Habitat loss is the greatest contributor to the decline of species globally. To prioritize protection of imperiled species, it is important to examine habitat use at multiple spatial scales because the availability of different resources and habitat features is scale dependent. We conducted a radio-telemetry study in the Long Point region of Ontario, Canada, in 2009 and 2010 to examine habitat selection at multiple spatial scales by eastern hog-nosed snakes (Heterodon platirhinos), a species at risk in Canada. We documented the habitat composition of home ranges compared to the surrounding landscape, the selection of locations within home ranges based on classified satellite imagery, and the use of microhabitat features based on site characterization in the field. At the scale of the home ranges, hog-nosed snakes avoided areas of agriculture and selected sand barrens. Within home ranges, hog-nosed snakes selectively used areas altered by humans (e.g., residential sites, openings in tree plantations). Microhabitats used by hog-nosed snakes had more woody debris, logs, and lower vegetative coverage than adjoining random sites. Because hog-nosed snakes prefer open areas and require sandy soils for nesting, management efforts should focus on the conservation and maintenance of sand barrens and patches of early successional forest. © 2021 The Wildlife Society.

中文翻译：

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加拿大安大略省多空间尺度的东部猪鼻蛇栖息地选择

栖息地丧失是全球物种减少的最大原因。为了优先保护濒危物种，重要的是在多个空间尺度上检查栖息地的使用，因为不同资源和栖息地特征的可用性取决于规模。我们于 2009 年和 2010 年在加拿大安大略省的 Long Point 地区进行了一项无线电遥测研究，以检查东部猪鼻蛇 ( Heterodon platirhinos)在多个空间尺度上的栖息地选择)，一种在加拿大面临风险的物种。我们记录了家庭范围与周围景观相比的栖息地组成，根据分类卫星图像选择家庭范围内的位置，以及基于现场场地特征的微栖息地特征的使用。在家庭范围内，猪鼻蛇避开农业区和选定的沙地。在家庭范围内，猪鼻蛇有选择地使用人类改变的区域（例如，住宅区、树木种植园的开口）。与相邻的随机地点相比，猪鼻蛇使用的微型栖息地具有更多的木质碎片、原木和较低的植被覆盖率。因为猪鼻蛇喜欢开阔的地方，需要沙土筑巢，管理工作应侧重于沙地贫瘠和早期演替森林斑块的保护和维护。© 2021 野生动物协会。