Literaturdatenbank
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Ferreira Juniór, P. D., & de Tarso Amorim Castro, P. (2006). Thermal environment characteristics of podocnemis expansa and podocnemis unifilis nesting areas on the javaés river, tocantins, brazil. Chelonian Conservation and Biology, 5(1), 102–107.
Added by: Admin (14 Aug 2008 20:32:45 UTC) |
| Resource type: Journal Article BibTeX citation key: DiasFerreira2006 View all bibliographic details  |
Categories: General Keywords: Fortpflanzung = reproduction, Habitat = habitat, Podocnemididae, Podocnemis, Podocnemis expansa, Podocnemis unifilis, Schildkröten = turtles + tortoises, Südamerika = South America Creators: Ferreira Juniór, de Tarso Amorim Castro Collection: Chelonian Conservation and Biology |
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| Abstract |
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Subsurface temperature variation suggests that the thermal environment of giant Amazon river turtle (Podocnemis expansa) nests is influenced by the proximity of the water table and by the nest depth. The difference between vertical temperature gradients along fluvial beaches indicates that nest placement can exert a significant influence on substrate temperature. Temperatures decrease significantly with depth where P. expansa nest on the beach, but do not change with depth in lower beach areas where P. unifilis nest. Daily temperature variation decreases with depth along the entire beach.
Added by: Admin |