. The corollas are usually symmetrical, but many flowers of the genus Rhododendron are somewhat bilaterally symmetrical. Adanson used the term Vaccinia to describe a family. The name comes from the type genus Erica, which appears to be derived from the Greek word ereike, the exact meaning is difficult to interpret, but some sources show it as meaning heather. Historically, the Ericaceae included both subfamilies and tribes, within tribe Rhodoreae, five genera were described, Rhododendron L. Therorhodion Small, Ledum L. Tsusiophyllum Max. Menziesia J. E. Smith, that were transferred into Rhododendron. The move significantly increased the morphological and geographical range found within the group, the Ericaceae have a nearly worldwide distribution. They are absent from continental Antarctica, parts of the high Arctic, central Greenland, northern and central Australia, the family is largely composed of plants that can tolerate acidic, infertile conditions. Like other stress-tolerant plants, many Ericaceae have mycorrhizal fungi to assist with extracting nutrients from infertile soils and this trait is not found in the Clethraceae and Cyrillaceae, the two families most closely related to the Ericaceae. Most Ericaceae form a distinctive accumulation of mycorrhizae, in which grow in and around the roots. The Pyroloideae are mixotrophic and gain sugars from the mycorrhizae, as well as nutrients, in many parts of the world, a heath or heathland is an environment characterised by an open dwarf-shrub community found on low-quality acidic soils, generally dominated by plants in the Ericaceae. A common example is Erica tetralix and this plant family is also typical of peat bogs and blanket bogs, examples include Rhododendron groenlandicum and Kalmia polifolia. In eastern North America, members of this family grow in association with an oak canopy. Some evidence suggests eutrophic rainwater can convert ericoid heaths with species such as Erica tetralix to grasslands, nitrogen is particularly suspect in this regard, and may be causing measurable changes to the distribution and abundance of some ericaceous species
15.
Carbon sink
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A carbon sink is a natural or artificial reservoir that accumulates and stores some carbon-containing chemical compound for an indefinite period. The process by which carbon sinks remove carbon dioxide from the atmosphere is known as carbon sequestration, public awareness of the significance of CO2 sinks has grown since passage of the Kyoto Protocol, which promotes their use as a form of carbon offset. There are also different strategies used to enhance this process, because growing vegetation takes in carbon dioxide, the Kyoto Protocol allows Annex I countries with large areas of growing forests to issue Removal Units to recognize the sequestration of carbon. The additional units make it easier for them to achieve their target emission levels and it is estimated that forests absorb between 10 and 20 tons of carbon dioxide per hectare each year, through photosynthetic conversion into starch, cellulose, lignin, and wooden biomass. While this has been documented for temperate forests and plantations. Some countries seek to trade rights in carbon emission markets. If overall limits on greenhouse gas emission are put into place, cap, there is as yet no carbon audit regime for all such markets globally, and none is specified in the Kyoto Protocol. In the Clean Development Mechanism, only afforestation and reforestation are eligible to produce certified emission reductions in the first commitment period of the Kyoto Protocol. Forest conservation activities or activities avoiding deforestation, which would result in emission reduction through the conservation of existing stocks, are not eligible at this time. Also, agricultural carbon sequestration is not possible yet, soils represent a short to long-term carbon storage medium, and contains more carbon than all terrestrial vegetation and the atmosphere combined. Plant litter and other biomass including charcoal accumulates as organic matter in soils, more recalcitrant organic carbon polymers such as cellulose, hemi-cellulose, lignin, aliphatic compounds, waxes and terpenoids are collectively retained as humus. Organic matter tends to accumulate in litter and soils of colder regions such as the forests of North America. Leaf litter and humus are rapidly oxidized and poorly retained in sub-tropical and tropical climate due to high temperatures. Areas where shifting cultivation or slash and burn agriculture are practiced are generally only fertile for 2–3 years before they are abandoned. These tropical jungles are similar to coral reefs in that they are efficient at conserving and circulating necessary nutrients. Much organic carbon retained in many areas worldwide has been severely depleted due to intensive farming practices. Grasslands contribute to organic matter, stored mainly in their extensive fibrous root mats. Due in part to the conditions of these regions, these soils can accumulate significant quantities of organic matter
16.
Acid
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An acid is a molecule or ion capable of donating a hydron, or, alternatively, capable of forming a covalent bond with an electron pair. The first category of acids is the donors or Brønsted acids. In the special case of solutions, proton donors form the hydronium ion H3O+ and are known as Arrhenius acids. Brønsted and Lowry generalized the Arrhenius theory to include non-aqueous solvents, acids form aqueous solutions with a sour taste, can turn blue litmus red, and react with bases and certain metals to form salts. The word acid is derived from the Latin acidus/acēre meaning sour, an aqueous solution of an acid has a pH less than 7 and is colloquially also referred to as acid, while the strict definition refers only to the solute. A lower pH means a higher acidity, and thus a higher concentration of hydrogen ions in the solution. Chemicals or substances having the property of an acid are said to be acidic, common aqueous acids include hydrochloric acid, acetic acid, sulfuric acid, and citric acid. As these examples show, acids can be solutions or pure substances, strong acids and some concentrated weak acids are corrosive, but there are exceptions such as carboranes and boric acid. The second category of acids are Lewis acids, which form a covalent bond with an electron pair, however, hydrogen chloride, acetic acid, and most other Brønsted-Lowry acids cannot form a covalent bond with an electron pair and are therefore not Lewis acids. Conversely, many Lewis acids are not Arrhenius or Brønsted-Lowry acids, in modern terminology, an acid is implicitly a Brønsted acid and not a Lewis acid, since chemists almost always refer to a Lewis acid explicitly as a Lewis acid. Modern definitions are concerned with the chemical reactions common to all acids. Most acids encountered in life are aqueous solutions, or can be dissolved in water, so the Arrhenius. The Brønsted-Lowry definition is the most widely used definition, unless otherwise specified, hydronium ions are acids according to all three definitions. Interestingly, although alcohols and amines can be Brønsted-Lowry acids, they can function as Lewis bases due to the lone pairs of electrons on their oxygen and nitrogen atoms. The Swedish chemist Svante Arrhenius attributed the properties of acidity to hydrogen ions or protons in 1884, an Arrhenius acid is a substance that, when added to water, increases the concentration of H+ ions in the water. Thus, an Arrhenius acid can also be described as a substance that increases the concentration of ions when added to water. Examples include molecular substances such as HCl and acetic acid, an Arrhenius base, on the other hand, is a substance which increases the concentration of hydroxide ions when dissolved in water. Thus, an Arrhenius acid could also be said to be one that decreases hydroxide concentration, in an acidic solution, the concentration of hydronium ions is greater than 10−7 moles per liter
17.
Tannin
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A tannin is an astringent, polyphenolic biomolecule that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. The term tannin refers to the use of wood tannins from oak in tanning hides into leather, hence the words tan. The tannin compounds are distributed in many species of plants, where they play a role in protection from predation, and perhaps also as pesticides. The astringency from the tannins is what causes the dry and puckery feeling in the following the consumption of unripened fruit or red wine or tea. Likewise, the destruction or modification of tannins with time plays an important role when determining harvesting times, Tannins have molecular weights ranging from 500 to over 3,000 and up to 20,000. There are three classes of tannins, Shown below are the base unit or monomer of the tannin. Particularly in the flavone-derived tannins, the base shown must be heavily hydroxylated and polymerized in order to give the high molecular weight polyphenol motif that characterizes tannins, typically, tannin molecules require at least 12 hydroxyl groups and at least five phenyl groups to function as protein binders. Oligostilbenoids are oligomeric forms of stilbenoids and constitute a class of tannins, pseudo tannins are low molecular weight compounds associated with other compounds. They do not change color during the Goldbeaters skin test, unlike hydrolysable and condensed tannins, some examples of pseudo tannins and their sources are, Ellagic acid, gallic acid, and pyrogallic acid were first discovered by chemist Henri Braconnot in 1831. Julius Löwe was the first person to synthesize ellagic acid by heating gallic acid with arsenic acid or silver oxide, maximilian Nierenstein studied natural phenols and tannins found in different plant species. Working with Arthur George Perkin, he prepared ellagic acid from algarobilla and he suggested its formation from galloyl-glycine by Penicillium in 1915. Tannase is an enzyme that Nierenstein used to produce acid from gallotannins. He proved the presence of catechin in cocoa beans in 1931 and he showed in 1945 that luteic acid, a molecule present in the myrobalanitannin, a tannin found in the fruit of Terminalia chebula, is an intermediary compound in the synthesis of ellagic acid. At these times, molecule formulas were determined through combustion analysis, the discovery in 1943 by Martin and Synge of paper chromatography provided for the first time the means of surveying the phenolic constituents of plants and for their separation and identification. There was an explosion of activity in this field after 1945, none more so than that of Edgar Charles Bate-Smith and it is referred to as the White–Bate-Smith–Swain–Haslam definition. Tannins are distributed in species throughout the plant kingdom and they are commonly found in both gymnosperms as well as angiosperms. Mole studied the distribution of tannin in 180 families of dicotyledons and 44 families of monocotyledons, most families of dicot contain tannin-free species. To the family of the oak, Fagaceae, 73% of the species tested contain tannin, for those of acacias, Mimosaceae, only 39% of the species tested contain tannin, among Solanaceae rate drops to 6% and 4% for the Asteraceae
18.
Biodiversity
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Biodiversity, a contraction of biological diversity, generally refers to the variety and variability of life on Earth. One of the most widely used definitions defines it in terms of the variability within species and it is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation within an area, biome, terrestrial biodiversity tends to be greater near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth, and is richest in the tropics and these tropical forest ecosystems cover less than 10 per cent of earths surface, and contain about 90 percent of the worlds species. Marine biodiversity tends to be highest along coasts in the Western Pacific, there are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time, the number and variety of plants, animals and other organisms that exist is known as biodiversity. It is a component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines. The richness of biodiversity depends on the conditions and area of the region. All species of plants taken together are known as flora and about 300,000 species of plants are known to date, all species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc. Rapid environmental changes typically cause mass extinctions, more than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earths current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. More recently, in May 2016, scientists reported that 1 trillion species are estimated to be on Earth currently with only one-thousandth of one percent described, the total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037 and weighs 50 billion tonnes. In comparison, the mass of the biosphere has been estimated to be as much as 4 TtC. In July 2016, scientists reported identifying a set of 355 genes from the Last Universal Common Ancestor of all living on Earth. The age of the Earth is about 4.54 billion years old, there are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a substance is graphite in 3.7 billion-year-old meta-sedimentary rocks discovered in Western Greenland. More recently, in 2015, remains of life were found in 4.1 billion-year-old rocks in Western Australia. According to one of the researchers, If life arose relatively quickly on Earth, then it could be common in the universe
19.
Sarracenia purpurea
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Sarracenia purpurea, commonly known as the purple pitcher plant, northern pitcher plant, or side-saddle flower, is a carnivorous plant in the family Sarraceniaceae. Its range includes the Eastern seaboard and Gulf Coast of the United States, the Great Lakes region, all of Canada, Washington state, and Alaska. That makes it the most common and broadly distributed pitcher plant, the species is the floral emblem of the Canadian province of Newfoundland and Labrador. The species was introduced into bogs in parts of Ireland, where it has proliferated and it is an introduced and naturalized species in northern California. It is found in habitats of the carnivorous species Darlingtonia californica, in the Klamath Mountains. Like other species of Sarracenia, S. purpurea obtains most of its nutrients through prey capture, however, prey acquisition is said to be inefficient, with less than 1% of the visiting prey captured within the pitcher. Even so, anecdotal evidence by growers often shows that pitchers quickly fill up with prey during the summer months. Prey fall into the pitcher and drown in the rainwater that collects in the base of each leaf. Prey items such as flies, ants, spiders, and even moths, are digested by an invertebrate community, made up mostly by the mosquito Wyeomyia smithii. The relationship between W. smithii and S. purpurea is an example of commensalism, protists, rotifers, and bacteria form the base of inquiline food web that shreds and mineralizes available prey, making nutrients available to the plant. The species is divided into two subspecies, S. purpurea subsp. The former is found from New Jersey north, while the latter is found from New Jersey south, venosa var. burkii was described as a species of its own, Sarracenia rosea. This re-ranking has been debated among carnivorous plant enthusiasts since then, the following species and infraspecific taxa are usually recognized, Sarracenia purpurea subsp. Purpurea f. heterophylla Sarracenia purpurea subsp, purpurea f. ruplicola Sarracenia purpurea subsp. Venosa var. burkii Sarracenia purpurea subsp, venosa var. burkii f. luteola Sarracenia purpurea subsp. Venosa var. USDA Plants Profile for Sarracenia purpurea Sarracenia purpurea at Barry Rices carnivorous plant FAQ, botanical Society of America, Sarracenia - the Pitcher Plants UC Photos gallery — Sarracenia purpurea
20.
North America
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North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be considered a subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea. North America covers an area of about 24,709,000 square kilometers, about 16. 5% of the land area. North America is the third largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 565 million people in 23 independent states, or about 7. 5% of the worlds population, North America was reached by its first human populations during the last glacial period, via crossing the Bering land bridge. The so-called Paleo-Indian period is taken to have lasted until about 10,000 years ago, the Classic stage spans roughly the 6th to 13th centuries. The Pre-Columbian era ended with the migrations and the arrival of European settlers during the Age of Discovery. Present-day cultural and ethnic patterns reflect different kind of interactions between European colonists, indigenous peoples, African slaves and their descendants, European influences are strongest in the northern parts of the continent while indigenous and African influences are relatively stronger in the south. Because of the history of colonialism, most North Americans speak English, Spanish or French, the Americas are usually accepted as having been named after the Italian explorer Amerigo Vespucci by the German cartographers Martin Waldseemüller and Matthias Ringmann. Vespucci, who explored South America between 1497 and 1502, was the first European to suggest that the Americas were not the East Indies, but a different landmass previously unknown by Europeans. In 1507, Waldseemüller produced a map, in which he placed the word America on the continent of South America. He explained the rationale for the name in the accompanying book Cosmographiae Introductio, for Waldseemüller, no one should object to the naming of the land after its discoverer. He used the Latinized version of Vespuccis name, but in its feminine form America, following the examples of Europa, Asia and Africa. Later, other mapmakers extended the name America to the continent, In 1538. Some argue that the convention is to use the surname for naming discoveries except in the case of royalty, a minutely explored belief that has been advanced is that America was named for a Spanish sailor bearing the ancient Visigothic name of Amairick. Another is that the name is rooted in a Native American language, the term North America maintains various definitions in accordance with location and context. In Canadian English, North America may be used to refer to the United States, alternatively, usage sometimes includes Greenland and Mexico, as well as offshore islands
21.
Temperate climate
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In geography, temperate or tepid latitudes of Earth lie between the tropics and the polar regions. The temperatures in these regions are relatively moderate, rather than extremely hot or cold. The north temperate zone extends from the Tropic of Cancer to the Arctic Circle, the south temperate zone extends from the Tropic of Capricorn to the Antarctic Circle. In some climate classifications, the zone is often divided into several smaller climate zones. These include Humid subtropical climate, Mediterranean climate, oceanic, subtropical climates are located between 23. 5° and 35. 0° north or south latitude on the eastern or leeward sides of landmasses. This climate has long, generally hot, summers and short, mild winters and these climates may occur in southern Asia, the southeastern United States, parts of eastern Australia, and in eastern coastal South America. Mediterranean climates, occur between 30° and 42° north and south latitude, on the sides of landmasses. This climate has hot summers and short mild winters, however, seasonal rainfall is the opposite of that of the subtropical humid type. These climates occur near the rimlands of the Mediterranean Sea, in western Australia, in California, the oceanic climates occur in the higher middle latitudes, between 45° and 60° north and south latitude. They are created by the flow from the cool high latitude oceans to their west. This causes the climate to have cool summers and cool winters, annual rainfall is spread throughout the entire year. Regions with this climate include Western Europe, northwestern North America, the Continental climates occur in middle latitudes, between 35° or 40° to 55°. These climates are normally inland or on sides of landmasses. They feature warm to hot summers and cold winters, with a large temperature variation. Regions with this climate include northern temperate Asia, the northern United States, southern Canada, the vast majority of the worlds human population resides in temperate zones, especially in the northern hemisphere, due to its greater mass of land. The richest temperate flora in the world is found in southern Africa, geographical zone Habitat Köppen climate classification Middle latitudes Polar circle Subtropics
22.
Northern Hemisphere
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The Northern Hemisphere is the half of Earth that is north of the equator. For other planets in the Solar System, north is defined as being in the celestial hemisphere relative to the invariable plane of the solar system as Earths North pole. Due to the Earths axial tilt, winter in the Northern Hemisphere lasts from the December solstice to the March Equinox, the dates vary each year due to the difference between the calendar year and the astronomical year. Its surface is 60. 7% water, compared with 80. 9% water in the case of the Southern Hemisphere, the Arctic is the region north of the Arctic Circle. Its climate is characterized by cold winters and cool summers, precipitation mostly comes in the form of snow. The Arctic experiences some days in summer when the Sun never sets, the duration of these phases varies from one day for locations right on the Arctic Circle to several months near the North Pole, which is the middle of the Northern Hemisphere. Between the Arctic Circle and the Tropic of Cancer lies the Northern Temperate Zone, the changes in these regions between summer and winter are generally mild, rather than extreme hot or cold. However, a temperate climate can have very unpredictable weather, tropical regions are generally hot all year round and tend to experience a rainy season during the summer months, and a dry season during the winter months. In the Northern Hemisphere, objects moving across or above the surface of the Earth tend to turn to the right because of the coriolis effect, as a result, large-scale horizontal flows of air or water tend to form clockwise-turning gyres. These are best seen in circulation patterns in the North Atlantic. For the same reason, flows of air down toward the surface of the Earth tend to spread across the surface in a clockwise pattern. Thus, clockwise air circulation is characteristic of high pressure weather cells in the Northern Hemisphere, conversely, air rising from the northern surface of the Earth tends to draw air toward it in a counterclockwise pattern. Hurricanes and tropical storms spin counter-clockwise in the Northern Hemisphere, the shadow of a sundial moves clockwise in the Northern Hemisphere. When viewed from the Northern Hemisphere, the Moon appears inverted compared to a view from the Southern Hemisphere, the North Pole faces away from the galactic center of the Milky Way. The Northern Hemisphere is home to approximately 6.57 billion people which is around 90% of the total human population of 7.3 billion people
23.
Siberia
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Siberia is an extensive geographical region, and by the broadest definition is also known as North Asia. Siberia has historically been a part of Russia since the 17th century, the territory of Siberia extends eastwards from the Ural Mountains to the watershed between the Pacific and Arctic drainage basins. It stretches southwards from the Arctic Ocean to the hills of north-central Kazakhstan and to the borders of Mongolia. With an area of 13.1 million square kilometres, Siberia accounts for 77% of Russias land area and this is equivalent to an average population density of about 3 inhabitants per square kilometre, making Siberia one of the most sparsely populated regions on Earth. If it were a country by itself, it would still be the largest country in area, the origin of the name is unknown. Some sources say that Siberia originates from the Siberian Tatar word for sleeping land, another account sees the name as the ancient tribal ethnonym of the Sirtya, a folk, which spoke a language that later evolved into the Ugric languages. This ethnic group was assimilated to the Siberian Tatar people. The modern usage of the name was recorded in the Russian language after the Empires conquest of the Siberian Khanate, a further variant claims that the region was named after the Xibe people. The Polish historian Chycliczkowski has proposed that the name derives from the word for north. He said that the neighbouring Chinese, Arabs and Mongolians would not have known Russian and he suggests that the name is a combination of two words, su and bir. The region is of significance, as it contains bodies of prehistoric animals from the Pleistocene Epoch. Specimens of Goldfuss cave lion cubs, Yuka and another woolly mammoth from Oymyakon, a rhinoceros from the Kolyma River. The Siberian Traps were formed by one of the largest known volcanic events of the last 500 million years of Earths geological history. They continued for a million years and are considered a cause of the Great Dying about 250 million years ago. At least three species of human lived in Southern Siberia around 40,000 years ago, H. sapiens, H. neanderthalensis, the last was determined in 2010, by DNA evidence, to be a new species. Siberia was inhabited by different groups of such as the Enets, the Nenets, the Huns, the Scythians. The Khan of Sibir in the vicinity of modern Tobolsk was known as a prominent figure who endorsed Kubrat as Khagan of Old Great Bulgaria in 630, the Mongols conquered a large part of this area early in the 13th century. With the breakup of the Golden Horde, the autonomous Khanate of Sibir was established in the late 15th century, turkic-speaking Yakut migrated north from the Lake Baikal region under pressure from the Mongol tribes during the 13th to 15th century
24.
Russia
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Russia, also officially the Russian Federation, is a country in Eurasia. The European western part of the country is more populated and urbanised than the eastern. Russias capital Moscow is one of the largest cities in the world, other urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a range of environments. It shares maritime borders with Japan by the Sea of Okhotsk, the East Slavs emerged as a recognizable group in Europe between the 3rd and 8th centuries AD. Founded and ruled by a Varangian warrior elite and their descendants, in 988 it adopted Orthodox Christianity from the Byzantine Empire, beginning the synthesis of Byzantine and Slavic cultures that defined Russian culture for the next millennium. Rus ultimately disintegrated into a number of states, most of the Rus lands were overrun by the Mongol invasion. The Soviet Union played a role in the Allied victory in World War II. The Soviet era saw some of the most significant technological achievements of the 20th century, including the worlds first human-made satellite and the launching of the first humans in space. By the end of 1990, the Soviet Union had the second largest economy, largest standing military in the world. It is governed as a federal semi-presidential republic, the Russian economy ranks as the twelfth largest by nominal GDP and sixth largest by purchasing power parity in 2015. Russias extensive mineral and energy resources are the largest such reserves in the world, making it one of the producers of oil. The country is one of the five recognized nuclear weapons states and possesses the largest stockpile of weapons of mass destruction, Russia is a great power as well as a regional power and has been characterised as a potential superpower. The name Russia is derived from Rus, a state populated mostly by the East Slavs. However, this name became more prominent in the later history, and the country typically was called by its inhabitants Русская Земля. In order to distinguish this state from other states derived from it, it is denoted as Kievan Rus by modern historiography, an old Latin version of the name Rus was Ruthenia, mostly applied to the western and southern regions of Rus that were adjacent to Catholic Europe. The current name of the country, Россия, comes from the Byzantine Greek designation of the Kievan Rus, the standard way to refer to citizens of Russia is Russians in English and rossiyane in Russian. There are two Russian words which are translated into English as Russians
25.
Hudson Bay Lowlands
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Hudson Bay Lowlands are a vast wetland located between the Canadian Shield and southern shores of Hudson Bay and James Bay. Most of the lies within the province of Ontario, with smaller portions reaching into Manitoba. This is the largest wetland in Canada, and one of the largest in the world, the region can be subdivided into three bands running roughly northwest to southeast, the Coastal Hudson Bay Lowland, Hudson Bay Lowland, and James Bay Lowland. The entire area was covered by ice during the last glaciation, plants from more temperate regions mix with arctic species. A majority of the wetland is peat bog, although saline marshes occur along the coast, the wetlands provide important habitat for migratory birds including shorebirds and waterfowl. Large mammals include polar bear and wolverine, the local Ojibwa and Cree most likely came into contact with the region but did not populate the region due to the harsh, undesirable conditions and poor drainage patterns of the area. When Europeans arrived in the area, The Hudsons Bay Company set up trading posts such as Rankin Inlet, however, these never grew into sizable towns, again because of the poor living conditions and climate. To this day, not all of the lowlands have been properly explored, there are a few small First Nations settlements on the southern shore of Hudson Bay Lowlands at places like Moose Factory, Moosonee, Attawapiskat, and Fort Severn. The region is named after the inland sea, Hudson Bay. The entire area drains into the bay through rivers such as the Churchill, Severn, the region is located in the extreme north of Ontario, extending into both Manitoba to the west and Quebec in the east, and covers around 25 percent of Ontarios total land area. The area was covered in ice during the last ice age, peatlands, both bogs and fens now cover much of the landscape, with other kinds of wetlands along rivers and the coast. The climate of the region depends largely on the surface of the bay. In the winter the bay freezes over again, bringing freezing temperatures, the vegetation is mostly conifer forest and peatland, with typical sub arctic and boreal plants. Hudson Bay in The Canadian Encyclopedia Hudson Bay Lowlands - Ottertooth Arctic Institute paper by Hugo Sjörs, Bogs, Hudson Bay Lowlands show recent effects of global warming. Max Paris Environment Unit, CBC News
26.
Magellanic subpolar forests
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The Magellanic subpolar forests are a terrestrial ecoregion of southernmost South America, covering parts of southern Chile and Argentina, and are part of the Neotropic ecozone. It is a temperate broadleaf and mixed forests ecoregion, and contains the worlds southernmost forests, north of roughly 48° south latitude lies the Valdivian temperate rain forests ecoregion, which shares many affinities with the Magellanic ecoregion in plant and animal life. To the east lie the drier grasslands and shrublands ecoregions of Patagonia. Average annual temperatures vary from 6 °C in the north to 3 °C in the south, snowfalls can occur even in summer. Very strong winds whip the region and these trees to grow in twisted and bent shapes fighting against the wind. Species of Nothofagus, including N. betuloides, N. antarctica, the Magellanic ecoregion does not have the same species richness as the milder Valdivian ecoregion, both on account of its colder climate and its recent glaciation. The Magellanic ecoregion has three main plant communities, the Magellanic moorland, the evergreen Magellanic rainforest, and the deciduous Magellanic forest, the Magellanic moorland occurs on the western edge of the region where the oceanic influence is strongest. High rainfall of 5,000 mm /year is typical of the moorland, as are cool temperatures, strong winds, bad drainage conditions, and rocky ground with generally thin soil. Most of the consists of a mosaic of low-growing plants, including dwarf shrubs and wind-sheared trees, cushion plants, grasses. These plants can form an underlayer of blanket peat and boggy areas, in more sheltered areas, small stands of evergreen forest can be found, which include Nothofagus betuloides, Drimys winteri, Lepidothamnus fonkii, and Pilgerodendron uviferum. Farther from the ocean, in more moderate areas less exposed to the wind and rain. In the better established forest stands, a shrub layer may develop. In exposed, rocky, and poorly drained areas, pockets of deciduous Nothofagus antarctica, the Magellanic deciduous forest is made up mostly of Nothofagus pumilio and Nothofagus antarctica. When one reaches the drier rain shadow east of the mountains, in open spaces some Succulent fruits can be found, Chilean strawberry, and calafate, they used to complement the nourishment of the native peoples. These forests are peerless in their endurance of cold summers and violent subpolar winds, the following species from Tierra del Fuego, Drimys winteri, Nothofagus antarctica, Nothofagus pumilio, and Nothofagus betuloides, have been successfully introduced to the Faroe Islands. As a general rule, Fueguian trees show better signs of acclimation than those from Continental Northern Europe to conditions in the Faroe Islands, the Magellanic subpolar forests are home to the southern pudú, the worlds smallest deer, which stands only 35–45 cm high at the shoulder. Other animal species include the cougar and the southern river otter. Endemic rodents include the Patagonian rat, the mouse, and the viscacha
27.
Northern Europe
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Northern Europe is the northern part or region of Europe. However, narrower definitions may also be used based on geographical factors, such as climate. Greenland, geographically a part of North America, is politically a part of the Kingdom of Denmark, while Northern Europe overlaps with most of Northwestern Europe, north-Central Europe, and Northeastern Europe, it does not border Southern Europe. Countries which are central-western, central-central, or central-eastern are generally considered part of neither Northern Europe or Southern Europe. Historically, when Europe was dominated by the Mediterranean region, everything not near this sea was termed Northern Europe, including southern Germany, all of the Low Countries and this meaning is still used today in some contexts, such as in discussions of the Northern Renaissance. In medieval times, the term Thule was used to mean a place in the extreme northern reaches of the continent. The region has a south west extreme of around 50 degrees north, the entire regions climate is mildly affected by the Gulf Stream. From the west climates vary from maritime and maritime subarctic climates, in the north and central climates are generally subarctic or Arctic and to the east climates are mostly subarctic and temperate/continental. With the exception of the United Kingdom and Ireland, Northern European countries are known for harsh winters with temperatures reaching as low as minus 50 degrees Celsius in some parts. Countries in Northern Europe have large, developed economies and some of the highest standards of living in the world and they often score highly on surveys measuring quality of life, such as the Human Development Index
28.
Republic of the Congo
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The Republic of the Congo, also known as the Congo Republic, West Congo, Congo-Brazzaville or simply Congo, is a country located in Central Africa. The region was dominated by Bantu-speaking tribes, who built trade links leading into the Congo River basin, Congo-Brazzaville was formerly part of the French colony of Equatorial Africa. Upon independence in 1960, the colony of French Congo became the Republic of the Congo. The Peoples Republic of the Congo was a Marxist–Leninist one-party state from 1970 to 1991, Bantu-speaking peoples who founded tribes during the Bantu expansions largely displaced and absorbed the earliest inhabitants of the region, the Pygmy people, about 1500 BC. Several Bantu kingdoms—notably those of the Kongo, the Loango, the Portuguese explorer Diogo Cão reached the mouth of the Congo in 1484. Commercial relationships quickly grew between the inland Bantu kingdoms and European merchants who traded various commodities, manufactured goods, the area north of the Congo River came under French sovereignty in 1880 as a result of Pierre de Brazzas treaty with King Makoko of the Bateke. This Congo Colony became known first as French Congo, then as Middle Congo in 1903, in 1908, France organized French Equatorial Africa, comprising Middle Congo, Gabon, Chad, and Oubangui-Chari. The French designated Brazzaville as the federal capital, economic development during the first 50 years of colonial rule in Congo centered on natural-resource extraction. The methods were brutal, construction of the Congo–Ocean Railroad following World War I has been estimated to have cost at least 14,000 lives. During the Nazi occupation of France during World War II, Brazzaville functioned as the capital of Free France between 1940 and 1943. The Brazzaville Conference of 1944 heralded a period of reform in French colonial policy. Congo benefited from the expansion of colonial administrative and infrastructure spending as a result of its central geographic location within AEF. It also received a local legislature after the adoption of the 1946 constitution that established the Fourth Republic, during these reforms, Middle Congo became known as the Republic of the Congo in 1958 and published its first constitution in 1959. Antagonism between the pro-Opangault Mbochis and the pro-Youlou Balalis resulted in a series of riots in Brazzaville in February 1959, the Republic of the Congo received full independence from France on 15 August 1960. Fulbert Youlou ruled as the countrys first president until labour elements, the Congolese military took charge of the country briefly and installed a civilian provisional government headed by Alphonse Massamba-Débat. Resentment and bitterness between the Baali and the Mbochi peoples brought upheaval in Brazzaville, the French army arrived to quell the turmoil. New elections took place in April 1959, by the time the Congo became independent, Jacques Opangault, the former opponent of Youlou, agreed to serve under him. Youlou became the first President of the Republic of the Congo, since the political tension was so high in Pointe-Noire, Youlou moved the capital to Brazzaville
29.
England
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England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west, the Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east, the country covers five-eighths of the island of Great Britain in its centre and south, and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight. England became a state in the 10th century, and since the Age of Discovery. The Industrial Revolution began in 18th-century England, transforming its society into the worlds first industrialised nation, Englands terrain mostly comprises low hills and plains, especially in central and southern England. However, there are uplands in the north and in the southwest, the capital is London, which is the largest metropolitan area in both the United Kingdom and the European Union. In 1801, Great Britain was united with the Kingdom of Ireland through another Act of Union to become the United Kingdom of Great Britain and Ireland. In 1922 the Irish Free State seceded from the United Kingdom, leading to the latter being renamed the United Kingdom of Great Britain, the name England is derived from the Old English name Englaland, which means land of the Angles. The Angles were one of the Germanic tribes that settled in Great Britain during the Early Middle Ages, the Angles came from the Angeln peninsula in the Bay of Kiel area of the Baltic Sea. The earliest recorded use of the term, as Engla londe, is in the ninth century translation into Old English of Bedes Ecclesiastical History of the English People. According to the Oxford English Dictionary, its spelling was first used in 1538. The earliest attested reference to the Angles occurs in the 1st-century work by Tacitus, Germania, the etymology of the tribal name itself is disputed by scholars, it has been suggested that it derives from the shape of the Angeln peninsula, an angular shape. An alternative name for England is Albion, the name Albion originally referred to the entire island of Great Britain. The nominally earliest record of the name appears in the Aristotelian Corpus, specifically the 4th century BC De Mundo, in it are two very large islands called Britannia, these are Albion and Ierne. But modern scholarly consensus ascribes De Mundo not to Aristotle but to Pseudo-Aristotle, the word Albion or insula Albionum has two possible origins. Albion is now applied to England in a poetic capacity. Another romantic name for England is Loegria, related to the Welsh word for England, Lloegr, the earliest known evidence of human presence in the area now known as England was that of Homo antecessor, dating to approximately 780,000 years ago. The oldest proto-human bones discovered in England date from 500,000 years ago, Modern humans are known to have inhabited the area during the Upper Paleolithic period, though permanent settlements were only established within the last 6,000 years
30.
Democratic Republic of Congo
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The Democratic Republic of the Congo, also known as DR Congo, DRC, DROC, East Congo, Congo-Kinshasa, or simply the Congo is a country located in Central Africa. From 1971 to 1997 it was named, and is still called, Zaire. It is the second-largest country in Africa by area and eleventh largest in the world, the Congolese Civil Wars, which began in 1996, brought about the end of Mobutu Sese Sekos 32-year reign and devastated the country. These wars ultimately involved nine African nations, multiple groups of UN peacekeepers and twenty armed groups, besides the capital, Kinshasa, the other major cities, Lubumbashi and Mbuji-Mayi, are both mining communities. DR Congos largest export is raw minerals, with China accepting over 50% of DRCs exports in 2012, as of 2015, according to the Human Development Index, DR Congo has a low level of human development, ranking 176 out of 187 countries. The country was known officially as the Democratic Republic of the Congo from 1965 to 27 October 1971, in 1992, the Sovereign National Conference voted to change the name of the country to the Democratic Republic of the Congo, but the change was not put into practice. The countrys name was restored by former president Laurent-Désiré Kabila following the fall of longtime dictator Mobutu Sese Seko in 1997, some historians think that Bantu peoples began settling in the extreme northwest of Central Africa at the beginning of the 5th century and then gradually started to expand southward. Their propagation was accelerated by the transition from Stone Age to Iron Age techniques, the people living in the south and southwest were mostly San Bushmen and hunter-gatherer groups, whose technology involved only minimal use of metal technologies. The development of tools during this time period revolutionized agriculture. This led to the displacement of the groups in the east and southeast. The 10th century marked the expansion of the Bantu in West-Central Africa. Rising populations soon made intricate local, regional and foreign commercial networks that traded mostly in salt, iron. Belgian exploration and administration took place from the 1870s until the 1920s and it was first led by Sir Henry Morton Stanley, who undertook his explorations under the sponsorship of King Leopold II of Belgium. The eastern regions of the precolonial Congo were heavily disrupted by constant slave raiding, mainly from Arab–Swahili slave traders such as the infamous Tippu Tip, Leopold had designs on what was to become the Congo as a colony. Leopold formally acquired rights to the Congo territory at the Conference of Berlin in 1885 and he named it the Congo Free State. Leopolds rėgime began various infrastructure projects, such as construction of the railway ran from the coast to the capital of Leopoldville. Nearly all such projects were aimed at making it easier to increase the assets which Leopold. In the Free State, colonists brutalized the local population into producing rubber, for which the spread of automobiles, rubber sales made a fortune for Leopold, who built several buildings in Brussels and Ostend to honor himself and his country
31.
Quebec
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Quebec is the second-most populous province of Canada and the only one to have a predominantly French-speaking population, with French as the sole provincial official language. Quebec is Canadas largest province by area and its second-largest administrative division and it also shares maritime borders with Nunavut, Prince Edward Island, and Nova Scotia. Quebec is Canadas second-most populous province, after Ontario, most inhabitants live in urban areas near the Saint Lawrence River between Montreal and Quebec City, the capital. Approximately half of Quebec residents live in the Greater Montreal Area, the Nord-du-Québec region, occupying the northern half of the province, is sparsely populated and inhabited primarily by Aboriginal peoples. Even in central Quebec at comparatively southerly latitudes winters are severe in inland areas, Quebec independence debates have played a large role in the politics of the province. Parti Québécois governments held referendums on sovereignty in 1980 and 1995, in 2006, the House of Commons of Canada passed a symbolic motion recognizing the Québécois as a nation within a united Canada. These many industries have all contributed to helping Quebec become an economically influential province within Canada, early variations in the spelling of the name included Québecq and Kébec. French explorer Samuel de Champlain chose the name Québec in 1608 for the colonial outpost he would use as the seat for the French colony of New France. The province is sometimes referred to as La belle province, the Province of Quebec was founded in the Royal Proclamation of 1763 after the Treaty of Paris formally transferred the French colony of Canada to Britain after the Seven Years War. The proclamation restricted the province to an area along the banks of the Saint Lawrence River, the Treaty of Versailles ceded territories south of the Great Lakes to the United States. After the Constitutional Act of 1791, the territory was divided between Lower Canada and Upper Canada, with each being granted an elected legislative assembly, in 1840, these become Canada East and Canada West after the British Parliament unified Upper and Lower Canada into the Province of Canada. This territory was redivided into the Provinces of Quebec and Ontario at Confederation in 1867, each became one of the first four provinces. In 1898, the Canadian Parliament passed the first Quebec Boundary Extension Act that expanded the provincial boundaries northward to include the lands of the aboriginal peoples. This was followed by the addition of the District of Ungava through the Quebec Boundaries Extension Act of 1912 that added the northernmost lands of the Inuit to create the modern Province of Quebec. In 1927, the border between Quebec and Newfoundland and Labrador was established by the British Judicial Committee of the Privy Council. Located in the part of Canada, and part of Central Canada. Its topography is very different from one region to another due to the composition of the ground, the climate. The Saint Lawrence Lowland and the Canadian Shield are the two main regions, and are radically different
32.
Cyperaceae
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The Cyperaceae are a family of monocotyledonous graminoid flowering plants known as sedges, which superficially resemble grasses and rushes. The family is large, with some 5,500 known species described in about 90 genera and these species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be growing in almost all environments, many are associated with wetlands. Ecological communities dominated by sedges are known as sedgelands, features distinguishing members of the sedge family from grasses or rushes are stems with triangular cross-sections and leaves that are spirally arranged in three ranks. Some well-known sedges include the chestnut and the papyrus sedge. This family also includes cotton-grass, spike-rush, sawgrass, nutsedge or nutgrass, and white star sedge
33.
Carnivorous plant
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Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs, charles Darwin wrote Insectivorous Plants, the first well-known treatise on carnivorous plants, in 1875. True carnivory is thought to have evolved independently nine times in five different orders of flowering plants and this classification includes at least 583 species that attract, trap and kill prey, absorbing the resulting available nutrients. Additionally, over 300 protocarnivorous plant species in several genera show some, five basic trapping mechanisms are found in carnivorous plants. Pitfall traps trap prey in a leaf that contains a pool of digestive enzymes or bacteria. Flypaper traps use a sticky mucilage, snap traps utilize rapid leaf movements. Bladder traps suck in prey with a bladder that generates an internal vacuum, lobster-pots, also known as eel traps, force prey to move towards a digestive organ with inward-pointing hairs. These traps may be active or passive, depending on whether movement aids the capture of prey, for example, Triphyophyllum is a passive flypaper that secretes mucilage, but whose leaves do not grow or move in response to prey capture. Meanwhile, sundews are active flypaper traps whose leaves undergo rapid acid growth, the rapid acid growth allows the sundew tentacles to bend, aiding in the retention and digestion of prey. The sundew species Drosera glanduligera employs a unique trapping mechanism with features of both flypaper and snap traps, this has been termed a catapult-flypaper trap, characterized by an internal chamber, pitfall traps are thought to have evolved independently at least six times. This particular adaptation is found within the families Sarraceniaceae, Nepenthaceae, Cephalotaceae, within the family Bromeliaceae, pitcher morphology and carnivory evolved twice. Because these families do not share an ancestor who also had pitfall trap morphology. A passive trap, pitfall traps attract prey with nectar bribes secreted by the peristome, the linings of most pitcher plants are covered in a loose coating of waxy flakes which are slippery for insects, causing them to fall into the pitcher. Once within the structure, digestive enzymes or mutualistic species break down the prey into an absorbable form for the plant. Water can become trapped within the pitcher, making a habitat for other flora and this type of water body is called a Phytotelma. The simplest pitcher plants are probably those of Heliamphora, the pitcher plant. In this genus, the traps are derived from a simple rolled leaf whose margins have sealed together. These plants live in areas of rainfall in South America such as Mount Roraima
34.
Drosera
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Drosera, commonly known as the sundews, is one of the largest genera of carnivorous plants, with at least 194 species. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginous glands covering their leaf surfaces, the insects are used to supplement the poor mineral nutrition of the soil in which the plants grow. Various species, which vary greatly in size and form, are native to every continent except Antarctica, both the botanical name and the English common name refer to the glistening drops of mucilage at the tip of each tentacle that resemble drops of morning dew. Sundews are perennial plants, forming prostrate or upright rosettes between 1 and 100 cm in height, depending on the species. Climbing species form scrambling stems which can reach much longer lengths, sundews have been shown to be able to achieve a lifespan of 50 years. The genus is so specialized for nutrient uptake through its carnivorous behavior, the genus can be divided into several habits, or growth forms, Temperate sundews, These species form a tight cluster of unfurled leaves called a hibernaculum in a winter dormancy period. All of the North American and European species belong to this group, Drosera arcturi from Australia and New Zealand is another temperate species that dies back to a horn-shaped hibernaculum. Subtropical sundews, These species maintain vegetative growth year-round under uniform or nearly uniform climatic conditions and these hairs serve to protect the plants from Australias intense summer sun. Pygmy sundews form the subgenus Bryastrum, tuberous sundews, These nearly 50 Australian species form an underground tuber to survive the extremely dry summers of their habitat, re-emerging in the autumn. These so-called tuberous sundews can be divided into two groups, those that form rosettes and those that form climbing or scrambling stems. Tuberous sundews comprise the subgenus Ergaleium, Petiolaris complex, A group of tropical Australian species, they live in constantly warm but sometimes wet conditions. Several of the 14 species that comprise this group have developed strategies to cope with the alternately drier conditions. Many species, for example, have petioles densely covered in trichomes, the Petiolaris complex comprises the subgenus Lasiocephala. Sundews are characterised by the tentacles, topped with sticky secretions. Small prey, mainly consisting of insects, are attracted by the secretions of the peduncular glands. Upon touching these, the prey become entrapped by sticky mucilage which prevents their progress or escape, eventually, the prey either succumb to death through exhaustion or through asphyxiation as the mucilage envelops them and clogs their spiracles. Death usually occurs within 15 minutes, the plant meanwhile secretes esterase, peroxidase, phosphatase and protease enzymes. These enzymes dissolve the insect and free the nutrients contained within it and this nutrient mixture is then absorbed through the leaf surfaces to be used by the rest of the plant
35.
Invertebrate
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Invertebrates are animals that neither possess nor develop a vertebral column, derived from the notochord. This includes all animals apart from the subphylum Vertebrata, familiar examples of invertebrates include insects, crabs, lobsters and their kin, snails, clams, octopuses and their kin, starfish, sea-urchins and their kin, jellyfish, and worms. The majority of species are invertebrates, one estimate puts the figure at 97%. Many invertebrate taxa have a number and variety of species than the entire subphylum of Vertebrata. Some of the invertebrates, such as the Tunicata and Cephalochordata are more closely related to the vertebrates than to other invertebrates. This makes the term invertebrate paraphyletic and hence almost meaningless for taxonomic purposes, the word invertebrate comes from the form of the Latin word vertebra, which means a joint in general, and sometimes specifically a joint from the spinal column of a vertebrate. In turn the jointed aspect of vertebra derived from the concept of turning, coupled with the prefix in-, meaning not or without. The term invertebrates is not always precise among non-biologists since it does not accurately describe a taxon in the way that Arthropoda. Each of these describes an valid taxon, phylum, subphylum or family. Invertebrata is a term of convenience, not a taxon, it has very little circumscriptional significance except within the Chordata, the Vertebrata as a subphylum comprises such a small proportion of the Metazoa that to speak of the kingdom Animalia in terms of Vertebrata and Invertebrata has limited practicality. That would at least circumscribe the Chordata, however, even the notochord would be a less fundamental criterion than aspects of embryological development and symmetry or perhaps bauplan. The following text reflects earlier scientific understanding of the term and of animals which have constituted it. According to this understanding, invertebrates do not possess a skeleton of bone and they include hugely varied body plans. Many have fluid-filled, hydrostatic skeletons, like jellyfish or worms, others have hard exoskeletons, outer shells like those of insects and crustaceans. The most familiar invertebrates include the Protozoa, Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Echinodermata, Mollusca, Arthropoda include insects, crustaceans and arachnids. By far the largest number of described species are insects. The following table lists the number of described extant species for major invertebrate groups as estimated in the IUCN Red List of Threatened Species,2014.3. The IUCN estimates that 66,178 extant vertebrate species have been described, the trait that is common to all invertebrates is the absence of a vertebral column, this creates a distinction between invertebrates and vertebrates
36.
Orchidaceae
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The Orchidaceae are a diverse and widespread family of flowering plants, with blooms that are often colourful and often fragrant, commonly known as the orchid family. Along with the Asteraceae, they are one of the two largest families of flowering plants, the Orchidaceae have about 28,000 currently accepted species, distributed in about 763 genera. The determination of which family is larger is still under debate, regardless, the number of orchid species nearly equals the number of bony fishes and is more than twice the number of bird species, and about four times the number of mammal species. The family also encompasses about 6–11% of all seed plants, the largest genera are Bulbophyllum, Epidendrum, Dendrobium and Pleurothallis. The family also includes Vanilla, Orchis, and many cultivated plants such as Phalaenopsis. Moreover, since the introduction of species into cultivation in the 19th century, horticulturists have produced more than 100,000 hybrids. Orchids are easily distinguished from plants, as they share some very evident, shared derived characteristics. Among these are, bilateral symmetry of the flower, many flowers, a nearly always highly modified petal, fused stamens and carpels. All orchids are perennial herbs that lack any permanent woody structure and they can grow according to two patterns, Monopodial, The stem grows from a single bud, leaves are added from the apex each year and the stem grows longer accordingly. The stem of orchids with a monopodial growth can reach several metres in length, as in Vanda, Sympodial, Sympodial orchids have a front and a back. The plant produces a series of adjacent shoots which grow to a size, bloom. Sympodial orchids grow laterally rather than vertically, following the surface of their support, the growth continues by development of new leads, with their own leaves and roots, sprouting from or next to those of the previous year, as in Cattleya. While a new lead is developing, the rhizome may start its growth again from a so-called eye, Sympodial orchids may have visible pseudobulbs joined by a rhizome, which creeps along the top or just beneath the soil. Terrestrial orchids may be rhizomatous or form corms or tubers, the root caps of terrestrial orchids are smooth and white. Some sympodial terrestrial orchids, such as Orchis and Ophrys, have two subterranean tuberous roots, one is used as a food reserve for wintry periods, and provides for the development of the other one, from which visible growth develops. In warm and constantly humid climates, many terrestrial orchids do not need pseudobulbs, epiphytic orchids, those that grow upon a support, have modified aerial roots that can sometimes be a few meters long. In the older parts of the roots, a modified spongy epidermis and it is made of dead cells and can have a silvery-grey, white or brown appearance. In some orchids, the velamen includes spongy and fibrous bodies near the passage cells, the cells of the root epidermis grow at a right angle to the axis of the root to allow them to get a firm grasp on their support
37.
Myrica gale
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Myrica gale is a species of flowering plant in the genus Myrica, native to northern and western Europe and parts of northern North America. Common names include Bog-myrtle and sweetgale and it is a deciduous shrub growing to 1–2 m tall. The leaves are arranged, simple, 2–5 cm long, oblanceolate with a tapered base and broader tip. The flowers are catkins, with male and female catkins on separate plants, the fruit is a small drupe. It typically grows in peat bogs, and to cope with these difficult nitrogen-poor growing conditions. The foliage has a resinous scent and is a traditional insect repellent. It is also a component of Royal Wedding bouquets and is used variously in perfumery. In modern times, some brewers have revisited this historic technique and in Denmark, in some native cultures in Eastern Canada, the plant has been used as a traditional remedy for stomach aches, fever, bronchial ailments and liver problems. The Creole Doctor, an 1886 article by Lafcadio Hearn, discusses the uses of the plant, known locally as cirier batard, in Louisiana creole folk remedies. In Scotland it has traditionally used to ward off the Highland midge. In 2007 there were plans to increase production of the plant in Scotland for use as an oil for treating sensitive skin. The plant has been listed as an abortifacient and therefore should not be consumed by women who are, or might be, sweetgale can grow in a narrow band in the intertidal zone, especially if logs have been washed into the estuary on which to establish itself. It is a food of beavers, and low beaver dams can be found in the intertidal zone if sufficient sweetgale is present. The ponds thus formed are often submerged at high tide. If too deep for predation by wading birds juvenile salmon may flourish
38.
Root nodule
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Root nodules occur on the roots of plants that associate with symbiotic nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a relationship with a host-specific strain of bacteria known as rhizobia. This process has evolved multiple times within the Fabaceae, as well as in species found within the Rosid clade. The Fabaceae include legume crops such as beans and peas and their ability to fix gaseous nitrogen makes legumes an ideal agricultural organism as their requirement for nitrogen fertilizer is reduced. Indeed high nitrogen content blocks nodule development as there is no benefit for the plant of forming the symbiosis, the energy for splitting the nitrogen gas in the nodule comes from sugar that is translocated from the leaf. Malate as a product of sucrose is the direct carbon source for the bacteroid. Nitrogen fixation in the nodule is very oxygen sensitive, Legume nodules harbor an iron containing protein called leghaemoglobin, closely related to animal myoglobin, to facilitate the conversion of nitrogen gas to ammonia. Plants that contribute to nitrogen fixation include the legume family – Fabaceae – with taxa such as kudzu, clovers, soybeans, alfalfa, lupines, peanuts, and rooibos. They contain symbiotic bacteria called rhizobia within the nodules, producing compounds that help the plant to grow. When the plant dies, the nitrogen is released, making it available to other plants. The great majority of legumes have this association, but a few genera do not, Inga alley farming relies on the leguminous genus Inga, a small tropical, tough-leaved, nitrogen-fixing tree. These plants belong to 25 genera distributed among 8 plant families, the ability to fix nitrogen is far from universally present in these families. For instance, of 122 genera in the Rosaceae, only 4 genera are capable of fixing nitrogen, all these families belong to the orders Cucurbitales, Fagales, and Rosales, which together with the Fabales form a clade of eurosids. Determinate nodules are found on certain tribes of tropical legume such as those of the genera Glycine, Phaseolus and these determinate nodules lose meristematic activity shortly after initiation, thus growth is due to cell expansion resulting in mature nodules which are spherical in shape. Another types of determinate nodule is found in a range of herbs, shrubs and trees. These are always associated with the axils of lateral or adventitious roots and are formed following infection via cracks where these roots emerge and their internal structure is quite different from those of the soybean type of nodule. Indeterminate nodules are found in the majority of legumes from all three sub-families, whether in temperate regions or in the tropics and this results in the nodule having a generally cylindrical shape, which may be extensively branched. Because they are growing, indeterminate nodules manifest zones which demarcate different stages of development/symbiosis
39.
Nitrogen fixation
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Nitrogen fixation is a process by which nitrogen in the Earths atmosphere is converted into ammonia or other molecules available to living organisms. Atmospheric nitrogen or molecular dinitrogen is relatively inert, it does not easily react with chemicals to form new compounds. The fixation process frees nitrogen atoms from their triply bonded diatomic form, N≡N, therefore, as part of the nitrogen cycle, it is essential for agriculture and the manufacture of fertilizer. It is also, indirectly, relevant to the manufacture of all compounds that contain nitrogen. Nitrogen fixation occurs naturally in the soil by nitrogen fixing bacteria, some nitrogen-fixing bacteria have very close relationships with plants, referred to as symbiotic nitrogen fixation. Looser relationships between nitrogen-fixing bacteria and plants are referred to as associative or non-symbiotic, as seen in nitrogen fixation occurring on rice roots. It also occurs naturally in the air by means of lightning, all biological nitrogen fixation is done by way of metalloenzymes called nitrogenases. These enzymes contain iron, often with a metal, usually molybdenum. Microorganisms that can fix nitrogen are prokaryotes called diazotrophs, some higher plants, and some animals, have formed associations with diazotrophs. Nitrogen can be fixed by lightning converting nitrogen and oxygen into NOx, NOx may react with water to make nitric acid, which may end up in the soil, where it makes nitrate, which is of use to growing plants. Biological nitrogen fixation was discovered by the German agronomist Hermann Hellriegel, biological nitrogen fixation occurs when atmospheric nitrogen is converted to ammonia by an enzyme called a nitrogenase. The overall reaction for BNF is, N2 +8 H+ +8 e− →2 NH3 + H2 The process is coupled to the hydrolysis of 16 equivalents of ATP and is accompanied by the co-formation of one molecule of H2. The conversion of N2 into ammonia occurs at a cluster called FeMoco, the mechanism proceeds via a series of protonation and reduction steps wherein the FeMoco active site hydrogenates the N2 substrate. In free-living diazotrophs, the ammonium is assimilated into glutamate through the glutamine synthetase/glutamate synthase pathway. The microbial genes required for nitrogen fixation are widely distributed in diverse environments, enzymes responsible for nitrogenase action are very susceptible to destruction by oxygen. For this reason, many bacteria cease production of the enzyme in the presence of oxygen, many nitrogen-fixing organisms exist only in anaerobic conditions, respiring to draw down oxygen levels, or binding the oxygen with a protein such as leghemoglobin. Diazotrophs are a group of prokaryotes that includes cyanobacteria, green sulfur bacteria, along with Azotobacteraceae. Cyanobacteria inhabit nearly all illuminated environments on Earth and play key roles in the carbon, in general, cyanobacteria are able to utilize a variety of inorganic and organic sources of combined nitrogen, like nitrate, nitrite, ammonium, urea, or some amino acids
40.
Labrador tea
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Labrador tea is a common name for the three closely related plant species and the name of an herbal tea made from the plants, All three species are primarily wetland plants in the heath family. The herbal tea has been a favorite beverage among Athabaskan and Inuit people, All three species used to make Labrador tea are low, slow-growing shrubs with evergreen leaves, Rhododendron tomentosum, Rhododendron groenlandicum, and Rhododendron neoglandulosum. The leaves are smooth on top with often wrinkled edges, R. tomentosum, R. groenlandicum, and R. neoglandulosum can be found in wetlands and peat bogs. The Athabaskans brew the leaves as a beverage, others use Labrador tea to spice meat by boiling the leaves and branches in water and then soaking the meat in the decoction. The Pomo, Kashaya, Tolowa and Yurok of Northern California boiled the leaves of Western Labrador Tea similarly, during the 18th century, German brewers used R. tomentosum while brewing beer to make it more intoxicating, but became forbidden because it led to increased aggression. There is no sufficient data that demonstrates Labrador tea is safe to consume as toxicity varies across species and localities, excessive consumption is not recommended due to diuresis, vomiting, dizziness, and drowsiness. Large doses can lead to cramps, convulsions, paralysis, and, in rare cases, toxicity occurs due to terpenoid ledol found in all Labrador tea species. R. groenlandicum has the lowest toxicity due to levels of ledol. Grayanotoxins are also present, but few lethal human cases of poisoning due to grayanotoxins in Labrador tea have been documented, however, lethal poisonings have been documented in livestock. Labrador tea is slow growing, so new single leaves are collected in spring from multiple plants to avoid damaging individual plants every other year
41.
Reindeer
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This includes both sedentary and migratory populations. While overall widespread and numerous, some of its subspecies are rare, for this reason, it is considered to be vulnerable by the IUCN. Reindeer vary considerably in colour and size, both sexes can grow antlers annually, although the proportion of females that grow antlers varies greatly between population and season. Antlers are typically larger on males, hunting of wild reindeer and herding of semi-domesticated reindeer are important to several Arctic and Subarctic peoples. In traditional festive legend, Santa Clauss reindeer pull a sleigh through the sky to help Santa Claus deliver gifts to children on Christmas Eve. The name Rangifer, which Carl Linnaeus chose for the genus, was used by Albertus Magnus in his De animalibus. This word may go back to a Saami word raingo, for the origin of the word tarandus, which Linnaeus chose as the specific epithet, he made reference to Ulisse Aldrovandis Quadrupedum omnium bisulcorum historia fol. However, Aldrovandi – and before him Konrad Gesner – thought that rangifer, in any case, the tarandos name goes back to Aristotle and Theophrastus – see In history below. Because of its importance to many cultures, Rangifer tarandus and some of its subspecies have names in many languages, the name rein is of Norse origin. The Finnish name poro may also stem from the same, the word deer was originally broader in meaning, but became more specific over time. In Middle English, der meant a wild animal of any kind. Cognates of Old English dēor in other dead Germanic languages have the sense of animal, such as Old High German tior, Old Norse djúr or dýr, Gothic dius, Old Saxon dier. The name caribou comes, through French, from Mikmaq qalipu, meaning snow shoveler, in Inuktitut, spoken in eastern Arctic North America, the caribou is known by the name tuktu. In the western North American Arctic, the used by the Iñupiat is tuttu. Across the range of a species, individuals may display considerable morphological, genetic, COSEWIC developed Designated Unit attribution to add to classifications already in use. The species taxonomic name Rangifer tarandus was defined by Carl Linnaeus in 1758, the subspecies taxonomic name, Rangifer tarandus caribou was defined by Gmelin in 1788. Based on Banfields often-cited A Revision of the Reindeer and Caribou, Genus Rangifer, R. t. caboti, R. t. osborni and R. t. terraenovae were considered invalid and included in R. t. caribou. Some recent authorities have considered them all valid, even suggesting that they are quite distinct and he affirms that true woodland caribou is very rare, in very great difficulties and requires the most urgent of attention
42.
Moose
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The moose or elk, Alces alces, is the largest extant species in the deer family. Moose are distinguished by the broad, flat antlers of the males, Moose typically inhabit boreal forests and temperate broadleaf and mixed forests of the Northern Hemisphere in temperate to subarctic climates. Hunting and other activities have caused a reduction in the size of the mooses range over time. Moose have been reintroduced to some of their former habitats, currently, most moose are found in Canada, Alaska, New England, Fennoscandia, Latvia, Estonia and Russia. Their diet consists of terrestrial and aquatic vegetation. The most common predators are the gray wolf along with bears. Unlike most other species, moose are solitary animals and do not form herds. Although generally slow-moving and sedentary, moose can become aggressive and move quickly if angered or startled and their mating season in the autumn features energetic fights between males competing for a female. Alces alces is called a moose in North American English, and that same word elk in North American English refers to a completely different species of deer, the Cervus canadensis, also called the wapiti. A mature male moose is called a bull, a female a cow. The word elk originated from Proto-Germanic languages, from which Old English evolved, the British English word elk has cognates in other Indo-European languages, for example elg in Danish/Norwegian, älg in Swedish, alnis in Latvian, Elch in German, and łoś in Polish. In the continental-European languages, these forms of the word elk almost always refer to the Alces alces, the word moose first entered English by 1606 and is borrowed from the Algonquian languages, and possibly involved forms from multiple languages mutually reinforcing one another. The term moose is a name of North American origin, the animal is known in British English as the elk. The moose became extinct in Britain during the Bronze Age, long before the Europeans discovery of America, the youngest bones were found in Scotland and are roughly 3900 years old. Dictionaries of the 18th century simply described elk as a deer that was as large as a horse, confusingly, the word elk is used in North America to refer to a different animal, Cervus canadensis, which is also called by the Algonkian indigenous name, wapiti. The British began colonizing America in the 17th century, and found two common species of deer for which they had no names, the wapiti appeared very similar to the red deer of Europe although it was much larger and was not red. The moose was a rather strange-looking deer to the colonists, the wapiti is very similar to the red deer of central and western Europe, although it is distinctly different behaviorally and genetically. Early European explorers in North America, particularly in Virginia where there were no moose, called the wapiti elk because of its size, the moose resembled the German elk, which was less familiar to the British colonists
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"Bog". Encyclopædia Britannica (11th ed.). 1911.
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