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Pearse, D. E., Dastrup, B. R., Ackerman, R. A., & Sites, J. W. (2003). Patterns of paternity in clutches of giant amazon river turtles, podocnemis expansa, from venezuela. Abstracts ASIH Meeting 2003. 
Added by: Admin (14 Aug 2008 20:36:26 UTC)
Resource type: Journal Article
BibTeX citation key: Pearse2003a
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Categories: General
Keywords: Fortpflanzung = reproduction, Genetik = genetics, Habitat = habitat, Podocnemididae, Podocnemis, Podocnemis expansa, Schildkröten = turtles + tortoises, Südamerika = South America
Creators: Ackerman, Dastrup, Pearse, Sites
Collection: Abstracts ASIH Meeting 2003
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In recent years, molecular genetic data have shown that multiple paternity occurs in groups of offspring in many taxa. In turtles, multiple paternity has been found in almost every species examined. However, there are a wide range of reported frequencies of multiple paternity among species, and data on variation in paternity patterns among populations of the same species remain limited. In addition, few data exist on the distribution of paternity among males within multiply sired clutches. Here we present paternity data from 32 clutches of the Giant River Turtle (Arrau, Podocnemis expansa), from the Orinoco River in Venezuela. The large clutches of this turtle permit sample sizes sufficient for accurate assessment of multiple paternity, as well as skew in paternity within multiply-sired clutches (mean sample size = 28.7, range, 10 - 76). Results from the present study extend previous research on paternity in turtles and add to the growing body of knowledge on turtle mating systems.
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