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Invasive species management on Islands

Updated: Mar 30


Image: Rosie Hohnen


Contract Researcher

Kangaroo Island Landscape Board, Christmas Island National Parks, Lord Howe Island Board

2020-2021


Globally, many island species are threatened due to the impacts of invasive feral cats (Felis catus) and rats (Rattus rattus). In Australia, a number of cat and rat eradication projects are underway to conserve threatened species on islands. I worked with local teams to support a series of offshore island invasive species eradication projects, through designing more effective monitoring methods and testing cat control techniques. I worked for the Kangaroo Island Landscape Board testing the efficacy of a feral cat bait 'Curiosity' as a control method for the invasive feral cat population, using camera trapping and GPS collaring techniques. I worked on for Christmas Island National Parks, refining their camera trapping techniques to increase cat detection probability in different habitat types. I also worked with the Lord Howe Island Board supporting the design a of a camera trapping array, involving AI image processing, to monitor rat incisions from boats, post-rat eradication on the island.


Images: Rosie Hohnen


From L-R: Cockatoos in the firescar on western Kangaroo Island, a GPS collared feral cat, and a Lord Howe Island woodhen (Gallirallus sylvestris).

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