Literaturdatenbank
Literaturdatenbank |
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Sacchi, R., Pupin, F., Pellitteri-Rosa, D., & Fasola, M. (2007). Bergmann's rule and the italian hermann's tortoises (testudo hermanni): latitudinal variations of size and shape. Amphibia-Reptilia, 28(1), 43–50.
Added by: Admin (14 Aug 2008 20:32:49 UTC) |
| Resource type: Journal Article BibTeX citation key: Sacchi2007 View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Schildkröten = turtles + tortoises, Südeuropa = Southern Europe, Testudinidae, Testudo, Testudo hermanni Creators: Fasola, Pellitteri-Rosa, Pupin, Sacchi Collection: Amphibia-Reptilia |
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| Abstract |
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Testudinidae We used geometric morphometric analysis to investigate latitudinal variation in size and shape of carapace and plastron of 111 Testudo hermanni hermanni (60 males and 51 females) collected in 6 different Italian regions. Basing on a sample of 14 landmarks for carapace and 18 landmarks for plastron, we showed that the size and shape of both sexes changed according to a North-South cline following the Bergmann's rule, tortoises of Northern Italy being 1.1-1.2 larger than that of Southern Italy. Shape variation was higher in carapace probably because sexual selection in this species acts stronger on plastron than on carapace shape.
Added by: Admin |