Foraging costs, hunting success and its implications for African wild dog (Lycaon pictus) conservation inside and outside a protected area - Université Claude Bernard Lyon 1 Accéder directement au contenu
Article Dans Une Revue African Journal of Ecology Année : 2014

Foraging costs, hunting success and its implications for African wild dog (Lycaon pictus) conservation inside and outside a protected area

Résumé

When selecting a habitat, animals utilize habitat in which they yield the highest rate of energy. Differences in foraging costs and hunting success are therefore likely to affect habitat choice. In a previous study, we showed that African wild dog (Lycaon pictus) packs with territories inside Hwange National Park (HNP), over the course of several years, moved their territories into the buffer zone outside HNP, where reproductive success was higher but anthropogenic mortality exceeded natality. In this study, based on long-term radio-telemetry data from 22 African wild dog packs, we analysed whether differences in foraging costs and hunting success could have contributed to this territorial drift. Taking seasonality and pack size into account, we determined foraging costs (foraging distance and chase distance) and hunting success (successful or failed chase) inside and outside HNP. Although we observed no difference in foraging costs, hunting success was higher outside HNP, which is likely to have contributed to the territorial drift into the buffer zone outside the protected area. This study shows the importance of taking factors affecting hunting success into account in the conservation strategy of African wild dogs.
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hal-02045541 , version 1 (22-08-2023)

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Esther van der Meer, Gregory S.A. Rasmussen, Justice Muvengwi, Hervé Fritz. Foraging costs, hunting success and its implications for African wild dog (Lycaon pictus) conservation inside and outside a protected area. African Journal of Ecology, 2014, 52 (1), pp.69-76. ⟨10.1111/aje.12092⟩. ⟨hal-02045541⟩
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