Literaturdatenbank
Literaturdatenbank |
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Moskovits, D. K., & Bjorndal, K. A. (1990). Diet and food preferences of the tortoises geochelone carbonaria and geochelone denticulata in northwestern brazil. Herpetologica, 46(2), 207–218.
Added by: Sarina Wunderlich (13 Oct 2008 21:32:54 UTC) Last edited by: Beate Pfau (06 Jun 2009 11:34:22 UTC) |
| Resource type: Journal Article BibTeX citation key: Moskovits1990a View all bibliographic details  |
Categories: General Keywords: Chelonoidis, Chelonoidis carbonaria, Chelonoidis denticulata, Ernährung = nutrition, Geochelone, Habitat = habitat, Schildkröten = turtles + tortoises, Südamerika = South America, Testudinidae Creators: Bjorndal, Moskovits Collection: Herpetologica |
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| URLs http://www.jstor.org/stable/3892906 |
| Abstract |
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Testudinidae Geochelone carbonaria denticulata We present the diet of the two Amazonian tortoises, Geochelone carbonaria and G. denticulata, based on feeding observations and scat examinations of free-ranging individuals in the rainforest of Maracá, northwestern Brazil. Fruits were prominent in the diet throughout the year, but especially in the wet season; flowers were prominent in the dry season. Tortoises consumed live and dead foliage, stems, fungi, soil, sand, pebbles, and animal matter throughout the year. To examine the characters potentially associated with observed food preferences, we analyzed samples of several food and non-food items for nutrient concentrations and fermentability. Typically eaten foods had high relative abundance and calcium concentrations, while preferred foods had high fermentabilities, high concentrations of total minerals, nitrogen and phosphorus, and low calcium to phosphorus ratios. Nutrient profiles for preferred and rejected items were similar, and nearly converse that of regularly eaten items. Concentrations of the nutrients analyzed cannot be used to predict diet choice. Added by: Sarina Wunderlich Last edited by: Beate Pfau |