Development of Technical Reintroduction and Population Monitoring of Radiated Tortoises Astrochelys radiata in Southern Madagascar: Ampotaka


Ecological followed previous reintroductions of 262 juvenile Astrochelys radiata in the sacred forest Sirempo have revealed that individuals released directly without acclimatization left the site at 98%. The local habitat fulfilled all the conditions necessary for the development and survival of the species, and this site was recognized as distribution range of the species, but with a population whose abundance to decline over the last ten years. The research project “Development of Technical Reintroduction and Population Monitoring of Radiated Tortoises (Astrochelys radiata) in Southern Madagascar: Ampotaka” in a pre-identified natural environment conducive to their growth will preserve their viability, and predetermine site fidelity through an acclimation period before release. Realizing monitoring contributes to restoring self-sustaining populations in the wild, in cooperation and harmony with the manners and customs, and in trying to follow as much as possible the rigorous procedures already recognized by IUCN to prevent the transmission of diseases to wild populations and/or to prevent genetic mixing of different subpopulations in order not to endanger wild populations.

Share and Cite:

Randrianjafizanaka, S. (2014) Development of Technical Reintroduction and Population Monitoring of Radiated Tortoises Astrochelys radiata in Southern Madagascar: Ampotaka. Open Access Library Journal, 1, 1-8. doi: 10.4236/oalib.1100279.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] (2012) Programme de Conservation. WWF.
[2] Nussbaum, R.A. and Raxworthy, C.J. (2000) Commentary on Conservation of “Sokatra”, the Radiated Tortoise of Madagascar. Amphibian and Reptile Conservation, 2, 6-14.
[3] O’Brien, S., Emahalala, E.R., Beard, V., Rakotondrainy, R.M., Reid, A., Raharisoa, V. and Coulson, T. (2003) Decline of the Madagascar Radiated Tortoise Geochelone radiata Due to Overexploitation. Oryx, 37, 338-343.
[4] Irwin, M.T., et al. (2010) Patterns of Species Change in Anthropogenically Disturbed Habitats of Madagascar. Biological Conservation, 143, 2351-2362.
[5] Pedrono, M., Smith, L.L., Clobert, J., Massot, M. and Sarrazin, F. (2004) Wild-Captive Metapopulation Viability Analysis. Biological Conservation, 119, 463-473.
[6] Leuteritz, T.E.J., Lamb, T. and Limberaza, J.C. (2005) Distribution, Status, and Conservation of Radiated Tortoises (Geochelone radiata) in Madagascar. Biological Conservation, 124, 451-461.
[7] Rasoma, R.V.J., Raselimanana, A.P., Ratovonamana, Y.R. and Ganzhorn, J.U. (2013) Habitat Use and Diet of Astrochelys radiata in the Subarid Zone of Southern Madagascar. Chelonian Conservation and Biology, 12, 56-69.
[8] Tuberville, D. (2008) Evaluating the Success of Translocations for Turtle Conservation: A Case Study Based on Behavioral and Demographic Responses of the Gopher Tortoise, Gopherus polyphemus. Ph.D. Thesis, University of Georgia, Athens.
[9] IUCN (1998) Guidelines for Reintroductions. Prepared by the IUCN/SSC Re-Introduction SPecialist Group Switzerland.
[10] Juvik, J.O., Andrianarivo, A.J. and Blanc, C.P. (1981) The Ecology and Status of Geochelone yniphora: A Critically Endangered Tortoise in Northwestern Madagascar. Biological Conservation, 19, 297-316.
[11] Tuberville, T.D., Clark, E.E., Buhlmann, K.A. and Gibbons, J.W. (2005) Translocation as a Conservation Tool: Site Fidelity and Movements of Repatriated Gopher Tortoises (Gopherus polyphemus). Animal Conservation, 8, 349-358.

Copyright © 2022 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.