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首页> 外文期刊>Journal of Wildlife Management >Winter Forage Selection in White-Tailed Deer at High Density: Balsam Fir is the Best of a Bad Choice
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Winter Forage Selection in White-Tailed Deer at High Density: Balsam Fir is the Best of a Bad Choice

机译：高密度白尾鹿冬季牧草的选择：苦瓜冷杉是最好的坏选择

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摘要

We assessed winter forage selection by white-tailed deer (Odocoileus virginianus) on Anticosti Island, Quebec, Canada, using cafeteria-feeding trials. Winter habitat on Anticosti is degraded and free-ranging deer at high densities consume 70% balsam fir (Abies balsamea) and 20% white spruce (Picea glauca), even though spruce is much more available than fir. Deer ate 89.9% balsam fir and 10.1% white spruce when the availability of both trees was equal. Deer did not eat shredded twigs more than intact twigs. Fiber content and condensed tannins were greater in white spruce than in balsam fir. Deer preference for fir was not based on texture but, more likely, on plant constituents, so we concluded that deer will nearly eliminate fir before they use any significant amount of white spruce. Management actions, therefore, need to be undertaken to enhance balsam fir regeneration.
机译：我们使用食堂喂养试验评估了加拿大魁北克安蒂科斯蒂岛上的白尾鹿（Odocoileus virginianus）对冬季饲料的选择。安蒂科斯蒂（Anticosti）的冬季栖息地已经退化，高密度的散养鹿消耗了70％的苦瓜冷杉（Abies balsamea）和20％的白云杉（Picea glauca），尽管云杉比冷杉更容易获得。当两棵树的可用性相同时，鹿吃了89.9％的苦瓜冷杉和10.1％的白云杉。鹿没有吃完完整的树枝，也没吃碎树枝。白云杉中的纤维含量和单宁缩合大于香脂冷杉。鹿对冷杉的偏好不是基于质地，而是更可能取决于植物成分，因此我们得出结论，在鹿使用任何大量的白云杉之前，鹿几乎可以消除冷杉。因此，需要采取管理措施来增强香脂冷杉的再生。

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