Factors affecting sex determination in sea turtles

Koller, Katarina (2010) Factors affecting sex determination in sea turtles. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

Turtles belong to the class of reptiles. All sea turtles have a male-female (MF) pattern in which cooler incubation temperatures produce males and warmer incubation temperatures produce females. Pivotal temperature is the constant incubation temperature that will produce a 1:1 sex ratio. Reported pivotal temperature is approximately 29˚C. There is a thermosenzitive period for sex determination during development placed around the second third of total time of incubation. In sea turtles, TSD (temperature sex determination) was first documented in the loggerhead, Caretta caretta. Climate change is also affecting the population of the aforementioned groups, because each increase of temperature gives higher priority to the development of the female.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Mrakovčić, Milorad
Date: 2010
Number of Pages: 16
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 04 Dec 2014 11:22
Last Modified: 04 Dec 2014 11:22
URI: http://digre.pmf.unizg.hr/id/eprint/3452

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