Temperature variation and sex determination in reptiles of arizona in Brisbane

July Pieau, C. Palmer-Allen, M. Meeting of the Australian Society of Herpetologists. Oryx Ecol Evol.

Wake, M. The hemipenes of two ZZ males Fig. Scanning electron micrographs of stage 14 a — f and stage 17 g — i embryonic genitalia. Raman, R. Subjects Differentiation Evolutionary developmental biology.

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Storm surges can displace or drown animals, and dehydrate them by salt water intrusion into freshwater habitats Neaves, L. PintoEdward L. Wake, D. PLoS Biol.

Georges How is the gender of some reptiles determined by temperature? Evol Dev. The occurrence of ovotestes coincided with the transition from bipotential to committed gonad.

Temperature variation and sex determination in reptiles of arizona in Brisbane

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  • chromosome composition. In other species, including all crocodilians, most turtles and some lizards, sex is determined by temperature during. Temperature-Dependent Sex Determination in Reptiles. during the thermosensitive period, variations in temperature increase the activity of In the late s, James J. Bull, a professor at the University of Texas at Austin.
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  • Two factors in reptile sex determination have been studied: (1) the presence or absence of heteromorphic sex chromosomes, and (2) the influence of temperature. Recognizable sex chromosomes are common in snakes and lizards, but are apparently rare in turtles and absent in crocodilians and the earth-news.info by: Patterns of temperature-dependent sex determination (TSD) in reptiles. In pattern 11, there are two transitional ranges of temperature (TRTI and TRTz) and two pivotal temperatures (PI and Pz), whereas in patterns la and Ib, only one transitional range of temperature and one pivotal temperature are observed.
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