globalchange  > 气候变化事实与影响
DOI: 10.1002/1438-390X.1005
WOS记录号: WOS:000463155300005
论文题名:
Demographic consequences of climate variation along an elevational gradient for a montane terrestrial salamander
作者: Caruso, Nicholas M.1,2; Rissler, Leslie J.1,3
通讯作者: Caruso, Nicholas M.
刊名: POPULATION ECOLOGY
ISSN: 1438-3896
EISSN: 1438-390X
出版年: 2019
卷: 61, 期:2, 页码:171-182
语种: 英语
英文关键词: capture-recapture ; growth ; life history ; MCMC ; Plethodon ; survival
WOS关键词: LOCOMOTOR PERFORMANCE ; PLETHODON-CINEREUS ; POPULATION-GROWTH ; WOOD FROG ; TEMPERATURE ; DISPERSAL ; DECLINES ; SURVIVAL ; RANGE ; WATER
WOS学科分类: Ecology
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Climate change represents a significant threat to amphibians. However, for many species, the relationship between demography and climate is unknown, which limits predictive models. Here, we describe the life history variation of Plethodon montanus using capture-recapture data over a period of 4 years, along an elevational gradient to determine how survival and growth vary with climate, and how these relationships vary with elevation. We used a hierarchical model to estimate asymptotic size and growth rate and a spatial Cormack-Jolly-Seber model to estimate the probability of capture and survival and dispersal variance. We found that during the active season, growth and survival rates are both positively affected by precipitation; however, while survival was positively affected by temperature at all elevations, higher temperatures led to a decrease in growth at lower elevations, while at higher elevations the opposite was true. During the inactive season, we found reduced growth rates, whereas survival was lower compared with the active at lower elevations but was higher at higher elevations. Increased inactive season temperatures resulted in decreased survival while we found that temperature, amount of snow, and elevation interacted to influence survival. At low elevations, which were warmer, survival decreased with increasing snowfall but at higher elevations, survival generally increased with increasing snowfall. Our results demonstrate that understanding how the environment can affect salamander demography to develop mechanistic models will require knowledge of the actual environmental conditions experienced by a given population as well as an understanding of the overall differences in climate at a given site.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/132888
Appears in Collections:气候变化事实与影响

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作者单位: 1.Univ Alabama, Dept Biol Sci, Tuscaloosa, AL USA
2.Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
3.Natl Sci Fdn, Directorate Biol Sci, 2415 Eisenhower Ave, Alexandria, VA 22314 USA

Recommended Citation:
Caruso, Nicholas M.,Rissler, Leslie J.. Demographic consequences of climate variation along an elevational gradient for a montane terrestrial salamander[J]. POPULATION ECOLOGY,2019-01-01,61(2):171-182
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