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La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Palatability and efficacy of rodent baits for eradicating house mice (Mus musculus) from Gough Island, Tristan da Cunha
Auteurs :	R. J. Cuthbert, Auteur ; P. Visser, Auteur ; H. Louw, Auteur ; P. G. Ryan, Auteur
Type de document :	Article
Dans :	Wildlife Research (38(3) 2011)
Article en page(s) :	196-203
Langues:	Anglais
Résumé :	Context. Introduced house mice (Mus musculus) are a serious predator of seabird chicks at Gough Island, resulting in declining populations of several threatened species. This has prompted the preparation of plans to eradicate mice from Gough and other islands. However, relatively little is known about the palatability and efficacy of rodent baits for house mice, as most studies have focussed on rats (Rattus spp.). Aims. The study's aim was to test the palatability of non-toxic forms of two commercially available rodent pellet bait formulations (Pestoff (R) 20R and Final (R)) and a new pellet bait formulated specifically for mouse control (Pestoff (R) 20M) to house mice on Gough Island. We also tested the efficacy of toxic Pestoff 20R and Final pellets containing 20 and 25 ppm of the anticoagulant toxin brodifacoum. Methods. Five trials with 50 mice housed in individual cages and kept at ambient temperature and light cycles, were undertaken during the year. Palatability of bait pellets was measured over five days and compared with a non-toxic control food (standard 'rodent pellets' sourced from a pet food supplier). Toxic bait trials were run for 25 days with bait administered at 1, 2 and 10 g for a 24-h period and at 20 g per day for

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