Tag: nesting

Crawling into Nesting Season

Posted on | by Matthew Humphrey

With May 1st marking the official start of turtle nesting season along the Georgia coast, the Georgia Sea Turtle Center (GSTC) is already busy patrolling Jekyll Island’s causeway for diamondback terrapins and beaches for nesting sea turtles.

DIAMONDBACK TERRAPINS

The GSTC and Jekyll Island Foundation (JIF) donors have partnered for nearly 10 years in diamondback terrapin rescue, research, and implementation of various protection methods during nesting season. These efforts focus on decreasing terrapin road mortality rates. The GSTC’s diamondback terrapin patrol team routinely drive the causeway in search of nesting mamas crossing the road and inspecting nest boxes for similar signs. Recently, JIF and ANIMEX, a new partner, donated fencing materials that were installed on either side of the entrance to Jekyll’s causeway, adding one more component used to help decrease terrapin roadway mortality rates.

SEA TURTLES

And along the beaches these ancient reptiles emerge from the ocean to begin nesting as early as May. Fertile turtles crawl slowly to the dunes, enter a trance as their eggs drop into the sand, laying over 100 ping-pong ball-like eggs under the cover of darkness. Then, the GSTC Sea Turtle Patrol Team jumps into action gathering measurements, identification information, and ensuring the nest is protected from predators and human disturbances. The data collected helps inform local, regional, and international conservation efforts.

Jekyll Island visitors hoping to catch a glimpse of this once-in-a-lifetime experience can join GSTC educators under the stars by registering for an Evening Turtle Walk or Ride with Night Patrol on select nights in June and July. There’s no guarantee a nesting turtle will appear, but the evening promises to make the night memorable!

The GSTC hospital and patrol teams continue to work diligently to rescue and rehabilitate these gentler creatures. Investments of any size are welcome and appreciate. GIVE NOW.

Here before you know it!

Posted on | by Matthew Humphrey

By Ben Carswell, JIA Director of Conservation and Sustainability

This year, 2022, marks the 75th anniversary of the establishment of Jekyll Island State Park. And yet, many visitors to Jekyll Island never know that this unique place contains more than just the Island itself. In fact, by the time one slows to make the turn from Highway 17 onto the Downing Musgrove Causeway, they have already crossed into its welcoming boundaries. The six miles of causeway to follow offers expansive views across nearly 7,000 acres of tidal marshlands brimming with biological diversity and dotted with forested marsh hammock isle-lets, all of which lies within the Park’s boundary. This lesser-known side of Jekyll Island, known as the “back-barrier marshes” covers more area than the Island itself and supports over half of the Wildlife Priority Species identified in the Jekyll Island Conservation Plan.

Like its State Park boundary, the work of the Jekyll Island Foundation doesn’t stop at the foot of the bridge onto the Island. The Jekyll Island Conservation Plan sets forth the following management priorities for the Causeway and back-barrier marshes:

  1. Minimize vehicle strike mortality of Wildlife Priority Species
  2. Reduce immigration of exotic-invasive plants and animals
  3. Prevent loss of elevation due to erosion or compaction of soils surrounding the Causeway
  4. Promote habitat diversity
  5. Maintain a safe and enjoyable experience for drivers and cyclists that affords opportunities to appreciate the natural beauty and abundance of wildlife evident upon arriving

The excellent work spearheaded by the Georgia Sea Turtle Center to better understand and protect Diamondback Terrapins along the Causeway is a shining example for how Foundation dollars can make a difference towards achieving these goals. Another For the Record piece this month highlights the latest big step in efforts to help terrapins avoid roadway hazards. And coming soon, thanks to generous donor support through the Foundation, the Jekyll Island Authority will be able to add a mile of new native wildflower meadow along the east end of the Causeway, making arrival to the Island even more welcoming, not just for human visitors, but for pollinating bees and butterflies as well.

The Causeway and back-barrier marshes are a truly special part of the Jekyll Island experience that connects the Island with the broader community of Brunswick and the Golden Isles, mutually strengthening the well-being of many. The next time you turn onto the Jekyll Island Causeway, take your time, breath in the fresh air, brake for terrapins, and think about giving to the Jekyll Island Foundation. Your contributions go a long way towards empowering better stewardship of every corner of Jekyll Island State Park.   

Nesting Loggerheads

Posted on | by Matthew Humphrey

By Davide Zailo, Research Specialist, and Dr. Tom Radzio, Research Ecologist

Here on Jekyll Island, the unofficial start of summer is heralded by the arrival of nesting loggerhead sea turtles. These behemoths of the ocean can reach over 300 pounds and lay up to seven nests of 100+ eggs each in a single season. Some turtles will place all their nests on Jekyll Island whereas others will distribute them among multiple islands. Nesting females are at least 25 years old and very important to the survival of their species. Counting and studying nests allows us to estimate numbers of adult females and determine whether our loggerhead population is increasing, stable, or declining. The long-term data suggest a slowly increasing population, rebounding from dangerous lows at the turn of the century.

Monitoring loggerhead nesting and performing conservation-oriented studies is the responsibility of the JIA Georgia Sea Turtle Center Research Team, which includes two staff members and a talented and dedicated group of AmeriCorps Service Members. This summer, the research will include a new component, work to better understand how nest temperature influences egg development and hatchling characteristics, such as size. After hitting the books and training hard for two months, AmeriCorps Service Members start patrolling the beach in early May.  This is an exciting time as the anticipation of finding the first nest of the season builds day by day!  

From May to July, the GSTC Research Team patrols Jekyll Island’s beaches throughout the night to encounter as many nesting loggerhead sea turtles as possible. These ‘Night Patrols’ allow the team to study females directly, collect nest data, and provide unforgettable experiences for guests in our nighttime Education programs. To ensure that nesting is not interrupted, researchers carefully watch emerging turtles from a distance until they start to lay eggs. At that point, females enter a ‘nesting trance,’ which allows them to be safely examined.

At 6:00 am, a smaller team takes over to perform daily morning surveys. These ‘Dawn Patrols’ cover all of Jekyll Island’s beaches for a thorough accounting of nests laid during the previous night. Dawn Patrol crews also perform a daily check of each nest to document its progress throughout incubation, a process that requires about 50-65 days, depending on nest temperature. Five days after hatchlings emerge, the nest is carefully excavated to assess egg hatching success and collect other information. In addition to valuable data, excavations provide wonderful opportunities for public engagement, including the chance to see a live hatchling.  

These efforts would not be possible without your continued interest and support. We thank you as we strive to learn more about our native wildlife and build towards a more sustainable future. Here’s to a happy and productive turtle nesting season!

To support the ongoing work of the Georgia Sea Turtle Center, click HERE.