Literaturdatenbank
Literaturdatenbank |
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Medem, F., Castaño-Mora, O. V., & Lugo Rugeles, M. (1979). Reproduction and growth of the morrocoy tortoises of colombia, geochelone carbonaria and geochelone denticulata (testudines: testudinidae): Contribución al conocimiento sobre la reproducción y el crecimiento de los "morrocoyes": geochelone carbonaria y g. denticulata ; testudines. testudinidae. Caldasia, 12(59), 497–511.
Added by: Admin (24 Aug 2008 20:00:24 UTC) Last edited by: Beate Pfau (04 Apr 2009 16:06:29 UTC) |
| Resource type: Journal Article BibTeX citation key: Medem1979a View all bibliographic details  |
Categories: General Keywords: Chelonoidis, Chelonoidis carbonaria, Chelonoidis denticulata, Fortpflanzung = reproduction, Geochelone, Habitat = habitat, Schildkröten = turtles + tortoises, Südamerika = South America, Testudinidae, Zeitigung = incubation Creators: Castaño-Mora, Lugo Rugeles, Medem Collection: Caldasia |
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| Abstract |
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Testudinidae Exact data on the reproduction of the 2 pp. of South American land tortoises (Geochelone carbonaria and G. denticulata) are presented. Measurements and weight of the eggs for G. carbonaria and G. denticulata are given. Duration of the incubation period was a maximum of 202 days and a minimum of 105 days for G. carbonaria and a maximum of 152 days and a minimum of 128 days for G. denticulata. Presence of the oviruptor (egg caruncle) occurred in G. carbonaria at a maximum of 95 days and a minimum of 28 days. The number of eggs ranges from 2-7 for G. carbonaria, and from 1-8 for G. denticulata, but is generally lower. Males and females become sexually active after about 5 yr in G. carbonaria, but copulation was not observed. A specimen (carapace length: 24.7 cm; weight: 2800 g) laid eggs for the 1st time after 11 yr of age.
Added by: Admin Last edited by: Beate Pfau |