Summary
ABSTRACT We have investigated the impact of the unprecedented drought, heatwaves and fires of 2019–20 on a threatened arboreal marsupial, the Greater Glider (Petauroides volans), in the Greater Blue Mountains World Heritage Area, an area of over one million hectares. The study involved multiple post-fire surveys in 2020 and 2021 of 16 transects (eight burnt and eight unburnt) for which we had pre-2019 data on Greater Glider numbers. We were unable to find any gliders on two transects burnt at high to extreme severity (100% of eucalypt foliage killed in the canopy and understorey) but Greater Gliders were still present on all six transects burnt at low to moderate severity (44–77% of eucalypt foliage killed), although in significantly lower numbers (mean decline of 43% per transect). Greate
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