Abstract
It is widely recognised that the use of fixed diurnal shelters by rock-wallabies greatly affects their ecology. However, the details of how shelters and surrounding habitats are used, and how similar these characteristics are across rock-wallaby species, remain scarcely understood. The dry season home range, and use of habitats and den sites, of the short-eared rock wallaby (Petrogale brachyotis) were examined at Litchfield National Park, Northern Territory, Australia. We radio-tracked 10 individuals on foot to locate diurnal shelters, and with fixed towers to determine their nocturnal positions. P. brachyotis used a range of rock piles and outcrops for dens, and showed a strong preference for rocky habitats and adjacent woodland. On average, animals used four dens within outcrops, as well as more exposed resting sites. Individual rock-wallabies sometimes shared dens, but there appeared to be male–male intolerance of simultaneous use of dens. Mean home range in the dry season was 18.3 ha, and there was no significant difference in home-range area between sexes. Use of space by P. brachyotis was very similar to that reported for another tropical rock-wallaby species, P. assimilis, and many behavioural traits were also similar to those found in other species of Petrogale.
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