In the heart of the Archie Carr National Wildlife Refuge (ACNWR), a 34-acre stretch of conservation land, known as the Barrier Island Sanctuary, was renamed on April 26 in honor of the late biology professor Llewellyn “Doc” Ehrhart (1942–2022). This newly named sanctuary recognizes his groundbreaking research on sea turtle ecology and coastal conservation.
Hosted by the Brevard County Parks and Recreation Department’s Environmentally Endangered Lands (EEL) Program, in cooperation with the Sea Turtle Conservancy, the ceremony took place in the sanctuary’s visitor center and featured the unveiling of a new roadside sign bearing Ehrhart’s name, followed by a reception celebrating his life’s work and lasting impact on marine wildlife and habitat conservation.
Surrounded by the coastal landscapes overlooking the sandy beaches of Melbourne, Florida, Ehrhart’s family, friends, former students, local officials and community members gathered to pay tribute and celebrate his enduring legacy.
Raymond Mojica Jr., land management superintendent for the EEL program, opened the ceremony describing Ehrhart as a true ecologist whose extensive research was pivotal to establishing of the ACNWR and the newly renamed Doc Ehrhart Sanctuary.
“Ehrhart was a full-fledged ecologist and the decision to honor him was made so that people could learn about his life and contributions over the years,” Mojica says. “His work gathering long-term data sets on sea turtle ecology is rare in the natural history world — and that’s how good decisions are made. Anyone can take a single snapshot of what plants and animals are in place, but to do that over the long term is rare and should be celebrated.”
For more than 50 years, Ehrhart advanced scientific understanding of sea turtle ecology and the coastal ecosystems of Brevard County. His research helped secure permanent nesting grounds along the refuge, now recognized as one of the most important nesting sites for loggerhead sea turtles in the Western Hemisphere and for threatened green sea turtles in North America.
One of Ehrhart’s most significant conservation successes, made possible through the data he gathered, was helping the green sea turtle populations recover.
“The recovery of green turtle nesting in this refuge is one of those rare conservation stories,” Mojica says. “When these surveys first started, they were only finding a few dozen nests a year. For various reasons, the numbers were low. Now, we’re seeing more than 20,000 nests a year. In 40 years, the population has recovered significantly and that’s something worth honoring and sharing with the public.”
Blair Witherington, a research scientist with Inwater Research Group and a former student of Ehrhart, served as the event’s emcee. He discussed Ehrhart’s research and his influence on others.
“Today, we’re honoring an influential man. He mentored so many of us and inspired countless others who never met him,” Witherington says. “This refuge, and what it represents today, is the result of his work and dedication to stewardship.”
The sanctuary’s visitor center showcased educational exhibits on sea turtle ecology and coastal ecosystems, along with a display of his memorabilia prepared for the day of the event.
Early in Ehrhart’s career, the importance of this nesting beach wasn’t fully understood. But after years of diligent surveying by Ehrhart and his students, its value and the critical need to preserve it became clear.
“Day after day, year after year, Ehrhart and his students ran along the beach at Archie Carr, tallying nesting turtles,” Witherington says. “Over time, those numbers revealed just how extraordinary this site is. It’s the Mount Everest of sea turtle nesting beaches — and we only know that because of diligent, long-term data collection that may seem mundane but, cumulatively, is absolutely instrumental for conservation efforts.”
Ehrhart’s passion extended beyond sea turtles. He was also deeply interested in small mammals and dedicated to sharing his love of wildlife with others.
“Doc firmly believed people care about what they understand,” says Ashley Ehrhart, his daughter, who also spoke at the ceremony. “He brought school kids, college students and political leaders to see and experience the sea turtles and wildlife here. He inspired people to protect natural spaces and species — and some even went on to work in conservation and became his colleagues.”
An important part of Ehrhart’s legacy, the sea turtle nesting surveys, continues under the supervision of Kate Mansfield, professor of biology at UCF and director of the UCF Marine Turtle Research Group.
“Ehrhart would have been thrilled with this honor. He loved the barrier island deeply. While he ended his career as a sea turtle biologist, he began studying small mammals — so he always saw the bigger picture beyond just the beach,” Mansfield says. “I’m excited to share the connection between Doc, our lab, and this coastal landscape with future graduate students and interns. I hope it inspires the next generation of conservation biologists and shows that conservation efforts can succeed.”
The sanctuary that now bears his name is a tribute to Ehrhart’s impact and Witherington shares that it will inspire future generations to connect with this landscape he helped protect.
“I’m always eager to tell Doc Ehrhart’s story, not just to honor his memory, but because it shows how one person can shape history and this place,” Witherington says.
