Climate Change Turned 99.8% of These Sea Turtle Babies into Girls

Climate change great barrier reef Turtles all women 912018

Australia's Great Barrier Reef is becoming worrying feminine, with the largest colonies of sea turtles now nearly completely female.

Among adult green sea turtles, the total proportion of females was 86.8%. The scientists discovered that the group of turtles located in the cooler southern area of the reef were between 65% and 69% female, while the group from the northern area of the reef had a much higher percentage of females.

A new study has found the largest population of more than 200,000 nesting females off Australia's Queensland coast could drastically fall without males to reproduce with.

Published this week in the journal Current Biology, the report said: "With average global temperature predicted to increase 4.7 Fahrenheit (2.6 Celsius) by 2100, many sea turtle populations are in danger of high egg mortality and female-only offspring production".

Sea turtles have a form of what is known as temperature-dependent sex determination (TSD).

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"Any variation on that of about one to two degrees, could risk producing all females or perhaps embryonic death".

These latest findings also add to worries about changes to the Great Barrier Reef ecosystem, which have been exacerbated by bleaching events that have wiped out areas of coral from this iconic habitat. The reader's can rely on the content at their own will. Mid-day accepts no responsibility or liability for its dependability, trustworthiness, reliability, data, text, images, video, messages, or any other material whatsoever or for any claims/loss/action that the reader may suffer as a result of relying on the content on our site. WWF-Australia CEO Dermot O'Gorman said Australians, and many people around the world, would be concerned at yet another climate change impact on the nation's most popular icon. Warmer temperatures mean more females.

"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. The increasing rate shows that the place will have only female turtles in the near future.

If this trend continues, the turtle populations are likely to collapse, he warned. For years this has sparked concerns that human-induced climate change will cause some species to only produce one sex, leading to extinction.

Climate changes due to the warmer Earth are increasingly affecting our planet globally. Those turtles are already considered endangered species.

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