Causes of exotic bird establishment across oceanic islands

Cassey, P., Blackburn, T.M., Duncan, R.P. and Gaston, K.J. (2005) Causes of exotic bird establishment across oceanic islands. Proceedings of the Royal Society B: Biological Sciences, 272 (1576). pp. 2059-2063. ISSN 1471-2954

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Abstract

The probability that exotic species will successfully establish viable populations varies between regions, for reasons that are currently unknown. Here, we use data for exotic bird introductions to 41 oceanic islands and archipelagos around the globe to test five hypotheses for this variation: the effects of introduction effort, competition, predation, human disturbance and habitat diversity (island biogeography). Our analyses demonstrate the primary importance of introduction effort for avian establishment success across regions, in concordance with previous analyses within regions. However, they also reveal a strong negative interaction across regions between establishment success and predation; exotic birds are more likely to fail on islands with species-rich mammalian predator assemblages.

Item Type:	Article
Copyright, Publisher and Additional Information:	Copyright © Royal Society 2005. Reproduced in accordance with the publisher's self-archiving policy.
Keywords:	birds, introduction effort, invasions, islands, mammal predators
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > School of Biological Sciences (Sheffield) > Department of Animal and Plant Sciences (Sheffield)
Depositing User:	Repository Officer
Date Deposited:	28 Jun 2006
Last Modified:	08 Feb 2013 16:49
Published Version:	http://www.journals.royalsoc.ac.uk/openurl.asp?gen...
Status:	Published
Publisher:	The Royal Society
Refereed:	Yes
Identification Number:	10.1098/rspb.2005.3193
URI:	http://eprints.whiterose.ac.uk/id/eprint/1411

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