Over more than a century, seabirds have changed prey
Seabirds in Hawaii have changed their prey preference over the last 125 years, according to new research, suggesting that more birds are consuming squid rather than ...
stable isotope analysis
Bobolinks reliance on rice raises new concerns
Bobolinks (Dolichonyx oryzivorus) travel 12,000 miles each year to their North American breeding areas, where they have experienced habitat loss and degradation for ...
Hairs show grizzlies prefer declining tree species
A changing environment in the Greater Yellowstone Ecosystem, including a decrease in whitebark pine trees, might be causing some trouble for grizzly bears (Ursus ...
Where do the bats killed by turbines come from?
Genetic and isotope detective work is revealing the mysteries of where some of the bat species most often killed by wind turbines come from. “These are an ...