Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/64445
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Type: Journal article
Title: The island biogeography of exotic bird species
Author: Blackburn, T.
Cassey, P.
Lockwood, J.
Citation: Global Ecology and Biogeography, 2008; 17(2):246-251
Publisher: Blackwell Publishing Ltd.
Issue Date: 2008
ISSN: 1466-822X
1466-8238
Statement of
Responsibility: 
Tim M. Blackburn, Phillip Cassey and Julie. L. Lockwood
Abstract: Aim: A recent upsurge of interest in the island biogeography of exotic species has followed from the argument that they may provide valuable information on the natural processes structuring island biotas. Here, we use data on the occurrence of exotic bird species across oceanic islands worldwide to demonstrate an alternative and previously untested hypothesis that these distributional patterns are a simple consequence of where humans have released such species, and hence of the number of species released. Location: Islands around the world. Methods: Statistical analysis of published information on the numbers of exotic bird species introduced to, and established on, islands around the world. Results: Established exotic birds showed very similar species–area relationships to native species, but different species–isolation relationships. However, in both cases the relationship for established exotics simply mimicked that for the number of exotic bird species introduced. Exotic bird introductions scaled positively with human population size and island isolation, and islands that had seen more native species extinctions had had more exotic species released. Main conclusion: The island biogeography of exotic birds is primarily a consequence of human, rather than natural, processes.
Keywords: Establishment
introduction
islands
null model
species–area
species–isolation
Rights: © 2007 The Authors. Journal compilation © 2007 Blackwell Publishing Ltd.
DOI: 10.1111/j.1466-8238.2007.00361.x
Published version: http://dx.doi.org/10.1111/j.1466-8238.2007.00361.x
Appears in Collections:Aurora harvest 5
Earth and Environmental Sciences publications
Environment Institute Leaders publications

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