"Impacts of climate change on pack ice-associated arctic marine mammals," Laidre

Start Date/Time: Thursday, December 08, 2011, 4:00 PM
Ending Date/Time: Thursday, December 08, 2011, 5:00 PM
Location: 102 Fishery Sciences (Auditorium), 1122 NE Boat St

***Aquatic & Fishery Sciences Fall Seminar Series***

Speaker: Kristin Laidre, Research Scientist, UW Applied Physics Laboratory, Polar Science Center, and Aquatic & Fishery Sciences

Title: Impacts of Climate Change on Pack Ice-Associated Arctic Marine Mammals

During the last several decades large-scale environmental changes have occurred in the Arctic, particularly in the seasonal pack ice of Baffin Bay, including a marked annual decline in sea ice extent (-9 to 11% per decade since 1979), earlier sea ice break-up date (3-4 weeks since 1979), and warming ocean temperatures. Several top marine predators are specially adapted to exploit the habitat both above and below the pack ice during critical winter and spring foraging periods. I will discuss the ecology of marine mammals in the pack ice, with a focus on narwhals (Monodon monoceros) and polar bears (Ursus maritimus), and present results from recent studies on movements, population dynamics, body condition, and habitat quality which demonstrate how these species are being impacted by climate change.

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