气候变化领域集成服务门户(CCPortal): Light and energetics at seasonal extremes limit poleward range shifts

CCPortal

DOI	10.1038/s41558-021-01045-2
	Light and energetics at seasonal extremes limit poleward range shifts
	Ljungström G.; Langbehn T.J.; Jørgensen C.
发表日期	2021
ISSN	1758-678X
起始页码	530
结束页码	536
卷号	11 期号:6
英文摘要	Seasonality in light becomes increasingly extreme at high latitudes, both in terms of the diel light–dark cycle and the duration of light summers and dark winters. In contrast to temperature, this latitudinal gradient in light seasonality is not affected by climate change. A key question is therefore whether light may act as a fixed constraint on warming-driven redistributions of organisms at high latitudes. One answer is provided by studying mechanistic models of visual foraging and temperature-driven physiology along latitudinal gradients to project where populations survive and acquire resources to reproduce, and where they demise. Here we contrast such models for two widespread planktivorous fish types. We identify two processes through which seasonality in light can act as a barrier to poleward range expansions at high latitudes: (1) longer dark winters lead to greater depletion of overwinter energy stores and (2) a longer duration of midnight sun entails higher foraging-related predation mortality. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
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/237322
作者单位	Department of Biological Sciences, University of Bergen, Bergen, Norway
推荐引用方式 GB/T 7714	Ljungström G.,Langbehn T.J.,Jørgensen C.. Light and energetics at seasonal extremes limit poleward range shifts[J],2021,11(6).
APA	Ljungström G.,Langbehn T.J.,&Jørgensen C..(2021).Light and energetics at seasonal extremes limit poleward range shifts.Nature Climate Change,11(6).
MLA	Ljungström G.,et al."Light and energetics at seasonal extremes limit poleward range shifts".Nature Climate Change 11.6(2021).