DOI: 10.1111/gcb.13838
Scopus记录号: 2-s2.0-85040545964
论文题名: Diversity in thermal affinity among key piscivores buffers impacts of ocean warming on predator–prey interactions
作者: Selden R.L. ; Batt R.D. ; Saba V.S. ; Pinsky M.L.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 1 起始页码: 117
结束页码: 131
语种: 英语
英文关键词: climate change
; functional diversity
; marine
; predator–prey
; spatial overlap
; species distribution model
Scopus关键词: climate change
; ecosystem resilience
; marine ecosystem
; pelagic fish
; piscivore
; predator-prey interaction
; refugium
; shark
; spatial distribution
; species diversity
; warming
; United States
; Gadus morhua
; Squalidae
英文摘要: Asymmetries in responses to climate change have the potential to alter important predator–prey interactions, in part by altering the location and size of spatial refugia for prey. We evaluated the effect of ocean warming on interactions between four important piscivores and four of their prey in the U.S. Northeast Shelf by examining species overlap under historical conditions (1968–2014) and with a doubling in CO2. Because both predator and prey shift their distributions in response to changing ocean conditions, the net impact of warming or cooling on predator–prey interactions was not determined a priori from the range extent of either predator or prey alone. For Atlantic cod, an historically dominant piscivore in the region, we found that both historical and future warming led to a decline in the proportion of prey species’ range it occupied and caused a potential reduction in its ability to exert top-down control on these prey. In contrast, the potential for overlap of spiny dogfish with prey species was enhanced by warming, expanding their importance as predators in this system. In sum, the decline in the ecological role for cod that began with overfishing in this ecosystem will likely be exacerbated by warming, but this loss may be counteracted by the rise in dominance of other piscivores with contrasting thermal preferences. Functional diversity in thermal affinity within the piscivore guild may therefore buffer against the impact of warming on marine ecosystems, suggesting a novel mechanism by which diversity confers resilience. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110565
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Ecology, Evolution and Natural Resources, Rutgers University, New Brunswick, NJ, United States; Geophysical Fluid Dynamics Laboratory, National Oceanic and Atmospheric Administration, Northeast Fisheries Science Center, Princeton, NJ, United States
Recommended Citation:
Selden R.L.,Batt R.D.,Saba V.S.,et al. Diversity in thermal affinity among key piscivores buffers impacts of ocean warming on predator–prey interactions[J]. Global Change Biology,2018-01-01,24(1)