Posted on 01/08/2018 12:38:15 PM PST by Oldeconomybuyer
Green sea turtles do not develop into males or females due to sex chromosomes, like humans and most other mammals do. Instead, the temperature outside a turtle egg influences the sex of the growing embryo. And this unusual biological quirk, scientists say, endangers their future in a warmer world.
Already, some sea turtle populations are so skewed by heat that the young reptiles are almost entirely female, according to a new report in the journal Current Biology.
“This is one of the most important conservation papers of the decade,” said biologist David Owens, a professor emeritus at the College of Charleston who was not a part of this research. It will not be long, perhaps within a few decades to a century, until “there will not be enough males in sea turtle populations,” he warned.
The sex of a green sea turtle is a result of its environment. “They have temperature-dependent sex determination,” said Camryn Allen, a National Oceanic and Atmospheric Administration endocrinology researcher and co-author of the new study. “It’s not genetics. It’s actually the temperature.”
At what biologists call the pivot temperature, turtles hatch as a mixture of males and females. For green sea turtles, this temperature is 29.3 degrees Celsius (85 Fahrenheit). A few degrees below 29.3 C, all the sea turtles are born male. Heat up the eggs and only females are born.
“That transitional range, from 100 percent males to 100 percent females, spans a very narrow band of only a couple of degrees,” said NOAA marine biologist and study co-author Michael Jensen.
(Excerpt) Read more at washingtonpost.com ...
as long as the females are hot, and not as ugly as Oprah, sure why not...
I’m with you - legions of baby green sea turtle experts turning them all over and determining their sex. Uh-huh...
Target rich environment for male sea turtles in the near future!
Fake news
What measurable aspect of climate is to blame for this phenomenon? I suspect this is a total contrived lie.
“Climate change did the same thing to the males in Hollywood, CA.”
Turned them into eunuchs.
According to CNN the female turtles are also paid less than male turtles.
So.... during the last Ice Age, all the sea turtles were male?
I wish I was a male sea turtle.
Watched a box turtle go all moon eyed over a shoe once.
Was rather hilarious.
You win the internets! Hahaha!
How have sea turtles survived over millions of years?
NOAA produces the fakest #FakeScience...
NOAA Temperature Adjustments Correlate Exactly with the Rise in CO2 - Big Surprise
Thermometers show the US cooling since about 1920, but NOAA massively cools the past to create the appearance of a warming trend. These adjustments make a spectacular hockey stick of data tampering. When plotted against atmospheric CO2, the correlation is almost perfect. NOAA is tampering with the data exactly to match their theory.
NOAA Radiosonde Data Shows No Warming For 58 Years March 7, 2016
NOAA Fiddles With Climate Data To Erase The 15-Year Global Warming ‘Hiatus’ 6/4/2015
National Oceanic and Atmospheric Administration scientists have found a solution to the 15-year “pause” in global warming: They “adjusted” the hiatus in warming out of the temperature record. New climate data by NOAA scientists doubles the warming trend since the late 1990s by adjusting pre-hiatus temperatures downward and inflating temperatures in more recent years.
NOAA = Fake Science!
The next study will be on dead beat male turtles.
So I searched for Geriatric, really tired, Turtles and....
What was the water temp when he got hatched?
They have been around for 65 MILLION years, yet they are doomed if the earth’s temperature fluctuates more than a few degrees for a decade????
Man, some people will fall for anything.... some people are stupid.
Were there gay sea turtles? Teal sea turtles?
"Ceterum censeo Islam esse delendam."
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Check your wallet!
Guess that means the female turtles won’t be getting any headaches for awhile
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.