Optimal release strategies for cost-effective reintroductions
Stefano Canessa, David Hunter, Michael McFadden, Gerry Marantelli, Michael A McCarthy
Journal of Applied Ecology | WILEY | Published : 2014
Ex situ programmes for endangered species commonly focus on two main objectives: insurance against immediate risk of extinction and reintroduction. Releases influence the size of captive and wild populations and may present managers with a trade‐off between the two objectives. This can be further complicated when considering the costs of the captive population and the possible release of different life stages. We approached this decision problem by combining population models and decision‐analytic methods, using the reintroduction programme for the southern corroboree frog Pseudophryne corroboree in Australia as an example. We identified the optimal release rates of eggs and subadults which ..View full abstract
Manuscript preparation was supported by the ARC Centre of Excellence for Environmental Decisions and the University of Melbourne. The study was initiated by the Corroboree Frog Recovery Team, through a grant to MMC funded by the NSW Government and Australian Government through a National Heritage Trust grant to the Murray Catchment Management Authority, whose support is gratefully acknowledged. Comments by two referees greatly improved an earlier version of this manuscript.