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dc.contributor.advisorFredrickson, Leigh H.en
dc.contributor.authorLor, Socheata K., 1968-en_US
dc.coverage.spatialMinnesota
dc.date.issued2007eng
dc.date.submitted2007 Fallen
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.en_US
dc.descriptionTitle from title screen of research.pdf file (viewed on February 15, 2008)en_US
dc.descriptionIncludes bibliographical references.en_US
dc.descriptionVita.en_US
dc.descriptionThesis (Ph. D.) University of Missouri-Columbia 2007.en_US
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Fisheries and wildlife.en_US
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.en_US
dc.identifier.merlin.b62018231en_US
dc.identifier.oclc192050520en_US
dc.identifier.otherLorS-113007-D8764en_US
dc.identifier.urihttp://hdl.handle.net/10355/4705
dc.publisherUniversity of Missouri--Columbiaen_US
dc.relation.ispartofcollection2007 Freely available dissertations (MU)
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2007 Dissertations
dc.subjectAmerican Bitterns; Boturus lentiginosus.en_US
dc.subjectAmerican Bitterns; Boturus lentiginosusen_US
dc.subject.lcshNature conservationen_US
dc.subject.lcshBitterns -- Effect of habitat modification onen_US
dc.subject.lcshWaterfowl -- Effect of habitat modification onen_US
dc.subject.lcshBitterns -- Nestsen_US
dc.subject.lcshWaterfowl -- Nestsen_US
dc.subject.lcshBitterns -- Home rangeen_US
dc.subject.lcshWaterfowl -- Home rangeen_US
dc.titleHabitat use and home range of American bitterns (Botuarus lentiginosus) and monitoring of inconspicuous marsh birds in northwest Minnesotaen_US
dc.typeThesisen_US
thesis.degree.disciplineFisheries and wildlife sciencesen_US
thesis.degree.disciplineFisheries and wildlife scienceseng
thesis.degree.grantorUniversity of Missouri--Columbiaen_US
thesis.degree.levelDoctoralen_US
thesis.degree.namePh. D.en_US


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