October 26, 2023
The Federal Water Pollution Control Act of 1948 was the first major U.S. law to...
News & Ideas
Biological Resources
March 27, 2023
It’s a common sight across the US: a wake of vultures feeding on roadkill on...
March 22, 2023
ESA is pleased to announce the additions of Aaron Killgore, Anna Kopitov, and Jennifer Thomas...
February 3, 2023
Promising new federal and state legislation is helping to fund much-needed wildlife crossing projects and...
February 3, 2023
Restoration is underway in Puget Sound to replace existing railroad embankments and culverts along a...
August 4, 2022
Mark has more than 40 years of experience assessing, restoring, and managing diverse biological resources,...
February 18, 2022
The Local Guidance Document for U.S. Entities provides a detailed resource for local salmon recovery...
October 29, 2021
Bats are beneficial, often misunderstood creatures which play a vital ecological role in Florida and...
October 21, 2021
Melissa Denena and Katie Dudney bring niche expertise to the firm’s Northern California Biological Resources...
September 3, 2021
The Washington State Legislature passed a two-year $59 billion budget and several major pieces of...
August 6, 2021
Based in the firm’s Los Angeles office, Daniel will work with clients and colleagues across...
July 22, 2021
Jill Sunahara's more than 20-year career has focused on environmental compliance, regulatory permitting, and project...
March 26, 2021
While the results of a fish passage project can be immediate, getting to the final...
January 26, 2021
Whether you are a field biologist or a casual weekend explorer, it's important to learn...
February 13, 2020
One of the smallest, and arguably cutest, San Francisco Bay endemic species is the salt...
November 4, 2019
Matthew Silva is a part of our Northern California Fisheries team consisting of 20 fisheries...
September 4, 2019
Environmental DNA (eDNA) is DNA collected from the environment—water, soil, and air—rather than directly from...
September 4, 2019
An interview with Bill Harrell, California Department of Water Resources (DWR), and Erika Lovejoy, Sustainable...
