Bioindicator
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A bioindicator is any species or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example
Caddisfly (order Trichoptera), a macroinvertebrate used as an indicator of water quality.
The lichen Lobaria pulmonaria is sensitive to air pollution.
Populations of American crows (Corvus brachyrhynchos) are especially susceptible to the West Nile Virus, and can be used as a bioindicator species for the disease's presence in an area.
Aquatic biomonitoring
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Aquatic biomonitoring is the science of inferring the ecological condition of rivers, lakes, streams, and wetlands by examining the organisms that live there. While aquatic biomonitoring is the most c
A biosurvey on the North Toe River. North Carolina
A scientist returning from a sampling expedition at an oil spill site on Bodo Creek in the Niger River Delta
Caddis fly spp. larvae are a common indicator organism
Population and species surveying using electrofishing equipment