Tag: stable isotopes

May 10, 2019

Golden eagle feathers reveal decades of island prey

An eagle feather may be light in weight, but it can pack enough isotopic data to reveal the changing patterns of prey availability across a landscape. Researchers used stable isotopes...

July 7, 2017

JWM study: Bait is major food source for northern Wisconsin bears

Bear baiting is a popular hunting technique in Wisconsin, where hunters leave out troves of stale cookies, donuts and candy in hollowed-out logs to habituate black bears (Ursus americanus) in...

May 11, 2016

Are polar bears changing their diet?

Deep in the Western Hudson Bay, populations of bearded seals are declining. As polar bears prey on these seals, researchers wonder how similar changes in prey availability could potentially affect...