Remember from our previous Sea Turtle Update, that Carol Anne Nichols, a sea turtle technician with Georgia Department of Natural Resources, has been hard at work all summer monitoring and protecting the sea turtle nests on Little St. Simons Island.
So far 2013 has been another great summer for sea turtle nesting on the Georgia Coast. Last year, previous nesting records were blown out of the water with a total of 2,244 nests. There was no lull this year–we have already surpassed that with 2,286 nests! Although nesting is slowing down, before it’s all over with we could add even more to that number.
Little St. Simons Island broke our own record last year with 116 nests, and we are dangerously close to breaking that record again this year. Our most recent nest was laid on July 30th, but since then we have found two undetected nests (nests that we missed when they were laid.)
As nesting winds down, hatching is taking off! We are having a couple nests hatch each evening. The hatchlings prefer to emerge from the sand under the cover of darkness to begin their treacherous journey out to the open ocean. When the tiny turtles crawl to the surface of the sand, they look for the light of the moon reflecting off the ocean to guide them in the right direction. Acting solely on instinct, they set out on a journey–a journey, for the females that will eventually lead back to this same spot.
Male Loggerhead sea turtles will never come up on a beach again in their lifetime, but females will go through the same process their mothers have, crawling out of the ocean and into the dunes to lay her own eggs. Because of a genetics project that has been going on in Georgia and neighboring states for the past several years, we are able to get a better picture of each individual’s nesting habits and the relatedness of the nesting females. We’ve had four females that have used our beach in 2009, 2011, and have come back again this year (2013). To learn more about the genetics research, click here.
As nests hatch, we dig each one up to take an inventory of hatched versus unhatched eggs. Some guests have been lucky enough to participate in these excavations, and even lucky enough to find a few live hatchlings. This morning, we watched five healthy hatchlings crawl to the ocean! Of the nests that have been excavated thus far we have had a hatching success rate of 72.5%.
In the coming weeks, we will have many more nests hatching and inventoried. Stay tuned for the final tally of this year’s sea turtle season.