Sentences with phrase «bears on bird populations»

Climate change and the increasing impact of polar bears on bird populations.

Not exact matches

Research Assistant, Institute of Ecosystem Studies, NY (May 00 — Aug 00) The interactions of tree regeneration, rodent and bird populations, and tick density and their effect on the risk of human exposure to vector - borne disease.
Canada's Boreal Forest is also the reservoir for a large fraction of North America's clean, fresh water, home to about 5 billion migratory birds, and some of the largest remaining populations of caribou, moose, bear and wolves on the planet.
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