首页> 美国卫生研究院文献>Animals : an Open Access Journal from MDPI >Eurasian Beaver (Castor fiber) Winter Foraging Preferences in Northern Poland—The Role of Woody Vegetation Composition and Anthropopression Level
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Eurasian Beaver (Castor fiber) Winter Foraging Preferences in Northern Poland—The Role of Woody Vegetation Composition and Anthropopression Level

机译:欧亚海狸(蓖麻纤维)冬季波兰北部的冬季觅食偏好 - 木质植被成分和培养型水平的作用

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摘要

The food preferences of beavers depend on many factors, such as forage taxonomy, stem diameter, and the distance from a riverbank. In this study, we investigated beavers’ diets and food preferences in an urban area of northern Poland subject to varying levels of human disturbance. In the course of the study, we confirmed a similar preference for the browsing of woody plants, as described in other studies. The most popular and preferred woody plants in beaver’s diet were willows and maples, and most woody plants were characterized by a stem diameter less than 10 cm. We also found that human disturbance played an important role in shaping the beavers’ diets. We discussed this phenomenon from the basis of optimal foraging theory.
机译:海狸的食物偏好依赖于许多因素,例如饲草分类,茎直径和河岸的距离。在这项研究中,我们调查了波兰北部城市地区的海狸饮食和食物偏好,受到不同程度的人类干扰。在该研究过程中,我们确认了在其他研究中描述的浏览木质植物的相似偏好。海狸饮食中最受欢迎和优选的木质植物是柳树和枫树,大多数木质植物的特征在于茎直径小于10厘米。我们还发现,人类骚乱在塑造了海狸饮食方面发挥着重要作用。我们从最佳觅食理论的基础上讨论了这种现象。

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