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23 July 2020 Understanding Australia’s national feral cat control effort
Georgia E. Garrard, Alexander M. Kusmanoff, Richard Faulkner, Chathuri L. Samarasekara, Ascelin Gordon, Alice Johnstone, Isaac R. Peterson, Nooshin Torabi, Yan Wang, Sarah A. Bekessy
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Abstract

Context. Feral cats (Felis catus) pose a significant threat to Australia’s native species and feral cat control is, therefore, an important component of threatened species management and policy. Australia’s Threatened Species Strategy articulates defined targets for feral cat control. Yet, currently, little is known about who is engaged in feral cat control in Australia, what motivates them, and at what rate they are removing feral cats from the environment.

Aims. We aim to document who is engaging in feral cat control in Australia, how many cats they remove and to estimate the number of feral cats killed in a single year. Furthermore, we seek to better understand attitudes towards feral cat control in Australia.

Methods. We used a mixed methods approach combining quantitative and qualitative techniques. Feral cat control data were obtained from existing data repositories and via surveys targeting relevant organisations and individuals. A bounded national estimate of the number of feral cats killed was produced by combining estimates obtained from data repositories and surveys with modelled predictions for key audience segments. Attitudes towards feral cat control were assessed by exploring qualitative responses to relevant survey questions.

Key results. We received information on feral cat control from three central repositories, 134 organisations and 2618 individuals, together removing more than 35 000 feral cats per year. When including projections to national populations of key groups, the estimated number of feral cats removed from the environment in the 2017–2018 financial year was 316 030 (95% CI: 297 742–334 318).

Conclusions. Individuals and organisations make a significant, and largely unrecorded, contribution to feral cat control. Among individuals, there is a strong awareness of the impact of feral cats on Australia’s biodiversity. Opposition to feral cat control focussed largely on ethical concerns and doubts about its efficacy.

Implications. There is significant interest in, and commitment to, feral cat control among some groups of Australian society, beyond the traditional conservation community. Yet more information is needed about control methods and their effectiveness to better understand how these efforts are linked to threatened species outcomes.

© CSIRO 2020
Georgia E. Garrard, Alexander M. Kusmanoff, Richard Faulkner, Chathuri L. Samarasekara, Ascelin Gordon, Alice Johnstone, Isaac R. Peterson, Nooshin Torabi, Yan Wang, and Sarah A. Bekessy "Understanding Australia’s national feral cat control effort," Wildlife Research 47(7-8), 698-708, (23 July 2020). https://doi.org/10.1071/WR19216
Received: 1 November 2019; Accepted: 4 June 2020; Published: 23 July 2020
KEYWORDS
biodiversity
invasive species
management strategies
pest control
social dimensions
threatened species
wildlife management
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