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Temperature-dependent sex determination
at constant temperature
Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic development determine the sex of the offspring. It is present in all crocodilians, many turtles and squamates.
The embryogrowth R package is a set of tools used to model embryo growth and sexual phenotype linked to temperature.
This web server version v. 4.1 is a simplified version of the complete tools available here.
Embryogrowth package 9.5.2 is developped by Marc Girondot
Database version 2024-05-14
The methods have been published in:
These methods MUST not be used for incubation data at non-constant temperatures, both for temperature versus sex ratio and incubation duration versus sex ratio.
Girondot, M. 1999 Statistical description of temperature-dependent
sex determination using maximum likelihood. Evolutionary Ecology Research
1, 479-486.