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dc.contributor.authorDuVal, Emilyen_US
dc.coverage.spatialSturgeon Bay Dunesen_US
dc.date.accessioned2007-06-14T22:39:48Z
dc.date.available2007-06-14T22:39:48Z
dc.date.issued1996en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54668
dc.description.abstractThis study will examine the distribution of seed predators and rates of seed predation in dune and swale habitats of Sturgeon Bay, Lake Michigan. The study will focus on the influence of seed predation on three conifer species: white pine (Pinus strobus), white spruce (Picea glauca), and red pine (Pinus resinosa). These species are some of the first trees to colonize the study site. Natural density of these conifers, as well as overall vegetation density, will be correlated with predation rate. Differences in predation rate among conifer types will also be measured to examine the influence of predator choice on the colonization of particular species. Seed predators observed at the study site include thirteen-lined ground squirrels (Spermophilus tridecimlineatus), meadow jumping mice (Zapus hudsonius), and woodland jumping mice (Napaeozapus insignus). White-footed mice (Peromyscus leucopus), formerly the most common seed predators in this system have sharply decreased populations due to an unusually harsh winter. Voles and bog lemmings might also be present during some years, but were absent at the time of the study. The extent and impact of this decrease in seed predator density will also be considered. If predation varies with fluctuations in rodent populations, tree recruitment rates may increase in years with lower rodent densities.en_US
dc.format.extent597073 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.relation.haspartTable of Numbersen_US
dc.subjectUndergraduate Research Exper.en_US
dc.subject.classificationDune and Swale Complexen_US
dc.subject.otherMAMMALSen_US
dc.subject.otherSPERMOPHILUSen_US
dc.subject.otherSQUIRRELSen_US
dc.subject.otherMICEen_US
dc.subject.otherZAPUSen_US
dc.subject.otherNAPAEOZAPUSen_US
dc.subject.otherSEEDen_US
dc.subject.otherPREDATORSen_US
dc.subject.otherHERBIVORYen_US
dc.subject.otherPINUSen_US
dc.subject.otherPICEAen_US
dc.subject.otherCOLONIZATIONen_US
dc.subject.otherCONIFERSen_US
dc.subject.otherPREDATIONen_US
dc.titleDifferential seed predation by rodents in dune and swale habitats of Sturgeon Bay, Michigan.en_US
dc.typeWorking Paperen_US
dc.subject.hlbsecondlevelNatural Resource and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.contributor.affiliationumBiological Station, University of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/54668/1/3108.pdfen_US
dc.description.filedescriptionDescription of 3108.pdf : Access restricted to on-site users at the U-M Biological Station.en_US
dc.owningcollnameBiological Station, University of Michigan (UMBS)


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