Phylogeography and trematode parasitism of Oreohelix land snails in southern Alberta

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dc.contributor.authorDempsey, Zach W.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorBurg, Theresa M.
dc.contributor.supervisorGoater, Cameron P.
dc.date.accessioned2017-09-27T18:25:50Z
dc.date.available2017-09-27T18:25:50Z
dc.date.issued2017
dc.degree.levelMastersen_US
dc.description.abstractModern studies in phylogeography integrate many once-disparate scientific fields. This study investigated terrestrial mountain snails, Oreohelix spp., in southern Alberta using DNA markers and the recent emergence of the trematode parasite Dicrocoelium dendriticum. Large-bodied snails in Cypress Hills (CH) and the Rocky Mountains (RM) formed three clades within the species complex O. subrudis. One was geographically widespread, one was restricted to one region in the RM, and one was restricted to CH. Small-bodied snails in CH were determined to be O. cooperi, a rare Oreohelid thought to be imperilled in the western U.S.A. Phylogeographic analyses determined that snails likely colonized and came into contact in CH due to its glacial history. There was significant spatial and seasonal variation in the prevalence of D. dendtriticum in all three lineages of Oreohelix present in CH. Isolation and geological history have played an important role in determining Oreohelid biogeographical patterns in this region.en_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council (NSERC) ACA Grants in Biodiversity (supported by the Alberta Conservation Association)en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4915
dc.language.isoen_USen_US
dc.proquest.subject0307en_US
dc.proquest.subject0718en_US
dc.proquest.subject0408en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Biological Sciencesen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectconservationen_US
dc.subjectphylogeographyen_US
dc.subjectparasitologyen_US
dc.subjectphenologyen_US
dc.subjectemerging infectious diseasesen_US
dc.subjectspeciationen_US
dc.subjectdispersalen_US
dc.titlePhylogeography and trematode parasitism of Oreohelix land snails in southern Albertaen_US
dc.typeThesisen_US
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