白尾鹿诱 改变了黑熊的地点使用,但不是移动或范围大小
Nathaniel H Wehr1, Nicholas L Fowler2, Todd M Kautz3
1Pennsylvania Cooperative Fish and Wildlife Research Unit The Pennsylvania State University University Park Pennsylvania USA.
Ecology and evolution
|February 16, 2026
概括
白尾鹿的诱增加了美国黑熊的访问和诱地点的持续时间,但没有改变它们的移动模式. 这突出了熊熊适应粮食补贴的能力,而不会改变更大规模的移动.
科学领域:
- 野生动物生态学野生动物生态学
- 行为生态学 行为生态学
- 保护生物学 保护生物学
背景情况:
- 人类产生的食品补贴,如诱,显著影响野生动物的行为.
- 了解非目标物种对有针对性的补贴的反应对于野生动物管理至关重要.
研究的目的:
- 评估白尾鹿诱地点对非目标美国黑熊网站使用和移动模式的影响.
- 为了确定黑熊是否会因人类提供的食物来源而改变他们的行为.
主要方法:
- 利用美国黑熊 (Ursus americanus) 在密歇根州上半岛的GPS项圈数据.
- 采用前后控制影响设计来比较网站使用和移动指标.
- 在2013年7月至2019年8月期间,分析了来自116个有诱和81个没有诱的控制站点的数据.
主要成果:
- 与对照组相比,黑熊在活跃的诱地点的访问次数增加了3倍,时间长达11倍.
- 在诱期间,对活跃的诱地点的访问更为夜间.
- 在运动指标 (范围大小,步长,转角度) 中没有发现显著差异.
结论:
- 美国黑熊很容易利用人为的食物补贴,如鹿场.
- 增加的网站使用和夜间活动在诱网站并没有转化为更大规模的移动模式的改变.
- 这些发现强调黑熊适应人类食物来源的能力,而不会显著改变空间行为.
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