Yellowstone wolf (Canis lupus) denisty predicted by elk (Cervus elaphus) biomass

Canadian Journal of Zoology
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Abstract

The Northern Range (NR) of Yellowstone National Park (YNP) hosts a higher prey biomass density in the form of elk (Cervus elaphus L., 1758) than any other system of gray wolves (Canis lupus L., 1758) and prey reported. Therefore, it is important to determine whether that wolf–prey system fits a long-standing model relating wolf density to prey biomass. Using data from 2005 to 2012 after elk population fluctuations dampened 10 years subsequent to wolf reintroduction, we found that NR prey biomass predicted wolf density. This finding and the trajectory of the regression extend the validity of the model to prey densities 19% higher than previous data and suggest that the model would apply to wolf–prey systems of even higher prey biomass.

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Publication type Article
Publication Subtype Journal Article
Title Yellowstone wolf (Canis lupus) denisty predicted by elk (Cervus elaphus) biomass
Series title Canadian Journal of Zoology
DOI 10.1139/cjz-2015-0002
Volume 93
Issue 6
Year Published 2015
Language English
Publisher Canadian Journal of Zoology
Contributing office(s) Northern Prairie Wildlife Research Center
Description 4 p.
First page 499
Last page 502
Country United States
State Idaho, Montana, Wyoming
Other Geospatial Yellowstone National Park
Online Only (Y/N) N
Additional Online Files (Y/N) N
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