As climate change leads to warmer sand temperatures, we would expect an increase in the proportion of female sea turtles in turtle populations due to the temperature-dependent sex determination mechanism. This shift would not result from genetic adaptation or mutation but rather from environmental factors, specifically the rising temperatures affecting the sex ratios during development. Over time, with more females produced, we may also see long-term population impacts if male sea turtles become increasingly rare, potentially leading to difficulties in reproduction.
The sex of sea turtle offspring is determined by the temperature of the sand during development. Temperature over 87° Fahrenheit will result in female offspring. Temperatures below 87° Fahrenheit will result in male offspring. Scientists are concerned about the effects of climate change on sea turtle development. One of these effects is the warming of environments.
In 2-5 sentences, describe what change you'd expect to see in the distribution of sea turtle traits over time, if any. Explain whether it would be caused by a genetic adaptation, a mutation, or the environment.
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