The Economic Research Service (ERS) has been a source of major land use estimates in the United States for over 50 years, and the related U.S. cropland used for crops series dates back to 1910. The ...
The "Bernalillo Watershed/NRA: 1955-1989" dataset contains
information from a study of the Bernalillo Watershed, a semiarid
grassland. Data deals with vegetation dynamics, ecological
succession, and ...
The purpose of the "CPER--Long-Term Grazing Intensity Study" is
to measure long-term impact of three grazing intensities on
Description; 3 pastures, each 128 ha, grazed 1939-present ...
Little is known about the status of breeding
populations of ferruginous hawks (Buteo regalis)
within Idaho and North America. A program designed
to answer questions concerning the species status
The Snake River Birds of Prey National
Conservation Area has undergone massive habitat
changes since 1980. More than 50% of the shrub
habitat has been lost due to wildfires, resulting
in large stands ...