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Organism groupings (non-taxonomic)
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Keystone species
Species whose abundance and ecological role has a dramatic effect on the other species in an ecosystem.
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Sea otter research at Western Ecological Research Center (WERC)
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Webpage on research on sea otters (Euhydra lutris) in the nearshore environment of the eastern Pacific Ocean with information on status of otters on the coast of Alaska, Washington, and California and link to fact sheet in PDF format.
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