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Tree use and home range of the koala at Blair Athol, Central Queensland

journal contribution
posted on 06.12.2017, 00:00 by William Ellis, F Carrick, M Hasegawa, Alistair Melzer
Free-ranging koalas (Phascolarctos cinereus) were monitored by means of radio-relocation in the area of Blair Athol Coal Mine and surrounding properties. Daytime tree use, home range and diet of these koalas was determined in spring and autumn, as was the leaf moisture composition of potential fodder species. Koalas used on average 93 (male koalas) and 56 (female koalas) trees during the period of observation, occupying home ranges of 135 and 101 ha respectively. Mean sightings per tree were 1.19 for both males and females and home-range sizes were not significantly different between sexes or seasons. Koalas were observed returning to previously used daytime roosting trees infrequently (<12%). Although koalas were observed roosting in trees of the species that they ate, proportional species representation in the diet of these koalas during spring and autumn did not accurately reflect concurrent observations of their daytime tree-roosing behaviour. Koalas were observed to utilise non-fodder species for daytime roosting, and patterns of daytime tree use and diet sleection varied between individuals inhabiting adjacent communities within the site. Leaf moisture of tree species represented in koala diets was greater in autumn than spring.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

29

Issue

3

Start Page

303

End Page

312

Number of Pages

10

ISSN

1035-3712

Location

Victoria

Publisher

CSIRO

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Centre for Environmental Management; Dept. of Zoology; Faculty of Arts, Health and Sciences;

Era Eligible

No

Journal

Wildlife research.

Usage metrics

CQUniversity

Categories

Keywords

Exports