Species of Eimeria from the thirteen-lined ground squirrel, Spermophilus tridecemlineatus , from Wyoming |
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Authors: | Robert S Seville Diane M Thomas Russell Pickering Nancy L Stanton |
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Abstract: | Five species of the coccidian genus Eimeria ( E. beecheyi prevalence = 17.9%], E. callospermophili-morainensis 28.6%], E. larimerensis 16.1%], and E. bilamellata 3.6%]) were recovered from 56, 13-lined ground squirrels ( Spermophilus tridicemlineatus ) collected from two sites in eastern Wyoming. Two squirrels from one site were also passing an unidentified polysporocystic coccidian. Infected squirrels were found to harbor from one to three species simultaneously. Previously these same eimerian species were found infecting sympatric populations of Wyoming ground squirrels. ( Spermophilus elegans ) and white-tailed prairie dogs ( Cynomys leacurus ) at one of the sites; it is suggested that the exchange of these generalist parasite species among co-occurring sciurid hosts contributes to the consistent prevalence levels reported in Wyoming ground squirrels. |
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