Welcome to the
Foothill Yellow-Legged Frog
(Rana boylii) Workshop!
2025-05-09 | Elkhorn Slough RTEP
Ryan Peek | Sarah Kupferberg
Alan Striegle | Laura Patterson | Isaac Chellman

Instructors
Background
- Senior Environmental Scientist (Specialist), CDFW
- Postdoctoral Scholar, UC Davis
- Aquatic Scientist, USFS
- Fish & Wildlife Biologist, Stillwater Sciences
Research/Expertise
- Biodiversity Monitoring
- Conservation Genomics
- River Ecology / Geomorphology
- Data Science and Education
Natural History
- Amphibians have been on earth since the Devonian
- Worldwide declines of amphibians has only occurred in our lifetimes
- Aquatic ecosystems are at highest risk
- Amphibians form a link between the terrestrial and aquatic worlds
- Sentinel species like Foothill yellow-legged frogs integrate energy of ecosystems
- And can tell us much about the “health” of a system
Workshop Goals
- This is a broad overview of the most current information about this amazing species
- We don’t expect you all to be experts at the end, but rather, learn “where to look…”
- Through lectures and field time, you will learn the life history, breeding ecology, and habitat use of this species
- Field attendees will get direct experience doing surveys and evaluating habitat, as well as conducting egg mass surveys
Workshop Roadmap
- Natural and Unnatural History
- Breeding Timing & Plasticity
- Status Review and Listing
- Habitat
- Basic Ecology
- Survey Methods
- Conservation
Workshop Etiquette
Things to Do
- Act respectfully
- Ask for help in chat or “raise hand”
- Turn your camera on or off as desired
- Please mute yourself when not speaking

Welcome to the Foothill Yellow-Legged Frog ( Rana boylii ) Workshop! 2025-05-09 | Elkhorn Slough RTEP Ryan Peek | Sarah Kupferberg Alan Striegle | Laura Patterson | Isaac Chellman