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首页> 外文期刊>Southeastern naturalist >Eastern Fox Squirrel (Sciurus niger) Occupancy in Fragmented Montane Longleaf Pine Forests
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Eastern Fox Squirrel (Sciurus niger) Occupancy in Fragmented Montane Longleaf Pine Forests

机译：东部狐狸松鼠（Sciurus尼日尔）在碎片的蒙太糖果龙腰林森林中入住

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摘要

Sciurus niger L. (Eastern Fox Squirrel) is associated with montane Pinus palustris Mill. (Longleaf Pine) forests in the Piedmont and Ridge and Valley, but little is known about the species' distribution and abundance within this region. We conducted an occupancy study of Eastern Fox Squirrels in montane Longleaf Pine forests of the Talladega National Forest, AL. We surveyed 73 camera trap sites for Eastern Fox Squirrels and measured surrounding vegetation and landscape features. Eastern Fox Squirrels were patchily distributed across the study area and only observed at 11% of sites. Occupancy modeling indicated Eastern Fox Squirrels had a relatively high probability of detection (0.680) but a low probability of occupancy (0.111). Eastern Fox Squirrel occupancy was negatively associated with slope steepness. This result is possibly because prescribed fire and other restoration efforts of open-pine conditions associated with Eastern Fox Squirrel habitat in Talladega National Forest are focused on logistically accessible ridges and more moderately sloped areas. Steep slopes also likely decrease accessibility and dispersion ability for Eastern Fox Squirrels. The overall low occupancy of Eastern Fox Squirrels in the Shoal Creek Ranger District of Talladega National Forest may be linked to the highly fragmented montane Longleaf Pine habitat caused by topography and past fire suppression.
机译：Sciurus尼日尔L.（东福克斯灰鼠）与Montane Pinus Palustris Mill相关联。 （Longleaf Pine）山脉和山脊和山谷的森林，但对该地区的物种分销和丰富几乎不了解。我们在塔拉德加国家森林，al的Montane Longleaf Pine森林中进行了对东狐狸松鼠的入住研究。我们调查了73个摄像机陷阱位点，用于东部福克斯松鼠，并测量周围的植被和景观特征。东部福克斯松鼠在研究区分发了普剧分布，只观察到11％的网站。占用建模表明东部福克斯灰鼠的检测概率相对较高（0.680），但占用概率低（0.111）。东部福克斯松鼠占用与坡度陡峭呈负相关。这一结果可能是因为与塔拉迪加国家森林中的东部狐狸松鼠栖息地相关的开放式消防和其他恢复努力集中在逻辑上可访问的山脊和更适中的区域。陡坡也可能降低东福克斯松鼠的可访问性和分散能力。塔拉德加国家森林浅滩溪村东部福克斯松鼠的总体低占用可能与由地形和过去的火灾抑制引起的高度分散的蒙太金龙叶栖息地。

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