It was nearly a year ago that Ruston Hartdegen, the Dallas Zoo’s curator of Herpetology, found himself driving deep into the pine woods of the DeSoto National Forest on a mission to save a species on its last leg – the dusky gopher frog.
While the origional 180 tadpoles that Hartdegen picked up have now metamorphed into frogs, the Zoo’s work is not done yet. The dusky gopher frog is still considered critically endangered with populations endemic to only Glen’s Pond, Mike’s Pond, and McCoy’s Pond within the DeSoto National Forest in Mississippi.
These spotted amphibians will remain in human care at the Zoo until the U.S. Fish and Wildlife Service has finished developing a full recovery plan for the species. Though the Zoo will retain a number of the frogs as part of the Species Survival Plan program, the U.S. Fish and Wildlife Service is working to identify suitable places for the experimental re-introduction of this species, possibly beginning in 2018.
“The current remaining wild populations are very limited and under intense monitoring. Previous habitats where animals have been extirpated are not likely to recover in a short period of time,” said Hartdegen.
In late January, it was Bradley Lawrence, the Zoo’s reptile and amphibian supervisor, who found himself making the nine hour drive back to
the remote Mississippi coast to pick up more tadpoles – but transporting a critically endangered species is no easy task, even the second time around.
The Zoo received four groups of thirty-two tadpoles – over 120 dusky gopher frogs in total. Each group of tadpoles comes from a separate egg mass, meaning that these groups are all of different parentage. In order to drive the tadpoles to the Zoo, these groups were each placed in five gallon buckets filled with water. Using an air pump, oxygen was run to each of the containers for the duration of the trip.
“I tried desperately to keep the tadpoles from shifting around on the drive back. I stopped every couple of hours to check on them,” said Lawrence. “Ultimately, they all made it here safely.”
Like their predecessors, these dusky gopher frogs will be part of the Species Survival Plan program. In the future, some will likely be used in
breeding efforts while others may be released back into their native longleaf pine wetlands – an ecosystem that has been devastated by continued habitat loss. But conservation efforts shouldn’t start and end at the Zoo gates; there’s plenty that you can do at home.
“Many of the world’s amphibians can be helped in the same way whether you live in Texas, Central America, Africa, or wherever: conserve water, don’t pollute, and recycle,” says Lawrence. “Water pollution, loss of habitat, and depleted ground water all hurt amphibian populations.”
Check out these conservation tips from our Green Team that you can follow at home in order to help save the dusky gopher frog.