Home range and activity patterns measured with GPS collars in spotted-tailed quolls
Gerhard Körtner A B F , Nerida Holznagel C , Peter J. S. Fleming D E and Guy Ballard A E
+ Author Affiliations
- Author Affiliations
A Vertebrate Pest Research Unit, NSW Department of Primary Industries, Armidale, NSW 2350, Australia.
B Behaviours and Physiological Ecology, Zoology, University of New England, Armidale, NSW 2351, Australia.
C NSW National Parks and Wildlife Service, Glen Innes, NSW 2370, Australia.
D Vertebrate Pest Research Unit, NSW Department of Primary Industries, Orange, NSW 2800, Australia.
E School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.
F Corresponding author. Email: gkoertne@une.edu.au
Australian Journal of Zoology 63(6) 424-431 https://doi.org/10.1071/ZO16002
Submitted: 30 July 2015 Accepted: 24 January 2016 Published: 10 February 2016
Abstract
The spotted-tailed quoll (Dasyurus maculatus) is the largest marsupial carnivore on mainland Australia. It usually occurs at relatively low population densities and its cryptic nature makes it exceedingly difficult to observe in its natural habitat. On the mainland the species is also listed as nationally endangered and more information is needed to direct any meaningful conservation effort. In this study we aimed to elucidate quolls’ spatial requirements and activity patterns using GPS collars on 10 males and 4 females. Quolls were predominantly nocturnal but some individuals showed pronounced daytime activity. There was no apparent seasonal shift in the timing of activity. The movement of quolls appeared to be confined to home ranges that were relatively large for predators of their size. Furthermore, males used home ranges about three times as large as that of the smaller females. There appeared to be some spatial segregation between not only females, which have been considered territorial, but also males. Overall, it is likely that the larger areas used by males is partly caused by the sexual dimorphism in body mass that entails differences in prey requirements and spectrum, but probably is also a function of a promiscuous mating system. All of these could explain the observed more unidirectional movement and larger distances travelled per day by males.
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