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Evaluation of line-transect sampling to estimate nocturnal densities of macropods in open and closed habitats


Le Mar, K and Southwell, C and McArthur, C, Evaluation of line-transect sampling to estimate nocturnal densities of macropods in open and closed habitats, Wildlife Research, 28, (1) pp. 9-16. ISSN 1035-3712 (2001) [Refereed Article]

DOI: doi:10.1071/WR99088


Walked line transects were evaluated for estimating nocturnal densities of red-necked wallaby (Macropus rufogriseus) and the red-bellied pademelon (Thylogale billardierii) in a range of open and closed habitats. The use of cleared transect lines in densely vegetated habitats reduced noise produced by travelling, while permanent grid markers facilitated collection of perpendicular distance data at night. Results from sighting histograms indicated that animals did not display evasive movement in response to the observer before detection. The probabilities of detecting the macropod species varied significantly between habitats. Significant differences in probabilities of detection were also recorded within species between habitats. Consequently, line-transect sampling is recommended over strip-transect sampling for estimating species abundance when more than one species and/or habitat are of interest. Recommendations are made, however, for forest managers wanting to monitor macropod populations on newly established plantations, when line-transect sampling is not feasible and strip-transect sampling is the only alternative.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Evolutionary biology not elsewhere classified
Objective Division:Environmental Management
Objective Group:Terrestrial systems and management
Objective Field:Control of pests, diseases and exotic species in terrestrial environments
UTAS Author:Le Mar, K (Dr Kirsten le Mar)
UTAS Author:McArthur, C (Dr Clare McArthur)
ID Code:22952
Year Published:2001
Web of Science® Times Cited:14
Deposited By:Zoology
Deposited On:2001-08-01
Last Modified:2011-08-03

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