|Cane Toad (Rhinella marina)|
|Cane Toad tadpoles|
The problem is that although the species was introduced as a pest control method, they have become pests themselves in many of these areas. It is a large toad with a large appetite and will eat anything it can swallow. It has significantly impacted the local amphibian populations in some areas simply by eating and outcompeting the native frogs and toads.
|large Cane Toad|
But, it does have a place in the world. In its native range there are controls to its population that have evolved along with it. It isn't the Cane Toad's fault it is a problem, it is the fault of the men who transported it from its native range.
It is a native toad in Texas but is restricted to the southernmost counties along the Rio Grande.
|Adult Cane Toad|
The call of the Cane Toad is actually what you would expect for a huge toad. Toads generally have trilled calls. Smaller toads have faster, high-pitched trills and big toads have slower, low-pitched trills. The bigger the toad the lower pitched the trill. The trill of the Cane Toad is so slow and low pitched that it is drum-like. This individual was from north of Aguas Zarcas, Costa Rica.
Here's a slightly longer section of call from an individual near Caño Negro, Costa Rica.
Cane Toad call from Caño Negro, Costa Rica
Here's a call from an individual the Daintree National Park in northern Queensland, Australia.
Cane Toad call from Daintree National Park, Australia
© Chris Harrison 2014