DOI: 10.1007/s11538-020-00700-7
论文题名: Should I Stay or Should I Go: Partially Sedentary Populations Can Outperform Fully Dispersing Populations in Response to Climate-Induced Range Shifts
作者: Cobbold C.A. ; Stana R.
刊名: Bulletin of Mathematical Biology
ISSN: 928240
出版年: 2020
卷: 82, 期: 2 语种: 英语
英文关键词: Climate change
; Geographical range shift
; Integrodifference equation
; Moving-habitat model
; Partially sedentary
; Population persistence
Scopus关键词: article
; climate change
; habitat
; population density
; velocity
; warming
英文摘要: Global mean temperatures have increased by 0.72 ∘C since the 1950s, and climate warming is resulting in geographical shifts in the range limits of many species. Climate velocity is estimated to be 0.42 km/year, and if a species fails to adapt to the new climate, it must track the location of its climatically constrained niche in order to survive. Dispersal has an important role to play in enabling a population to shift is geographical range limits, but many species are partially sedentary, with only a fraction of the population dispersing each year. We ask, can partially sedentary populations keep pace with climate or will such populations be more vulnerable to extinction? Through the development of a moving-habitat integrodifference equation model, we show that, provided climate velocity is not too large, partially sedentary populations can outperform fully dispersing populations in one of two ways: (i) by persisting at climate speeds where a fully dispersing population cannot, and (ii) exhibiting higher population densities. Moreover, we find that positive density-dependent dispersal can further improve the likelihood a population can persist. Our results highlight the positive role that non-dispersers may play in mitigating the effects of overdispersal and facilitating population persistence in a warming world. © 2020, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159838
Appears in Collections: 气候变化与战略
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作者单位: School of Mathematics and Statistics, University of Glasgow, University Place, Glasgow, G12 8QW, United Kingdom; Boyd Orr Centre for Population and Ecosystem Health, University of Glasgow, Glasgow, G12 8QQ, United Kingdom; School of Mathematics, University of Leeds, Leeds, LS2 9JT, United Kingdom
Recommended Citation:
Cobbold C.A.,Stana R.. Should I Stay or Should I Go: Partially Sedentary Populations Can Outperform Fully Dispersing Populations in Response to Climate-Induced Range Shifts[J]. Bulletin of Mathematical Biology,2020-01-01,82(2)