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	Provedor de dados Acta Amazonica (2) Autor Castro,Paulo de Tarso Amorim (2) Ferreira Júnior,Paulo Dias (2) Palavra-chave Araguaia basin (1) Crixás-Açu River (1) Giant Amazon river turtle (1) Incubation duration (1) Nesting (1) Nesting place (1) Podocnemis (1) Podocnemis expansa (1) Sediment (1) Turtle (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2006 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Geological control of Podocnemis expansa and Podocnemis unifilis nesting areas in Rio Javaés, Bananal Island, Brazil Acta Amazonica Ferreira Júnior,Paulo Dias; Castro,Paulo de Tarso Amorim. The distribution of the nests of Podocnemis expansa (Amazon turtle) and Podocnemis unifilis (yellow-spotted side neck turtle) along the point bars of the Javaés River in Bananal Island, demonstrates a clear preference of these chelonians for differentiated geological environments, in respect to the morphology, grain size or height of the nests in relation to the level of the river. The topographical distribution and the differences in the grain size of the sediments that compose the point bars of the river, originated from the multiple sedimentary processes, and make possible the creation and separation of different nesting environments. Each turtle species takes advantage of the place that presents physiographic characteristics appropriate to the hatching... Tipo: Info:eu-repo/semantics/article Palavras-chave: Podocnemis; Turtle; Sediment; Nesting place; Incubation duration. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000300010 Geological characteristics of the nesting areas of the giant Amazon river turtle (Podocnemis expansa) in the Crixás-Açu river in Goiás State, Brazil Acta Amazonica Ferreira Júnior,Paulo Dias; Castro,Paulo de Tarso Amorim. A large population of the giant Amazon river turtle (Podocnemis expansa) nests along the beaches of the Crixás-Açu River in the central western region of Brazil. In spite of the existence of several point bars in the area, only a selected group of beaches is used for nesting by P. expansa. Geological aspects, such as river width and depth, beach height above 200 cm with sandy sediments, were indispensable for the choice of these nesting sites. The relatively reduced dimensions of the point bars and the great number of turtles, which nest in the same local, contributed to the existence of a high nest concentration. The rapid rise of the Crixás-Açu River caused the flooding of the beaches and the drowning of hatchlings and embryos. It is estimated that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Giant Amazon river turtle; Araguaia basin; Crixás-Açu River; Nesting; Podocnemis expansa. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000200015 Registros recuperados: 2 Primeira ... 1 ... Última

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