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首页> 外文期刊>Southeastern naturalist >Southern Flying Squirrels (Glaucomys volans) as Major Predators of Avian Nest Boxes in Conecuh National Forest, Alabama
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Southern Flying Squirrels (Glaucomys volans) as Major Predators of Avian Nest Boxes in Conecuh National Forest, Alabama

机译：南部飞行松鼠（Glaucomys volans）作为禽巢箱的主要捕食者在Conecuh国家森林，阿拉巴马州

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Bird population dynamics are strongly affected by the ability to successfully reproduce, and nest predation is the primary cause of reproductive failure for most birds. Efforts to understand nest predation and manage its effects on species of conservation concern require knowledge of the ecology of associated predator assemblages. Recently, studies using cameras to record events at nests have illuminated this previously under-studied avian life stage, but such studies have been largely limited to open-cup nests. Cavity nests may be depredated by a different suite of predators, and incubating or brooding females occupying such nests may be more vulnerable to predation relative to open-cup nests. Here, we used motion-activated, infrared trail cameras to record predators of artificial nest boxes in a Pinus palustris Mill. (Longleaf Pine) forest in southern Alabama. Although Glaucomys volans L. (Southern Flying Squirrel) have only rarely been captured on film preying on nests, we found them to be responsible for the vast majority (84%) of bird-nest depredations at nest boxes, and these depredations contributed to a surprisingly low overall rate of nest success (similar to 20%). These results may have implications for the conservation of birds that nest in artificial cavities in Longleaf Pine forests and highlight the importance of further studies on predator assemblages and their effects on nesting birds.
机译：鸟类人口动态受到成功繁殖能力的强烈影响，巢捕食是大多数鸟类生殖失败的主要原因。努力了解巢捕食并管理其对保护界面的影响，需要了解相关捕食者组合的生态学。最近，使用相机在巢穴中记录事件的研究已经照亮了这一先前在学习过的禽类生活阶段，但此类研究已经主要限于开放式巢穴。腔巢可能被不同的捕食者套件所剥夺，培育或沉溺于占据这种巢的女性可能更容易受到相对于开放式杯巢的捕食。在这里，我们使用了运动激活的红外线跟踪相机来记录Pinus Palustris Mill中的人造巢箱的捕食者。 （Longleaf Pine）森林在阿拉巴马州南部。虽然Glaucomys Volans L.（南方飞鼠）只有很少被捕获在巢穴上的电影中，但我们发现它们负责巢箱的绝大多数（84％）的鸟巢掠夺，这些掠夺促成了令人惊讶的是，巢成功的总体成功率（类似于20％）。这些结果可能对巢穴巢穴的鸟类储存植物在长叶松树林中储存，并突出了进一步研究捕食者组合的重要性及其对嵌套鸟类的影响。

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