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2006-09-25 11:11:21 | Hit : 26371 | Vote : 9120

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[자료] Road-kills of the eastern barred bandicoot (Perameles gunnii) in Tasmania: an index of abundance

Road-kills of the eastern barred bandicoot (Perameles gunnii) in Tasmania: an index of abundance

Stephen A. Mallick, Gregory J. Hocking and Michael M. Driessen

Abstract

The value of road-kill counts in monitoring changes in numbers of the eastern barred bandicoot, Perameles gunnii, was investigated in the Huon Valley, south-eastern Tasmania, by comparing population trends on two trapping grids with trends in road-kills on adjacent segments of highway. Between 1992 and 1996, both the number of P. gunnii on the trapping grids and the number of road-kills on the adjacent highway underwent a significant decline. While our data are preliminary, we suggest that road-kills may provide a useful index of gross, long-term trends in numbers of P. gunni. Such an index could be used to track long-term trends in local populations adjacent to a segment of highway, as in the present study. Alternatively, by considering a highway as a continuous ‘chain’ of such segments, road-kills may provide an index of trends over a larger (i.e. regional) scale.

Wildlife Research 25(2) 139 - 145

Full text doi:10.1071/WR96119

http://www.publish.csiro.au/paper/WR96119.htm

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