The Bears of Summer is back--that's John Whiteman's contribution to a collection of polar research dispatches called Ice Stories maintained by the San Francisco Exploratorium. Whiteman, a PhD student in the University of Wyoming's Program in Ecology, has returned to Kaktovik on Alaska's north coast for early spring fieldwork. He's part of Hank Harlow's polar bear physiology study, an NSF-funded research project that aims to understand to what extent warmer summer temps--and attendant changes in sea-ice coverage--may impact polar bears who use the ice as a hunting platform. The Harlow team has been capturing, examining, tagging and releasing bears early and late in the growing season since 2008 to find out if they are successfully feeding during the summer, and if not, how they may be using their own body's resources (mainly fat) for sustenance.
In his latest post, Whiteman writes about examining a gigantic male, the largest bear he's ever handled. He also comments on the number of COYs he's seeing--"COYs" being cubs born around January. The above three are taking a snooze on their bear mama while waiting for a short-lasting dose of anesthesia to wear off.
So far, the team has had some success in recapturing bears tagged last year and in capturing new ones as well; this is particularly good news given that last fall's capture and study period was hampered by poor ice conditions that prevented the researchers from safely reaching the bears.