Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown
Xochitl Rojas-Rocha (Former Employee)
Science and Products
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.
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...
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).
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.
This month, we recognize two WERC scientists for their decades of research on endangered songbirds, and the geology and hydrology of mountain ecosystems.
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....
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.
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...
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.
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.
In the future of wildlife tracking, sea otters have their own social network.
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.