猎 (Canis latrans) 巨量营养素消费和饮食与季节性和城市化相关
Katherine C B Weiss1,2, Sean C P Coogan3,4, Pierre Deviche1
1School of Life Sciences Arizona State University Tempe Arizona USA.
Ecology and evolution
|May 14, 2025
概括
狼的饮食因季节而异,城市狼在秋季/冬季消耗更多的碳水化合物,当时可以获得mesquite. 这影响了它们的能量摄入量和行为,这对于管理人类与野生动物在城市的共存至关重要.
科学领域:
- 生态生态学 生态生态学
- 野生动物生物学 野生动物生物学
- 营养生态学 营养生态学
背景情况:
- 捕食者饮食选择影响健康,健身和行为.
- 传统的食肉动物饮食研究假定猎物的宏观营养成分构成均.
- 像大猩猩这样的食肉掠食者消耗各种各样的猎物和非猎物物品,具有不同的宏观营养成分.
研究的目的:
- 评估狼 (Canis latrans) 饮食中巨量营养素组成的季节性和城市化驱动的变化.
- 了解食物的可用性和巨量营养素的含量如何塑造在城市化景观中的野狼猎食.
- 在人类造成的环境中,为人类与野生动物的共存策略提供信息.
主要方法:
- 在亚利桑那州菲尼克斯大都会地区收集的野狼便.
- 分析了体积成分的便含量,并使用了宏观营养素数据的文献值.
- 应用了营养的几何框架来评估饮食中宏观营养素的组成.
主要成果:
- 在中等和较少城市化地区,特别是在春夏季,狼的饮食显示出类似的宏观营养成分概况.
- 观察到饮食中巨量营养素消耗的季节性差异.
- 猎犬在秋冬期间消耗的非蛋白质能量相对于蛋白质能量更高,这与梅斯基特的可用性相吻合.
结论:
- 季节性食物的可用性和宏观营养素的组成显著影响着小狼的饮食.
- 大量营养素的摄入直接影响动物的生理和行为.
- 这些发现有助于更好地了解城市小丑生态,并支持人类与野生动物的管理.
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