And Then There Were None: The Demise of Desert Bighorn Sheep in the Pusch Ridge Wilderness. By Paul R. Krausman; Foreword by William W. Shaw; illustrated by Bethann Garramon Merkle. Albuquerque (New Mexico): University of New Mexico Press. $65.00. xvi + 229 p.; ill.; index. ISBN: 9780826357854 (hc); 9780826357861 (eb). 2017.

2018 ◽  
Vol 93 (2) ◽  
pp. 148-149
Author(s):  
Marco Festa-Bianchet
Keyword(s):  
New Mexico ◽  
Bighorn Sheep ◽  
Desert Bighorn Sheep ◽  
University Of New Mexico

scholarly journals Desert Bighorn Sheep: Changes in Genetic Variation Over Time and the Impact of Merging Populations

2014 ◽  
Vol 5 (1) ◽  
pp. 3-13 ◽  
Author(s):  
Philip W. Hedrick ◽  
John D. Wehausen
Keyword(s):  
Genetic Variation ◽  
New Mexico ◽  
Monitoring And Evaluation ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Mexican Population ◽  
Desert Bighorn Sheep ◽  
Two Generations ◽  
The Impact ◽  
Over Time

Abstract Founder effects, genetic bottlenecks, and genetic drift in general can lead to low levels of genetic diversity, which can influence the persistence of populations. We examine genetic variation in two populations of desert bighorn sheep Ovis canadensis from New Mexico and Mexico to measure change over time and evaluate the impact of introducing individuals from one population into the other. Over about three generations, the amount of genetic variation in the New Mexico population increased. In contrast, over about two generations the amount of genetic variation in the Mexican population decreased by a great extent compared with an estimate from another Mexican population from which it is primarily descended. The potential reasons for these changes are discussed. In addition, although both populations have low genetic variation, introduction of Mexican rams into the New Mexico population might increase the amount of genetic variation in the New Mexico population. Overall, it appears that management to increase genetic variation might require substantial detailed monitoring and evaluation of ancestry from the different sources and fitness components.

Habitat use by female desert bighorn sheep in the Fra Cristobal Mountains, New Mexico, USA

2005 ◽  
Vol 51 (2) ◽  
pp. 77-83 ◽  
Author(s):  
Peter D. Bangs ◽  
Paul R. Krausman ◽  
Kyran E. Kunkel ◽  
Zachary D. Parsons
Keyword(s):  
New Mexico ◽  
Habitat Use ◽  
Bighorn Sheep ◽  
Desert Bighorn Sheep
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