Strong site fidelity and longer internesting interval for solitary nesting olive ridley sea turtles in Brazil |
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| Authors: | Email author" target="_blank">Lélia?MatosEmail author Augusto?C?C?D?Silva Jaqueline?C?Castilhos Marilda?I?Weber Luciano?S?Soares Luís?Vicente |
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| Institution: | 1.CESAM - Centre for Environmental and Marine Studies, Departamento de Biologia Animal,Faculdade de Ciências da Universidade de Lisboa,Lisboa,Portugal;2.Projeto TAMAR-ICMBio,Centro Nacional de Conserva??o, Pesquisa e Manejo das Tartarugas Marinhas,Pirambu,Brazil;3.Funda??o Pró-TAMAR,Funda??o Centro Brasileiro de Prote??o e Pesquisa das Tartarugas Marinhas,Aracaju,Brazil;4.Funda??o Pró-TAMAR,Funda??o Centro Brasileiro de Prote??o e Pesquisa das Tartarugas Marinhas,Salvador,Brazil;5.MARUM - Center for Marine Environmental Sciences,University of Bremen,Bremen,Germany |
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| Abstract: | Olive ridley sea turtles display two different types of nesting behavior: in arribada (synchronous mass nesting) or solitarily. Contrarily to arribadas, little has been published about solitary nesters. This study aimed to expand the knowledge on internesting interval and
site fidelity of solitary nesting olive ridleys and to test a possible development of arribada nesting behavior. Data were collected in Sergipe (Brazil) over 125 km of beach from 10°30′S/36o23′W to 11°26′S/37o19′W, between
nesting seasons 2004/2005 and 2006/2007. From 962 tagged females, 173 were seen renesting. The average internesting interval
found was longer (22.35 ± 7.01 days) than previously described, which might relate to lower water temperatures during the
internesting period. Olive ridleys at Sergipe showed high nesting site fidelity, with consecutive nesting events occurring
in close proximity, non-randomly and dependently of previous events. Most of the consecutive nests were separated by 4.06–5.59 km.
Development of arribada nesting behavior was not confirmed. |
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