The term "incubation temperature" refers to the specific warm temperature at which something is kept in order to promote growth, development, or maturation. Full definition
Because incubation temperature of turtle eggs determines the animal's sex, a warmer nest results in more females. (breitbart.com)
Because subtle differences in incubation temperature determine C. reevesii's sex, it's possible that the embryos themselves have some control over whether they are born male or female. (sciencemag.org)
Komodo dragon gender is determined by incubation temperature. (eol.org)