Literaturdatenbank
Literaturdatenbank |
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McKeown, S., Juvik, S. O., & Meier, D. E. (1982). Observations on the reproductive biology of the land tortoises geochelone emys and yniphora in the honolulu zoo. Zoo Biology, 1(3), 223–235.
Added by: Admin (24 Aug 2008 19:37:34 UTC) Last edited by: Beate Pfau (08 Jul 2009 08:01:31 UTC) |
| Resource type: Journal Article DOI: 10.1002/zoo.1430010306 BibTeX citation key: McKeown1982 View all bibliographic details  |
Categories: General Keywords: Astrochelys, Astrochelys yniphora, Geochelone, Haltung = husbandry, Manouria, Manouria emys, Schildkröten = turtles + tortoises, Testudinidae, Verhalten = ethology Creators: Juvik, McKeown, Meier Collection: Zoo Biology |
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| Abstract |
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Geochelone yniphora Testudinidae Manouria emys Captive reproduction of the Burmese brown tortoise (Geochelone emys) has occurred repeatedly over a five-year period in the Honolulu Zoo. Maximum clutch size (51 eggs) exceeds that reported for other members of the Testudinidae. Nesting behavior in G emys includes construction of a large leaf-litter mound. Collection of nest-building material is accomplished by back-sweeping of ground litter within a distance of up to 4 m from the nest site. The nesting female assumes a nest-guarding behavior for a period of 2-3 days following egg laying. Eggs incubated artificially hatched in 63-84 days, with egg fertility at 78-84%. One hundred and three G emys were successfully hatched and reared during the period 1978-82. A colony of endangered Madagascar angulated tortoises (Geochelone yniphora) have been maintained at the Honolulu Zoo since 1971. Courtship and mating behavior is similar to that described for the consubgeneric G radiata. Distinctive male hooking behavior during courtship in G yniphora is related to the exaggerated epiplastron development in this species. Egg laying has occurred repeatedly in the G yniphora colony since 1979 (mean clutch size = 4.2; N = 6) although no eggs have yet proved fertile. Added by: Admin Last edited by: Beate Pfau |