Opportunistic Surveillance of Captive and Free-Ranging Bighorn Sheep (Ovis Canadensis) in Colorado, Usa, for Transmissible Spongiform Encephalopathies

Abstract

BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Mountain Lions (Puma Concolor) Resist Long-Term Dietary Exposure to Chronic Wasting Disease

“…Wild type mountain lions appear less susceptible to CWD-associated prions currently in Colorado than to BSE-associated prions, perhaps a further reflection of the strain differences between BSE and North American CWD prions (Bruce et al 1997;Barria et al 2014). Collectively, the findings described here and in similar long-term studies with various species (e.g., Rhyan et al 2011;Williams et al 2018;Fox et al 2021) help to define the limits of the natural host range of CWD and identify apparent barriers to interspecies transmission.…”

Distinct mtDNA lineages in free‐ranging Ammotragus(aoudad) from the United States indicate multiple introductions from northern Africa

“…Of concern in the United States is the fact that aoudad are sympatric with native bighorn sheep ( Ovis canadensis ) (Simpson & Krysl, 1981 ). The potential for disease transmission and associated risks (e.g., epizootic hemorrhagic fevers, bluetongue, pneumonia, scrapie, and others; Candela et al, 2009 ; Cassmann et al, 2021 ; Fox et al, 2021 ; Hampy et al, 1979 ; Morawski et al, 2013 ; Richomme et al, 2006 ) and competition between aoudad and bighorn sheep (Barrett, 1967 ; McCarty & Bailey, 1994 ; Seegmiller & Simpson, 1979 ; Simpson et al, 1978 ) remains a high‐priority management concern.…”