Arid
DOI10.1002/ece3.3718
Timing of precipitation in an arid environment: Effects on population performance of a large herbivore
Heffelfinger, Levi J.1; Stewart, Kelley M.1; Bush, Anthony P.1; Sedinger, James S.1; Darby, Neal W.2; Bleich, Vernon C.1,3
通讯作者Heffelfinger, Levi J.
来源期刊ECOLOGY AND EVOLUTION
ISSN2045-7758
出版年2018
卷号8期号:6页码:3354-3366
英文摘要

Climate models predict that shifts in temperature and precipitation patterns are likely to occur across the globe. Changing climate will likely have strong effects on arid environments as a result of increased temperatures, increasing frequency and intensity of droughts, and less consistent pulses of rainfall. Therefore, understanding the link between patterns of precipitation, temperature, and population performance of species occupying these environments will continue to increase in importance as climatic shifts occur within these natural ecosystems. We sought to evaluate how individual, maternal, population, and environmental, particularly temperature and precipitation, level factors influence population performance of a large herbivore in an arid environment. We used mule deer (Odocoileus hemionus) as a representative species and quantified juvenile survival to test hypotheses about effects of environmental factors on population performance. Precipitation events occurring in mid- to late-pregnancy (January-April) leading to spring green-up, as indexed by normalized difference in vegetation index, had the strongest positive effect on juvenile survival and recruitment. In addition, larger neonates had an increased probability of survival. Our findings indicate that timing and amount of precipitation prior to parturition have strong influences on maternal nutritional condition, which was passed on to young. These results have important implications for understanding how animal populations may benefit from timing of precipitation during spring and prior to parturition, especially in arid environments.


英文关键词climate change drought juvenile survival Mojave Desert normalized difference in vegetation index Odocoileus hemionus
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000428522100025
WOS关键词DESERT MULE DEER ; VAGINAL-IMPLANT TRANSMITTERS ; BODY CONDITION INDEXES ; GREATER SAGE-GROUSE ; WHITE-TAILED DEER ; NUTRITIONAL CONDITION ; TEMPORAL VARIATION ; AUTUMN NUTRITION ; WILD MAMMALS ; SURVIVAL
WOS类目Ecology ; Evolutionary Biology
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/208797
作者单位1.Univ Nevada Reno, Dept Nat Resources & Environm Sci, Reno, NV USA;
2.Natl Pk Serv, Mojave Natl Preserve, Barstow, CA USA;
3.Calif Dept Fish & Game, Sierra Nevada Bighorn Sheep Recovery Program, Bishop, CA USA
推荐引用方式
GB/T 7714
Heffelfinger, Levi J.,Stewart, Kelley M.,Bush, Anthony P.,et al. Timing of precipitation in an arid environment: Effects on population performance of a large herbivore[J],2018,8(6):3354-3366.
APA Heffelfinger, Levi J.,Stewart, Kelley M.,Bush, Anthony P.,Sedinger, James S.,Darby, Neal W.,&Bleich, Vernon C..(2018).Timing of precipitation in an arid environment: Effects on population performance of a large herbivore.ECOLOGY AND EVOLUTION,8(6),3354-3366.
MLA Heffelfinger, Levi J.,et al."Timing of precipitation in an arid environment: Effects on population performance of a large herbivore".ECOLOGY AND EVOLUTION 8.6(2018):3354-3366.
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