DOI: 10.1016/j.tree.2013.03.008
论文题名: Ecosystem ecology: Size-based constraints on the pyramids of life
作者: Trebilco R. ; Baum J.K. ; Salomon A.K. ; Dulvy N.K.
刊名: Trends in Ecology and Evolution
ISSN: 1695347
出版年: 2013
卷: 28, 期: 7 起始页码: 423
结束页码: 431
语种: 英语
英文关键词: Biomass pyramid
; Body-size-distribution
; Ecological baselines
; Macroecology
; Metabolic theory of ecology
; Omnivory
; Ontogenetic diet shift
; Size spectra
; Trophic pyramid
; Turnover
Scopus关键词: abundance
; baseline conditions
; biomass
; body size
; climate change
; community structure
; dietary shift
; ecosystem function
; energy flow
; exploitation
; macroecology
; metabolism
; omnivory
; ontogeny
; predator
; size distribution
; trophic structure
; turnover
; biological model
; biomass
; body size
; climate change
; ecology
; ecosystem
; environmental protection
; evaluation study
; food chain
; human
; methodology
; review
; Biomass
; Body Size
; Climate Change
; Conservation of Natural Resources
; Ecology
; Ecosystem
; Food Chain
; Humans
; Models, Biological
英文摘要: Biomass distribution and energy flow in ecosystems are traditionally described with trophic pyramids, and increasingly with size spectra, particularly in aquatic ecosystems. Here, we show that these methods are equivalent and interchangeable representations of the same information. Although pyramids are visually intuitive, explicitly linking them to size spectra connects pyramids to metabolic and size-based theory, and illuminates size-based constraints on pyramid shape. We show that bottom-heavy pyramids should predominate in the real world, whereas top-heavy pyramids indicate overestimation of predator abundance or energy subsidies. Making the link to ecological pyramids establishes size spectra as a central concept in ecosystem ecology, and provides a powerful framework both for understanding baseline expectations of community structure and for evaluating future scenarios under climate change and exploitation. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67401
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
There are no files associated with this item.
作者单位: Earth to Ocean Research Group, Biological Sciences, Simon Fraser University, 8888 University Drive, Vancouver, BC, V5S 1A6, Canada; Department of Biology, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada; School of Resource and Environmental Management, Simon Fraser University, 8888 University Drive, Vancouver, BC, V5S 1A6, Canada
Recommended Citation:
Trebilco R.,Baum J.K.,Salomon A.K.,et al. Ecosystem ecology: Size-based constraints on the pyramids of life[J]. Trends in Ecology and Evolution,2013-01-01,28(7)