A Little Less Arctic: Top Predators in the World's Largest Northern Inland Sea, Hudson BaySteven H. Ferguson, Lisa L. Loseto, Mark L. Mallory In Arctic Canada, Hudson Bay is a site of great exploration history, aboriginal culture, and a vast marine wilderness supporting large populations of marine mammals and birds. These include some of the most iconic Arctic animals like beluga, narwhal, bowhead whales, and polar bears. Due to the challenges of conducting field research in this region, some of the mysteries of where these animals move, and how they are able to survive in such seemingly inhospitable, ice-choked habitats are just now being unlocked. For example, are polar bears being replaced by killer whales? This new information could not be more salient, as the Hudson Bay Region is undergoing rapid environmental change due to global warming, as well as increased pressures from industrial development interests. A Little Less Arctic brings together some of the world’s leading Arctic scientists to present the current state of knowledge on the physical and biological characteristics of Hudson Bay. |
Contents
| 1 | |
Changing Sea Ice Conditions in Hudson Bay 19802005 K Hochheim D G Barber and J V Lukovich | 39 |
Unique Dietary Habits | 52 |
Migration Route and Seasonal Home Range of the Northern | 71 |
Polar Bear Ecology and Management in Hudson | 92 |
The Rise of Killer Whales as a Major Arctic Predator S H Ferguson J W Higdon and E G Chmelnitsky | 117 |
Ecology in a Warming Climate | 137 |
Past Present and Future for Bowhead Whales | 159 |
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Common terms and phrases
abundance Arctic cod Arctic marine areas Arviat Baffin Balaena mysticetus biomass birds bowhead whales break-up breeding capelin climate change coastal common eiders COSEWIC Derocher diet distribution Environment environmental estimates fatty acids feeding fish Fisheries and Oceans Foxe Basin freeze-up freshwater Gaston gene flow genetic structure GHBE Gilchrist Gough Greenland habitat harvest HB complex Heide-Jørgensen Higdon and Ferguson home range Hudson Bay region Hudson Strait hunting ice algae ice cover impacts increased Inuit James Bay killer whales Laidre Loseto Lunn Mallory Manitoba marine mammals migration narwhal North northern Hudson Bay Northwest numbers Nunavut observed open water Orcinus orca Phoca hispida polar bears polynyas population prey Prinsenberg Repulse Bay ringed seals Sanikiluaq Science sea ice sea ice concentration seals Phoca season species Stewart and Lockhart Stirling summer TEK/LEK thick-billed murres Top Predators traditional ecological knowledge trends trophic Ursus maritimus walrus western Hudson Bay Wildlife Winnipeg winter zooplankton