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Brucellosis Vaccine Testing

The Greater Yellowstone Interagency Brucellosis Committee (GYIBC), including USGS, FWS and NPS, has agreed to the elimination of brucellosis in the Greater Yellowstone Area. Brucellosis is a reproductive disease in elk and bison in the Greater Yellowstone Area (GYA). Vaccination is considered one of the primary methods for management of More...

  • two bear cubs

The Risk of Transmission from Brucellosis Infected Fetuses in the Environment

Brief summaries and preliminary results of two research studies: 1) the disappearance rate of cattle and bison fetuses in the Greater Yellowstone Area, and 2) the persistence of RB51, as a model for field strain Brucella, in the Environment. For the study involving RB51, a live vaccine strain RB51 was used as a model for field strain survival More...

  • bear carrying away aborted cattle fetus

Flying by Night: USGS Scientists Put Technology to Work on Bats

How do you study something that flies under cover of darkness? This question persistently troubles scientists investigating the mysterious lives of bats. The 45 bat species that occur in the continental United States play important roles in U.S. ecosystems as major predators of flying insects and pollinators of desert plants. Bats also play an More...

  • gloved hands holding bat that has radio transmitter attached to its back

Mountain Lion Research on the Colorado Front Range

As one of one of the big three charismatic predators in North America, mountain lions top the list of national park management challenges that require balancing the preservation of species with protection of park visitors. In Rocky Mountain National Park and its environs, USGS Fort Collins Science Center (FORT) scientists are collaborating with More...

  • Mountain lion in a tree