Little was known about the endangered Southern Greater Glider (Petauroides volans) population in this season’s planned burn areas prior to the areas being selected. Only one of the burn areas, Lima East-Mt Albert, had any number of glider records and most of these records came from one small part of this large 500+ ha block. One burn area, Tallangalook-Blacks Ck had not a single Greater Glider record, nor any evidence of surveys (see report for more detail).
“Planned burns are carried out with informed knowledge of the impact on plants and animals.” This is the lead statement from Forest Fire Management Victoria (FFMV) in “Looking after the environment”, yet FFMV clearly had a very limited understanding of the size and distribution of the Greater Glider population in these burn areas.
How can the risk posed by a planned burn be properly considered if information about species in those areas is wanting? In short, FFMV could not assess the risk to these animals, because they had inadequate data and they chose not to conduct additional surveys to improve that understanding. Risk management begins with risk assessment – it’s not rocket science.
So, it was left up to community groups to do the work (again!) – to improve the level of knowledge about the Greater Glider population in the planned burn areas. During January and February 2023 SOSF surveyed 13 transects across four of the planned burn areas. The transects were predominantly in Herb-rich Foothill Forest, but included small areas of Grassy Dry Forest, Riparian Forest Mosaic and Damp Forest.
Before outlining the survey results, here’s a short video of several of the Southern Greater Gliders we saw on the surveys. The video is low-res and most clips were taken 30 to 50 m from the subject (hence the shaky, blurry image). In the video you’ll see the black and the less common grey colour phase (including one glider that is almost totally black, even ventrally); two juveniles/sub-adults (smaller body size and noticeably shorter tails); a grey-phas glider feeding on red stringybark (Eucalyptus macrorhyncha) flowers and buds; most gliders sitting motionless (as usual), or climbing using an almost feline gait.Continue reading