PhD student Billy Ross is using motion-sensing camera traps to establish baseline data on the number of northern quolls and feral cats in the Pilbara to
determine whether cat-baiting can prevent the threatened mammals’ extinction.
“Feral cats are devastating our native wildlife – they are killing millions of individuals of many wildlife species and have been implicated in a number of extinctions and declines across the continent,” says Mr Ross.
“Since their arrival alongside European settlement, they have dispersed across more than 98 per cent of the country. We need to implement broad-scale cat control initiatives to prevent further declines and to assist the recovery of those threatened species currently on the brink.”
Mr Ross is monitoring populations of the endangered northern quoll in the Pilbara, one of the last quoll habitats to remain free of cane toads – another invasive species with a devastating impact on quoll numbers. He is also measuring feral cat densities and recording the interactions between feral cats and quolls.
“Over the next three years I will investigate the impact of the Eradicat baiting program on feral cat densities and spatial ecology; the nature of interactions between cats and quolls in the Pilbara; and the ecological responses of quolls to reduced numbers of feral cats.”
The Pilbara cat-baiting program is managed by the West Australian Department of Parks and Wildlife, a TSR Hub partner, as part of a Threatened Species Offset Plan supported by Rio Tinto. The department assumes responsibility for baiting, assessing bait uptake and quoll monitoring – with the research undertaken by Mr Ross designed to complement and augment the program’s activities.
His research forms part of the TSR Hub’s Project 1.1, which aims to develop management tools to reduce the impact of feral species on threatened mammals. The project is led by Professor John Woinarski and Dr Sarah Legge.
Despite occasionally running into difficulties with impenetrable spinifex and the often-searing heat of the Pilbara, Mr Ross still manages to appreciate the beauty of his surroundings.
“I consider myself fortunate to spend so much time among the mighty mesas (hills) and gorgeous gorges of my field sites.”
Mr Ross will continue his research for the next three years – collecting and analysing data with the intention of optimising future baiting programs.
Image: Setting a trap by Billy Ross
With other concerned conservation biologists, researchers from the Threatened Species Recovery Hub have developed a ‘blueprint’ for management responses to the 2019-20 wildfires. This report can be downloaded from our website.
The Threatened Species Recovery Hub of the National Environmental Science Program expresses our sympathy to everyone whose life has been impacted by these horrific fires, and acknowledges the heartbreak of families who have lost everything, including loved ones.
Many landscapes in Australia are fire-prone, and increasingly so. Altered fire regimes can have a serious negative impact on threatened plant species and ecological communities. A Threatened Species Recovery Hub project is working to better understand the effects of different fire regimes on threatened flora in order to improve fire management strategies and conservation outcomes.
Almost a quarter of Australia’s possums and gliders are listed as threatened under Australian environmental law, and many more are showing signs of decline. Dr Rochelle Steven from The University of Queensland believes people in the community can do a lot to support conservation, especially in urban areas.
The detection and monitoring of threatened species have been a strong area of research in the National Environmental Science Program and also the two national environmental research programs which preceded it. Hub Director Professor Brendan Wintle takes a look at what we’ve been achieving and why it is so important to the conservation of Australia’s threatened species.