Translator Disclaimer
1 August 2008 Nesting Ecology of Podocnemis erythrocephala (Testudines, Podocnemididae) of the Rio Negro, Amazonas, Brazil
Author Affiliations +
Abstract

We studied reproductive ecology and egg survivorship of Podocnemis erythrocephala (Spix 1824) in 4 campina habitats on the Ayuanã River, Santa Isabel do Rio Negro, Amazonas, Brazil. There were 2 nesting periods, the first in early October and the other in the beginning of December, separated by a period of flash floods. A total of 117 nests were recorded, with a nest density of 19.9 nests/ha, a mean clutch size of 8.7 eggs, and a mean egg volume of 14 cm3. Females chose to nest in the most open sites, with plant cover of up to 50%. Nest loss reached 100% for the season: 70% was from flash floods, 12% was from predation by the weasel Eira barbara (Mustelidae), 9% was by the lizard Ameiva ameiva (Teiidae), 5% by humans, 2% by Crocodilurus lacertinus (Teiidae), and 1% by Daptrius ater (Falconidae).

Alexandre Milaré Batistella and Richard C. Vogt "Nesting Ecology of Podocnemis erythrocephala (Testudines, Podocnemididae) of the Rio Negro, Amazonas, Brazil," Chelonian Conservation and Biology 7(1), 12-20, (1 August 2008). https://doi.org/10.2744/CCB-0611.1
Received: 15 January 2005; Accepted: 1 August 2007; Published: 1 August 2008
JOURNAL ARTICLE
9 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top