Dr Diana Fisher has dedicated two decades to the study of mammals, including threatened species of carnivorous marsupials, wallabies and bats that most people know little about.
Dr Fisher, however, loves working with all mammals, including native mice and bats.
“When I studied the endangered monkey-faced bat in the Solomon Islands, I found that although they have ferocious-looking teeth and strong jaws able to crack nuts, they are actually docile and sweet-natured. Local people could pull them from tree hollows without danger of being bitten ,” says Dr Fisher.
Dr Fisher observed the same vulnerability in the bridled nailtail wallaby (the focus of her PhD), a small, endangered macropod that survives in the wild at one site in central Queensland, where it was rediscovered in 1973.
“These little wallabies are naturally tame and dopey. They leave their young hiding alone for long periods and tend to freeze flat on the ground when they are frightened. This makes them vulnerable, particularly to the threats posed by feral predators such as cats and foxes. Bilbies are similarly docile and naïve. Refuge from predators is particularly important for these mammals, but somewhere safe to ride out droughts is also likely to be crucial.”
Bridled nailtails and bilbies are two of many threatened species she is working to protect as a leader of Project 4.4, which aims to map out important refuges from different types of threats to Australian fauna.
She will also lend her expertise to Project 1.1, which will focus on reducing the impact of introduced predators, particularly cats. Project participants will test methods to control cats, and assess the benefits for threatened prey populations in Queensland.
Together with her affinity for the smallest and most vulnerable mammals, Dr Fisher brings her keen eye for detail and data to the field - particularly useful considering the size of her subjects. She credits part of her approach to former honours supervisor and collaborator in Project 4.4, Professor Chris Dickman.
“Some of the best research advice ever given to me came from Chris. He told me ‘When you’re out in the field, collect as much as possible. You never know what you’ll need later on.’”
Perhaps a similar sentiment applies to the work of the TSR Hub in general, protecting the plant and animal species that people need in order to prosper, even if they don’t yet know it.
Professor John Woinarski of Charles Darwin University discusses the importance of averting extinctions of less charismatic animals.
The 2019–20 wildfires have severely impacted animals of all major species groups. Here, national experts on mammals, birds, reptiles, frogs and freshwater fish and crayfish present some of the key challenges for each group and how these will influence management and research priorities in the aftermath of the fires.
Cultural fire management is the way that Indigenous people have used fire to care for Country for thousands of years, and it continues today. The devastation wreaked by the 2019–20 bushfires across millions of hectares was a wake-up call for Australia and the world. Oliver Costello from the Firesticks Alliance explains how the fires demonstrated the need to listen to and care for Country.
Australia has one of the highest rates of plant endemism of any country globally. After the catastrophic fire season of 2019–20, Dr Rachael Gallagher and Professor David Keith are leading two teams to find out which species and ecological communities are most in need of immediate recovery.
The 2019–20 bushfires burnt over 12 million hectares of south-eastern and south-western Australia, causing abrupt losses of biodiversity at a scale never seen before. Over a billion animals were estimated to have died, but the figure is likely much higher. The Australian Government’s Wildlife and Threatened Species Bushfire Recovery Expert Panel is guiding the work of prioritising species and ecological communities for emergency interventions and determining what those actions should be. Hub Deputy Director and Expert Panel member Professor Sarah Legge takes us though the hows and whys of this prioritisation, and some of its challenges.