Declines in Arctic sea ice associated with climate change have resulted in habitat loss for ice-adapted species, while facilitating increased human development at higher latitudes. Development increases land-use and shipping traffic, which can threaten ecologically and culturally important species. Female polar bears ( Ursus maritimus ) and cubs are susceptible to disturbance during denning; a better understanding of denning habitat distribution may aid management. We compiled existing location data on polar bear denning ( n = 64 sources) in Canada between 1967 and 2018, including traditional ecological knowledge (TEK) studies, government and consultant reports, peer-reviewed scientific articles, and unpublished data acquired through data-sharing agreements. We synthesized these data to create a map of known denning locations. Most coastal regions in northern Canada supported denning, but large areas exist where denning is unreported. Gaps remain in the knowledge of polar bear denning in Canada and filling these will aid the conservation and management of polar bears in a changing Arctic.

中文翻译：

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加拿大北极地区的北极熊栖息地分布

与气候变化相关的北极海冰减少导致适应冰的物种的栖息地丧失，同时促进了高纬度地区的人类发展。开发增加了土地使用和航运，这可能威胁到具有重要生态和文化意义的物种。雌性北极熊（ Ursus maritimus ）和幼崽在筑巢期间容易受到干扰；更好地了解栖息地分布可能有助于管理。我们汇编了 1967 年至 2018 年间加拿大北极熊栖息地的现有位置数据（n = 64 个来源），包括传统生态知识 (TEK) 研究、政府和顾问报告、同行评审的科学文章以及通过数据共享获得的未发表数据协议。我们合成了这些数据以创建已知的巢穴位置地图。加拿大北部的大多数沿海地区都支持登革，但也有大片地区没有报告登革。对加拿大北极熊栖息地的了解仍存在空白，填补这些空白将有助于在不断变化的北极地区保护和管理北极熊。