Low Prevalence of Haemosporidian Parasites in Shorebirds

Ardea

Graciela Escudero³  Robert E. Ricklefs¹  Letícia Soares¹  Victor A.S. Penha² 

[1] 1 Department of Biology, University of Missouri-St. Louis, St. Louis MO, USA;3 Behavioral Ecology and Interactions Laboratory, Universidade Federal de Uberlândia, Uberlândia MG, Brazil;2 Department of Molecular Biology and Biochemical Engineering, University of Pablo de Olavide, Sevilla, Spain;

关键词: Parasite Vectors;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

Althoughshorebirds(Charadriiformes:subordersScolopaciandCharadrii)facephysiologicalstressduringmigrationandexperienceawiderangeofvector-suitablehabitatsacrosstheirdistributions,haemosporidianparasites(orderHaemosporida)haverarelybeendetectedinthesespeciesworldwide.Weaskwhethershorebirdsremaininfection-freewhenwinteringinareaswhereparasitetransmissionoccursamonglandbirdspecies.BloodsampleswerecollectedatthreelocationsinArgentina:Patagonia,withanavianassemblagedominatedbyshorebirdspecies;MarChiquitaLagoon,ahigh-salinitywaterbasinwhereshorebirdandlandbirdspeciesco-occur;andinlandsitesinChacoandCordobaprovinces,wherehostassemblagesincludedmostlylandbirdspecies.Wescreened650samplesforthepresenceofhaemosporidianinfectionsandsequencedapartoftheparasitemitochondrialcytochromebgenetodetermineparasitelineages.Of342landbirds,91wereinfectedwithhaemosporidianparasites,comparedtoonlythreeof318shorebirds.Winteringlocationhadnoeffectontheprevalenceofhaemosporidianparasitesinshorebirds.Haemosporidianinfectionsarerareinshorebirdsevenwhentheseco-occurwithlandbirdspeciesininlandareassuitableforparasitetransmission.Thefewinfectionsdetectedinshorebirdsmightrepresentspilloverinfectionsfromlandbirds,astheparasitelineageswerealsofoundincommonlandbirdspecies.Wesuggestthatshorebirdsareresistanttohaemosporidianparasites,andeitherdonotbecomeinfectedorquicklyclearoccasionalinfections.

【 授权许可】

Unknown