Literaturdatenbank
Literaturdatenbank |
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Bager, A., Freitas, T. R. O., & Krause, L. (2010). Morphological characterization of adults of orbigny s slider trachemys dorbignyi (duméril & bibron 1835) (testudines emydidae) in southern brazil. Tropical Zoology, 23, 181–194.
Added by: Sarina Wunderlich (06 Jul 2014 16:10:29 UTC) |
| Resource type: Journal Article BibTeX citation key: Bager2010a View all bibliographic details  |
Categories: General Keywords: Emydidae, Habitat - habitat, Malaclemys terrapin, Morphologie - morphology, Schildkröten - turtles + tortoises, Südamerika - South America, Systematik - taxonomy Creators: Bager, Freitas, Krause Collection: Tropical Zoology |
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| Abstract |
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We characterized a population of the Southern Orbigny’s slider turtle, Trachemys dorbignyi (Duméril & Bibron 1835), in its natural environment, focusing on the sex ratio, morphology and sexual dimorphism. The male:female sex ratio was 1.02:1. The 16.8% difference in mean size between the sexes of T. dorbignyi is among the smallest in the family Emydidae. The female is larger than the male in all measurements except one (carapace and plastron terminal distance, CPD). CPD proved to be the most useful measurement to identify the gender of smaller individuals. The discriminant analysis was capable of differentiating males and females with 100% accuracy. CPD was the most important variable in differentiating males, and the carapace height and width of the mouth were most important for females.
Added by: Sarina Wunderlich |