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Spatially extended host-parasite interactions: the role of recovery and immunity
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Webb, Steven D., Keeling, Matthew James and Boots, Mike (2007) Spatially extended host-parasite interactions: the role of recovery and immunity. Theoretical Population Biology, Vol.71 (No.2). pp. 251-266. doi:10.1016/j.tpb.2006.07.010 ISSN 0040-5809.
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Official URL: http://dx.doi.org/10.1016/j.tpb.2006.07.010
Abstract
Techniques for determining the long-term dynamics of host-parasite systems are well established for mixed populations. The field of spatial modelling in ecology is more recent but a number of key advances have been made. In this paper, we use state-of-the-art approximation techniques, supported by simulations, in order to investigate the role of recovery and immunity in spatially structured populations. Our approach is to use correlation models, namely pair-wise models, to capture the spatial relationships of contacts and interactions between individuals. We use the pair-wise framework to address a number of key ecological questions; including, the persistence of endemic limit cycles and regions of parasite-driven extinction-features which differentiate spatial from non-spatial models-and the effects on invasion fitness. We demonstrate a loss of limit cycle behaviour, in addition to an increase in the critical transmissibility and extinction thresholds, when recovery is included. This approach allows for a better analytical understanding of the dynamics of host-parasite interactions and demonstrates the importance of recovery and immunity in local interactions. (c) 2006 Elsevier Inc. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QH Natural history > QH426 Genetics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Biological Sciences ( -2010) Faculty of Science, Engineering and Medicine > Science > Mathematics |
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Journal or Publication Title: | Theoretical Population Biology | ||||
Publisher: | Academic Press | ||||
ISSN: | 0040-5809 | ||||
Official Date: | March 2007 | ||||
Dates: |
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Volume: | Vol.71 | ||||
Number: | No.2 | ||||
Number of Pages: | 16 | ||||
Page Range: | pp. 251-266 | ||||
DOI: | 10.1016/j.tpb.2006.07.010 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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