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Project Description

The Pacific walrus (PW) is a candidate for listing under the Endangered Species Act due to reductions in sea ice habitat resulting from climate change. Summer sea ice is recognized as a potentially critical habitat that PW rely upon for resting, foraging, and reproductive activities. PW rely on both land and sea-ice as haulout substrate. Male PW are commonly found on summer terrestrial haulouts, while females and calves primarily rely on sea-ice because it offers protection from predators and provides access to foraging areas. During 2007, female PW with young calves made a notable move to utilize Alaskan terrestrial haulouts, coinciding with low summer ice. In 2008, increased summer ice cover was available so PW remained offshore, however they again made landfall in 2009, coincident with low summer ice extent. As summer sea-ice continues