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Article << Previous     |         Contents Vol 60(2)

Scat happens: spatiotemporal fluctuation in dingo scat collection rates

Benjamin L. Allen

The University of Queensland, School of Agriculture and Food Sciences, Gatton, Qld 4343, Australia. Current address: Vertebrate Pest Research Unit, NSW Department of Primary Industries, Broken Hill, NSW 2880, Australia. Email: benjamin.allen@dpi.nsw.gov.au

Australian Journal of Zoology 60(2) 137-140 http://dx.doi.org/10.1071/ZO12038
Submitted: 30 August 2011  Accepted: 6 August 2012   Published: 17 September 2012


 
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Abstract

The number of dingo (Canis lupus dingo and hybrids) scats collected from an area has been used as a measure of pack stability in order to make inferences about dingo pack structures and function. In doing so, some studies sampling different sites at different times/seasons have been forced to assume that scat collection rates vary little throughout the year in order to attribute observed site/treatment differences to the effect of interventions (e.g. lethal control), rather than natural spatiotemporal variation in scat densities. In this study, 4112 dingo scats systematically collected from adjacent dingo-baited and unbaited areas at three arid-zone sites on a regular basis over 2–4 years are used to test this assumption. Scat collection rates varied between treatments, sites and surveys, with substantial differences occurring within a few weeks or months. Similar temporal trends between treatments at each site demonstrated that scat collection rates fluctuated independently of dingo control. It was concluded that observations of different scat collection rates between different sites sampled at different times may simply reflect normal spatiotemporal variability in scat densities, which may not reflect absolute dingo abundance.



Additional keywords: Canis lupus dingo, defaecation, lethal control, pack structure, population indexing, scent-marking, social stability.


References

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