Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14015 |
Climate warming is associated with smaller body size and shorter lifespans in moose near their southern range limit | |
Hoy, Sarah R.; Peterson, Rolf O.; Vucetich, John A. | |
2018-06-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:6页码:2488-2497 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Despite the importance of body size for individual fitness, population dynamics and community dynamics, the influence of climate change on growth and body size is inadequately understood, particularly for long-lived vertebrates. Although temporal trends in body size have been documented, it remains unclear whether these changes represent the adverse impact of climate change (environmental stress constraining phenotypes) or its mitigation (via phenotypic plasticity or evolution). Concerns have also been raised about whether climate change is indeed the causal agent of these phenotypic shifts, given the length of time-series analysed and that studies often do not evaluate - and thereby sufficiently rule out - other potential causes. Here, we evaluate evidence for climate-related changes in adult body size (indexed by skull size) over a 4-decade period for a population of moose (Alces alces) near the southern limit of their range whilst also considering changes in density, predation, and human activities. In particular, we document: (i) a trend of increasing winter temperatures and concurrent decline in skull size (decline of 19% for males and 13% for females) and (ii) evidence of a negative relationship between skull size and winter temperatures during the first year of life. These patterns could be plausibly interpreted as an adaptive phenotypic response to climate warming given that latitudinal/temperature clines are often accepted as evidence of adaptation to local climate. However, we also observed: (iii) that moose with smaller skulls had shorter lifespans, (iv) a reduction in lifespan over the 4-decade study period, and (v) a negative relationship between lifespan and winter temperatures during the first year of life. Those observations indicate that this phenotypic change is not an adaptive response to climate change. However, this decline in lifespan was not accompanied by an obvious change in population dynamics, suggesting that climate change may affect population dynamics and life-histories differently. |
英文关键词 | Alces alces climate change density dependence early life conditions growth phenotypic change predation winter temperatures |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433717700022 |
WOS关键词 | ALCES-ALCES ; NORTHEASTERN MINNESOTA ; POPULATION-DYNAMICS ; PLASTIC RESPONSES ; BERGMANNS RULE ; ISLE ROYALE ; BOTTOM-UP ; TOP-DOWN ; EVOLUTIONARY ; SYSTEMS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17552 |
专题 | 气候变化 资源环境科学 |
作者单位 | Michigan Technol Univ, Sch Forest Resources & Environm Sci, Houghton, MI 49931 USA |
推荐引用方式 GB/T 7714 | Hoy, Sarah R.,Peterson, Rolf O.,Vucetich, John A.. Climate warming is associated with smaller body size and shorter lifespans in moose near their southern range limit[J]. GLOBAL CHANGE BIOLOGY,2018,24(6):2488-2497. |
APA | Hoy, Sarah R.,Peterson, Rolf O.,&Vucetich, John A..(2018).Climate warming is associated with smaller body size and shorter lifespans in moose near their southern range limit.GLOBAL CHANGE BIOLOGY,24(6),2488-2497. |
MLA | Hoy, Sarah R.,et al."Climate warming is associated with smaller body size and shorter lifespans in moose near their southern range limit".GLOBAL CHANGE BIOLOGY 24.6(2018):2488-2497. |
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