Literaturdatenbank
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Malvásio, A., de Souza, A. M., de Barros Molina, F., & de Arruda Sampaio, F. A. (2003). Feeding behavior and food preference of podocnemis expansa (schweigger), p. unifilis (troschel) and p. sextuberculata (cornalia) in captivity (testudines, pelomedusidae). Revista Brasileira de Zoologia, 20(1), 161–168.
Added by: Admin (14 Aug 2008 20:36:24 UTC) Last edited by: Beate Pfau (04 Apr 2009 10:35:48 UTC) |
| Resource type: Journal Article BibTeX citation key: Malvasio2003a View all bibliographic details  |
Categories: General Keywords: Ernährung = nutrition, Schildkröten = turtles + tortoises Creators: de Arruda Sampaio, de Barros Molina, Malvásio, de Souza Collection: Revista Brasileira de Zoologia |
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| Abstract |
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The feeding behavior and the food preference was studied in P. expansa (Schweigger, 1812) P. unifilis (Troschel, 1848) and P. sextuberculata (Cornalia, 1849). The method used for feeding behavior and food preference was the sampling of all occurrences. The Students' t test was applied on the food items, to compare differences during the development of each species. The main conclusions are: feeding behavior for food, except alive animals, is divided in foraging, approach, olfactory recognition, capture, laceration and ingestion; the persecution behavior was observed for prey activity; cleptoparasitism occurs in the three species and neustophagia mechanism was detected in P. unifilis; P. sextuberculata shows to be almost only carnivorous and P. expansa and P. unifilis show to be omnivorous; P. expansa can be considered more herbivorous in captivity than P. unifilis during the age between one and five years old and more than five years old; P. expansa is more sensitive than P. unifilis concerning the alteration of the food place, mainly the meat, decreasing its consumption, if it is put on a dry place.
Added by: Admin Last edited by: Beate Pfau |