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Surveys for arboreal mammals, Long-Footed Potoroo and Spiny ...

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DSE Survey Program<br />

Greater Glider <strong>and</strong> Yellow-bellied Glider (<strong>and</strong> other nocturnal<br />

vertebrates)<br />

DSE conducted surveys on the nights of 21 January, 5 February <strong>and</strong> 12 March.<br />

Personnel involved were Tony Mitchell (all surveys), Stephen Henry (all surveys),<br />

Lucy Clausen (5 February) <strong>and</strong> Jonathon Ricciardello (5 February). Barry Vaughan<br />

(VicForest Regional Manager, East Gippsl<strong>and</strong>) accompanied the survey team on 5<br />

February.<br />

Methods<br />

The surveyors operated in pairs. The selected transects were at least one km<br />

long. Each transect was walked slowly by the surveyors <strong>and</strong> the trees surveyed<br />

with 50 watt portable spotlights. Animals were located by sighting or sound<br />

(either call or movement). Both surveyors checked the identity of a sighting or<br />

call. Locations were recorded by GPS <strong>and</strong> in a notebook.<br />

Greater Gliders are fairly sedentary <strong>and</strong> are generally readily detected by their<br />

bright eyeshine in a spotlight.<br />

Yellow-bellied Gliders are much more difficult to see but have loud calls. However<br />

they are very mobile <strong>and</strong> it can be difficult to distinguish different individuals<br />

based on calls unless the calls are detected more or less simultaneously. Thus<br />

counts of individuals were conservative.<br />

Other species detected were also recorded.<br />

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