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Reproduction in neotropical Tropidurus lizards (Tropiduridae): evaluating the effect of environmental factors on T. torquatus

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Lizards exhibit a wide array of reproductive strategies. For tropical lizards, a single reproductive pattern is not evident, and the actual determinants of seasonality in reproduction remain unclear. Tropidurus torquatus is the most widely distributed species of the genus in Brazil and occurs in coastal and inland areas, and in islands off the Brazilian shore. In this study, we examine the reproductive cycle of T. torquatus at a coastal area in Rio de Janeiro State, southeastern Brazil. We analysed the reproductive cycle of T. torquatus from one coastal population to evaluate how reproduction is affected by local environmental factors (rainfall), and we also compared reproductive parameters of T. torquatus between two time periods (15 years apart) at the same locality. Tropidurus torquatus reproduces from the beginning of the dry season to the middle of the rainy season, even considering the two time periods. Reproductive season was similar between the coastal and inland populations suggesting that local environmental factors play a less important role in regulating the duration of the reproductive cycle of these lizards.

Affiliations: 1: Ecology Department, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, CEP. 20550-013, Rio de Janeiro, Rio de Janeiro, Brazil;, Email: vansluys@uerj.br; 2: Ecology Department, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, CEP. 20550-013, Rio de Janeiro, Rio de Janeiro, Brazil

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/content/journals/10.1163/156853810790457920
2010-01-01
2016-12-03

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