United States of America

Filter Total Items: 3,179
Date published: May 28, 2020
Status: Active

Diet and Reproductive Phenology in a Recently Established Population of Invasive Cuban Treefrogs (Osteopilus septentrionalis)

WARC researchers are exploring relationships between body size, time of year, sex, and reproductive development to better understand the reproductive phenology of the New Orleans population of Cuban treefrogs compared to Florida populations.

Date published: May 28, 2020
Status: Active

Alligator Snapping Turtle (Macrochelys temminckii) Research in Louisiana in Support of the Species Status Assessment and Listing Decision by the U.S. Fish and Wildlife Service

WARC researchers are investigating individual movement, growth, and population dynamics of alligator snapping turtles in a southwest Louisiana creek.

Date published: May 28, 2020
Status: Active

Capture-Mark-Recapture of Treefrogs at Bayou Teche National Wildlife Refuge

WARC researchers are gathering amphibian data to better understand the impact of natural disasters on treefrog populations and examine post-event processes.

Date published: May 28, 2020
Status: Active

Remote Sensing and Dryland Management

Drylands (areas characterized by low precipitation, high evapotranspiration, and low soil moisture) occupy around 40-45% of the earth’s surface. Many drylands contain high biodiversity and provide essential ecosystem services (e.g., livestock forage, agricultural production, pollination) for nearly 1/3 of the world’s population who live in drylands.  Given limited precipitation and other...

Date published: May 26, 2020
Status: Active

LCMAP and NLCD: Complementary Data for Understanding the Geography of the United States

Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1 science products provide unprecedented monitoring of past changes occurring in land cover and condition across the conterminous U.S. over more than 30 years at an annual timestep.

Date published: May 20, 2020
Status: Active

Numerical Models of the Physics Underpinning Induced Earthquakes

The USGS uses computer simulations to evaluate the physical relationships between fluid injection (or extraction) and earthquakes. We can only indirectly study these relationships using observations, so computer simulations help us gain a better physical understanding for the processes that are most likely causing these earthquakes. Scientists can also use such simulations to understand...

Date published: May 20, 2020
Status: Completed

Hazard Estimation for Induced Earthquakes

In 2016, 2017, and 2018, the USGS released ...

Date published: May 20, 2020
Status: Active

Observational Studies of Induced Earthquakes

In response to sudden changes in seismicity that are potentially induced by human activity, the USGS may deploy temporary seismic stations to better understand the earthquakes. These deployments typically consist of 2-15 seismometers placed in the immediate vicinity of the seismicity.

Date published: May 19, 2020
Status: Active

DETAILED AQUIFER MAPPING OF THE SPRINGVILLE, N.Y. AREA Erie, Cattaraugus, and Wyoming Counties, New York

Introduction Public-water systems at Springville and Yorkshire/Delavan, N.Y. along Cattaraugus Creek draw from local groundwater resources and serve about 5,500 people (U.S. EPA SDWIS database). The remainder of the population obtains water from domestic wells, many of them completed in glacial aquifers. A Cattaraugus Creek tributary valley (Buttermilk Creek) to the south is the site of the...

Date published: May 19, 2020
Status: Active

DETAILED AQUIFER MAPPING OF THE MALONE, N.Y. AREA (Adirondack foothills and St. Lawrence lowlands transect) Franklin County, New York

Introduction The Village of Malone, Franklin County, New York is located along the Salmon River where it exits the northern foothills of the Adirondack Mountains and flows northward across the St. Lawrence Lowlands until its confluence with the St. Lawrence River. The public water supply of the Village of Malone serves a population of 13,200 (U.S. EPA SDWIS database), which includes three...

Date published: May 18, 2020
Status: Completed

Mineral Resources Program Scientist Receives Meritorious Service Award

Dr. Suzanne Nicholson received the U.S. Department of Interior's second highest honorary award—the Meritorious Service Award— In recognition of her scientific leadership and noteworthy contributions to the Mineral Resources Program of the U.S. Geological Survey.