Category Archives: Resource Management

Bumble Bees May Soon Be Eligible for Listing under the California Endangered Species Act

What is the current listing status for California bumble bees? On May 31, 2022, the Third Appellate Court District in California ruled that “…a terrestrial invertebrate, like each of the four bumble bee species, may be listed as an endangered or threatened species under the [California Endangered Species Act],” under the definition of ‘fish.’ This

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3 Reasons you Need a Protected Species Observer to Ensure Marine Project Success

From November 1 through March 31, manatees migrate south from along the Eastern Seaboard, seeking warmer waters off the coast of Florida and along the Gulf of Mexico. During these five months, manatee presence in the area increases significantly, so many in-water construction activities must be halted. In 2021, an Unusual Mortality Event (UME) was

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7 Tips to Help You Manage Spring Biology Surveys this Year

Every spring biology survey is slightly different. While some species—plants and butterflies to name two—have variable survey seasons, others have well-established or federally mandated survey seasons. Missing a survey window can adversely impact a project’s schedule. Working closely with project biologists can help identify biological constraints early in the process, helping a project stay on

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Buena Vista Creek Restoration Improves Ecosystem Services and Fosters Community Stewardship

Throughout California, riparian habitat and water resources are threatened by the effects of climate change and continued population growth. Buena Vista Creek in Oceanside, California is one such place. The creek has been highly fragmented due to development and contains engineered creek segments, which has degraded native habitat, decreased native riparian and freshwater wetlands, and

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Foothill Yellow-Legged Frog Listing Status under the California and Federal ESA

On December 28, 2021, the USFWS published a proposed rule in the Federal Register listing four of six Distinct Population Segments (DPSs) of the foothill yellow-legged frog (Rana boylii) under the Endangered Species Act. This follows the 2020 listing by the California Fish and Game Commission of five of six clades of the foothill yellow-legged

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Hermes Copper Butterfly Listed as a Threatened Species: What that Means for Your Projects

On December 21, 2021, the U.S. Fish and Wildlife Service (USFWS) officially published the final listing rule for the Hermes copper butterfly (Lycaena [Hermelycaena] hermes), designating it as a threatened species under the Endangered Species Act (ESA). As the species is endemic to San Diego County and northern Baja California, Mexico, the final rule designates

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Protecting Plants while Protecting the Planet: Approaches to Bolster Narrowly Endemic Plant Species

To address and reverse global effects caused by a rapidly changing climate, various industries have emerged that are leading efforts to reduce greenhouse gas emissions though alternative energy production. However, sometimes alternative energy projects which are focused on issues global in scale, run into issues protecting sensitive narrow endemic plant species at the local scale

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Research Archaeologist Loukas Barton Publishes on Solving the “Protein Problem”

Have you ever wondered where the Paleo diet comes from? At its best, the idea behind it comes from the analysis of a global database of hunter-gatherer diets. At its worst, it comes from imaginary notions that all our ancestors ate meat, all the time. In reality, research from around the world reveals that, on

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Dudek Archaeologists Publish Articles in Literary Honor of “Cowboy Ecologist” Robert L. Bettinger

Dudekians Micah Hale, PhD (Senior Project Manager) and Loukas Barton (Archaeologist) were both students of Robert L. Bettinger, and this year, the Center for Archaeological Research at Davis published Cowboy Ecologist: Essays in Honor of Robert L. Bettinger a collection of articles in his honor, two of which are authored by Dr. Hale and Barton,

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The Remarkable Restoration of the Bay Checkerspot Butterfly in Edgewood Preserve

On an afternoon in Redwood City, California in 2002, Dr. Stu Weiss documented the last Bay Checkerspot butterfly to fly in Edgewood Preserve. The butterfly was extinct from the area. Following its extinction, Dr. Weiss was determined to change the butterfly’s fate and understand what caused its massive collapse from an area where it used

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