DOI: 10.1111/gcb.12355
论文题名: Anthropogenic modification disrupts species co-occurrence in stream invertebrates
作者: Larsen S. ; Ormerod S.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 1 起始页码: 51
结束页码: 60
语种: 英语
英文关键词: Assembly rules
; Disturbance
; Land-use
; Sediment deposition
; Spatial scale
; Species traits
Scopus关键词: anthropogenic effect
; coexistence
; environmental disturbance
; freshwater ecosystem
; global change
; invertebrate
; land use
; microhabitat
; species occurrence
; Invertebrata
; animal
; article
; Assembly rules
; biodiversity
; disturbance
; ecosystem
; human activities
; invertebrate
; land-use
; population dynamics
; river
; sediment deposition
; spatial scale
; species traits
; Assembly rules
; disturbance
; land-use
; sediment deposition
; spatial scale
; species traits
; Animals
; Biodiversity
; Ecosystem
; Human Activities
; Invertebrates
; Population Dynamics
; Rivers
英文摘要: The question of whether species co-occurrence is random or deterministic has received considerable attention, but little is known about how anthropogenic disturbance mediates the outcomes. By combining experiments, field surveys and analysis against null models, we tested the hypothesis that anthropogenic habitat modification disrupts species co-occurrence in stream invertebrates across spatial scales. Whereas communities in unmodified conditions were structured deterministically with significant species segregation, catchment-scale conversion to agriculture and sediment deposition at the patch- or micro-habitat scale apparently randomized species co-occurrences. This shift from non-random to random was mostly independent of species richness, abundance and spatial scale. Data on community-wide life-history traits (body size, dispersal ability and predatory habits) and beta-diversity indicated that anthropogenic modification disrupted community assembly by affecting biotic interactions and, to a lesser extent, altering habitat heterogeneity. These data illustrate that the balance between predictable and stochastic patterns in communities can reflect anthropogenic modifications that not only transcend scales but also change the relative forces that determine species coexistence. Research into the effects of habitat modification as a key to understanding global change should extend beyond species richness and composition to include species co-occurrence, species interactions and any functional consequences. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62175
Appears in Collections: 影响、适应和脆弱性
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作者单位: Leibniz Institute of Freshwater Ecology and Inland Fishery, Mueggelseedamm 310, Berlin, 12587, Germany; The German Centre for Integrative Biodiversity Research (iDiv), Deutscher Platz 5e, Leipzig, 04103, Germany; Catchment Research Group, Cardiff School of Biosciences, Sir Martin Evans Building Museum Avenue, Cardiff, CF10 3AX, United Kingdom
Recommended Citation:
Larsen S.,Ormerod S.J.. Anthropogenic modification disrupts species co-occurrence in stream invertebrates[J]. Global Change Biology,2014-01-01,20(1)