Wildlife Research Wildlife Research Society
Ecology, management and conservation in natural and modified habitats

Koalas on North Stradbroke Island: diet, tree use and reconstructed landscapes

W. Woodward A B , W. A. Ellis A C E , F. N. Carrick A , M. Tanizaki A , D. Bowen A and P. Smith D
+ Author Affiliations
- Author Affiliations

A Centre for Mined Land Rehabilitation, The University of Queensland, Brisbane, Qld 4072, Australia.

B The School of Land, Crop and Food Sciences, The University of Queensland, Brisbane, Qld 4072, Australia.

C Miscellaneous Ecology Group, School of Integrative Biology, The University of Queensland, Brisbane, Qld 4072, Australia.

D Consolidated Rutile Limited, PO Box 47, Dunwich, Qld 4183, Australia.

E Corresponding author. Email: w.ellis@uq.edu.au

Wildlife Research 35(7) 606-611 https://doi.org/10.1071/WR07172
Submitted: 9 November 2007  Accepted: 16 June 2008   Published: 17 November 2008


North Stradbroke Island lies 4 km off the coast of Queensland, Australia. It is home to one of the only naturally occurring island populations of koalas and it is mined for mineral sands. We analysed the diet and day use tree selections of koalas and recorded the tree species composition of revegetated and undisturbed landscapes at this location. We used faecal cuticle examination to compare the diet of koalas that used reconstructed landscapes with that of koalas that used undisturbed areas. Reconstructed landscapes that were composed of more than 95% diet and/or roost tree species had evidence of use by koalas. Eucalyptus robusta was the most commonly eaten and utilised species and there was no difference in general diet composition between koalas that used the revegetated landscape and those inhabiting undisturbed areas. Other species that were used for roosting and forage included E. racemosa, E. pilularis, Lophostemon confertus and Melaleuca quinquinerva. We observed individual differences and seasonal variation in the diet composition of radio-tracked koalas. These results suggest either flexibility in the diet choices of koalas, or individual preferences within groups of koalas. Our results also indicate that post-mining landscapes can provide habitat that will be used by koalas, which should encourage further efforts into habitat re-creation for native species.


We acknowledge the traditional owners of Minjerribah (North Stradbroke Island) who supported this project and who provided expert koala tracking. Jane Holland, Jack Jackson and Queensland Parks and Wildlife Service Koala Research Unit provided assistance with fieldwork. Glenn Nolan and Chas Capelli assisted with data analysis. Bill Ellis is a Postdoctoral Fellow at the centre for Conservation and Research for Endangered Species, Zoological Society of San Diego. This research was funded by Consolidated Rutile Limited and the Koala Study Program at the University of Queensland. Queensland Environmental Protection Agency provided the permits to work with koalas (WISP00491302). This project was carried out under The University of Queensland animal ethics permit ZOO/ENT/115/04/RT.


Brown V. K. , and Southwood T. R. E. (1987). Secondary succession: patterns and strategies. In ‘Colonisation, Succession and Stability’. (Eds A. J. Gray, M. J. Crawley and P. J. Edwards.) pp. 315–337. (Blackwell Scientific Publications: Oxford.)

Dique, D. S. , Preece, H. J. , Thompson, J. , and de Villiers, D. L. (2004). Determining the distribution and abundance of a regional koala population in south-east Queensland for conservation management. Wildlife Research 31, 109–117.
CrossRef |

Ellis, B. (2003). Integration of natural resources management under Queensland mining legislation. Environmental and Planning Law 20, 64–75.

Ellis, W. A. H. , Carrick, F. N. , Lundgren, P. , Veary, A. , and Cohen, B. (1999). The use of faecal cuticle examination to determine the dietary compostion of koalas. Australian Zoologist 31, 127–133.

Ellis, W. A. H. , Melzer, A. , Carrick, F. N. , and Hasegawa, M. (2002). Tree use, diet and home range of the koala (Phascolarctos cinereus) at Blair Athol, central Queensland. Wildlife Research 29, 303–311.
CrossRef |

Ellis, W. A. H. , Melzer, A. , Green, B. , Newgrain, K. , Hindell, M. A. , and Carrick, F. N. (1995). Seasonal variation in water flux, field metabolic rate and food consumption of free-ranging koalas (Phascolarctos cinereus). Australian Journal of Zoology 43, 59–68.
CrossRef |

Ellis, W. A. H. , Sullivan, B. J. , Lisle, A. T. , and Carrick, F. N. (1998). The spatial and temporal distribution of koala faecal pellets. Wildlife Research 25, 663–668.
CrossRef |

Field, S. A. , O’Connor, P. J. , Tyre, A. j. , and Possingham, H. P. (2007). Making monitoring meaningful. Austral Ecology 32, 485–491.
CrossRef |

Fitzgerald, A. E. (1976). Diet of the opossum Trichosurus vulpecula (Kerr) in the Orongorongo Valley, Wellington, New Zealand, in relation to food-plant availability. New Zealand Journal of Zoology 3, 399–419.

Fox J. E. D. (1997). Fauna habitat reconstruction after mining. In ‘Workshop on Fauna Habitat Reconstruction After Mining’. (Eds C. Asher and L. Bell.) pp. 151–160. (Australian Centre for Mining Environmental Research: Kenmore, Qld.)

Hasegawa M. (1995). Habitat utilisation by koalas (Phascolarctos cinereus) at Point Halloran, Queensland. M.Sc. Thesis, The University of Queensland, Brisbane.

Kavanagh, R. P. , Stanton, M. A. , and Brassil, T. (2007). Koalas continue to use their previous home-ranges after selective logging in Callitris–Eucalyptus forest. Wildlife Research 34, 94–107.
CrossRef |

Matthews, A. , Lunney, D. , Gresser, S. , and Maitz, W. (2007). Tree use by koalas (Phascolarctos cinereus) after fire in remnant coastal forest. Wildlife Research 34, 84–93.
CrossRef |

McAlpine C. , Rhodes J. , Peterson A. , Possingham H. , Callaghan J. , Curran T. , Mitchell D. , and Lunney D. (2007). ‘Planning guidelines for koala conservation and recovery. A guide to best planning practice.’ (Australian Koala Foundation and The University of Queensland: Brisbane.) Available online at http://espace.library.uq.edu.au/view/UQ:124088 [Verified July 2008].

Melzer, A. , Carrick, F. , Menkhorst, P. , Lunney, D. , and St John, B. (2000). Overview, critical assessment, and conservation implications of koala distribution and abundance. Conservation Biology 14, 619–628.
CrossRef |

Pacala, S. W. , and Rees, M. (1998). Models suggesting field experiments to test two hypotheses explaining successional diversity. American Naturalist 152, 729–737.
CrossRef | CAS | PubMed |

Pfeiffer, A. , Melzer, A. , Tucker, G. , Clifton, D. , and Ellis, W. (2005). Tree use by koalas (Phascolarctos cinereus) on St Bees Island, Queensland – report of a pilot study. Proceedings of the Royal Society of Queensland 112, 47–51.

Phillips, S. , Callaghan, J. , and Thompson, V. (2000). The tree species preferences of koalas (Phascolarctos cinereus) inhabiting forest and woodland communities on Quaternary deposits in the Port Stephens area, New South Wales. Wildlife Research 27, 1–10.
CrossRef |

Phillips S. S. (2000). Tree species preferences of the Koala (Phascolarctos cinereus) as a basis for the delineation of management areas for recovery planning in New South Wales. Unpublished report prepared for the Koala Recovery Plan.

Preece H. (2007). Monitoring and modelling threats to koala populations in rapidly urbanising landscapes: Koala Coast, south east Queensland, Australia. Ph.D. Thesis, The University of Queensland, Brisbane.

Price, O. , Milne, D. , and Tynan, C. (2005). Poor recovery of woody vegetation on sand and gravel mines in the Darwin region of the Northern Territory. Ecological Restoration and Management 6, 118–123.
CrossRef |

Samedi I. (1995). Modelling habitat suitability for koalas and application of UET methods in planning for koala habitat. Ph.D. Thesis, The University of Queensland, Brisbane.

Sattler P. S. , and Williams R. D. (1999). ‘The Conservation Status of Queensland’s Bioregional Ecosystems.’ (Environmental Protection Agency: Brisbane, Australia.)

Sullivan, B. J. , Baxter, G. S. , and Lisle, A. T. (2002). Low-density koala (Phascolarctos cinereus) populations in the mulgalands of south-west Queensland. I. Faecal pellet sampling protocol. Wildlife Research 29, 455–462.
CrossRef |

Sullivan, B. J. , Baxter, G. S. , Lisle, A. T. , Pahl, L. , and Norris, W. M. (2004). Low-density koala (Phascolarctos cinereus) populations in the mulgalands of south-west Queensland. IV. Abundance and conservation status. Wildlife Research 31, 19–29.
CrossRef |

Sullivan, B. J. , Norris, W. M. , and Baxter, G. S. (2003). Low-density koala (Phascolarctos cinereus) populations in the mulgalands of south-west Queensland. II. Distribution and diet. Wildlife Research 30, 331–338.
CrossRef |

Thompson J. (2006). The comparative ecology and population dynamics of koalas in the Koala Coast Region of south east Queensland. Ph.D. Thesis, The University of Queensland, Brisbane.

Tun U. N. (1993). Re-establishment of rehabilitated koalas in the wild and their use of habitat in sheldon, redland shire, southeast Queensland with particular reference to dietary selection. M.Sc. Thesis, The University of Queensland, Brisbane.

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