DOI: 10.1111/geb.13049
论文题名: Local climate determines vulnerability to camouflage mismatch in snowshoe hares
作者: Zimova M. ; Sirén A.P.K. ; Nowak J.J. ; Bryan A.M. ; Ivan J.S. ; Morelli T.L. ; Suhrer S.L. ; Whittington J. ; Mills L.S.
刊名: Global Ecology and Biogeography
ISSN: 1466822X
出版年: 2020
卷: 29, 期: 3 语种: 英语
英文关键词: adaptation
; camouflage mismatch
; climate change
; latitudinal gradient
; phenological mismatch
; phenotypic plasticity
; range edge
; snow
; snowshoe hares
Scopus关键词: adaptation
; climate change
; lagomorph
; latitudinal gradient
; phenology
; phenotypic plasticity
; range size
; regional climate
; vulnerability
; North America
; Lepus
; Lepus americanus
; Mammalia
英文摘要: Aim: Phenological mismatches, when life-events become mistimed with optimal environmental conditions, have become increasingly common under climate change. Population-level susceptibility to mismatches depends on how phenology and phenotypic plasticity vary across a species’ distributional range. Here, we quantify the environmental drivers of colour moult phenology, phenotypic plasticity, and the extent of phenological mismatch in seasonal camouflage to assess vulnerability to mismatch in a common North American mammal. Location: North America. Time period: 2010–2017. Major taxa studied: Snowshoe hare (Lepus americanus). Methods: We used > 5,500 by-catch photographs of snowshoe hares from 448 remote camera trap sites at three independent study areas. To quantify moult phenology and phenotypic plasticity, we used multinomial logistic regression models that incorporated geospatial and high-resolution climate data. We estimated occurrence of camouflage mismatch between hares’ coat colour and the presence and absence of snow over 7 years of monitoring. Results: Spatial and temporal variation in moult phenology depended on local climate conditions more so than on latitude. First, hares in colder, snowier areas moulted earlier in the fall and later in the spring. Next, hares exhibited phenotypic plasticity in moult phenology in response to annual variation in temperature and snow duration, especially in the spring. Finally, the occurrence of camouflage mismatch varied in space and time; white hares on dark, snowless background occurred primarily during low-snow years in regions characterized by shallow, short-lasting snowpack. Main conclusions: Long-term climate and annual variation in snow and temperature determine coat colour moult phenology in snowshoe hares. In most areas, climate change leads to shorter snow seasons, but the occurrence of camouflage mismatch varies across the species’ range. Our results underscore the population-specific susceptibility to climate change-induced stressors and the necessity to understand this variation to prioritize the populations most vulnerable under global environmental change. © 2019 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158941
Appears in Collections: 气候变化与战略
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作者单位: Wildlife Biology Program, University of Montana, Missoula, MT, United States; Department of Environmental Conservation, University of Massachusetts, Amherst, MA, United States; U.S. Geological Survey, Northeast Climate Adaptation Science Center, Amherst, MA, United States; Integrated Environmental Data, LLC, Berne, NY, United States; Colorado Parks and Wildlife, Fort Collins, CO, United States; Parks Canada, Banff National Park Resource Conservation, Banff, AB, Canada; Wildlife Biology Program and Office of Research and Creative Scholarship, University of Montana, Missoula, MT, United States; School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Zimova M.,Sirén A.P.K.,Nowak J.J.,et al. Local climate determines vulnerability to camouflage mismatch in snowshoe hares[J]. Global Ecology and Biogeography,2020-01-01,29(3)