Non-preferred habitat increases the activity area of the endangered northern quoll (Dasyurus hallucatus) in a semi-arid landscape
M. A. Cowan A B * , H. A. Moore C , B. A. Hradsky D , C. J. Jolly A E , J. A. Dunlop A B F , M. L. Wysong G , L. Hernandez-Santin
H , R. A. Davis I , D. O. Fisher J , D. R. Michael K , J. M. Turner L , L. A. Gibson C M , C. G. Knuckey N , M. Henderson I and D. G. Nimmo A
+ Author Affiliations
- Author Affiliations
A School of Agricultural, Environmental and Veterinary Sciences, Gulbali Institute, Charles Sturt University, 386 Elizabeth Mitchell Drive, Thurgoona, NSW 2640, Australia.
B School of Agriculture and Environment, University of Western Australia, Crawley, WA 6009, Australia.
C Department of Biodiversity, Conservation and Attractions, 17 Dick Perry Avenue, Kensington, WA 6151, Australia.
D School of Ecosystem and Forest Sciences, University of Melbourne, Parkville, Vic. 3010, Australia.
E School of Natural Sciences, Macquarie University, Balaclava Road, Macquarie Park, NSW 2109, Australia
F Western Australian Feral Cat Working Group, 58 Sutton Street, Mandurah, WA 6210, Australia.
G Research Institute of Environment and Livelihoods, Charles Darwin University, Casuarina, NT 0810, Australia.
H Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, University of Queensland, St Lucia, Qld. 4067, Australia.
I School of Science, Edith Cowan University, 100 Joondalup Drive, Joondalup, WA 6027, Australia.
J School of Biological Sciences, University of Queensland, St Lucia, Qld 4072, Australia.
K Gulbali Institute for Agriculture, Water and Environment, Charles Sturt University, 386 Elizabeth Mitchell Drive, Thurgoona, NSW 2640, Australia.
L School of Health and Life Sciences, Institute of Biomedical and Environmental Health Research, University of the West of Scotland, Stephenson Place, South Lanarkshire, G72 0LH, UK.
M School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia.
N Biologic Environmental Survey, 24 Wickham Street, East Perth, WA 6004, Australia.
Australian Mammalogy 45(2) 138-150 https://doi.org/10.1071/AM22006
Submitted: 26 January 2022 Accepted: 5 September 2022 Published: 28 September 2022
© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of the Australian Mammal Society.
Abstract
Animal conservation requires a sound understanding of movement ecology and habitat selection. A key component of this is identifying habitats that animals actively seek or avoid. We quantified habitat selection and investigated the drivers of variability in the short-term activity area of a small, endangered mesopredator, the northern quoll (Dasyurus hallucatus), in the Pilbara region of Western Australia. We collated, standardised, and analysed 14 northern quoll GPS tracking events from four studies conducted between 2014 and 2018. Northern quolls selected activity areas in locations that were more topographically rugged than the broader landscape, characterised by a higher percentage cover of rocky habitat and riverbed, and a lower percentage cover of spinifex sandplain. The size of their activity area also increased with higher percentage cover of non-preferred spinifex sandplain. Therefore, the destruction of habitats preferred by northern quolls – such as mining of rocky habitat – and introduction of structurally simple habitat like spinifex sandplain, is likely to negatively impact resource availability and lead to altered movement patterns that could decrease survival. Future conservation planning should place emphasis on the protection of rugged rocky habitat for northern quolls, as well as efficient movement pathways between patches of this critical habitat.
Keywords: activity area, GPS, habitat use, mesopredator, movement ecology, northern quoll, Pilbara, riverbed, rocky habitat, spinifex sandplain.
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