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Providing evidence to improve practice

Individual study: Introduction of the Proserpine rock-wallaby Petrogale persephone from the Queensland mainland to nearby Hayman Island

Published source details

Johnson P.M., Nolan B.J. & Schaper D.N. (2003) Introduction of the Proserpine rock-wallaby Petrogale persephone from the Queensland mainland to nearby Hayman Island. Australian Mammalogy, 25, 61-71


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Release translocated/captive-bred mammals to islands without invasive predators Terrestrial Mammal Conservation

A study in 1998–2002 on an offshore island in Queensland, Australia (Johnson et al. 2003) found that captive-bred proserpine rock-wallabies Petrogale persephone released on an island without introduced predators established a breeding population. No statistical tests were carried out and no data on population size are provided. Four rock-wallabies were born on the island, 3–4 years after the translocation of 27 animals commenced. However, nine rock-wallaby deaths were recorded over the study period (33% of all animals released). Between 1998 and 2002, twenty-seven rock-wallabies were translocated from the Queensland mainland to Hayman Island. Feral goats Capra hircus were eradicated before the release. Released individuals were radio-tracked over three-day periods at three-week intervals in 1998–1999, over one day every month in 2000 and over one day every two months in 2001. Remote video surveillance was used occasionally in 2001 to confirm breeding.

(Summarised by Ricardo Rocha)