期刊
NATURE
卷 466, 期 7305, 页码 482-U5出版社
NATURE PORTFOLIO
DOI: 10.1038/nature09210
关键词
-
资金
- NERC
- Wellcome Trust
- NSF
- NIH
- NIA
- NERC [NE/E013015/1, NE/G004390/1, NE/E015921/1] Funding Source: UKRI
- Natural Environment Research Council [NE/G004390/1, NE/E015921/1, NE/E013015/1] Funding Source: researchfish
- Direct For Biological Sciences [0754247] Funding Source: National Science Foundation
- Div Of Biological Infrastructure [0754247] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [0731346] Funding Source: National Science Foundation
Environmental change has altered the phenology, morphological traits and population dynamics of many species(1,2). However, the links underlying these joint responses remain largely unknown owing to a paucity of long-term data and the lack of an appropriate analytical framework(3). Here we investigate the link between phenotypic and demographic responses to environmental change using a new methodology and a long-term (1976-2008) data set from a hibernating mammal (the yellow-bellied marmot) inhabiting a dynamic subalpine habitat. We demonstrate how earlier emergence from hibernation and earlier weaning of young has led to a longer growing season and larger body masses before hibernation. The resulting shift in both the phenotype and the relationship between phenotype and fitness components led to a decline in adult mortality, which in turn triggered an abrupt increase in population size in recent years. Direct and trait-mediated effects of environmental change made comparable contributions to the observed marked increase in population growth. Our results help explain how a shift in phenology can cause simultaneous phenotypic and demographic changes, and highlight the need for a theory integrating ecological and evolutionary dynamics in stochastic environments(4,5).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据