DOI: 10.1111/1365-2656.13136
论文题名: Urbanization reshapes a food web
作者: Start D. ; Barbour M.A. ; Bonner C.
刊名: Journal of Animal Ecology
ISSN: 218790
出版年: 2020
卷: 89, 期: 3 语种: 英语
英文关键词: Eurosta
; global change
; interaction networks
; species interactions
Scopus关键词: Eurosta
英文摘要: Cities represent humanity's most intense impact on our planet, with more than half of all humans now residing in urban areas. Indeed, urbanization has well-understood impacts on both individual species and general patterns of biodiversity. However, species do not exist in isolation, but are instead members of complex interaction networks that shape patterns of diversity and influence ecosystem services. Despite the importance of species interaction for creating patterns of diversity, we do not understand how urbanization alters these interactions. Here, we investigate how an interaction network (food web) is reshaped by urbanization. We show that, consistent with theory, cities tend to support less diverse ecological communities, and rare species that interact with few species are particularly sensitive to urbanization. As a result, remnant urban food webs tend to have more interactions per species and greater connectance, creating more integrated interaction networks. We discuss the implications of this food web reshaping for ecological stability, eco-evolutionary dynamics, and the joining of interaction networks and conservation planning. The role of cities in reshaping interaction networks provides an interesting study of food web (dis)assembly, while also shedding light on new approaches to applied conservation issues. © 2019 The Authors. Journal of Animal Ecology © 2019 British Ecological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158963
Appears in Collections: 气候变化与战略
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作者单位: Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, ON, Canada; Department of Evolutionary Biology & Environmental Studies, University of Zurich, Zurich, Switzerland
Recommended Citation:
Start D.,Barbour M.A.,Bonner C.. Urbanization reshapes a food web[J]. Journal of Animal Ecology,2020-01-01,89(3)