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Astrochelys radiata (SHAW, 1802)

IUCN Red List - Astrochelys radiata - Critically Endangered, CR

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Higher TaxaTestudinidae, Testudines (turtles) 
Subspecies 
Common NamesE: Radiated Tortoise
G: Strahlenschildkröte 
SynonymTestudo radiata SHAW 1802: 22
Testudo coui DAUDIN 1802
Testudo Radiata — CUVIER 1831: 65
Testudo radiata — DUMÉRIL & BIBRON 1835: 83
Testudo madagascariensis DUMÉRIL & BIBRON 1835 (nomen nudum)
Testudo Radiata — DUMÉRIL & BIBRON 1854: 220
Testudo desertorum GRANDIDIER 1869
Testudo hypselonata BOURRET 1941
Asterochelys radiata — BOUR 1980
Asterochelys radiata — OBST 1985
Geochelone radiata — ERNST & BARBOUR 1989
Geochelone (Asterochelys) radiata — KUCHLING 1989
Geochelone radiata — PRITCHARD 1992
Astrochelys radiata — DAVID 1994
Geochelone (Astrochelys) radiata — GLAW & VENCES 1994: 224
Asterochelys radiata — GLAW 2004
Astrochelys radiata — THOMAS & CHIARI 2004
Astrochelys radiata — VALVERDE 2005
Astrochelys radiata — LE et al. 2006
Geochelone radiata — HAMMER 2007
Astrochelys radiata — FRITZ & BININDA-EMONDS 2007
Geochelone radiata — BAUR 2014 
DistributionMadagascar (Antandroy Territory in the south between the Mandrare and Menarandra waterways). Endemic.

Type locality: "Madagascar"; restricted by Bour 1978 to "Soalara (Baie de Saint-Augustin) sud-ouest de Madagascar". Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous. 
TypesHolotype: BMNH 1947.3.5.15. 
CommentTheoretically the name radiata is a junior synonym of Testudo coui. It should be applied to the ICZN to propose the conservation of radiata and suppress the name coui. Picture in Herpetofauna 4 (17): 13

FRITZ (1995) reports hybrids between Geochelone radiata and G. carbonaria.

May reach 40 cm carapace length and 13 kg.

Type species: Testudo radiata SHAW 1802 is the type species of the genus Asterochelys GRAY 1873: 724 (PZS), later misspelled Astrochelys GRAY 1873: 4. 
References
  • Barbour, Thomas 1918. Vertebrata from Madagascar. 2. Amphibia and Reptilia. Bull. Mus. Comp. Zool. Harvard 61 (14): 479-489. - get paper here
  • Baur, M. 2014. Ernährungsbedingte Erkrankungen bei Landschildkröten. Reptilia (Münster) 19 (105): 58-66
  • Behler, John L. 1992. Wildlife as Canon sees it: Radiated Tortoise (Geochelone radiata). National Geographic 182 (5): unnumbered
  • Bonin, F., Devaux, B. & Dupré, A. 2006. Turtles of the World. English translation by P.C.H. Pritchard. Johns Hopkins University Press, 416 pp.
  • Bour, R. 1979. Les tortues actuelles de Madagascar (République Malagache): liste systématique et description de deux sous-espèces nouvelles (Reptilia-Testudines). Bulletin de la Société Etude des Sciences Anjou, N.S. 10:141-154 [1978]
  • Bour,R. 1980. Essai sur la taxinomie des Testudinidae actuels (Reptilia, Chelonii). Bull. Mus. natl. Hist. nat. Paris (4) 2 (2): 541-546
  • Caccone, Adalgisa; George Amato; Oliver C. Gratry; John Behler and Jeffrey R. Powell 1999. A Molecular Phylogeny of Four Endangered Madagascar Tortoises Based on MtDNA Sequences. Molecular Phylogenetics and Evolution 12 (1): 1–9 - get paper here
  • Castellano, Christina M.; Anders G.J. Rhodin, Michael Ogle, Russell A. Mittermeier, <br />Herilala Randriamahazo, Rick Hudson, and Richard E. Lewis, Eds. 2014. Turtles on the Brink in Madagascar: Proceedings of Two Workshops on the Status, Conservation, and Biology of Malagasy Tortoises and Freshwater Turtles. Chelonian Research Monographs, doi: 10.3854/crm.6 - get paper here
  • Currylow, Andrea F. T., Mbolatiana Ranaivoharivelo and Edward E. Louis, Jr. 2014. Astrochelys radiata (radiated tortoise) nest predation. Herpetological Review 45 (1): 116-117
  • Cuvier, G. 1831. The Animal Kingdom arranged in conformity with its organization, by the Baron Cuvier, ... with additional descriptions of all the species hitherto named, and of many not before noticed, by Edward Griffith... and others. Vol. 9. Whittaker, Treacher and Co., London, 481 pp. - get paper here
  • D'Cruze, Neil; Annette Olsonn, David Henson, Sunil Kumar, and David Emmett. 2009. The Amphibians and Reptiles of the Lower Onilahy River Valley, a Temporary Protected Area in Southwest Madagascar. Herp. Cons. Biol. 4: 62-79 - get paper here
  • Duméril, A. M.C., G. BIBRON & A. DUMÉRIL 1854. Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 9. Paris, XX + 440 S. - get paper here
  • Duméril, A.M.C., and G. Bibron. 1835. Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2. Librairie Encyclopédique de Roret, Paris, iv + 680 p. - get paper here
  • Ernst,C.H. and Barbour,R.W. 1989. Turtles of the World. Smithsonian Institution Press, Washington D.C. - London
  • Fritz, U. 1995. Schildkröten-Hybriden. 2. Halsberger-Schildkröten (Cryptodira). Herpetofauna 17 (95): 19-34 - get paper here
  • Fritz, Uwe and Olaf R.P. Bininda-Emonds 2007. When genes meet nomenclature: Tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone. Zoology 110 (4): 298-307 [erratum in vol. 111 (1): 84] - get paper here
  • Gardner CJ, Raxworthy CJ, Metcalfe K, Raselimanana AP, Smith RJ, Davies ZG 2015. Comparing Methods for Prioritising Protected Areas for Investment: A Case Study Using Madagascar’s Dry Forest Reptiles. PLoS ONE 10(7): e0132803, doi:10.1371/journal.pone.0132803 - get paper here
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Glaw, F. 2004. Die Herpetofauna Madagaskars: Vielfalt, Lebensweise und Gefährdung. Draco 5 (19): 4-21 - get paper here
  • Gray, J.E. 1873. Hand-list of the specimens of shield reptiles in the British Museum. British Museum, London, 124 pp.
  • Grossmann, P. & W. Grossmann 1991. Das Portrait: Asterochelys radiata (Shaw). Sauria 13 (4): 1-2 - get paper here
  • Hammer, J. 2007. Die Strahlenschildkröte Madagaskars - eine gepanzerte Schönheit. Reptilia (Münster) 12 (65): 45-50 - get paper here
  • Hammer, J. 2007. The radiated tortoise - Shelled beauty of Madagascar. Reptilia (GB) (50): 52-57 - get paper here
  • Hammer, J.M. & Ramilijaona, O. 2009. Population study on Astrochelys radiata (SHAW, 1802) in the Tsimanampetsotsa National Park, southwest Madagascar. Salamandra 45 (4): 219-232 - get paper here
  • Hammer, Jutta M. 2015. Reproduction as a Function of Living Conditions: The Breeding Biology of the Radiated Tortoise (Astrochelys radiata) under Natural and Captive Conditions in Southwest Madagascar Journal of Herpetology Dec 2015, Vol. 49, No. 4: 633-640. - get paper here
  • Kuchling, G. 1989. Ökologie, Lebensweise und Überlebenschancen der Landschildkröten Madagaskars. Salamandra 25 (3/4): 169-190
  • Leuteritz, T.E. 2002. Distribution, status, and reproductive biology of the radiated tortoise, Geochelone radiata (SHAW, 1802) in Southwest Madagascar. Unpublished Ph.D. thesis, George Mason University, Fairfax, Virginia. 134 pp.
  • LEUTERITZ, THOMAS E.J. AND ROLLANDE RAVOLANAIVO 2003. Distribution, status, and biology of the radiated tortoise, Geochelone radiata, in southwest Madagascar. Chelonian Conserv. Biol. 4 (3): 730
  • Love, B. 2006. Die madagassische Schildkrötenkrise. Reptilia (Münster) 11 (58): 16-17 - get paper here
  • Nussbaum, Ronald A.; Christopher J. Raxworthy 2001. Commentary on conservation of "Sokatra," the radiated tortoise (Geochelone radiata) of Madagascar. Amphibian & Reptile Conservation 2 (1): - get paper here
  • Randriamahazo, Herilala, Andrea Currylow, Rick Hudson and Christina Castellano. 2014. Mobilizing TSA's confiscation to reintroduction strategy for Radiated Tortoises. Turtle Survival 2014: 34-37 - get paper here
  • Rasoma, Rahantavololona Vonimanitra Juliana; Achille P. Raselimanana, Yedidya R. Ratovonamana, and Jörg U. Ganzhorn 2013. Habitat Use and Diet of Astrochelys radiata in the Subarid Zone of Southern Madagascar. Chelonian Conservation and Biology Jul 2013, Vol. 12, No. 1: 56-69. - get paper here
  • RIOUX PAQUETTE, SEBASTIEN; B.H. Ferguson; FRANÇOIS-JOSEPH LAPOINTE and EDWARD E. LOUIS JR 2009. Conservation Genetics of the Radiated Tortoise (Astrochelys radiata) Population from Andohahela National Park, Southeast Madagascar, with a Discussion on the Conservation of This Declining Species. Chelonian Conservation and Biology 8(1): 84–93
  • RIOUX PAQUETTE, SEBASTIEN; GARY D. SHORE, SANDRA M. BEHNCKE, FRANÇOIS-JOSEPH LAPOINTE and EDWARD E. LOUIS JR 2005. Characterization of polymorphic microsatellite markers for the endangered Malagasy radiated tortoise ( Geochelone radiata). Molecular Ecology Notes 5: 527–530
  • Rogner, M. 2006. Mauritius für Anfänger. Reptilia (Münster) 11 (60): 43-50 - get paper here
  • Shaw, G. 1802. General Zoology, or Systematic Natural History. Vol.3, part 2. G. Kearsley, Thomas Davison, London: 313-615 - get paper here
  • Thomas, M. & Chiari, Y. 2004. Untersuchung der genetischen Differenzierung der Landschildkröten Südmadagaskars als Basis für Phylogeographie und Artenschutz - Bericht zum Start des Projektes. Elaphe 12 (4): 56-58
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  • Walker, Ryan C. J. and Tsilavo H. Rafeliarisoa 2012. Distribution of Radiated Tortoise (Astrochelys radiata) Bush Meat Poaching Effort. Chelonian Conservation and Biology Dec 2012, Vol. 11, No. 2: 223-226. - get paper here
  • Walker, Ryan; Rafeliarisoa, Tsilavo; Currylow, Andrea; Rakotoniaina, Jean Claude; Louis Jr, Edward 2014. Short term monitoring reveals the rapid decline of southern Madagascar's Critically Endangered tortoise species. The Herpetological Journal 24 (3): 193-196 - get paper here
  • Werning, H. 2004. Planung und Bau eines reptilienzoos: “Reptilium - Terrarien- und Wüstenzoo” in Landau entsteht. Reptilia (Münster) 9 (48): 80-85 - get paper here
 
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