DOI: 10.1111/gcb.13004
论文题名: Global ecological impacts of invasive species in aquatic ecosystems
作者: Gallardo B. ; Clavero M. ; Sánchez M.I. ; Vilà M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 1 起始页码: 151
结束页码: 163
语种: 英语
英文关键词: Biological invasions
; Bottom-up effects
; Ecosystem engineers
; Effect size
; Exotic species
; Food web
; Habitat alteration
; Meta-analysis
; Top-down effects
; Trophic cascade
Scopus关键词: aquatic ecosystem
; biological invasion
; ecological impact
; ecosystem engineering
; food web
; invasive species
; meta-analysis
; size effect
; trophic cascade
; Invertebrata
; fresh water
; animal
; aquatic species
; chemistry
; ecosystem
; food chain
; introduced species
; meta analysis
; population dynamics
; Animals
; Aquatic Organisms
; Ecosystem
; Food Chain
; Fresh Water
; Introduced Species
; Population Dynamics
英文摘要: The introduction of invasive species, which often differ functionally from the components of the recipient community, generates ecological impacts that propagate along the food web. This review aims to determine how consistent the impacts of aquatic invasions are across taxa and habitats. To that end, we present a global meta-analysis from 151 publications (733 cases), covering a wide range of invaders (primary producers, filter collectors, omnivores and predators), resident aquatic community components (macrophytes, phytoplankton, zooplankton, benthic invertebrates and fish) and habitats (rivers, lakes and estuaries). Our synthesis suggests a strong negative influence of invasive species on the abundance of aquatic communities, particularly macrophytes, zooplankton and fish. In contrast, there was no general evidence for a decrease in species diversity in invaded habitats, suggesting a time lag between rapid abundance changes and local extinctions. Invaded habitats showed increased water turbidity, nitrogen and organic matter concentration, which are related to the capacity of invaders to transform habitats and increase eutrophication. The expansion of invasive macrophytes caused the largest decrease in fish abundance, the filtering activity of filter collectors depleted planktonic communities, omnivores (including both facultative and obligate herbivores) were responsible for the greatest decline in macrophyte abundance, and benthic invertebrates were most negatively affected by the introduction of new predators. These impacts were relatively consistent across habitats and experimental approaches. Based on our results, we propose a framework of positive and negative links between invasive species at four trophic positions and the five different components of recipient communities. This framework incorporates both direct biotic interactions (predation, competition, grazing) and indirect changes to the water physicochemical conditions mediated by invaders (habitat alteration). Considering the strong trophic links that characterize aquatic ecosystems, this framework is relevant to anticipate the far-reaching consequences of biological invasions on the structure and functionality of aquatic ecosystems. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61529
Appears in Collections: 影响、适应和脆弱性
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作者单位: Doñana Biological Station (EBD-CSIC), Américo Vespucio s/n, Isla de la Cartuja, Sevilla, Spain
Recommended Citation:
Gallardo B.,Clavero M.,Sánchez M.I.,et al. Global ecological impacts of invasive species in aquatic ecosystems[J]. Global Change Biology,2016-01-01,22(1)