Yellowstone Cougars: Dying From the Plague

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About 6% of mountain lion deaths between 2005 and 2014 were due to the plague, according to new research. (Courtesy of the National Park Service, Public Domain)

The Plague Has Been Quietly Killing Yellowstone Cougars for a Decade

by Theresa Machemer/Smithsonianmag.com

A nine-year study of cougars in the Yellowstone National Park has found that nearly half of the big cats they tracked were infected with the plague-carrying bacteria Yersinia pestis at some point, according to a paper published last month in Environmental Conservation.

The Y. pestis bacteria is behind the Black Death, the mid-1300s epidemic of bubonic plague that in five years killed over 20 million people in Europe. These days, only about seven people catch Y. pestis each year in the United States. The bacteria lives in the soil, gets picked up by fleas living on rodents, and infects other creatures on its way up the food chain. The new evidence in cougars, also known as pumas and mountain lions, shows how flexible and dangerous the pathogen is in different hosts.

The study was conducted on cougars in the southern Greater Yellowstone Ecosystem, specifically in Jackson Hole, the valley east of the Grand Teton mountain range and south of Yellowstone National Park. “You start to get a clear picture of how hard it is to be a mountain lion in Jackson Hole,” biologist and co-author Howard Quiqley tells Mike Koshmrl of Wyoming News. “If you get to be an adult mountain lion …read more:

 

Biography
Carol graduated from Riverside White Cross School of Nursing in Columbus, Ohio and received her diploma as a registered nurse. She attended Bowling Green State University where she received a Bachelor of Arts Degree in History and Literature. She attended the University of Toledo, College of Nursing, and received a Master’s of Nursing Science Degree as an Educator.

She has traveled extensively, is a photographer, and writes on medical issues. Carol has three children RJ, Katherine, and Stephen – two daughters-in-law; Suzy and Katie – two granddaughters; Isabella Marianna and Zoe Olivia – and one grandson, Alexander Paul. She also shares her life with husband Gordon Duff, many cats, and two rescue pups.

Carol’s Archives 2009-2013
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