La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Predicting mammalian target-specificity of the M-44 ejector in south-eastern Australia
Auteurs :	C. A. Marks, Auteur ; R. Wilson, Auteur
Type de document :	Article
Dans :	Wildlife Research (32(2) 2005)
Article en page(s) :	151-156
Langues:	Anglais
Résumé :	Meat-based baits are currently used for the control of the exotic red fox (Vulpes vulpes) in south-eastern Australia. Thirty-one quadrupedal endemic mammals are considered to be potentially bait consuming (PBC) and may be exposed to bait toxicants. Mechanical toxicant ejectors may be more selective if some PBC species cannot apply enough upward force to trigger them. A simple relationship between body mass and pulling force was sought to enable estimates of ejector specificity to be made. The pulling force applied to ejector baits was measured for the red fox and six endemic mammals. The relationship between body mass and pulling force was highly significant (P3 kg to trigger the device, while eliminating exposure of 26 of the 31 PBC mammals. Appropriate toxicant selection and dose rates may ensure that four out of five susceptible mammals are less likely to be affected by unwanted exposure.

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