Western Ecological Research Center


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

Filter Total Items: 74
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: 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...

Date published: March 20, 2018

The Birds, The Bees, and...The Skunks?

It's the first day of spring! Don't be surprised if you see young skunks scampering around California's inland marshes with an ear tag ID and a lightweight GPS collar -- it's for science.

Date published: February 28, 2018

Have You Seen This Mosquito? Aggressive Mosquito Species Vanishes from Pacific Island

The Asian tiger mosquito can carry dread diseases like Zika, and yellow and dengue fever. After it vanished from Palmyra Atoll, an island in the tropical Pacific, USGS researchers and partners set out to find out why.

Date published: February 22, 2018

USGS and NASA Team Up to Help Scientists Study the “Social Networks” of Wildlife

In the future of wildlife tracking, sea otters have their own social network.

Date published: February 21, 2018

New USGS-Led Study Could Help Pacific Wetlands Adapt to Sea Level Rise

SAN FRANCISCO BAY, Calif. — A new study published Wednesday in Science Advances introduces an innovative tool to help resource managers preserve Pacific coastal wetlands from rising sea levels.