Abstract
The African Spur tortoise, Geochelone sulcata, has been introduced to Costa Rica. A total of 31 tortoises were measured for 26 gross morphometry parameters. All individuals measured were inmature, aged from 5 to 34 months, and were born in captivity in La Garita de Alajuela, Costa Rica. Mean straight carapace length was 83.1 mm, mean straight plastron length was 68.3 mm and mean maximum height was 46.2 mm. All the measurements were correlated, except tail length and cloacal distance. Weight had the highest positive allometry coefficient. All the variables were joined in two Principal Components; tail length and cloacal distance in Factor 2 and the rest of them in Factor 1. Lack of correlation among tail measures and the other variables as well as their inclusion in a different Factor could be related with an incipient development of sexual dimorphism characters
References
Anónimo. 1993. Draft IUCN Red List Categories. UICN, Suiza
Anónimo, 2000. Emergency prohibition against importation of two African tortoise species into Florida. Turt. Tortoise Newsl. 1: 20-21.
Arvy, C. 1996. Rèpartition de Geochelone sulcata en Mauritanie occidentale. Soptom. Francia.
Braza, F., M. Delibes & J. Castroviejo. 1981. Estudio biométrico y biológico de la tortuga mora (Testudo graeca) en la Reserva Biológica de Doñana, Huelva. Doñana, Acta Vertebrata 8: 15-41.
Broadley, D.G. 1989. Geochelone sulcata. Occasional papers of the IUCN Species Survival Commision, 5: 47-48.
Cloudsley-Thompson, J.L. 1970. On the biology of the desert tortoise Testudo sulcata in Sudán. J. Zool. (Lond.) 160: 17-33.
Devaux, B. 1993. SOS SULCATA, Programme de sauvegarde de la tortue Geochelone sulcata au Sénégal. Soptom. Francia. 72 p.
Devaux, B. 2000. La tortue qui pleure Geochelone sulcata (Miller, 1779). Chelonii 1: 1-87.
Diagne, T. 1995. Etude et conservation de Geochelone sulcata au Sénégal. 1st Congress of Chelonian Conservation Proceedings: 110-111.
Grubb, P. 1971. Comparative notes on the behaviour of Geochelone sulcata. Herpetologica 27: 328-333.
Hirth, H.F. & E.M. Abdel Latif. 1981. Morphometrics of spurred tortoise Geochelone sulcata on Sudan. J. Herp. 15: 120-121.
Huxley, J.S. 1972. Problems of relative growth. Dover. London.
Innis, C.J. 1994. Considerations in formulating captive diets. Bull. Assoc. Rept. Amph. Veterinarians
: 8-12.
Kapocsy, G. 1980. Reproduction in the African tortoise Geochelone sulcata at the Budapest Zoo. Int. Zoo Yearbook 19: 44.
Lambert, R.K. 1993. On growth, sexual dimorphism and the general ecology of the African spurred turtle Geochelone sulcata in Mali. Chelonian Cons. Biol. 1: 37-46.
Loveridge, A & E.E. Williams. 1957. Revision of the African tortoises and turtles of the suborder Criptodira. Bull. Mus. Comp. Zool. 115: 163-557.
Mahmoud, Z.N. & D.A. El Naiem. 1988. Studies on the growth of the desert tortoise (Geochelone sulcata) in Sudan: changes in morphometrics and body weight from hatchling to one year. Herpetol. J. 1: 280-284.
Mahmoud, Z.N., D.A. El Naiem & D.M. Hamad. 1986. Weight and measurements data of the grooved tortoise Testudo sulcata (Miller) in captivity. Herpet. J. 1: 107-110.
Meek, R. & R.A. Avery. 1988. Allometry in Testudo sulcata: a reappraisal. Herpet. J. 1: 246-247.
Merchán, M. Biología, conservación y tratamiento en cautiverio de la tortuga africana de espolones Geochelone sulcata (Miller, 1779). Reptilia, Barcelona, España. En prensa.
Paul, R.C. 1996. A care guide for the great African spurthighed tortoise Geochelone sulcata. Green Nat. Books, Estados Unidos.
Pérez, M., E. Collado & C. Ramo. 1979. Crecimiento de Mauremys caspica leprosa (Schweigger) (Reptilia, Testudines) en la Reserva Biológica de Doñana. Doñana, Acta Vertebrata 6: 161-178.
Ramo, C. 1980. Biología del Galápago (Podocnemis vogli Muller, 1935) en el Hato “El Frío”, Llanos de Apure, Venezuela. Tesis de Doctorado, Universidad de Navarra, Pamplona, España. 161 p.
Rutledge, P.A. 1994. Breeding The African spur-thighed tortoise. Trop. Fish Hobbyist 42: 118-126.
Schulman, M. 1999. SOS Sulcata: saving Senegal’s endangered African spurred tortoise. Afr. Environ. Wildl. 7: 14-15.
Sokal, R.R. & F.J. Rohlf. 1969. Biometría. H. Blume, Madrid. 832 p.
Stearns, B.C. 1989. The captive status of the African spurred tortoise Geochelone sulcata, recent developments. Int. Zoo Yearbook 28: 87-98.
Stubbs, D. (Ed.). 1989. Tortoises and Freshwater turtles. An action plan for their conservation. IUCN Species Survival Commission Tortoise and Freshwater Turtle Specialist Group. Gland, Suiza. 47 p.
Villiers, A. 1958. Tortues et crocodiles de l´Afrique Noire Francaise. Initiations Africaines 15. Dakar, Senegal. 354 p.
Wilson, R. & R. Wilson. 1997. The care and breeding of the African spurred tortoise Geochelone sulcata. Caparace, London.
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