期刊
AFRICAN JOURNAL OF ECOLOGY
卷 52, 期 1, 页码 69-76出版社
WILEY
DOI: 10.1111/aje.12092
关键词
African wild dog; anthropogenic mortality; conservation; hunting success; Lycaon pictus; prey density
类别
资金
- Stichting PDC
- Painted Dog Conservation
- CNRS HERD Project
- PCP Research Platform
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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