Our Mission

We are ecologists based at the Sierra Nevada Aquatic Research Laboratory who study lakes in California’s Sierra Nevada mountains. Our objective is to conduct rigorous science to solve management challenges in this iconic mountain range. Our research focuses on a broad range of topics, and includes studies at the population, community, and ecosystem levels. To provide the information necessary for sound management decisions, we employ long-term capture-mark-recapture studies, whole-lake experiments, and large-scale lake surveys. Working closely with agency scientists, we use results from these studies to guide the development and implementation of lake restoration and amphibian conservation  actions.


Technology aids conservation: Observing frog behavior in frozen lakes using ROVs.

“What do frogs do in winter?” That is a question we hear frequently. Meters-thick ice covers high elevation Sierra Nevada lakes for about nine months of the year. For an animal that spends summer days lounging on rocks in the sun, winter imposes a radical shift in lifestyle. But historically, we could not document frog …

2018 Mountain Lakes Research Group newsletter

We recently sent out our annual Mountain Lakes Research Group newsletter in which we summarize the highlights from our our research and conservation-related activities in 2018. We also discuss the funding challenges that we face, exacerbated by the prolonged shutdown of the federal government, and our fundraising plans for the future. If you would like …

Story on how scientists transport animals

The Conversation recently published a story about how scientists move butterflies, sea turtles, and frogs as part of conservation-related activities. The section on frogs features mountain yellow-legged frogs and was written by Mountain Lakes Research Group team member, Roland Knapp. Have a look.