Pough, F. Variations on this theme also exist. By agreement with the publisher, this book is accessible by the search feature, but cannot be browsed. For species that were not included in the Tree of Sex but the genus or family had invariable sex determination, we assumed the same type of sex determination as reported for the genus or family, respectively [ 2 ].
References 1. Maklakov AA, Lummaa V. We then added the development completed each day to the previous days' tally, and produced a curve that related the proportion of development completed with temperature, where 1 denoted hatching Figure 3. Ecol Evol.
Consent for publication Not applicable. Discussion Our study showed that the type of sex-determining mechanism is associated with key demographic attributes across reptiles with genetic versus temperature-dependent sex-determination systems.
Background Sex determination in reptiles is remarkably labile, and includes genotypic sex determination GSD with or without sex chromosome heteromorphy, parthenogenesis, and temperature-dependent sex determination TSD [ 1 ].
Third, we studied the sex differences in mortality rates, which may be enhanced in GSD by at least two mechanisms. Example showing the relationship between the CTE 0. Abstract Background The sex of many reptiles is determined by the temperature an embryo experiences during its development.
For species that were not included in the Tree of Sex but the genus or family had invariable sex determination, we assumed the same type of sex determination as reported for the genus or family, respectively [ 2 ]. Garamszegi LZ, editor.
Young females that are larger than normal at the end of their first reproductive season may be able to lay eggs in their first year of life, thus increasing their reproductive potential compared to the females that do not lay eggs in their first year of life. It appears that the enzyme aromatase which can convert testosterone into estrogen is important in temperaturedependent sex determination.
PLoS Biol. In short, studies were considered reliable data sources if the methods used to capture animals were not sex-biased, the sexing method was reliable, and the population was sampled intensively, i.