Temperature shifts determine alligator sex in wild nests
New research from the University of Georgia shows that small temperature changes in natural nests affect alligator gender ratios.
Lab results differ from nature
Previous studies showed that constant cool temperatures produced mostly female gators while hot spells created more females. Moderate heat between 90 and 92 degrees Fahrenheit yielded more males in controlled laboratory settings. Wild nests do not maintain these steady conditions because temperatures fluctuate daily or during heat waves.
Study examines real nest data
Scientists analyzed actual field conditions to understand how variable heat impacts population stability. Benjamin Parrott noted that losing females disrupts growth and threatens the species future. The findings appear in the Journal of Experimental Biology and highlight the importance of minor degree differences.
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