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Ferreira Juniór, P. D., & de Tarso Amorim Castro, P. (2005). Nest placement of the giant amazon river turtle, podocnemis expansa, in the araguaia river, goias state, brazil. Ambio, 34(3), 212–217. 
Added by: Admin (14 Aug 2008 20:31:51 UTC)
Resource type: Journal Article
BibTeX citation key: Ferreira2005
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Categories: General
Keywords: Fortpflanzung = reproduction, Habitat = habitat, Podocnemididae, Podocnemis, Podocnemis expansa, Schildkröten = turtles + tortoises, Südamerika = South America
Creators: Ferreira Juniór, de Tarso Amorim Castro
Collection: Ambio
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Abstract     
The giant Amazon river turtle (Podocnemis expansa) nests on extensive sand bars on the margins and interior of the channel during the dry season. The high concentration of nests in specific points of certain beaches indicates that the selection of nest placement is not random but is related to some geological aspects, such as bar margin inclination and presence of a high, sandy platform. The presence of access channels to high platform points or ramp morphology are decisive factors in the choice of nesting areas. The eroded and escarped margins of the beaches hinder the Amazon river turtle arriving at the most suitable places for nesting. Through the years, changes in beach morphology can alter nest distribution.
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Notes     
WIF
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