Author Archives: Andrew Rypel

About Andrew Rypel

Andrew L. Rypel is a Professor and the Peter B. Moyle and California Trout Chair of coldwater fish ecology at the University of California, Davis. He is a faculty member in the Department of Wildlife, Fish & Conservation Biology and Director of the Center for Watershed Sciences.

Evolution of Drought Response and Resilience in California’s Cities

Posted on September 24, 2023 by Andrew Rypel

By Erik Porse Drought is a regular event in California. In recent decades, California has experienced five prolonged drought periods (1976-77, 1987-1992, 2007-09, 2011-16, 2020-22). Urban water agencies have responded with investments in supply and demand management measures, which have … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , | 1 Comment

Future Ancestors of Freshwater Fishes in California

Posted on September 17, 2023 by Andrew Rypel

By Peter B. Moyle The Challenge We are living in the Anthropocene, an era being defined by global mass extinctions caused by humanity. While on-going and impending extinctions of birds and other terrestrial vertebrates gain the most attention, the situation … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , , | 1 Comment

Hidden links between aquatic and terrestrial ecosystems: part 3 – Eel River

Posted on September 10, 2023 by Andrew Rypel

By Nicholas Wright This blog is the third and final of a three part series on ecological subsidies that appeared throughout summer ’23. In California’s north coast, the Eel River winds its way through hills with shady slopes carpeted in … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , , , | 1 Comment

Wetlands on the Edge

Posted on September 3, 2023 by Andrew Rypel

By Andrew L. Rypel It’s really easy to overlook and undervalue wetlands. Some are small or just don’t look very important. Others are enormous, and cause flooding issues for homeowners and growers. Some might even think wetlands are gross, worry … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , | 2 Comments

Shell-shocking Details About Freshwater Mussel Reproduction

Posted on August 20, 2023 by Andrew Rypel

By Andrew L. Rypel, Miranda Bell Tilcock, and Christine A. Parisek One of our favorite aspects of teaching is (occasionally) being able to really surprise a student. Many of the fun nature facts folks pick up nowadays come from TV, … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , , , | 4 Comments

Hidden links between aquatic and terrestrial ecosystems: part 2 – Sacramento River

Posted on August 13, 2023 by Andrew Rypel

By Nicholas Wright Running through the Central Valley’s patchwork of yellow, green, and brown farmlands is the deep blue of California’s largest river–the Sacramento. Once a much wider river, meandering across the flat valley floor, the Sacramento has been straight-jacketed … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , | Leave a comment

A “Peak” into California’s Alpine Lakes and their Food Webs

Posted on August 6, 2023 by Andrew Rypel

By Christine A. Parisek “The Sierra Nevada is five hundred miles of rock put right. Granite freed by glaciers and lifted through clouds where water, frozen and fine, has scraped and washed it into a high country so brilliant it … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , | 2 Comments

Marsh on the move: bringing environmental education into the classroom

Posted on July 23, 2023 by Andrew Rypel

By Josie Storm, Christine Parisek, Brian Williamshen, Caroline Newell, Sarah Yarnell, Kim Luke, Jake Shab, and Erin Tracy This spring, a group of researchers and students at the Center for Watershed Sciences (“Watershed”) organized a community engagement event at a … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , | 3 Comments

Hidden links between aquatic and terrestrial ecosystems: part 1 – Sierra Nevada lakes

Posted on July 16, 2023 by Andrew Rypel

By Nicholas Wright This blog is the first in a three part series on ecological subsidies that will appear throughout summer and fall ’23. It’s easy to think of aquatic and terrestrial organisms inhabiting entirely separate worlds–they experience distinct biophysical … Continue reading →

Posted in Uncategorized | Leave a comment

Putah Creek’s rebirth: a model for reconciling other degraded streams?

Posted on July 8, 2023 by Andrew Rypel

By Emily Jacinto, Nann A. Fangue, Dennis E. Cocherell, Joseph D. Kiernan, Peter B. Moyle, and Andrew L. Rypel It’s hard to look at native fishes in Putah Creek and not grin a little. Be it a Sacamento Pikeminnow (below), … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , , , | 1 Comment