Yes. Perhaps the most well known is the Cane Toad. It was originally introduced from South America to control cane sugar pests, and was accidentally released in Florida. It preys on and competes with native animals and is toxic to predators.
The Cuban treefrog is an invasive species in Florida. They actually eat native frog species, and their tadpoles compete for space with native frogs’ tadpoles. They also cause problems for humans in urban areas, such as ruining birdhouses, their excrement creates stains, clog drains, and their large size can allow them to short circuit utility switches and cause power outages.
The American Bullfrog (Rana catesbieana) is native in the Eastern United States, but has been introduced to the western United States. It is destoying the populations of native frogs because it outcompletes them for space and food.
Another invasive frog is the African Clawed Frog (Xenopus), which is found in many pet stores – sold in the fish section. At times these frogs are released to the wild, either by accident as they escape from the tank or on purpose because someone no longer wants to take care of them. They can live in warmer climates.
In one of my biochemistry classes we learned that the Xenopus invasion of a pond in San Francisco was due to frogs that were either “set free” or escaped from a lab. These frogs are pests because they can decimate local fish and turtle species who have not evolved natural defenses against them. However, they are useful in research as their eggs are quite large and experiments can be performed quite easily to aid developments in areas such as cancer research.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC