Western Ecological Research Center

News

Click on the articles below to read about the latest WERC scientific discoveries.

Filter Total Items: 82
Date published: September 24, 2018

USGS Scientists Find Success in New "Real Estate" for Waterbirds

There’s hot new real estate for wildlife in south San Francisco Bay, and a report from USGS biologists shows that the waterbirds are flocking in.

Date published: September 13, 2018

Secrets of Suisun Marsh's Birds of Prey

Did you know that the USGS is studying raptors in California? Biologists with the USGS Western Ecological Research Center are hard at work in the field, learning more about the ecology of Northern Harriers and their interactions with migratory waterfowl of concern to the U.S. Fish and Wildlife Service.

Date published: August 28, 2018

Toad Crossing Ahead: New Study Tests Elevated Roads as Underpasses for Rare Toad

Many amphibians are either too small or too slow to avoid an oncoming car. For some populations of the Federally threatened Yosemite toad (Anaxyrus canorus), this has meant increased mortality from vehicle strikes in addition to other threats from disease, drought, and habitat loss.

Date published: August 6, 2018

Invasive Crayfish Increase Number of Mosquitoes in Southern California Mountains

A new study published in Conservation Biology ties the presence of invasive crayfish to higher numbers of mosquito larvae within the Santa Monica Mountains, CA. The area is only about an hour away from the heart of Los Angeles, and is home to diverse wildlife, which already face threats...

Date published: July 13, 2018

Reducing Mercury Loads in The Cosumnes River

The Cosumnes River watershed has seasonal, non-point source hotspots for total mercury and methylmercury production, which discharge to the Sacramento-San Joaquin River Delta in north-central California. To reduce mercury loads to the Delta, researchers created open-water deep cells at the downstream end of wetlands.

Date published: July 3, 2018

At This Military Base, A Haven for the Endangered Least Bell’s Vireo

SOUTHERN CALIFORNIA – It may not be the most intuitive place for an endangered species to recover, but the staff of the U.S. Marine Corps Base Camp Pendleton have worked hard to protect habitat for the least Bell’s vireo (Vireo bellii pusillus).

Date published: July 2, 2018

Born in a Los Angeles zoo, released into the San Gabriels, a rare frog bounces back (The LA Times)

SAN GABRIEL MOUNTAINS, CA — Last week, biologists from the USGS Western Ecological Research Center (WERC) and partnering agencies released hundreds of endangered, mountain yellow-legged frog tadpoles back to their historic habitat in southern California.

Date published: June 8, 2018

WERC Waterfowl Science at the 2018 Suisun Marsh Field Day

“If we find a duck with one of those, we say it’s wearing jewelry,” said a visitor, gesturing to the shining metal bands on the table. The bands in question were part of a USGS Western Ecological Research Center (WERC) outreach display at the 2018 Suisun Marsh Field Day in Suisun, CA.

Date published: May 25, 2018

WERC Scientists Receive Prestigious Awards for Research on Songbirds, Mountain Ecosystems

This month, we recognize two WERC scientists for their decades of research on endangered songbirds, and the geology and hydrology of mountain ecosystems.

Date published: May 17, 2018

New USGS Study Paves a Path Forward for Reptiles, Amphibians, and Roadways

In a new study, U.S. Geological Survey (USGS) scientists ranked more than 160 species and sub-species of reptiles and amphibians in terms of their vulnerability to vehicle strikes and habitat fragmentation from roadways. Their results are published in the journal Landscape Ecology....

Date published: April 13, 2018

A Day in the Life of a WERC Seabird Scientist

In the featured photo, WERC scientists search for potential nesting habitat of seabirds like the Ashy Storm-Petrel (Oceanodroma homochroa) on False Klamath Rock off the coast of California.

Date published: April 13, 2018

Salmon and a Warming River

WERC biological science technician Shannon Waters is part of a research team studying the effects of warming water temperatures on Chinook salmon. On Tuesday, April 3rd, she visited the California State University, Sacramento to talk to students and the interested public about the team's findings...