Ecosystem
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An ecosystem is a system formed by organisms in interaction with their environment, where the biotic and abiotic components are linked together through nutrient cycles and energy flows.
Flora of Baja California desert, Cataviña region, Mexico
Global oceanic and terrestrial phototroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary production potential and not an actual estimate of it.
A freshwater lake in Gran Canaria, an island of the Canary Islands. Clear boundaries make lakes convenient to study using an ecosystem approach.
Biological nitrogen cycling
Coral reef
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A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony co
Ecosystem
…Left: Coral reef ecosystems are highly productive marine systems. Right: Temperate rainforest, a terrestrial ecosystem. An ecosystem (or ecological system) is a system…
Brain coral spawning
Biodiversity in a coral reef
Ancient coral reefs
Fringing reef at Eilat at the southern tip of Israel