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Seasonal habitat selection of cougars Puma concolor by sex and reproductive state in west-central Alberta, Canada

机译:Courgars Puma Con Concolor在加拿大西部艾伯塔省西部 - 中市中心和生殖国家的季节性栖息地选择

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Resource selection studies are commonly used to assess the landscape features that animals select or avoid in their environment. Selection for certain landscape features and landcover types may vary by sex and reproductive status of an individual, and habitat selection studies should incorporate these factors. Cougars Puma concolor are a wide-ranging species that live in a diversity of habitats with varying levels of human disturbance. Geographic positioning satellite telemetry collars were deployed on 55 males, single females and females with kittens. We used a two-stage resource selection function to assess the seasonal habitat characteristics used by adult cougars in west-central, Alberta, Canada, near the northern extent of the species range, from 2016 to 2018. A latent selection difference function was used to compare differences in habitat selction between groups. All groups selected for similar habitat types including edge habitat, close proximity to water, sloped terrain, forested habitat and avoided roads. During the summer, close proximity to water and wetland land cover were among the most selected features for all groups. Forest and edge habitats also were important for single females and males. During the winter, forested habitat was one of the most important covariates for all groups along with close proximity to water, edge habitat and slope for single females and males. Selection for slope and avoidance of open agricultural land were among the most important for females with kittens. Our results provide insights into those landscape variables that are important for cougars at the northern extent of their geographical range.
机译:资源选择研究通常用于评估动物在环境中选择或避免的景观特征。对于某些景观特征和土地层类型的选择可能因个人而异的性和生殖状态而变化,并且栖息地选择研究应包含这些因素。 Cougars Puma Condolor是一种广泛的物种,生活在各种各样的栖息地,具有不同程度的人类干扰。地理定位卫星遥测项圈部署在55个男性,单身女性和雌性与小猫。我们使用了两阶段资源选择功能来评估成人Cougars在加拿大艾伯塔省西部的成人美洲狮使用的季节性栖息地特征,靠近物种范围的北部范围,从2016年至2018年。潜在选择差异函数用于比较群体之间的栖息地齐全的差异。所有团体选择适用于类似的栖息地类型,包括边缘栖息地,靠近水,倾斜地形,森林栖息地和避免道路。夏季,靠近水和湿地陆地覆盖是所有群体的最均选定的特征。森林和边缘栖息地对单身女性和男性来说也很重要。在冬季,森林栖息地是所有群体最重要的协变者之一,而且靠近水,边缘栖息地和单一女性和男性的坡度。对开放农业土地的坡度和避免的选择是与小猫的女性最重要的。我们的结果提供了对这些景观变量的见解,这些景观变量对于在其地理范围的北部范围内对美洲狮很重要。

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