Impacts of climate change on polar bears/grizzly bears /wolves Paul Buzzard, PhD Field Conservation Officer Polar Bears/GrizzlyMammals Bears at Kaktovik, AK Figure 1. Proposed area to study the degree of sympatry and potential for competition between polar and grizzly bears within the Arctic National Wildlife Refuge (brown area), North Slope of Alaska, 2015-18. Bone pile video Bone pile video Kaktovik, AK and Barter Island Polar Bear Numbers at Barter Island, September 7-26, 2002-2014 90 80 80 70 65 61 61 60 51 50 41 Minimum 40 36 37 35 Maximum Average 32 29 30 30 23 25 24 22 20 18 18 18 14 12 10 11 6 3 4 0 0 2002 2004 2006 2008 2010 2012 2014 Other prey switchingMammalsby Polar Bears Musk ox, walrus, geese eggs (88 eggs equals a seal), etc. Grizzly bear at Kaktovik bone pile Pizzlies / GrolarMammals Hybrid Bears 3 confirmed cases, many suspected; normally male grizzly and female polar; in one case father grizzly mother was grizzly-polar hybrid Wolves at IsleMammals Royale 2015: Opening of the Cotton Family Wolf habitat, support for the wolf-moose project Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves and MooseMammals at Isle Royale Wolf Reintroductions: 1952, 2018? Wolves and MooseMammals at Isle Royale DZS staff at Isle Royale May 2016/2017 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose. Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves and mooseMammals at Isle Royale Wolves Mammals DZS staff travelled to Isle Royale May 16-23 to meet with Profs. Peterson and Vucetich; look for wolf sign; and monitor moose on the island. Currently 2 wolves remain, and National Park Service will decide in Fall 2017 whether to reintroduce wolves. Wolves and MooseMammals at Isle Royale Wolf Reintroductions: National Park Service to decide late 2017 Mammals Thank you! Thank you! DZS at Isle RoyaleMammals.