Volume 18, Number 3—March 2012
Research
Causes of Pneumonia Epizootics among Bighorn Sheep, Western United States, 2008–2010
Table 1
Population | Status† | Population size | % Dead or culled‡ |
---|---|---|---|
East Fork Bitterroot, MT | Pneumonic | 200–220 | 50 |
Bonner, MT | Pneumonic | 160–180 | 68 |
Lower Rock Creek, MT | Pneumonic | 200 | 43 |
Anaconda, MT | Pneumonic | 300 | 50 |
East Humboldt/Ruby Mountains, NV | Pneumonic | 160–180 | 80 |
Yakima Canyon, WA | Pneumonic | 280 | 33 |
Spring Creek, SD | Pneumonic | ≈40 lambs born | 95 lambs |
Hells Canyon, OR and WA | Pneumonic | ≈170 lambs born | 77 lambs |
Quilomene, WA | Healthy | 160 | 2 |
Asotin Creek, WA | Healthy | 100 | 0 |
*MT, Montana; NV, Nevada; SD, South Dakota; WA, Washington; OR, Oregon.
†Pneumonic, populations with confirmed epizootic pneumonia restricted to lambs (Spring Creek and Hells Canyon) or not age restricted (all other pneumonic populations); healthy, populations with no evidence of epizootic pneumonia.
‡Estimated percentage of the population that died or was culled during the epizootic.
Page created: February 16, 2012
Page updated: February 16, 2012
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