Literaturdatenbank
Literaturdatenbank |
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May, C. D., Bidmon, H.-J., Buskirk, J. R., & Vinke, S. (2010). Über das auftreten eines nackenschildes bei einer südamerikanischen landschildkröte, chelonoidis carbonaria. Schildkröten im Fokus, 7(2), 11–20.
Added by: Admin (01 Aug 2010 18:22:00 UTC) |
| Resource type: Journal Article BibTeX citation key: May2010 View all bibliographic details  |
Categories: General Keywords: Chelonoidis, Chelonoidis carbonaria, Morphologie = morphology, Schildkröten = turtles + tortoises, Systematik = taxonomy, Testudinidae Creators: Bidmon, Buskirk, May, Vinke Collection: Schildkröten im Fokus |
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| Abstract |
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Testudinidae Geochelone Chelonoidis carbonaria It is common knowledge that all South American tortoises (Chelonoidis) lack a nuchal scute and according to Auffenberg (1971) this scute is lacking for more than 30 million years. Here we describe the occurrence of a nuchal scute in Chelonoides carbonaria (“Cherryheads“). In total nuchal scutes were found in 4 hatchlings from 4 different clutches which had been derived from the same female. These four clutches had been deposited after the introduction of a new male into the breeding group. Because 4 out of 19 hatchlings possessed a nuchal scute it is suggested that this trait is inherited following Mendelian inheritance. Other possibilities are also discussed. However this observation calls for more rigorous follow up studies in order to elucidate some still open questions in basic chelonian genetics and phylogeny.
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