Unified Interior Regions

Wyoming

The Rocky Mountain Region ranges from the Colorado Rockies to the Western Deserts to the Great Plains. The Rocky Mountain Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

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States L2 Landing Page Tabs

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February 23, 2016

Getting the bear's weight

One of the first measurements taken is the bear’s weight using a quadpod and electronic scale. 

February 23, 2016

Getting set up

Biologists are very careful to keep the grizzly bear under shade and protected from the elements while they collect biological data.  Vital signs are monitored throughout the handling period. 

February 23, 2016

Close up

The kerchief over the grizzly bear’s eyes protects it from dust and debris and reduces visual stimulation. The small tubing in its nose, known as a nasal cannula, delivers oxygen to the animal while it is tranquilized.  

February 23, 2016

Assessing body fat percentage of grizzly bear

Field personnel use bioelectrical impedance to assess body fat percentage of captured bears.  The procedure is similar to how body fat is measured in humans and is based on the resistance of body tissues to the flow of a small, harmless electrical signal.  The electrical current is impeded more by fat tissues compared with tissues that are composed mostly of water, thus

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February 23, 2016

Fitting a radio collar

Biologists with IGBST and the National Park Service fit a grizzly bear with a radio collar.  Once a bear is radio collared, biologists can track its movements with telemetry.

February 23, 2016

Telemetry by air

Once a grizzly bear is radio collared, biologists can track its movements with telemetry via airplane.  The IGBST also used the latest telemetry technologies, which allows downloading of GPS data from the radio collar via satellites.

February 23, 2016

Telemetry by foot

Once a grizzly bear is radio collared, biologists can track its movements with telemetry on foot.   

Grizzly bear caching an elk carcass in Grand Teton National Park
December 31, 2015

Grizzly bear caching an elk carcass in Grand Teton National Park

A grizzly bear has cached an elk carcass in Grand Teton National Park. Scientists used DNA from hair samples collected from barbed wire to estimate whether the availability of carcasses associated with an elk hunting season resulted in temporary immigration of grizzly bears. 

Filtering water for eDNA sample collection in Yellowstone National Park between Lewis and Shoshone Lakes.
December 31, 2015

Filtering water for eDNA sample collection.

Filtering water for eDNA sample collection in Yellowstone National Park between Lewis and Shoshone Lakes.