Historical records and intensive field surveys 1975-77
provided information on the population history, ecology, and
current status of wolves (Canis lupus) in Yellowstone National
Park and vicinity. Wolves occurred in unknown but seemingly
low densities during the latter 1800s in several areas of
Yellowstone where they were controlled periodically until...
The greater sage-grouse, an iconic ground-dwelling bird of the West, has experienced significant population declines during the past 50 years from habitat loss. The U.S. Fish and Wildlife Service (FWS) designated sage grouse in 2010 as a candidate for listing under the Endangered Species Act (ESA).
In September 2015, the...