11/15/12 - 4:35pm
ANCHORAGE, Alaska — The absence of vast swaths of summer sea ice is changing the behavior of Pacific walrus, federal scientists said Wednesday, but added that more research will be needed to say what the final effects might be.
“There is a definite concern for the population,” said Chad Jay, a U.S. Geological Survey research ecologist who studies patterns of walrus distribution.
Since 2008, Jay, USGS researcher Anthony Fischbach and colleagues in Russia have used crossbows to attach temporary radio collars to walrus so their movements can be tracked.