{"id":3629,"date":"2017-03-21T13:26:00","date_gmt":"2017-03-21T13:26:00","guid":{"rendered":"https:\/\/seapop.no\/?p=3629"},"modified":"2021-02-26T12:23:28","modified_gmt":"2021-02-26T11:23:28","slug":"life-on-the-edge-the-ivory-gull-an-endangered-specialist-in-the-sea-ice","status":"publish","type":"post","link":"https:\/\/seapop.no\/en\/2017\/03\/life-on-the-edge-the-ivory-gull-an-endangered-specialist-in-the-sea-ice\/","title":{"rendered":"Life on the edge: The ivory gull \u2013 an endangered specialist in the sea-ice"},"content":{"rendered":"\n

In recent decades, Arctic sea ice has decreased dramatically in extent and thickness, and many arctic species \u2013 including the ivory gull \u2013 are threatened by these changes. The ivory gull, being one of few ice-dependent seabirds, is endangered and red listed in all countries where it breeds.<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\n\n\n\n

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An understanding of how ice-edges and ice concentration influence the distribution of the ivory gulls is a prerequisite to the implementation of adequate conservation strategies for the species. From 2007 to 2013, the movements of 104 ivory gulls caught in Canada, Greenland, Svalbard-Norway and Russia, were monitored using satellite transmitters.<\/p>\n\n\n\n

Seventy five percent of the ivory gulls\u2019 recorded positions are within 100 km of the ice-edge. The distribution relative to sea ice concentration varied through the year. From May to September, 80 % of the positions were on relatively highly concentrated sea ice. During migration and winter season, the frequency dropped to less than 50 %. The best model to explain the distance of the birds from the ice-edge included the ice concentration within approximately 10 km, the month and the distance to the breeding colony.<\/p>\n\n\n\n

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