Egg incubation is important determinant of sex of reptiles

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Egg incubation is an important determinant of the sex of many reptiles. In a study of loggerhead turtles 100% of the hatchings from eggs incubated at 26°C were male, while 100% of those from eggs incubated at 32°C were female. A study was undertaken of a loggerhead turtle nest on a tropical beach consisting of black volcanic sand. An infrared radiometer was used to monitor upward long wave radiation at the surface of the sand (assume the sand is a perfect blackbody (emitter) covering the eggs. The average Hlux density recorded for the period the eggs were incubating was 617 W/m2. The soil heat Hlux of the sand was found to be 14.4 W/m and the thermal conductivity 0.4 W/(m°C). The turtle eggs were 50 cm below the sand surface. Assuming that the insulating effect of the sand kept the nest at a constant temperature, would you expect the hatchlings to be male or female?

Reference no: EM13551743

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