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dc.contributor.authorBaxter, Lindsay
dc.date.accessioned2021-09-09T17:37:54Z
dc.date.issued2021-05
dc.identifier.otherBaxter_cornell_0058O_11194
dc.identifier.otherhttp://dissertations.umi.com/cornell:11194
dc.identifier.urihttps://hdl.handle.net/1813/109646
dc.description69 pages
dc.description.abstractDeer Tick virus (DTV) is a recently discovered lineage of Powassan virus and a member of the greater tick-borne encephalitis complex of viruses (TBEC) and causes significant morbidity and mortality to infected humans. DTV is associated with Ixodes scapularis ticks which are endemic to much of the Eastern and Midwestern United States and regularly bite humans. DTV, like other members of the TBEC, is thought to exist in small focal locations where transmission patterns are maintained over time. A field site was established on the Southern coast of Maine where high rates of DTV were found in questing ticks during 2018 and 2019. Host and tick abundance along with vegetation and microclimate conditions were measured in second growth forests across a gradient of infestation by invasive understory shrub species. DTV infection rate, was higher in the forest site highly invaded by Japanese barberry compared to forest sites moderately invaded or with native understory vegetation only. A higher density of I. scapularis was associated with Japanese barberry invasion, as well as a higher white-footed mouse abundance and lower saturation deficit. These findings are consistent with the theory of nidality (focality) of vector-borne infection in which zoonotic agents are maintained through an ideal assemblage of pathogen, hosts and habitat.
dc.language.isoen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDisease ecology
dc.subjectIxodes scapularis
dc.subjectPowassan virus
dc.titleHABITAT ASSOCIATIONS OF A POWASSAN VIRUS FOCUS IN SOUTHERN MAINE
dc.typedissertation or thesis
dc.description.embargo2022-06-08
thesis.degree.disciplineEntomology
thesis.degree.grantorCornell University
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Entomology
dc.contributor.chairHarrington, Laura C.
dc.contributor.committeeMemberGoodman, Laura
dcterms.licensehttps://hdl.handle.net/1813/59810
dc.identifier.doihttp://doi.org/10.7298/mwzh-ne68


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