Warmer Waters Are Turning Green Turtles Babies Female

Warmer Waters Are Turning Green Turtles Babies Female

This unique biological trait of these creatures is what that has jeopardised their future in an increasingly warmer world as rising temperatures due to climate change are turning one of the world's largest sea turtle colonies nearly entirely female, a new study revealed.

Temperatures amid hatching influence which sex the ocean turtles progress toward becoming, and as temperatures rise comprehensively the turtles could turn out to be totally female.

The proportion of female hatchlings increases when nests are in warmer sands, while cooler temperatures is known to produce more male turtles.

Climate change is turning baby green sea turtles female

Genetic and hormone analysis of the turtles in the northern and southern parts of the Great Barrier Reef showed 99 per cent of young sea turtles nesting on warmer northern beaches were female. For an exact number of female and males to be born, scientists refer to the pivotal temperature which sits at 29.3 degrees Celsius (84.74 degrees Fahrenheit) for the green sea turtle. Just a few degrees can tip a delicate natural balance.

"This research is so important because it provides a new understanding of what these populations are dealing with", Michael Jensen, the study's lead author and a marine biologist with the National Oceanic and Atmospheric Administration, said in a statement.

GREEN turtles could become extinct as alarming new research reveals up to 99 per cent of the reptiles are born female.

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Unlike anatomical exams at nesting beaches used to determine the sex of individual hatchlings, the new study used an innovative combination of endocrinology and genetics to assess the sex of hundreds of turtles across a large foraging ground. It included, 99.1 percent of young, subadults percentage was 99.8 and adults' percentage was 86.8. In contrast, the southern region, where it is fairly colder, females accounted for only 65-69% of the population.

"Our study highlights the need for immediate management strategies aimed at lowering incubation temperatures at key rookeries to boost the ability of local turtle populations to adapt to the changing environment and avoid a population collapse - or even extinction".

"Australia must adopt ambitious climate change targets that will save the Reef and its unique creatures".

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Green sea turtles are considered endangered throughout much of the world, under siege from coastal debris, loss of habitat, fishing nets, and pollution, according to the International Union for Conservation of Nature.

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