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dc.contributor.authorSmith, Jocelynen_US
dc.coverage.spatialWaldron Fenen_US
dc.date.accessioned2007-06-14T22:43:32Z
dc.date.available2007-06-14T22:43:32Z
dc.date.issued1996en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54695
dc.description.abstractTree preference of the red squirrel, Tamiasciurus hudsonicus, was studied in regards to tree diameter at breast height (dbh) and distance to edge. It was expected that the squirrels would select for greater diameter-sized trees because I assumed the diameter at breast height correlated with cone productivity. Middens, piles of accumulated pine debris from feeding squirrels, were measured for their depth, radii, and eaten to uneaten cone ratio between August 2nd and August 12th at a Norway Spruce (Picea abies) plantation. The study area was divided into ten by ten meter plots, and the dbh of trees surrounded by the middens were measured. It was found that red squirrels significantly preferred trees with dbhs at least 5 cm above the average dbh of the plantation. Average dbh was highest for edge plots and decreased for each successive plot further from an edge. Average plot dbh was positively correlated with light lux. However, midden quality, in terms of average depth, percent potential storage, and average total cone number was lowest at the edge plots and highest in plots between 10 m-30 m from an edge. Territories may be centered in areas with high average dbhs, but not so near to an edge that wood habitat would be compensated for field habitat within the territorial boundaries. Red squirrels were also believed to prefer norway spruce cones over scot's pine (Pinus sylvestris) cones due to the former's probable higher energy content.en_US
dc.format.extent494676 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.relation.haspartTable of Numbersen_US
dc.subjectBehavioral Ecologyen_US
dc.subject.otherMAMMALSen_US
dc.subject.otherSQUIRRELSen_US
dc.subject.otherTAMIASCIURUSen_US
dc.subject.otherMIDDENSen_US
dc.subject.otherPREFERENCEen_US
dc.subject.otherTREEen_US
dc.subject.otherBEHAVIORen_US
dc.subject.otherCHOICEen_US
dc.titleTree preference of the red squirrel (Tamiasciurus hudsonicus) regarding tree diameter at breast height and distance to edge.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/2027.42/54695/1/3136.pdfen_US
dc.description.filedescriptionDescription of 3136.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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