气候变化领域集成服务门户(CCPortal): Fish die-offs are concurrent with thermal extremes in north temperate lakes

CCPortal

DOI	10.1038/s41558-019-0520-y
	Fish die-offs are concurrent with thermal extremes in north temperate lakes
	Till A.; Rypel A.L.; Bray A.; Fey S.B.
发表日期	2019
ISSN	1758678X
EISSN	1758-6798
卷号	9 期号:8 页码:637-+
英文摘要	As environmental temperatures continue to rise and organisms experience novel and potentially lethal conditions1–5, the possibility of increased mass mortality events for animal populations appears likely1,6. Yet, due to die-off rarity and unpredictability, there have been few large-scale attempts to quantify the relationship between mass die-offs and local environmental temperatures. Here, we address this issue by analysing a database of 502 freshwater fish die-offs combined with lake-specific temperature profiles simulated for north temperate lake ecosystems. Die-offs driven by extreme summer conditions occurred disproportionately in lakes with warmer average surface temperatures and during periods of extreme heat. In contrast, we observed no relationships between current thermal extremes and die-offs attributed to infectious disease or winter environmental conditions. We forecast fish die-offs driven by summer environmental conditions to double by mid-century for north temperate lakes (2041–2059) and to increase more than fourfold by late century (2081–2099), particularly at southern latitudes. These results expose a direct link between novel temperature regimes and the increased probability of catastrophic ecological events in freshwater ecosystems. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
学科领域	Environmental Sciences;Environmental Studies;Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000477738300022
scopus关键词	Animalia
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/80695
作者单位	Department of Biology, Reed College, Portland, OR, United States; Department of Wildlife, Fish & Conservation Biology, University of California, Davis, Davis, CA, United States; Department of Mathematics, Reed College, Portland, OR, United States
推荐引用方式 GB/T 7714	Till A.,Rypel A.L.,Bray A.,et al. Fish die-offs are concurrent with thermal extremes in north temperate lakes[J],2019,9(8):637-+.
APA	Till A.,Rypel A.L.,Bray A.,&Fey S.B..(2019).Fish die-offs are concurrent with thermal extremes in north temperate lakes.Nature Climate Change,9(8),637-+.
MLA	Till A.,et al."Fish die-offs are concurrent with thermal extremes in north temperate lakes".Nature Climate Change 9.8(2019):637-+.