Regions

California

States L2 Landing Page Tabs

Filter Total Items: 362
A screenshot of the March 2016 newsletter from WERC.
Date Published: October 21, 2016

USGS WERC Ecology Research Update: March 2016

USGS Western Ecological Research Center newsletters are posted on our blog. Check back for a rundown of new research and events on ecology and wildlife science in California and Nevada. 

This photo of a Pacific sheath-tailed bat is the last good photo of this bat from Aguiguan in existence.
Date Published: August 1, 2016

Ecology of Insect-eating Bats

Bats are the only flying mammals that are active mostly at night and occur on all continents except Antarctica. Bats are ecologically diverse, with a range of species that specialize in feeding on fruit, nectar, blood, fish, small mammals, and insects. However, of the more than 1,100 known species of bats on Earth, the majority specialize in feeding on insects. In the United States for example...

a birder on a bridge looking at the birds
Date Published: July 26, 2016
Status: Active

HDgov: Multi-agency Website for Human Dimensions of Natural Resources

HDgov is an interactive and mobile-responsive online portal to interagency, academic, and non-government resources focused on the human dimensions of natural resource management. The web portal provides easy access to tools, publications, data, and methods that help ensure that the people side of natural resources is considered throughout the entire natural resource management process. The...

A crowd of people in a National Park.
Date Published: July 26, 2016
Status: Active

National Park Service Visitor Spending Effects

The National Park Service (NPS) manages the Nation’s most iconic destinations that attract millions of visitors from across the Nation and around the world. Trip-related spending by NPS visitors generates and supports a considerable amount of economic activity within park gateway communities. USGS economists collaborate with the National Park Service social science program to estimate NPS...

A cutthroat trout. Photo by James Roberts, USGS.
Date Published: July 21, 2016

Using Quantile Regression to Investigate Ecological Limiting Factors

Unexplained heterogeneity in statistical models of animal responses to their physical environment is reasonable to expect because the measured habitat resources are a constraint on—but not the sole determinant of—abundance, survival, fecundity, or fitness. The ecological understanding and reliability of management predictions based on animal habitat models can be improved by shifting focus ...

Migratory Bird Hunting Stamp
Date Published: July 21, 2016
Status: Active

North American Waterfowl Management Plan

The ultimate success of North American Waterfowl Management Plan (NAWMP) depends on maintaining relevance to stakeholders and society. In order to be relevant, a first step is to better understand what people value in regard to waterfowl and their habitats. Without this information, NAWMP population, habitat, and people objectives may not reflect stakeholder and societal values; and management...

The sunset on the main city beach in Laguna Beach, CA.
Date Published: July 19, 2016

Quantitative and Statistical Research Collaboration

Mathematical and statistical models are powerful research tools that play several important roles in conceptualizing and understanding the structure and dynamics of complicated ecological systems, including developing mechanistic hypotheses pertaining to ecological systems, designing studies that elucidate ecosystem structure and function, and extracting information from data.

A California Condor flying with a GPS device on its wing.
Date Published: June 27, 2016

Using Cell Technology to Track Species Movement

The Information Science Branch explored and developed ways to track species locations using a standard cellular phone network. This technology provides more tracking data at a faster rate and lower cost than traditional satellite tracking systems. The initial implementation of this approach currently provides support for the California Condor recovery program and is being extended to include...

Contacts: Tim Kern
homes damaged by hurricane Sandy on Fire Island, New York
Date Published: April 13, 2016

Understanding Coastal Change

Scientists perform a range of studies that document, assess, and model coastal change, risk, and vulnerability. Studies include historical shoreline change, the geologic structure and history of coastal regions, sediment supply and transport, sea-level rise, and how extreme storm events affect rates and impacts of coastal change.

Devastation of the coastal city of Banda Aceh, Indonesia, after the 2004 Indian Ocean tsunami.
Date Published: April 13, 2016

Geologic Hazards and Catastrophic Events

We study the distribution and hazard potential of coastal and submarine events such as earthquakes and submarine landslides and associated tsunami potential, hurricane induced coastal inundation, extreme storms, sea-level rise and oil and gas spills. We also model development to help evaluate and forecast coastal hazard probability and occurrence.

Methane hydrate
Date Published: April 13, 2016

Ocean Resources for America's Needs

Our scientists conduct research studies focused on geologic mapping, sampling and understanding of mineral and energy resources and studies of the geologic setting and processes to inform renewable energy development offshore.

Image: Treasures of the USGS Library: Rare Book Room
Date Published: April 12, 2016
Status: Active

USGS Library

The USGS Library, managed by CSAS&L, supports all fundamental scientific research conducted within USGS. It serves both internal and external customers with comprehensive access to literature, data, and information necessary understand USGS mission areas and make critical decisions about how to proceed with research initiatives and investigations in the earth and natural sciences.

Filter Total Items: 315
Screen shot of the NSDI node for SIR 2010-5193
September 20, 2011

This dataset was created in support of a study focusing on groundwater resources in the Great Basin carbonate and alluvial aquifer system (GBCAAS). The GBCAAS is a complex aquifer system comprised of both unconsolidated and bedrock formations covering an area of approximately 110,000 square miles. The aquifer system is situated in the eastern portion of the Great Basin Province of the western US.

Screen shot of NSDI node for HA694C
January 1, 2009

This data set consists of hydrographic area and major flow system boundaries and polygons delineated at 1:1,000,000-scale for the Great Basin.

Screen shot of NSDI node for SIR 2004-5155
November 8, 2004

This dataset consists of digital geologic data for the Dry Valley Hydrographic area, Nevada and California. It was compiled from individual 1:250,000-scale geologic data for Washoe County, Nevada, 1:62,500-scale geologic data for the Chilcoot and Doyle 15' quadrangles in California and the results of field mapping within the study area in 2004. 

Filter Total Items: 1,137
Men stand on a boat wearing safety gear and they are recovering damaged instrumentation from the water using cables and ropes.
March 21, 2017

Recovering instrument package from Monterey Canyon

On March 21, 2017, the sediment trap from this instrument package (deployed the previous October into Monterey Canyon) is gone and the mounting frame is mangled, having been exposed to several significant turbidity currents in one deployment. 

Photo of scientist climbing an island off the coast of Big Sur
March 15, 2017

WERC Big Sur Deployment

Scientists from the USGS Western Ecological Research Center deploy to Big Sur to study seabird populations.

USGS hydrologic technician stands in waist-high waters of a flooded Santa Maria River while taking streamflow measurements
March 1, 2017

Santa Maria River Flooding

A USGS hydrologic technician takes streamflow measurements during flooding of the Sisquoc River, a tributary of the Santa Maria River, near the town of Garey in Santa Barbara County. 

Photo of shoreline with very little sandy beach. Heavy equipment is  piling up large boulders (rip rap) along the eroded shore
February 28, 2017

Armoring the shore at Goleta Beach

Installing large boulders as rip rap to armor the shore against further erosion at Goleta Beach in Southern California. The tide is very low (negative).

photo of bare rocks exposed below cliffs at low tide along a shoreline.
February 28, 2017

Exposed bedrock at low tide

Exposed bedrock on the beach, below the University of California, Santa Barbara.

row of palm trees along a low cliff behind a narrow beach with very little sand
February 28, 2017

Beach loss and armoring at Goleta Beach

Beach loss and armoring at Goleta Beach, very low (negative) tide

long stretch of beach, with row of houses teetering on the edge of the cliff above beach. Bare rocks exposed & no sand on beach
February 28, 2017

Exposed bedrock at Isla Vista beach

Bedrock exposed at low tide along the beach at Isla Vista, California

house perched at the top of cliff edge above beach.
February 28, 2017

Exposed bedrock at Isla Vista

Exposed bedrock on the beach during very low (negative) tide at Isla Vista, California

Map showing depth of a very intricate bay and delta system color-coded to enhance central bay channels and tidal channels.
February 27, 2017

San Francisco Bay and Delta DEM

High-resolution (10-meter per pixel) digital elevation model (DEM) of the Sacramento-San Joaquin Delta, using both bathymetry and topography data relative to current modern datum of North American Vertical Datum of 1988 (NAVD88). This DEM is the result of collaborative efforts of the U.S. Geological Survey (USGS) and the California Department of Water Resources (DWR).

January 31, 2017

What's Drifting Beneath Kauai's Ocean?

Residents and visitors both revel in Kauai’s lush landscape, and beneath its seascape. However, it’s underwater where things don’t look so healthy. Scientists from the U.S. Geological Survey put together a detailed picture of the physical environment of the coral reefs at Makua Beach. Understanding just what these reefs are exposed to and for how long, may help explain why

...
two men standing in a boat tied up to a dock
January 31, 2017

Readying a sonar-equipped boat for mapping

USGS scientists readying a sonar-equipped boat to map the ocean bottom near Santa Cruz, Calif.

person standing up riding a personal watercraft across small ocean swells, with buildings and a long pier in the background
January 31, 2017

Sonar-equipped personal watercraft mapping bathymetry.

A sonar-equipped personal watercraft mapping the bathymetry underwater near Santa Cruz, Calif.

Filter Total Items: 906
USGS
February 25, 2013

The movie "The Impossible" graphically depicts destruction caused by the 2004 Indian Ocean tsunami which resulted in catastrophic loss of life and property – are similar, equally destructive events likely to occur in the Pacific Northwest?

Meeting between California Emergency Management Agency, CalVO, and ...
February 21, 2013

Many of California's young volcanoes pose a threat to people and property.

USGS
February 11, 2013

Arsenic, uranium, fumigants and nitrate were detected at high concentrations in untreated groundwater at depths in the aquifer system typically used for public water supply in the Madera County region of California’s San Joaquin Valley.

USGS
January 29, 2013

Lake Mead National Recreation Area's water quality is good, the sport fish populations are sufficient, and the lakes provide important habitat for an increasing number of birds. 

USGS
January 18, 2013

A century of scientific creativity and innovation has allowed seismologists to "see" into the outer layers of our planet, revealing the deep properties of the Earth's crust.

USGS
January 9, 2013

Inorganic elements - arsenic, boron, fluoride, and five other inorganic elements - were detected at high concentrations in 35 percent of untreated groundwater used for public water supply in the desert region of southern California. In contrast, human-made organic chemical constituents and nitrate were found at high concentrations in less than 1 percent of the desert region’s aquifers.

USGS
December 10, 2012

MENLO PARK, Calif. — Exciting discoveries are spurring research to uncover hidden secrets deep within South Pacific tropical forests.

USGS
November 30, 2012

USGS Science at AGU

SAN FRANCISCO — From over well over 500 abstracts by USGS presenters at this year’s American Geophysical Union conference, we’ve selected some of the newest, most exciting topics that USGS scientists will explore at AGU. Tips are presented in topic areas, chronologically with room numbers, session numbers and a summary.

USGS
November 28, 2012

MENLO PARK, Calif. —New insights into the differences between fire ecologies of the Chihuahuan and Mojave Deserts in the southwestern United States are coming through the use of terrestrial Light Detection and Ranging, or lidar, technology. Studies by the U.S. Geological Survey show that while fire is detrimental to some areas of the desert, it is beneficial to others. 

USGS
November 23, 2012

MENLO PARK, Calif. — Holiday shoppers can pick up free gift wrap now from the U.S. Geological Survey and California Geological Survey’s Maps and Publications Sales Office at our new location on the Menlo Park campus.

USGS
November 9, 2012

MENLO PARK, Calif. — Mountain environments are cauldrons of climatic harshness, exhibiting sharp topographic, vegetative, and climatic gradients, providing scientists with a natural laboratory for studying pikas to use as a model for assessing species vulnerability to warming temperatures. 

USGS
October 22, 2012

MENLO PARK, Calif. — In early August, the Mars Science Laboratory rover known as "Curiosity" landed successfully to begin its 23 month mission of searching the Martian surface for evidence of environmental conditions capable of supporting microbial life.