SURVEY FOR HAEMOPROTEUS SPP., TRICHOMONAS GALLINAE, CHLAMYDOPHILA PSITTACI, AND SALMONELLA SPP. IN GALAPAGOS ISLANDS COLUMBIFORMES

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Abstract
Endemic free-ranging Galapagos doves (Zenaida galapagoensis) and introduced rock doves (Columba livia) were surveyed in several islands of the Galapagos archipelago to establish sample prevalence of hemoparasites, Trichomonas gallinae, Chlamydophila psittaci, and Salmonella species. A Haemoproteus sp., the only hemoparasite identified, was found in 89% of the Galapagos doves sampled but not in the rock doves. Trichomonas gallinae was detected by polymerase chain reaction in 44% of rock doves from San Cristobal but in none of the Galapagos doves. Chlamydophila psittaci was detected from cloacal swabs in 6% of the Galapagos doves but in none of the rock doves sampled. All positive cases of C. psittaci occurred on Española, where the crude sample prevalence was 24%. A polymerase chain reaction-based Salmonella test failed to show evidence of this organism from any birds sampled.

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