Assessment of re-introduction methods for the southern corroboree frog in the Snowy Mountains region of Australia

Published source details Hunter H., Marantelli G., McFadden M., Harlow P., Scheele B. & Pietsch R. (2010) Assessment of re-introduction methods for the southern corroboree frog in the Snowy Mountains region of Australia. Pages 72-76 in: Global Re-introduction Perspectives: 2010. Additional case studies from around the globe. IUCN/SSC Re-introduction Specialist Group, Gland, Switzerland.
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This study is summarised as evidence for the following.

	Action	Category
	Head-start amphibians for release Action Link

Head-start amphibians for release

A replicated study in 2006–2010 in Kosciuszko National Park, Australia (Hunter et al. 2010) found that 1–66% of released captive-reared southern corroboree frogs Pseudophryne corroboree survived. Survival was 1–17% over four years for released adults. Breeding males were recorded at one site in 2008 and 2010 and both sites in 2009. Survivorship from eggs to metamorphosis in artificial pools was 35–66% over two years. Tadpoles and metamorphs tended to be larger in artificial compared to natural pools. Chytrid fungus was detected in one of 11 artificial pools in 2008 and one frog in 2009. In January 2006, 196 four-year-old and 15 five-year-old frogs, largely reared from wild-collected eggs, were marked and released across two sites. Six call surveys were undertaken per site in January 2007–2010. In April–May 2008–2010, fifty wild-collected eggs were placed in 20 artificial pools (400 L tubs) across four natural bog sites. Tubs had a constant water flow, a layer of pond silt and Sphagnum moss. Survival, size and chytrid infection was assessed just before metamorphosis.