In temperature-dependent sex determination, however, it is the environmental temperature during a critical period of embryonic development that determines whether an egg develops as male or female. If the eggs incubate above Pieau and his colleagues focused on defining the TSD thermosensitive period, or the time of development during which changes in temperature can alter sexual organ growth.
Berlin: Springer-Verlag, A widely held view is that temperature-dependent and genotypic sex determination are mutually exclusive, incompatible mechanisms—in other words, a reptile's sex is never under the influence of both sex chromosomes and environmental temperature.
Temperatures that fluctuate between the two extremes will produce a mix of male and female baby turtles. The global population of this species has been stressed from accidental capture and entanglement in commercial fishing equipment.
Ecology 75— PLOS One. In the late s, James J. Ohno, Susumu. In comparison to the current molecular methods for sex identification in turtles with TSD, the WB approach is quick, minimally invasive requires small volume of bloodand the hatchling turtle can then be released immediately.
Journal of Evolutionary Biology. Read Our th Anniversary Issue. These turtles return to the same nesting beach every two or so years to lay 4 to 7 consecutive clutches, about one every 14 days.