How removing invasive buffelgrass from Arizona forests can reduce wildfire threats Saguaro and eight other southwestern national parks will also use some of the money to build a bullfrog-removal ...

Hence in western states, bullfrogs have acquired an unfavorable reputation. In California and Arizona, several species of endangered frogs and salamanders, already facing the environmental hazards ...

Now, with added pressure from nonnative fish and bullfrog predation, habitat destruction ... In the early to mid-1800s, the human population increased significantly in southern Arizona, New Mexico, ...