The contribution of patch topology and demographic parameters to PVA predictions: the case of the European tree frog

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Etat: Public
Version: de l'auteur⸱e
ID Serval
serval:BIB_64AFFA9A3F47
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The contribution of patch topology and demographic parameters to PVA predictions: the case of the European tree frog
Périodique
Population Ecology
Auteur⸱e⸱s
Pellet J., Maze G., Perrin N.
ISSN
1438-3896
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
48
Numéro
4
Pages
353-361
Langue
anglais
Notes
Proceedings Paper : International Symposium on Biological Control of Aphids and Coccids
Tsuruoka, JAPAN, SEP 25-29, 2005
Résumé
Population viability analyses (PVA) are increasingly used in metapopulation conservation plans. Two major types of models are commonly used to assess vulnerability and to rank management options: population-based stochastic simulation models (PSM such as RAMAS or VORTEX) and stochastic patch occupancy models (SPOM). While the first set of models relies on explicit intrapatch dynamics and interpatch dispersal to predict population levels in space and time, the latter is based on spatially explicit metapopulation theory where the probability of patch occupation is predicted given the patch area and isolation (patch topology). We applied both approaches to a European tree frog (Hyla arborea) metapopulation in western Switzerland in order to evaluate the concordances of both models and their applications to conservation. Although some quantitative discrepancies appeared in terms of network occupancy and equilibrium population size, the two approaches were largely concordant regarding the ranking of patch values and sensitivities to parameters, which is encouraging given the differences in the underlying paradigms and input data.
Mots-clé
population viability analyses, RAMAS, stochastic patch occupancy models, extinction, colonization, dispersal distance, Hyla arborea, patch occupancy, population size, Switzerland
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Création de la notice
24/01/2008 18:54
Dernière modification de la notice
20/08/2019 15:20
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