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Diaz-Paniagua, C., & Andreu, A. C. , A preliminary experience of testudo graeca population reinforcement in doñana: Incubation, rearing and survival. Unpublished paper presented at XII Congresso Luso Espanhol de Herpetologia. 
Added by: Admin (06 Jan 2014 18:22:44 UTC)
Resource type: Conference Paper
BibTeX citation key: DiazPaniagua2012
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Categories: General
Keywords: Habitat - habitat, Schildkröten - turtles + tortoises, Südwesteuropa - South-Western Europa, Testudinidae, Testudo graeca, Zeitigung - incubation
Creators: Andreu, Diaz-Paniagua
Collection: XII Congresso Luso Espanhol de Herpetologia
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Testudinidae In 2001, eggs from 17 tortoise’ nests (Testudo graeca) from Doñana population were incubated at laboratory. A total of 47 nestlings were obtained. These animals were reared in seminatural conditions during 6 years. In 2007, 24 juveniles, 6 years old that had survived to captivity period, were liberated at their territory of origin. This tortoise population has been monitored periodically from the 1980 decade. An intensive census is achieved approximately every 10 years to assess the conservation status of the Doñana tortoise population. During these censuses the number of tortoises captured inside a determined area, during 3 consecutive springs, are contabilized. Along 2010-2012 censuses we captured 323 individuals, of which 19 were animals liberated in 2007. Of these, 16 were males and 3 females. We analize the incidence of the introduction of the subadults reared in captivity on their origen population. We also analize their growth, their sex ratio and the maturity process along the juvenile period. In addition, the survival rate of the individuals reared is compared with that of their population of origen. Likewise, the variability and evolution of the plastron´ color is showed and discussed in the liberated animals.
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