In my last post I reminisced about my childhood fascination with aquatic turtles. As a young hobbyist and amateur naturalist I had amassed a collection of these shelled reptiles to the dismay of my parents. Back then it seemed that with every coming year, I needed a bigger tank or pool to house my assortment of ancient, cold-blooded beasts–contemporaries of the dinosaurs. Some grew, but some certainly arrived larger than those existing residents who first made my house their home in previous years.
I’d like to think that I had created an educational exhibit for the neighbors as opposed to just a growing menagerie of wet herpetiles.
I now am much more cognizant of the impact the pet trade has on freshwater turtle conservation. Whether one is depleting wild populations or expanding the range of common species through introducing captive-born animals to the wild–the impact takes its toll.
In my previous post I somehow failed to mention one of the iconic conservationists who inspired my passion for herpetology and my novice attempt to curate of a collection of select herpetofuana.
Dr. Archie Carr was a naturalist, an iconic conservationist, and a highly esteemed herpetologist. His book So Excellent a Fishe: A Natural History of Sea Turtles introduced me to some of the most majestic creatures I have ever learned about–marine turtles. They are quite different from their fresh and brackish water cousins and perhaps a bit more graceful in the water.
I’m quite certain that I had seen a sea turtle in captivity prior to reading the book. Unfortunately, such a captive ambassadors commonly viewed in public–as important as they are–tell only a snapshot of the life history of these chelonians.
All 7 marine turtle species are threatened. The bulk of these threats are human-induced from pollution to loss of habitat. In fact, only a few large nesting sites for some of the species exist today. The hawksbill, green and loggerhead turtles comprise those with particularly marginal nesting grounds of good size. However, all marine turtles are recognized internationally as a species of conservation concern and thanks to some dedicated organizations efforts to save these turtles are making a difference.
I’d like to celebrate the 25th anniversary of the Jumby Bay Hawksbill Project, the longest running hawksbill sea turtle research program in the world. Supported by the Jumby Bay Island Company, the conservation project is embraced by indigenous people and visitors to the private island off Antigua’s coast. Antigua, itself, is an island in the West Indies.
I first learned about this project through the organization’s former Field Project Director, Seth Stapleton. Seth continues to work with the organization, but has gone on to study another pelagic, marine species–the polar bear–for his PhD.
Hourly census work is conducted on the nesting turtles during the patrols in conjunction with studies of nesting habitat and specifics regarding the size and condition of previously tagged individuals. Unmarked turtles receive a flipper tag and a notch in their carapace. All of this information helps the team “monitor the reproductive output, population status and demographics, and long-term trends of Jumby Bay’s hawksbill colony.”
WE5252 (pictured above) returned to sea at 5:30AM on June 30th, 2011 according to an entry in a JBHP blog post earlier this past summer. The update goes on to indicate that “preseason patrols in May revealed 8 nests, bringing the total to 56 nests.”
Studying nesting activity can be tedious, but it is critical to learning about the reproductive ecology of a hawskbill colony. There was good news overall. “Despite changes in beach landscape due to erosion and seaweed buildup in the off-season, turtles have been nesting more successfully this [2011 season]. So far, successful nest attempts have outnumbered unsuccessful attempts or ‘false crawls’, contrary to what has been shown in previous years. Turtles [nested] across all sections of Pasture Beach [this season], even where activity has traditionally been sporadic (e.g. the middle of the beach containing vegetation islands).”