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USGS | 2020
Winter cover crops are an effective management practice for taking up residual nitrogen in the soil after summer crops are harvested, thereby reducing nitrogen losses to groundwater and soil loss to…
USGS | 2020
The USGS National Unmanned Systems Project Office (NUPO), in collaboration with the Denver Museum of Nature & Science, constructed a photogrammetric three-dimentional digital surface model (DSM)…
USGS | 2020
Barrier islands are dynamic environments. Under calm conditions, they are gradually shaped by currents, waves, and tides; during hurricanes and other extreme storms, they can evolve within hours to…
USGS | 2020
Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and…
USGS | 2020
Although extensive work has been devoted to understanding the role of fire in maintaining ecosystem functions in upland systems, little research has focused on understanding the impact of fire on…
USGS | 2020
The USGS Upper Midwest Environmental Sciences Center (UMESC) participated in a small subsection of a larger scope of work for the U.S. Army Corps of Engineers (USACE) led by staff at the University…
USGS | 2020
Microbial biofilm communities (comprised of bacteria, diatoms, protozoa, and fungi) inhabit the surface of intertidal mudflats and comprise a large proportion of shorebirds’ diets. Given their major…
USGS | 2020
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. Using Landsat satellite data, researchers…
USGS | 2020
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…
USGS | 2020
Big Oaks National Wildlife Refuge (NWR) in Indiana hosts a variety of habitat types, including extensive grassland complexes and intact forests. Grassland habitats, which are increasingly rare…
USGS | 2020
In the early 2000s, Pictured Rocks National Lakeshore, Michigan, was infested by Beech Bark Disease (BBD). The disease kills the American beech tree (Fagus grandidentata), one of the dominant tree…
USGS | 2020
Sagebrush ecosystems provide valuable services to society, including recreational and economic opportunities like hunting and fishing, energy development, and livestock grazing. Sagebrush ecosystems…