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Double-crested Cormorant guano impacts on the nitrogen chemistry and forest composition of two island ecosystems in the Great Lakes.

dc.contributor.authorArnold, Anthonyen_US
dc.coverage.spatialEpoufette Islanden_US
dc.coverage.spatialGreen Islanden_US
dc.date.accessioned2007-06-14T23:31:07Z
dc.date.available2007-06-14T23:31:07Z
dc.date.issued2005en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/55039
dc.description.abstractRedistribution of allochthonous nutrients from the aquatic zone to adjacent terrestrial habitats can lead to inputs of limiting nutrients especially nitrogen resulting in a fertilization effect. Currently controversy over the Double-crested Cormorants impacts on fish consumption and terrestrial ecosystem alterations ia a topic of great debate. The data from this research shows that cormorants have increased 15N in the O horizon soil and plant biomass as well as %N in foliage of at two nearby islands in Lake Michigan. Furthermore I found that as a result of increased N inputs C:N ratios were lowered in former and current nesting locations. The opposite trend was observed in an undisturbed region of one of the islands. Recently management implementations have been put into place to reduce potential impacts of cormorants in the Great Lakes region. However, very little is known and even less formal research has been gathered in order to fully understand the more subtle ecosystem interactions and process of this phenomenon.en_US
dc.format.extent311102 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.subjectForest Ecology & Biogeochemistryen_US
dc.subject.otherBIRDSen_US
dc.subject.otherPHALACROCORAXen_US
dc.subject.otherDEPOSITIONen_US
dc.subject.otherCYCLINGen_US
dc.subject.otherNITROGENen_US
dc.subject.otherCARBONen_US
dc.subject.otherISLANDSen_US
dc.subject.otherVASCULARen_US
dc.subject.otherPLANTSen_US
dc.titleDouble-crested Cormorant guano impacts on the nitrogen chemistry and forest composition of two island ecosystems in the Great Lakes.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/2027.42/55039/1/3482.pdfen_US
dc.description.filedescriptionDescription of 3482.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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