La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Predicting the occurrence of the quokka, Setonix brachyurus (Macropodidae : Marsupialia), in Western Australia's Northern Jarrah forest
Auteurs :	Matt W. Hayward, Auteur ; Paul J. de Tores, Auteur ; Michael J. Dillon, Auteur ; Peter B. Banks, Auteur
Type de document :	Article
Dans :	Wildlife Research (34(3) 2007)
Article en page(s) :	194-199
Langues:	Anglais
Résumé :	The quokka, Setonix brachyurus, is a medium- sized, macropodid marsupial that is endemic to south- western Australia. It has declined markedly in its distribution and abundance since the early 1930s and is listed as vulnerable under IUCN criteria. The presence or absence of quokka populations at 66 sites in the northern jarrah forest of Australia was investigated using generalised linear models ( GLM). We hypothesised that fox control and the presence of a mosaic of post- fire seral stages within Agonis linearifolia swamp vegetation were important in predicting the presence of quokkas. The number of poison meat baits delivered per hectare, the average number of years since the swamps burnt and the number of post- fire age classes within the swamps ( mosaic value) were used as explanatory variables. Two models had substantial support (Delta AIC(c) 19 years since fire) are essential for its conservation.

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