First grizzly instrumented with radio collar

7/18/2018

Photo: Grizzly No. 40 "Marian" (pictured) was the first grizzly successfully fitted and instrumented with a radio collar by Frank & John Craighead. Photo Credit: Frank & John Craighead

The first successfully radio instrumented grizzly bear in Yellowstone National Park. Grizzly No. 40 or called "Marian" by John & Frank Craighead. The bear was named after the engineers' wife who designed the collar transmitter.
The Craighead brothers were the pioneers of grizzly bear research in the Greater Yellowstone Ecosystem. Their successful implementation and deployment of radio collars on grizzly bears revolutionized the ability to track free roaming populations of animals in the wild.
Photo credit: Frank & John Craighead

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Tyler Brasington is a native born and raised Pennsylvanian, yet proud current Wisconsin resident. He graduated from the University of Wisconsin-Whitewater with a B.S. in Environmental Science. Currently, Tyler is pursuing his masters in Natural Resources with the University of Wisconsin-Stevens Point. He has worked in Yellowstone National Park under the guidance and supervision of Dr. George Clokey and Dr. Jim Halfpenny.

Tyler is a current member of the International Association for Bear Research and Management, The Wildlife Society, and Polar Bears International.

Research and academic work has focused on different aspects of grizzly bear ecology and behavior. Ongoing research: spatial ecology and identification of females with cubs, and integrated approaches to monitoring grizzlies in Yellowstone and Grand Teton National Parks. Side projects include: selected life histories of park bears, bear viewing etiquette and responses.

Currently Tyler has worked as a Park Ranger with the Bear Management Office in Grand Teton National Park (GTNP). He previously worked as a Biological Science Technician with the US Geological Survey, National Wildlife Health Center and as a Biological Science Technician (Fisheries/AIS) in GTNP, and served as a volunteer, assisting the Bear Management Office in Yellowstone National Park.

Disclaimer: The information and views expressed on this page do not necessarily represent the views of the Department of Interior, US Geological Survey, National Park Service or the United States Government.

The Greater Yellowstone Grizzly Project
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First grizzly instrumented with radio collar

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