 He is a co-author of "The Action Plan for Australian Mammals 2012".In February 2019, speaking about the confirmed extinction of the Bramble Cay melomys, considered the only mammal endemic to the Great Barrier Reef and the first documented extinction of a mammal species due to climate change, he said that its loss was foreseeable and preventable.It had been known for years that its position was precarious, and he believed that its loss is at least partly due to under-funding for conservation programs and the fact that it was not an animal charismatic enough to garner much public attention.