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January 8, 2024

ESA Announces Promotions in Biological Resources and Water Teams

We are pleased to announce the promotions of Barbra Calantas, Paul Schlenger, and Sarah Spano....

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January 3, 2024

Environmental Science Associates Acquires Janicki Environmental

Acquistion expands ESA’s newly formed Fish and Aquatic Sciences Practice and adds key services for...

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October 30, 2023

Monitoring Aquatic Weed Control Methods to Preserve, Restore, and Enhance the Tahoe Keys Lagoons

While Lake Tahoe’s crystalline azure has lasted for eons, the changes wrought by past land...

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October 26, 2023

How Permanent Is Relatively Permanent? An Update on the Definition of Waters of the U.S.

The Federal Water Pollution Control Act of 1948 was the first major U.S. law to...

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March 27, 2023

On the Lookout to Protect Florida’s Treasured Crested Caracara

It’s a common sight across the US: a wake of vultures feeding on roadkill on...

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March 22, 2023

ESA Expands Biological Resources and Land Management Team in Northwest

ESA is pleased to announce the additions of Aaron Killgore, Anna Kopitov, and Jennifer Thomas...

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February 3, 2023

Where the Wild Things Roam: Creating Safer Crossings for Animals and Motorists

Promising new federal and state legislation is helping to fund much-needed wildlife crossing projects and...

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February 3, 2023

Collaborative Regional Partnerships Help Restore Habitats Along Freight Rail Corridors

Restoration is underway in Puget Sound to replace existing railroad embankments and culverts along a...

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August 4, 2022

Mark Dodero Joins ESA
as Senior Principal
Restoration Ecologist

Mark has more than 40 years of experience assessing, restoring, and managing diverse biological resources,...

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February 18, 2022

Reversing the Tide: Guiding Puget Sound Restoration Efforts to Save Migrating Salmon

The Local Guidance Document for U.S. Entities provides a detailed resource for local salmon recovery...

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October 29, 2021

Handle with Care: Guiding Bats to Safety in Florida

Bats are beneficial, often misunderstood creatures which play a vital ecological role in Florida and...

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October 21, 2021

ESA Expands Mitigation Service Offerings with Two Key Hires

Melissa Denena and Katie Dudney bring niche expertise to the firm’s Northern California Biological Resources...

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Tampa Bay HBMP aerial of project area
September 3, 2021

Historic Legislative Session Has Big Implications in Washington State

The Washington State Legislature passed a two-year $59 billion budget and several major pieces of...

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August 6, 2021

U.S. Army Corps of Engineers Regulatory Specialist Dr. Daniel Swenson Joins ESA

Based in the firm’s Los Angeles office, Daniel will work with clients and colleagues across...

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July 22, 2021

Jill Sunahara Named Director of Biological Resources and Land Management Group in Northern California

Jill Sunahara's more than 20-year career has focused on environmental compliance, regulatory permitting, and project...

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March 26, 2021

Fish Passage Projects Offer Instant Relief for Fish in the PNW

While the results of a fish passage project can be immediate, getting to the final...

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January 26, 2021

Working Clean: A Guide to Curbing the Introduction of Invasive Species

Whether you are a field biologist or a casual weekend explorer, it's important to learn...

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February 13, 2020

ESA Biologist Erika Walther Receives Salt Marsh Harvest Mouse Permits

One of the smallest, and arguably cutest, San Francisco Bay endemic species is the salt...

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