Reptiles and Amphibians - invasive

American Bullfrog (Lithobates catesbeianus) on Jul 28, 2009

Submitter does not have a specimen

Description of specimen

Hear at night in Fanno Creek. Have not seen it.


Hi Bruce, thanks for your report. Bullfrogs are a major reason why young native turtles do not survive in Oregon wetlands. In some areas, they eat 100 percent of young turtles.

I know you don't own or manage the ponds, but you might find it interesting that bullfrogs can be controlled them by letting ponds dry up in late summer, scooping bullfrog egg masses out of the water, trapping tadpoles or gigging adults. You have to be very careful that you don't harm the native frogs or salamanders or their eggs.

To control bullfrogs, people can call the Oregon Department of Fish and Wildlife or the local county Soil and Water Conservation District. In the meantime, I'll forward this report on to ODFW.

Thanks for keeping an eye out for invasive species.

Lisa DeBruyckere
July 29, 2009, 1:46 p.m.