United States of America

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Date published: June 11, 2020
Status: Active

PCMSC vessel San Lorenzo

Above, the view through the windshield of San Lorenzo reveals a perfect work day on the Sacramento-San Joaquin Delta near Rio Vista, California.

Date published: June 11, 2020
Status: Active

PCMSC vessel Parke D. Snavely

Information about the USGS Pacific Coastal and Marine Science Center's vessel Parke D. Snavely, acquired in November 2007.

Date published: June 8, 2020
Status: Active

PCMSC MarFac Team

Meet our team of fieldwork specialists at PCMSC's MarFac

Date published: June 5, 2020
Status: Active

Coastal Habitats in Puget Sound

A Pacific Northwest icon, Puget Sound is the second-largest estuary in the United States. Its unique geology, climate, and nutrient-rich waters produce and sustain biologically productive coastal habitats. These same natural characteristics also contribute to a high quality of life that has led to growth in human population and urbanization. This growth has played a role in degrading the Sound...

Date published: June 4, 2020
Status: Active

Interaction of Environmental Stressors and Batrachochytrium dendrobatidis (Bd) Pathogen Loads on Survival of Green Frogs (Lithobates clamitans)

The U.S. Geological Survey Amphibian Research Monitoring Initiative (ARMI) is using a combination of swabbing, non-lethal tissue sampling, soil and water sampling, and collection of a variety of other environmental variables to determine the relationships between the prevalence and pathogen load of Bd infection and environmental stressors on green treefrog survival.

Date published: June 4, 2020
Status: Completed

Framework for Examining Stream Ecosystem Health in Areas of Shale Gas Development—A Multi-Parameter Watershed-Based Case Study in Pennsylvania

In a case study of 25 headwater streams in Pennsylvania, no statistically significant associations were determined between shale gas development and geochemical tracers of produced waters or measures of microbial and macroinvertebrate community composition.  Although the results are specific to the region studied, the integrated biological and geochemical framework provides a tool for...

Date published: June 2, 2020
Status: Active

Soil Compaction and Erosion

Extensive off-highway vehicle (OHV) use on desert lands can directly and indirectly lead to human health problems and impact soil, vegetation, and wildlife habitat. Soil pulverization and loosening caused by OHVs contribute to dust hazards, and to respiratory illnesses and diseases (e.g., valley fever) in adjacent, downwind communities.  Repeated soil compaction by OHVs can also degrade...

Date published: June 2, 2020
Status: Active

Remote Sensing of Biological Soil Crusts

Biological soil crusts (biocrusts, photoautotrophic soil surface communities comprised of cyanobacteria, algae, bryophytes, lichens, and fungi, occur in drylands globally where they contribute to ecosystem functioning by increasing soil stability, reducing dust emissions, and modifying soil resource availability (e.g., water, nutrients) (Fig 1.3.1). Despite increasing recognition and interest...

Contacts: Miguel Villarreal, PhD, Caroline Ann Havrilla, PhD
Date published: June 2, 2020
Status: Active

PCMSC vessel Jewell

Above, Jewell is prepared for a day of sampling on Grizzly Bay

Date published: June 2, 2020
Status: Active

PCMSC Marine Facility (MarFac)

Learn about the USGS Pacific Coastal and Marine Science Center Marine Facility, or MarFac

Contacts: Timothy Elfers
Date published: June 2, 2020
Status: Active

Remote Sensing of Invasive Annual Grasses

One of the major ecological consequences of increasing global connectivity is the introduction, establishment, and spread of non-native species into new ecosystems. The rate and extent of biological invasions continues to increase globally, often at considerable environmental and economic costs. Once established, non-native species can transform ecosystems, complicating land management...

Date published: June 2, 2020
Status: Active

Remote Sensing of Energy Development

Oil and gas development across the western United States has increased substantially in recent decades, including within the Colorado Plateau. The Colorado Plateau is a high desert region of grasslands, shrublands, and woodlands and is home to a large number of world-renowned national and tribal parks and monuments (e.g., Grand Canyon, Zion, Bryce, Arches, Canyonlands, Monument Valley, and...