DOI: 10.1111/ele.12481
Scopus记录号: 2-s2.0-84941022176
论文题名: Spatial patterns and predictors of trophic control in marine ecosystems
作者: Boyce D.G. ; Frank K.T. ; Worm B. ; Leggett W.C.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 10 起始页码: 1001
结束页码: 1011
语种: 英语
英文关键词: Bottom-up
; Consumer control
; Diversity
; Resource control
; Temperature
; Top-down
Scopus关键词: biodiversity
; bottom-up control
; field method
; marine ecosystem
; Northern Hemisphere
; omnivory
; primary production
; regression analysis
; resource availability
; species diversity
; temperature
; top-down control
; animal
; biodiversity
; biological model
; ecosystem
; factual database
; food chain
; geography
; marine biology
; multivariate analysis
; plankton
; spatial analysis
; statistical model
; temperature
; Animals
; Biodiversity
; Databases, Factual
; Ecosystem
; Food Chain
; Geography
; Linear Models
; Marine Biology
; Models, Biological
; Multivariate Analysis
; Plankton
; Spatial Analysis
; Temperature
英文摘要: A key question in ecology is under which conditions ecosystem structure tends to be controlled by resource availability vs. consumer pressure. Several hypotheses derived from theory, experiments and observational field studies have been advanced, yet a unified explanation remains elusive. Here, we identify common predictors of trophic control in a synthetic analysis of 52 observational field studies conducted within marine ecosystems across the Northern Hemisphere and published between 1951 and 2014. Spatial regression analysis of 45 candidate variables revealed temperature to be the dominant predictor, with unimodal effects on trophic control operating both directly (r2 = 0.32; P < 0.0001) and indirectly through influences on turnover rate and quality of primary production, biodiversity and omnivory. These findings indicate that temperature is an overarching determinant of the trophic dynamics of marine ecosystems, and that variation in ocean temperature will affect the trophic structure of marine ecosystems through both direct and indirect mechanisms. © 2015 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107855
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biology, Queen's University, Kingston, ON, Canada; Ocean Sciences Division, Bedford Institute of Oceanography, PO Box 1006, Dartmouth, NS, Canada; Department of Biology, Dalhousie University, Halifax, NS, Canada
Recommended Citation:
Boyce D.G.,Frank K.T.,Worm B.,et al. Spatial patterns and predictors of trophic control in marine ecosystems[J]. Ecology Letters,2015-01-01,18(10)