For several years now, since our lengthy drought dried their habitats and wildfires swept over their swampland strongholds, I have been unable to find the interesting little carpenter frog,
Rana virgatipes, in Florida.
Jake Scott joined me in the search a couple of years ago but despite the return of a heavier rainfall, higher water levels, and a resurgence of the sphagnum in the acidic locales preferred by this pretty little ranid, we continue to fail.
This little ranid was never widespread in Florida. It was restricted to the northeastern portions of the state in the southward drainage from Georgia’s Okefenokee Swamp. Our searches have taken us into some very remote areas, many new for us but all looking like ideal habitat for carpenter frogs. On these searches we have seen many amphibian species -- pig frogs, southern leopard frogs, southern toads, oak toads, eastern spadefoots, and at least a half dozen species of hylids -- as well as many taxa of reptiles. We’ve been in the field by day and by night. We’ve waded the tepid ankle to waist deep waters on moonless nights, on moonlit nights, and during the daylight hours. No carpenters!
Even in times of comparative climatic normalcy, these shallow waters and sluggish waterways fluctuate enough to probably qualify as ephemeral. But I do know that despite these seemingly inhospitable conditions, the carpenter frog has occasionally bred in Florida.
During several summers I have seen the frog in amplexus, found its egg-masses, and collected their tadpoles.
But the success was all pre-drought. It seems probable that the carpenter frogs ride the Okefenokee overflow southward to northeastern Florida and are secure while the sphagnum prairies are replete with water, but when water levels drop, this frog seems to disappear or at least become a non-vocalizer -- I don't know which.
The area where I found them for years pre-drought is now again devoid of water, has suffered a cover loss due to wild fires, and looks glum. The second area Jake and I checked looks a bit better and probably still contains a population that happened to be non-vocal when we were there yesterday.
At least I'll hope so.
Author, photographer, and columnist Richard Bartlett is one of the most prolific writers on herpetological subjects in the 20th century. With hundreds of books and articles to their credit, Richard and his wife Pat have spent over four decades documenting reptiles both in the field and in captivity. For a list of their current titles, please visit their page in our bookstore. |
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