Recently, I was lucky enough to talk about my PhD research on feral cats on Radio National’s Science Show, which is presented by Robyn Williams on Saturdays between 12 and 1pm. I discuss a quantitative review of feral cat diet in Australia that I conducted with a group of colleagues. We found that cats consume 400 vertebrate species in Australia, including 16 globally threatened taxa. You can listen to the radio audio here and read more about the study here.
Australia is home to more than 300 species of land dwelling mammals. 85% are found nowhere else in the world. Since Europeans arrived in Australia, just over 200 years ago, 30 mammals have become extinct. This is the highest rate of mammal extinction anywhere in the world. The main culprit for the decline is predation by the introduced red fox and feral cat. Feral cats have recently been named the biggest threat to Australian native mammals. They are eating their way through our wildlife. Tim Doherty is studying the ecology of feral cats in Charles Darwin Reserve, 450km NE Perth. Dissection of cat faeces and stomach contents reveals they predate on almost anything. Tim hopes to collect information which will be useful to land managers as they attempt to control feral cats and protect native fauna from these introduced killing machines.