DOI: 10.1111/gcb.12895
论文题名: Testing local and global stressor impacts on a coastal foundation species using an ecologically realistic framework
作者: Cheng B.S. ; Bible J.M. ; Chang A.L. ; Ferner M.C. ; Wasson K. ; Zabin C.J. ; Latta M. ; Deck A. ; Todgham A.E. ; Grosholz E.D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 7 起始页码: 2488
结束页码: 2499
语种: 英语
英文关键词: Ostrea lurida
; Additive
; Climate change
; Diel-cycling hypoxia
; Latent
; Multiple stressors
; Olympia oyster
; Salinity
; Synergy
; Warming
Scopus关键词: climate change
; climate effect
; environmental stress
; hypoxia
; life history trait
; mollusc
; refuge
; salinity
; survival
; synergism
; North America
; Ostrea conchaphila
; Ostrea lurida
; Ostreidae
英文摘要: Despite the abundance of literature on organismal responses to multiple environmental stressors, most studies have not matched the timing of experimental manipulations with the temporal pattern of stressors in nature. We test the interactive effects of diel-cycling hypoxia with both warming and decreased salinities using ecologically realistic exposures. Surprisingly, we found no evidence of negative synergistic effects on Olympia oyster growth; rather, we found only additive and opposing effects of hypoxia (detrimental) and warming (beneficial). We suspect that diel-cycling provided a temporal refuge that allowed physiological compensation. We also tested for latent effects of warming and hypoxia to low-salinity tolerance using a seasonal delay between stressor events. However, we did not find a latent effect, rather a threshold survival response to low salinity that was independent of early life-history exposure to warming or hypoxia. The absence of synergism is likely the result of stressor treatments that mirror the natural timing of environmental stressors. We provide environmental context for laboratory experimental data by examining field time series environmental data from four North American west coast estuaries and find heterogeneous environmental signals that characterize each estuary, suggesting that the potential stressor exposure to oysters will drastically differ over moderate spatial scales. This heterogeneity implies that efforts to conserve and restore oysters will require an adaptive approach that incorporates knowledge of local conditions. We conclude that studies of multiple environmental stressors can be greatly improved by integrating ecologically realistic exposure and timing of stressors found in nature with organismal life-history traits. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61709
Appears in Collections: 影响、适应和脆弱性
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作者单位: Bodega Marine Laboratory, University of California, Davis, Davis, CA, United States; Department of Environmental Science and Policy, University of California, Davis, Davis, CA, United States; Department of Evolution and Ecology, University of California, Davis, Davis, CA, United States; San Francisco Bay National Estuarine Research Reserve, Tiburon, CA, United States; Elkhorn Slough National Estuarine Research Reserve, Watsonville, CA, United States; California State Coastal Conservancy, Oakland, CA, United States; Department of Animal Science, University of California, Davis, Davis, CA, United States
Recommended Citation:
Cheng B.S.,Bible J.M.,Chang A.L.,et al. Testing local and global stressor impacts on a coastal foundation species using an ecologically realistic framework[J]. Global Change Biology,2015-01-01,21(7)