That Reptile Blog – Reptile, Amphibian and Exotic Pet Care and Information

Herpetologists at Panama’s Smithsonian Tropical Research Institute have uncovered a here-to-fore unknown form of communication among frogs. Using robotic frogs, infra-red lights and accelerometers, they have established that male Red-Eyed Treefrogs (Agalychnis callidryas) compete by shaking their bodies, which in turn vibrates the plant stems upon which they are perched.

Vibration Contests

Writing in the May 20, 2010 edition of Current Biology, researchers speculate that the vibrations sent through plant stems enable other male frogs can access the plant shaker’s intent, size and status. It appears that the frogs’ vocal calls may also vibrate plants, but further research is needed.

Additional studies are also being planned to determine if other herps, birds or mammals utilize vibration-based communication (invertebrates are known to do so). Read More »

The widespread Green Frog (Lithobates/Rana clamitans) often provides aspiring herpetologists with an introduction to frog-keeping.  Please see Part I of this article for more on its natural history.

Status in the Wild

Although fairly common throughout much of its range, in some places the Green Frog is impacted by habitat loss due to shoreline development and the introduction of Bass, Carp and other fishes, which consume eggs and tadpoles.

In recent years, deformed Green Frogs have been found in ever-increasing numbers.  The cause is unknown, but pesticide or other chemical pollution is suspected.  Farm ponds usually have a higher incidence of deformed individuals than do urban or rural habitats.  Green Frogs are regulated as a game species in several states, as they are collected for the food trade (frog’s legs) and for use as fishing bait (ahh!). Read More »

Please see Part I of this article for the exciting story behind the “re-discovery” of Australia’s Gold-Spotted Bell Frog (Litoria castanea), which was assumed by herpetologists to have been  extinct since the 1970’s.  Today I’d like to discuss my experiences breeding a close relative that sometimes appears in the pet trade, the Green and Gold Bell Frog (Litoria aurea). Read More »

In Part I of this article I wrote about the huge numbers of Spotted Salamanders, Spring Peepers, Tiger Salamanders, Wood Frogs and other amphibians that are right now (March/April, 2010) approaching and entering their breeding ponds.  Today I’ll highlight some important programs that you can become involved in if you wish to observe and help protect this wonderful yearly phenomenon. Read More »

Other amphibian enthusiasts and I have long trudged about on cold, rainy spring nights in pursuit of one of North America’s most amazing amphibian events – the annual migrations of Tiger Salamanders, Spotted Salamanders, Wood Frogs, Spring Peepers and other early spring breeders.  Laughed at even by other nature enthusiasts for our odd passions (birders, for example, get to watch Yellow Warblers nesting in blossom-laden trees on warm May mornings!), we are now having our day – plummeting amphibian populations worldwide are causing folks to take notice…and action. Read More »