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.
It is Threatened Species Day on 7 September. If you are a threatened species in Australia, chances are you are on Indigenous-managed land, as it is the last stronghold for many species which have been lost from the wider landscape .
New research has found that habitat loss is a major concern for hundreds of Australian bird species, and south-eastern Australia has been the worst affected. The Threatened Species Recovery Hub study found that half of all native bird species have each lost almost two-thirds of their natural habitat across Victoria, parts of South Australia and New South Wales.
Kanyirninpa Jukurrpa (KJ) Rangers in the Martu Determination have collaborated with Threatened Species Recovery Hub scientists to design a monitoring program for mankarr (the greater bilby). Martu people identified priorities for the bilby monitoring program, then worked with Dr Anja Skroblin from The University of Melbourne to co-develop a monitoring method which brings together Martu knowledge and practice with Western conservation science.
I am a proud Murri from the Kamilaroi Nation in north-west New South Wales. I grew up in western Sydney on Darug land and now live in Canberra on Ngunnawal land.
A new project is aiming to increase city kids’ connections with nature, threatened species conservation and Indigenous culture. Dr Georgia Garrard from RMIT University talks about this project, which will see Wurundjeri Woi-wurrung Traditional Owners working with kids at Carlton North Primary School in Melbourne and Gunditjmara Traditional Owners working with kids at Heywood Consolidated School in western Victoria.