A rare case of Plasmodium (Haemamoeba) relictum infection in a free-living Red Knot (Calidris canutus rufa, Scolopacidae) |
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Authors: | Verónica L D’Amico and Allan J Baker |
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Institution: | (1) Centro Nacional Patag?nico, Bvard. Brown 3500, Puerto Madryn, 9120 Chubut, Argentina;(2) Department of Natural History, Royal Ontario Museum, Toronto, ON, Canada |
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Abstract: | The Red Knot (Calidris canutus rufa) is a Nearctic migrant shorebird that breeds in the Canadian Arctic and spends the winter season in coastal sites in South
America. A rare case of a blood protozoan was found by molecular analyses from an adult bird captured during spring migration
at the last refuelling stopover in Delaware Bay USA in 2006. The parasite was identified as Plasmodium
relictum belonging to subgenus Haemamoeba based on the shape of meronts, roundish gametocytes, and its position in the erythrocytes from the blood smears examination.
A partial cytochrome b sequence was a 100% match to a sequence of Plasmodium relictum, sequence Genbank accession number: id DQ659543.1 (lineage code haplotype P5). This is the first report of avian malaria
in a wild individual of C. c. rufa. |
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