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暴露在远处野火的烟雾中,抑制了幼的生长

¹Department of Biology, The University of Scranton, 800 Linden Street, Scranton, PA, 18510, USA. cara.krieg@scranton.edu.

Scientific reports

|March 11, 2025

概括

暴露在野火烟雾中,即使是远处的火灾,也会伤害幼鸟. 三天高细颗粒物 (PM2.5) 降低了家的巢体重和骨生长,影响了野生动物的健康.

科学领域:

环境科学环境科学
生态生态学生态生态学
野生动物毒理学野生动物毒理学

背景情况:

由于气候变化,野火的频率和强度正在增加,导致广泛的烟雾污染.
之前对动物烟雾影响的研究主要集中在火灾,处方烧伤或实验室环境附近.
野生动物种群越来越多地暴露在远处野火的烟雾中.

研究的目的:

为了研究远处野火烟雾对野生鸟群的短期高细颗粒物 (PM2.5) 暴露的潜在致命影响.
评估PM2.5暴露对幼 (Troglodytes aedon) 生长和骨发育的影响.

主要方法:

在2023年6月加拿大野火造成的PM2.5污染升高的三天期间,对野生家种群的监测.
在化后的第6天和第10天,在暴露于PM2.5的幼和在没有这种暴露的前几年的幼之间,对幼体重量和尾长度进行比较.

主要成果:

与前几年相比,在生命的前六天内暴露在PM2.5升高的三天内,化后的第6天和第10天,化后的幼体重减少.
暴露的幼还表现出较短的tarsometatarsus骨头,表明骨尺寸较小.
在烟雾事件发生前或之后化的幼与前几年相比,在尺寸上没有显著差异.

结论:

短时间暴露在野火烟雾 (PM2.5) 中,即使在离火源很远的地方,也会对正在发育的鸟类造成致命的健康后果.
这些效应虽然不致命,但可能对个体的生存和生殖成功产生长期影响.
随着野火活动的升级,越来越多的野生动物群体面临着烟雾相关健康影响的风险,需要进一步的研究和监测.

关键词:

一个家庭.筑巢生长的成长筑巢生长的成长对于PM2.5来说,这是一个很好的例子.烟雾污染污染烟雾污染托罗格洛迪特类动物被认为是有毒的.野火的烟雾在野火的烟雾

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