DOI: 10.1111/gcb.12550
论文题名: Widespread rapid reductions in body size of adult salamanders in response to climate change
作者: Caruso N.M. ; Sears M.W. ; Adams D.C. ; Lips K.R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 6 起始页码: 1751
结束页码: 1759
语种: 英语
英文关键词: Appalachians
; Body size
; Climate
; Evolution
; Metabolism
; Salamanders
Scopus关键词: adaptation
; adult
; amphibian
; biophysics
; body size
; climate change
; climate effect
; environmental change
; growth response
; metabolism
; Appalachians
; Amphibia
; Plethodon
; Salamandroidea
; animal
; animal behavior
; biological model
; body size
; climate change
; energy metabolism
; female
; geography
; male
; physiology
; United States
; Urodela
; Animals
; Appalachian Region
; Behavior, Animal
; Body Size
; Climate Change
; Energy Metabolism
; Female
; Geography
; Male
; Models, Biological
; Urodela
英文摘要: Reduction in body size is a major response to climate change, yet evidence in globally imperiled amphibians is lacking. Shifts in average population body size could indicate either plasticity in the growth response to changing climates through changes in allocation and energetics, or through selection for decreased size where energy is limiting. We compared historic and contemporary size measurements in 15 Plethodon species from 102 populations (9450 individuals) and found that six species exhibited significant reductions in body size over 55 years. Biophysical models, accounting for actual changes in moisture and air temperature over that period, showed a 7.1-7.9% increase in metabolic expenditure at three latitudes but showed no change in annual duration of activity. Reduced size was greatest at southern latitudes in regions experiencing the greatest drying and warming. Our results are consistent with a plastic response of body size to climate change through reductions in body size as mediated through increased metabolism. These rapid reductions in body size over the past few decades have significance for the susceptibility of amphibians to environmental change, and relevance for whether adaptation can keep pace with climate change in the future. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62177
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biology, University of Maryland, College Park, MD, 20742, United States; Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, United States; Department of Biological Sciences, Clemson University, Clemson, SC, 29634, United States; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, Iowa, 50011, United States
Recommended Citation:
Caruso N.M.,Sears M.W.,Adams D.C.,et al. Widespread rapid reductions in body size of adult salamanders in response to climate change[J]. Global Change Biology,2014-01-01,20(6)