Habitat selection of terrestrial mammals across scales

跨尺度陆生哺乳动物的栖息地选择

• 批准号: 217171-2009
• 负责人: Schaefer, James
• 金额: $ 1.75万
• 依托单位: Trent University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=523707
• 关键词: Habitat; selection; terrestrial; mammals; across

Habitat selection may be the most studied feature of animal ecology; it also represents information crucial to the recovery of species declining due to habitat loss. Conclusions about habitat selection, however, are often sensitive to the scale -- the extent or resolution of our observations in space and time. Scale represents an impediment to drawing general conclusions across different study areas, populations, or species. This research will combine modelling and field studies of the habitat selection of northern mammals with two broad goals: (1) to develop and test a new "geostatistical model", a tool for revealing the scales at which animals respond to their environment and (2) to determine the habitat factors that affect imperiled caribou populations. Deleterious changes to caribou habitat are hypothesized to be caused by logging in the boreal forest (for threatened woodland caribou) and severe snow conditions in the High Arctic (for endangered Peary caribou).

栖息地选择可能是动物生态学研究最多的特征;它也代表了由于栖息地丧失而减少的物种恢复的关键信息。 然而，关于栖息地选择的结论往往对尺度敏感-我们在空间和时间上观察的范围或分辨率。 规模代表了在不同的研究领域，种群或物种之间得出一般结论的障碍。 这项研究将结合联合收割机模型和实地研究的栖息地选择的北方哺乳动物有两个广泛的目标：（1）开发和测试一个新的“地质统计模型”，一个工具，揭示规模的动物对环境的反应和（2）确定栖息地的因素，影响濒危驯鹿种群。 驯鹿栖息地的破坏性变化被假设是由北方森林的伐木（对受威胁的林地驯鹿）和北极高纬度地区的严重降雪条件（对濒危的皮里驯鹿）造成的。