Desert Bighorn Sheep Ram II
by Donna Greene
Title
Desert Bighorn Sheep Ram II
Artist
Donna Greene
Medium
Photograph - Digital Photography
Description
At their peak, North American bighorn sheep numbers were estimated at 2 million. Desert populations have since fallen to about 20,000 and Rocky Mountain populations are at about 45,000. Arizona's bighorn population, consisting of both desert and Rocky Mountain races, is estimated at 6,000 animals. The causes for this decline, which occurred primarily between 1850 and 1900, were competition with livestock for food and water and exposure to livestock associated parasites and diseases.
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January 1st, 2012
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