Migratory birds are highly dependent on major moist soil seed (MSS) as a food resource in the Central Valley of California, a major North American flyway.
How bad can these drought conditions get? How much hay should I buy? How many animals should I sell or relocate to another area with a forage surplus? Land managers face these questions during a drought. Livestock operations are often restricted to dry areas with unreliable rainfall, which are generally less suitable for farming.
Big Oaks National Wildlife Refuge (NWR) in Indiana hosts a variety of habitat types, including extensive grassland complexes and intact forests.
In the early 2000s, Pictured Rocks National Lakeshore, Michigan, was infested by Beech Bark Disease (BBD).
Sagebrush ecosystems provide valuable services to society, including recreational and economic opportunities like hunting and fishing, energy development, and livestock grazing. Sagebrush ecosystems also provide habitat for wildlife, natural systems for carbon sequestration, and resources for human habitation.
The primary objectives of the Katahdin Woods and Waters National Monument (KAWW),Maine, mapping project were to provide the following: an accurate, tested, and up-to-date vegetation map; a vegetation classification standardized to the U.S. National Vegetation Classification and supported by vegetation plot data collected within the Monument; and a field key to vegetation for the entire monument.
The Delaware River Basin was chosen as a test bed for integrating USGS water and land use research to advance understanding on the interactions and feedbacks among climate, water availability, and land cover. Fundamental interactions can be observed from historical data and simulated using scenarios for changes in land use using projections in precipitation and temperature patterns.
From May to September 2018, Kīlauea volcano experienced its largest eruption in more than 200 years. The eruption drained the summit lava lake and shallow magma reservoir, covering the volcano’s lower East Rift Zone in 35 square-kilometer of lava. Successive collapse events at the summit resulted in a collapsed crater more than 500-meter deep.
The USGS Cascades Volcano Observatory utilizes a multi-rotor unmanned aircraft system (UAS) outfitted with a miniature USGS-developed MultiGAS sensor to measure quiescent gas emissions above the 2004–2008 lava dome within the crater of Mount St. Helens. These new technologies allowed the team to characterize degassing at Mount St.
Optical satellite observations were used to quantify ground-surface displacements resulting from the 2019 Ridgecrest, California, earthquakes. Specifically, optical images from WorldView-1, WorldView-2, and WorldView-3 collected before and after the 2019 Ridgecrest earthquakes were accessed via the ©NextView license.