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dc.contributor.advisorFredrickson, Leigh H.eng
dc.contributor.authorLor, Socheata K., 1968-eng
dc.coverage.spatialMinnesotaeng
dc.date.issued2007eng
dc.date.submitted2007 Falleng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on February 15, 2008)eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionVita.eng
dc.descriptionThesis (Ph. D.) University of Missouri-Columbia 2007.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Fisheries and wildlife.eng
dc.description.abstractInformation on habitat use of the American Bittern (Botaurus lentiginosus) and a statistically valid survey design for monitoring changes in populations of inconspicuous marsh birds, which include American and Least Bitterns (Ixobrychus exilis), Pied-billed Grebes (Podilymbus podiceps), Soras (Porzana carolina), and Virginia Rails (Rallus limicola)) is needed to inform conservation and management actions. My research, from 1999 - 2002, examined breeding habitat use and home range of American Bitterns. Also, I used pilot survey data to guide design options to meet objectives for monitoring marsh bird occupancy rates in association with habitat changes. Nest sites of American Bitterns in wetlands (n = 47) and grasslands (n = 33) were positively associated with percent dead vegetation cover and density and negatively associated with vegetation height. Foraging sites of American Bitterns were negatively associated with distance to small water openings and vegetation height. Daily survival rate was 0.96 (95% CI 0.930 - 0.979) and nest survival rate of American Bitterns was 0.35 (95% CI = 0.15 - 0.58). The average core home range size (50%) was 18.08 ha ([plus or minus] 6.38) and the 95% home range was 109.28 ha ([plus or minus] 38.47) using the fixed-kernel estimator. Results from occupancy analyses of pilot data and evaluation of a set of a priori candidate models provide the needed guidance for reliable marsh bird monitoring programs.eng
dc.identifier.merlin.b62018231eng
dc.identifier.oclc192050520eng
dc.identifier.otherLorS-113007-D8764eng
dc.identifier.urihttp://hdl.handle.net/10355/4705eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollection2007 Freely available dissertations (MU)eng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2007 Dissertationseng
dc.subjectAmerican Bitterns; Boturus lentiginosus.eng
dc.subjectAmerican Bitterns; Boturus lentiginosuseng
dc.subject.lcshNature conservationeng
dc.subject.lcshBitterns -- Effect of habitat modification oneng
dc.subject.lcshWaterfowl -- Effect of habitat modification oneng
dc.subject.lcshBitterns -- Nestseng
dc.subject.lcshWaterfowl -- Nestseng
dc.subject.lcshBitterns -- Home rangeeng
dc.subject.lcshWaterfowl -- Home rangeeng
dc.titleHabitat use and home range of American bitterns (Botuarus lentiginosus) and monitoring of inconspicuous marsh birds in northwest Minnesotaeng
dc.typeThesiseng
thesis.degree.disciplineFisheries and wildlife sciences (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


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