Physical Characteristics of Giant Amazon Turtle (Podocnemis expansa) Nests

Kelly Bonach; José F. Lewinger; Álvaro P. da Silva; Luciano M. Verdade

doi:10.2744/1071-8443(2007)6[252:PCOGAT]2.0.CO;2

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Kelly Bonach,¹ José F. Lewinger,² Álvaro P. da Silva,³ Luciano M. Verdade⁴

¹RAN/IBAMA, Rua 229, 95, Setor Universitário, Goiânia, GO 74.605–090 Brazil. [ ] Kelly.Bonach@ibama.gov.br
²Departamento de Engenharia de Produção e Sistemas / Universidade Federal de Santa Catarina, Caixa Postal 246, Florianópolis, SC 88040–900, Brazil
³Departamento de Solos e Nutrição de Plantas/ESALQ/Universidade de São Paulo, Caixa Postal 09, Piracicaba, SP 13418–900 Brazil [ ] apisilva@carpa.ciagri.usp.br
⁴Laboratório de Ecologia Animal/LPA/ESALQ/ Universidade de São Paulo, Caixa Postal 09, Piracicaba, SP 13418–900 Brazil [E-mail: ] lmv@esalq.usp.br

Abstract

We determined the relationship between incubation success and physical characteristics of Podocnemis expansa nests on 4 sand beaches of the Araguaia River in the southern Amazon basin, Brazil. Sand samples measuring grain size, humidity, and density were collected during the first 7 days after egg laying. The choice of nest site seems to be more relevant for the reproductive success of a P. expansa than the female's capacity to build a nest.

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Kelly Bonach, José F. Lewinger, Álvaro P. da Silva, and Luciano M. Verdade "Physical Characteristics of Giant Amazon Turtle (Podocnemis expansa) Nests," Chelonian Conservation and Biology 6(2), 252-255, (1 December 2007). https://doi.org/10.2744/1071-8443(2007)6[252:PCOGAT]2.0.CO;2

Received: 21 October 2004; Accepted: 1 September 2005; Published: 1 December 2007

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