DOI: 10.1111/gcb.13468
论文题名: The temporal structure of the environment may influence range expansions during climate warming
作者: Fey S.B. ; Wieczynski D.J.
刊名: Global Change Biology
出版年: 2017
卷: 23, 期: 2 起始页码: 635
结束页码: 645
语种: 英语
英文关键词: autocorrelation
; community assembly
; Daphnia lumholtzi
; establishment
; extreme temperature events
; inflationary effect
; non-native species
; range shifts
; species interaction
Scopus关键词: Daphnia lumholtzi
; Daphnia pulex
; Pulex
英文摘要: Understanding the processes that influence range expansions during climate warming is paramount for predicting population extirpations and preparing for the arrival of non-native species. While climate warming occurs over a background of variation due to cyclical processes and irregular events, the temporal structure of the thermal environment is largely ignored when forecasting the dynamics of non-native species. Ecological theory predicts that high levels of temporal autocorrelation in the environment – relatedness between conditions occurring in close temporal proximity – will favor populations that would otherwise have an average negative growth rate by increasing the duration of favorable environmental periods. Here, we invoke such theory to explain the success of biological invasions and evaluate the hypothesis that sustained periods of high environmental temperature can act synergistically with increases in mean temperature to favor the establishment of non-native species. We conduct a 60-day field mesocosm experiment to measure the population dynamics of the non-native cladoceran zooplankter Daphnia lumholtzi and a native congener Daphnia pulex in ambient temperature environments (control), warmed with recurrent periods of high environmental temperatures (uncorrelated-warmed), or warmed with sustained periods of high environmental temperatures (autocorrelated-warmed), such that both warmed treatments exhibited the same mean temperature but exhibited different temporal structures of their thermal environments. Maximum D. lumholtzi densities in the warmed-autocorrelated treatment were threefold and eightfold higher relative to warmed-uncorrelated and control treatments, respectively. Yet, D. lumholtzi performed poorly across all experimental treatment(s) relative to D. pulex and were undetectable (by) the end of the experiment. Using mathematical models, we show that this increase in performance can occur alongside increasing temporal autocorrelation and should occur over a broad range of warming scenarios. These results provide both empirical and theoretical evidence that the temporal structure of the environment can influence the performance of species undergoing range expansions due to climate warming. © 2016 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. 资助项目: Fey, S.B.
; Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, United States
; 电子邮件: Samuel.fey@yale.edu
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61068
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, CT, United States
Recommended Citation:
Fey S.B.,Wieczynski D.J.. The temporal structure of the environment may influence range expansions during climate warming[J]. Global Change Biology,2017-01-01,23(2)