DOI: 10.1111/gcb.12165
论文题名: Increasing variance in North Pacific climate relates to unprecedented ecosystem variability off California
作者: Sydeman W.J. ; Santora J.A. ; Thompson S.A. ; Marinovic B. ; Lorenzo E.D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 6 起始页码: 1662
结束页码: 1675
语种: 英语
英文关键词: Central Pacific warming
; Climate change
; Ecological importance
; Euphausiids
; Forage fish
; Non-stationarity
; North Pacific Gyre Oscillation
; Remote forcing
; Salmon
; Seabirds
Scopus关键词: climate change
; climate forcing
; climate oscillation
; demography
; ecosystem dynamics
; ecosystem response
; environmental assessment
; marine ecosystem
; Pacific Decadal Oscillation
; salmonid
; seabird
; upwelling
; warming
; animal
; article
; biodiversity
; climate change
; ecosystem
; food chain
; Pacific Ocean
; United States
; Animals
; Biodiversity
; California
; Climate Change
; Ecosystem
; Food Chain
; Pacific Ocean
; California
; Pacific Ocean
; Pacific Ocean (Central)
; United States
; Euphausiacea
; Euphausiidae
; Thysanoessa spinifera
英文摘要: Changes in variance are infrequently examined in climate change ecology. We tested the hypothesis that recent high variability in demographic attributes of salmon and seabirds off California is related to increasing variability in remote, large-scale forcing in the North Pacific operating through changes in local food webs. Linear, indirect numerical responses between krill (primarily Thysanoessa spinifera) and juvenile rockfish abundance (catch per unit effort (CPUE)) explained >80% of the recent variability in the demography of these pelagic predators. We found no relationships between krill and regional upwelling, though a strong connection to the North Pacific Gyre Oscillation (NPGO) index was established. Variance in NPGO and related central Pacific warming index increased after 1985, whereas variance in the canonical ENSO and Pacific Decadal Oscillation did not change. Anthropogenic global warming or natural climate variability may explain recent intensification of the NPGO and its increasing ecological significance. Assessing non-stationarity in atmospheric-environmental interactions and placing greater emphasis on documenting changes in variance of bio-physical systems will enable insight into complex climate-marine ecosystem dynamics. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62417
Appears in Collections: 影响、适应和脆弱性
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作者单位: Farallon Institute for Advanced Ecosystem Research, 101 H St Suite Q, Petaluma, CA, 94952, United States; Long Marine Laboratory, Institute for Marine Sciences, University of California, 100 Shaffer Road, Santa Cruz, CA, 95060, United States; Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA, 30332, United States
Recommended Citation:
Sydeman W.J.,Santora J.A.,Thompson S.A.,et al. Increasing variance in North Pacific climate relates to unprecedented ecosystem variability off California[J]. Global Change Biology,2013-01-01,19(6)