Tom is a community ecologist studying how species declines and extinctions affect communities. With Roland Knapp, Ericka Hegeman, and agency collaborators, he works to develop conservation tools and strategies for endangered mountain yellow-legged frogs in California’s Sierra Nevada mountains. He is currently studying the interaction between frogs and mountain gartersnakes, and how predation impacts frog restoration efforts. Previously, Tom studied the consequences of mountain yellow-legged frog declines for aquatic insect communities and alpine lake diatom communities, and avian, lizard and human malaria. He resides in Bishop and San Francisco and rides bicycles and surfcraft. Ask Tom about the time he found a llama in Yosemite.