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Too close for comfort: Contentious issues in human-wildlife encounters
Royal Zoological Society of New South Wales
ISBN electronic:
978-0-9803272-2-9
Publication date:
2008
Chapter Contents
Book Chapter
Home ranges and mortality of a roadside Koala Phascolarctos cinereus population at Bonville, New South Wales
By
Scott A. Lassau
;
Scott A. Lassau
Australian Museum Business Services, The Australian Museum, 6 College St., Sydney, NSW 2010
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Brendan Ryan
;
Brendan Ryan
Australian Museum Business Services, The Australian Museum, 6 College St., Sydney, NSW 2010
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Robert Close
;
Robert Close
School of Biomedical and Health Sciences, University of Western Sydney, Locked Bag 1797 Penrith South DC, NSW 1797
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Chris Moon
;
Chris Moon
Private Pest Management Unit, Department of Environment and Climate Change, P.O. Box 1967, Hurstville N.S.W. 1481
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Pascal Geraghty
;
Pascal Geraghty
Australian Museum Business Services, The Australian Museum, 6 College St., Sydney, NSW 2010
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Ann Coyle
;
Ann Coyle
Private Pest Management Unit, Department of Environment and Climate Change, P.O. Box 1967, Hurstville N.S.W. 1481
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John Pile
John Pile
Private Pest Management Unit, Department of Environment and Climate Change, P.O. Box 1967, Hurstville N.S.W. 1481
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Published:2008
Citation
Scott A. Lassau, Brendan Ryan, Robert Close, Chris Moon, Pascal Geraghty, Ann Coyle, John Pile, 2008. "Home ranges and mortality of a roadside Koala Phascolarctos cinereus population at Bonville, New South Wales", Too close for comfort: Contentious issues in human-wildlife encounters, Daniel Lunney, Adam Munn, Will Meikle
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Vehicles and Koalas Phascolarctos cinereus collide frequently where the Pacific Highway crosses a 3.5 km stretch of forest in Bongil Bongil National Park. Despite the number of road-kills, resident Koalas survive in a 200-500m wide area of forest that lies between the highway and a parallel powerline easement, and seldom cross either boundary. Home ranges of radio-collared animals (which included some overlap) were 22.7 (± 5.1 s.e.) hectares for males and 9.7 (± 1.1 s.e.) hectares for females and extended to the very edge of the highway. Most road deaths, which peaked in September and October, therefore result from young, dispersing animals attempting to cross the highway. Moreover, the locations of fatalities coincide with the intersection of side-tracks and the highway suggesting that some animals are dispersing along the tracks until they meet the highway. Realignment of the highway will reduce habitat for Koalas and is likely to affect some resident animals. After construction of the upgrade is complete, which will include over- and underpasses and associated exclusion fencing to cater for dispersing animals, we predict that Koalas will re-establish home ranges to the edge of the realigned highway.
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