量化两动物物种对热浪,寒流和干旱的暴露
Evan Twomey1, Francisco Sylvester2, Jonas Jourdan3
1Department of Wildlife, Zoo-Animal-Biology and Systematics, Faculty of Biological Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany.
概括
两动物越来越容易受到极端气候事件的影响,如热浪和干旱,这与它们的人口减少有关. 这项研究量化了全球两动物对这些事件的暴露,突出了脆弱的物种和地区.
科学领域:
- 生态与保护生物学 生态与保护生物学
- 气候变化科学 气候变化科学
- 生物多样性研究的研究.
背景情况:
- 两动物面临着气候变化和极端天气事件带来的重大全球威胁.
- 了解物种对这些事件的暴露对于有效的保护至关重要.
研究的目的:
- 量化全球两动物对热浪,寒流和干旱的暴露.
- 评估极端事件暴露与两动物数量下降之间的关联.
主要方法:
- 利用了MERRA-2气候数据和标准化降水蒸发指数 (SPEI) 数据库.
- 来自IUCN红色名单 (7202种) 的综合两分布数据.
- 采用后勤回归来分析暴露-下降关系.
主要成果:
- 热浪和干旱在亚马逊,马达加斯加和欧洲等地区增加.
- 40%的两动物物种受到热浪的影响,16%受到干旱的影响.
- 暴露于热浪和干旱与国际自然保护联盟 (IUCN) 红色名单上的地位恶化的风险更高.
结论:
- 极端气候事件,特别是热浪和干旱,在两动物数量减少方面发挥着重要作用.
- 确定了对气候变化影响高度敏感的生物多样性热点和两动物家族.
- 为了制定全面的保护战略,需要对物种的生物特征和与其他因素的相互作用进行进一步的研究.
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