Implementation of a population augmentation project for remnant populations of the southern corroboree frog (Pseudophryne corroboree)
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Published source details
Hunter D., Osborne W., Marantelli G. & Green K. (1999) Implementation of a population augmentation project for remnant populations of the southern corroboree frog (Pseudophryne corroboree). Pages 158–167 in: Declines and Disappearances of Australian Frogs. Environment Australia, Canberra.
Published source details Hunter D., Osborne W., Marantelli G. & Green K. (1999) Implementation of a population augmentation project for remnant populations of the southern corroboree frog (Pseudophryne corroboree). Pages 158–167 in: Declines and Disappearances of Australian Frogs. Environment Australia, Canberra.
Actions
This study is summarised as evidence for the following.
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Head-start amphibians for release Action Link |
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Head-start amphibians for release
A replicated study in 1997 at three sites in the Snowy Mountains, Australia (Hunter et al. 1999) found that southern corroboree frog Pseudophryne corroboree survival from eggs to metamorphosis was significantly higher for captive-reared compared to wild tadpoles (53–70% vs 0–13%). That was the case at two of the three sites, at the third, the same trend was seen for average clutch survivorship (captive: 33%; field: 15%). Tadpoles released earlier had higher survival than those released later. However, late-release tadpoles metamorphosed two weeks before early-release tadpoles. Field-reared tadpoles metamorphosed two weeks later than both. A total of 374 eggs were collected from the wild. Late stage tadpoles were returned to field enclosures within their original pools in two batches one month apart. Survival of field and captive-reared tadpoles was monitored by dip-netting once a fortnight until metamorphosis. Water levels were maintained to avoid pool drying.
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