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.
Northern Australia’s mammals have suffered catastrophic declines over the last 30 years. A major new study has found that protecting and recovering habitat by improving fire management and reducing feral cattle, horses and buffaloes is the best approach to address the crisis.
Fire is a complex, important and pervasive ingredient in the ecology of Australia. It destroys life but brings renewal. Professor John Woinarski of Charles Darwin University discusses the catastrophic losses of the 2019–20 fires, and how we can move on from mourning to action that can limit such future devastation.
Clare is a Biodiversity Field Officer with the Australian National University’s Sustainable Farms project. She tells us how she came to this role after an early life on farms in the UK, some bullet-dodging and globe-trotting.
The box gum grassy woodlands once stretched across south-eastern Australia, but have been reduced to less than 5% of their former extent. Holly Vuong speaks with Ann Kristin Raymer and Heather Keith of The Australian National University (ANU) about their new research, part of ANU’s Sustainable Farms, on developing ecosystem accounts for the woodlands to understand why this threatened ecological community is so valuable.
To help land managers get the best outcomes from their fox control investments, a collaborative project funded by the Threatened Species Recovery Hub and Victorian government agencies has developed a new fox population modelling tool. Dr Bronwyn Hradsky of The University of Melbourne led the project and is now working with agencies to apply the tool across Victoria. Here we discuss FoxNet and its applications.