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评估干地鸟类对热浪的全球脆弱性

Chenchen Ding^1,2, Tim Newbold², Eric I Ameca^1,3

¹Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China.

Global change biology

|January 26, 2024

概括

极端的热浪威胁着干旱地区的鸟类,91%的脆弱物种目前没有被列为受威胁物种. 热浪加快了人口减少,突出了保护行动的迫切需要.

科学领域:

生态生态学生态生态学
气候变化生物学气候变化生物学
保护科学保护科学

背景情况:

全球变暖增加了极端热浪的频率和强度.
热浪显著影响生物多样性,导致人口减少和范围转移.
保护计划经常忽视极端气候事件的影响.

研究的目的:

评估旱地鸟类对热浪的脆弱性.
为了确定高度易受热浪影响的鸟类物种的地区.
为保护和适应性管理策略提供科学基础.

主要方法:

基于特征的方法被用来评估1196种旱地鸟类的热浪脆弱性.
对物种的脆弱性进行了分类 (脆弱,高度脆弱,极度脆弱).
确定了脆弱物种的地理热点,并使用"生活行星数据库"分析了人口趋势.

主要成果:

发现888种旱地鸟类 (74%的评估物种) 容易受到热浪的影响,其中170种高度脆弱,8种极度脆弱.
大约91%的脆弱物种目前没有被IUCN列为受威胁的物种.
澳大利亚,南非和东非被确定为脆弱物种的顶级热点.
与非易受伤害的物种相比,易受伤害的物种种群在热浪后下降的速度明显快.

结论:

热浪是干旱地区鸟类种群的重大和当前威胁,影响尚未被认定为危物种.
该研究提供了一个框架,用于识别和优先考虑热浪易受伤害的物种,以保护它们.
迫切需要采取适应性管理策略,以减轻气候变化对干旱地区生态系统中的鸟类生物多样性的加速影响.

关键词:

鸟类鸟类鸟类鸟类鸟类气候变化气候变化气候变化干旱地区干旱地区极端气候事件是极端气候事件.热浪热浪热浪热浪热浪脆弱性评估评估脆弱性的评估

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