UNSPECIFIED. (2002) Disease in endangered metapopulations: the importance of alternative hosts. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES, 269 (1492). pp. 671-676. ISSN 0962-8452

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Abstract

Conventional applications of metapopulation theory have suggested that increasing migration between patches is usually good for conservation. A recent analysis by Hess has pointed out a possible exception to this: when infectious disease is present, migration may promote disease spread and therefore increase local extinction. We extend Hess's model to discuss this problem: when infections have spilled over from more abundant alternative hosts. This is often the case for species of conservation concern, and we find that Hess's conclusions must be substantially modified. We use deterministic analytic and stochastic numerical approaches to show that movement between patches will rarely have a negative impact, even when the probability of external infection is low.

Item Type:	Journal Article
Subjects:	Q Science > QH Natural history > QH301 Biology
Journal or Publication Title:	PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
Publisher:	ROYAL SOC LONDON
ISSN:	0962-8452
Date:	7 April 2002
Volume:	269
Number:	1492
Number of Pages:	6
Page Range:	pp. 671-676
Identification Number:	10.1098/rspb.2001.1667
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/11026

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