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End date: 2009 × Start date: 2005 × Subject: Australia marsupials × Subject: Wildlife conservation ×

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    Distribution and abundance of five threatened marsupials at Mount Rothwell
    Poole, Eliza ( 2005)
    The conservation and management of Australia's threatened marsupials must be based on a sound knowledge of their biology and ecology. Two aspects of ecology, distribution and abundance, are of particular importance. This study examined the distribution and abundance of five species reintroduced at Mt Rothwell. A brief examination was also made of each species' sex ratio and general condition. Data was collected via a markrecapture survey, and analysed using the MARK computer program and Arcview mapping software. An estimated 164 +-28 Rufous Bettong (Aepyprymnus rufescens) inhabit Mt Rothwell and were trapped predominantly in grassland habitat. Although the population size of Eastern Quoll (Dasyurus viverrinus) could not be reliably estimated, it is assumed to consist of 20 individuals, almost all found in the grasslands. Southern Brown Bandicoot (Isoodon obesulus) were the most populous species, with 289 +- 82 individuals inhabiting both woodland and grassland habitats. There was insufficient data to estimate the population size of the Eastern Barred Bandicoot (Perameles gunnii), but fourteen individuals were released one year ago, and all trapped individuals were in the grasslands. Conversely, Long-nosed Potoroo (Potorous tridactylus), estimated at 30 +- 12 individuals, were found exclusively in woodland habitat. The results of this study will provide baseline information necessary for future management decisions, and will be of great benefit to the conservation of these species at Mt Rothwell.