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Spatio-temporal covariation in abundance between the cyclic common vole Microtus arvalis and other small mammal prey species
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Carslake, David, Cornulier, Thomas, Inchausti, Pablo and Bretagnolle, Vincent (2010) Spatio-temporal covariation in abundance between the cyclic common vole Microtus arvalis and other small mammal prey species. Ecography, Volume 34 (Number 2). pp. 327-335. doi:10.1111/j.1600-0587.2010.06334.x
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Official URL: http://dx.doi.org/10.1111/j.1600-0587.2010.06334.x
Abstract
Populations of the common vole Microtus arvalis in mid-western France show cyclic dynamics with a three-year period. Studies of cyclic vole populations in Fennoscandia have often found inter-specific synchrony between the voles and other small mammals which share the voles' predators. Although predators are central to the favoured mechanism to explain Fennoscandian vole cycles and the spatial variation of small mammal populations, their role in vole cycles elsewhere, including France, is less clear. Establishing whether alternative prey species in France cycle in parallel with voles as they do in Fennoscandia is thus an important step towards understanding the generality of predators' influence on cyclic vole populations. We applied spatial and temporal autocorrelation and cross-correlation methods to French populations of M. arvalis and two sympatric non-cyclic small mammal species, Apodemus sylvaticus and Crocidura russula. Patterns of time-lagged cross-correlation between the abundance of M. arvalis and the other two species suggested synchrony in their dynamics beyond that expected of stochastic environmental variation, and indicated a weak three-year cycle in A. sylvaticus and C. russula that was in phase with that of M. arvalis. We interpret the synchrony between these species as the effect of shared predators and environmental stochasticity. Abundance within species showed weak spatial autocorrelation in June at scales consistent with dispersal being the mechanism responsible, but a more general lack of spatial structure within and between species was consistent with the strong spatial synchrony at regional scales often found in fluctuations of small mammal abundance.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QL Zoology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
| Library of Congress Subject Headings (LCSH): | Microtus arvalis, Animal population density -- Statistical methods, Variation (Biology) -- Statistical methods, Life cycles (Biology) -- Statistical methods | ||||
| Journal or Publication Title: | Ecography | ||||
| Publisher: | Wiley-Blackwell Publishing, Inc. | ||||
| ISSN: | 0906-7590 | ||||
| Official Date: | 2010 | ||||
| Dates: |
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| Volume: | Volume 34 | ||||
| Number: | Number 2 | ||||
| Page Range: | pp. 327-335 | ||||
| DOI: | 10.1111/j.1600-0587.2010.06334.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Funder: | Institut français de la biodiversite, France. Ministère de l'écologie et du développement durable, Poitou-Charentes (France). Direction régionale de l'environnement, Centre national de la recherche scientifique (France) (CNRS), European Science Foundation (ESF), France. Agence nationale de la recherche (ANR) |
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