全球顶级食尸动物的减少威胁着人类的健康
Chinmay Sonawane1, Maya Xu1, Natalie Ward1
1Department of Biology, Stanford University, Stanford, CA 94305.
概括
在全球范围内,有36%的脊椎动物杂食物种受到威胁,大型杂食物种正在减少,而小型杂食物种正在壮成长. 这种转变增加了人类的疾病风险,因为它延长了尸体的持续性,并使病原体传播.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 公共卫生 公共卫生
背景情况:
- 脊椎动物的食尸动物对生态系统的健康至关重要,并减少动物间传染病的传播.
- 了解食尸动物的状况对于人类健康至关重要,尤其是在人类世.
- 需要对食尸动物保护进行全球评估,以告知公共卫生战略.
研究的目的:
- 审查1376种脊椎动物杂食物种的保护状况.
- 检查食尸动物种群趋势对人类健康的影响.
- 为了确定驱动食尸动物减少的关键威胁,并为保护行动提供信息.
主要方法:
- 进行了对1376种脊椎动物杂食物种的保护状况的全球审查.
- 分析了人口趋势,区分了顶峰和 mesoscavengers.
- 相关的掠食者社区结构转变可能对动物传染病动态产生影响.
主要成果:
- 36%的被审查的食尸动物物种受到威胁或下降.
- 顶级食尸动物不成比例地处于危险之中,而中型食尸动物由于人为补贴而增加.
- 杂食群落的变化可能会增加尸体的持续性,促进动物性传染病原体的传播和水库宿主的增殖.
结论:
- 顶级食尸动物的减少和中层食尸动物的增加,通过改变疾病动态,对公众健康构成风险.
- 主要威胁包括密集畜牧业生产,土地利用变化和野生动物贸易.
- 对食尸动物采取紧急保护行动对于维持生态系统服务和保护人类健康至关重要.
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