Environmental managers will soon have a whole new understanding of how far critically endangered Leadbeater’s Possums travel each night and how their habitats
can best be managed.
This data will be provided by tiny GPS tracking harnesses, custom built by researchers at ANU and funded largely through the TSR Hub.
“This research is just now possible with the new transmitters, which are the best and smallest available. They’re only 7 grams in size but hold batteries, motion detection electronics and an antenna,” says Lachie McBurney, Senior Research Officer at Fenner School of Environment and Society.
“In the past we’ve used traditional UHF radio tracking collars and would walk through dark, wet and dense mountain ash forest with big radio antennae trying to work out which direction the animals were coming from.
“It was dangerous - Leadbeater's Possums live in really thick forest: 80-metre-tall trees, 30-metres in the mid story and really dense understory. All you’re really doing if you’re trying to follow an animal at night with a UHF collar is scaring it away from you.
“Now, like the GPS in your phone or car, we can record where the possums are at any given point in time. We’ll get around a week’s detailed data, recorded at ten minute intervals each night to preserve battery life.”
Understanding how far Leadbeater's Possums move will guide state government departments such as Parks Victoria, Victorian Department of Environment, Land, Water and Planning, Melbourne Water and Zoos Victoria in their forest management planning.
“This will influence policy and management on the ground in state forest and national parks, as well as timber production forest areas, where they live. We’ll know how much habitat needs to be protected to ensure the survival of each colony – if it needs to be altered or expanded from current protections.”
Trials are currently taking place with the new harnesses to test the electronics and accuracy, and the research will run at a number of sites over the following 6-18 months.
“We’ll most likely be analysing the data over the next year but as this is a critically endangered animal, this is the only place they exist anywhere in the world, we imagine the results will influence management decisions quite quickly.”
And how do you trap a Leadbeater's Possum?
“Peanut butter, oats and lots of honey. And hard work!”
Image: Leadbeater's Possum by Lachie McBurney, Fenner School of Environment and Society.
The Threatened Species Recovery Hub of the National Environmental Science Program expresses our sympathy to everyone whose life has been impacted by these horrific fires, and acknowledges the heartbreak of families who have lost everything, including loved ones.
Many landscapes in Australia are fire-prone, and increasingly so. Altered fire regimes can have a serious negative impact on threatened plant species and ecological communities. A Threatened Species Recovery Hub project is working to better understand the effects of different fire regimes on threatened flora in order to improve fire management strategies and conservation outcomes.
Almost a quarter of Australia’s possums and gliders are listed as threatened under Australian environmental law, and many more are showing signs of decline. Dr Rochelle Steven from The University of Queensland believes people in the community can do a lot to support conservation, especially in urban areas.
The detection and monitoring of threatened species have been a strong area of research in the National Environmental Science Program and also the two national environmental research programs which preceded it. Hub Director Professor Brendan Wintle takes a look at what we’ve been achieving and why it is so important to the conservation of Australia’s threatened species.
In 2009, the Christmas Island blue-tailed skink and Lister’s gecko were headed for imminent extinction. Parks Australia acted quickly to collect remaining wild individuals in order to establish captive breeding programs on Christmas Island and at Taronga Zoo, Sydney, which have been highly successful. A Threatened Species Recovery Hub project team is working closely with Parks Australia to help secure a future for the two lizards beyond captivity.