animal populations


Using Song Meters to Count Frog Populations

California Red-legged Frog Photo Credit: G. Fellers, U.S. Geological SurveyCalifornia Red-legged Frog Photo Credit: G. Fellers, U.S. Geological Survey

Conservationists are using cameras, acoustic sensors, and other audio recording devices to isolate the sounds of the red-legged frog among the cacophony of other nocturnal amphibians in the Watsonville Slough in Santa Cruz County.