气候变化领域集成服务门户(CCPortal): Spatial patterns and predictors of trophic control in marine ecosystems

CCPortal

DOI	10.1111/ele.12481
	Spatial patterns and predictors of trophic control in marine ecosystems
	Boyce D.G.; Frank K.T.; Worm B.; Leggett W.C.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:10
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.
英文关键词	Bottom-up; Consumer control; Diversity; Resource control; Temperature; Top-down
学科领域	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
语种	英语
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
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118637
作者单位	Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada; Ocean Sciences Division, Bedford Institute of Oceanography, PO Box 1006, Dartmouth, NS B2Y 4A2, Canada; Department of Biology, Dalhousie University, Halifax, NS B3H 4J1, Canada
推荐引用方式 GB/T 7714	Boyce D.G.,Frank K.T.,Worm B.,et al. Spatial patterns and predictors of trophic control in marine ecosystems[J],2015,18(10).
APA	Boyce D.G.,Frank K.T.,Worm B.,&Leggett W.C..(2015).Spatial patterns and predictors of trophic control in marine ecosystems.Ecology Letters,18(10).
MLA	Boyce D.G.,et al."Spatial patterns and predictors of trophic control in marine ecosystems".Ecology Letters 18.10(2015).