Show simple item record

dc.contributor.authorThurmon, Hadley K.en_US
dc.coverage.spatialLes Cheneaux Islandsen_US
dc.date.accessioned2007-06-14T22:35:28Z
dc.date.available2007-06-14T22:35:28Z
dc.date.issued1995en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54637
dc.description.abstractSocial living consists of costs and benefits. Ideally, an organism in a group situation will seek to maximize its benefits while minimizing its costs. One behavior that should be dependent on group size is vigilance time. Vigilance time is time spent above water watching and/or listening for danger. Time spent vigilant cannot be used to perform reproductively beneficial activities. This study of Double-crested cormorants compares individual mean vigilance times as a function of flock size. Using an ANOVA (p<0.00001 df=58), I detected a significant difference as predicted; vigilance time decreased as flocks ize increased. Therefore, Double-crested Cormorants benefit from decreased individual vigilance time as flock size increases.en_US
dc.format.extent258346 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.subjectBehavioral Ecologyen_US
dc.subject.otherBIRDSen_US
dc.subject.otherCORMORANTSen_US
dc.subject.otherPHALACROCORAXen_US
dc.subject.otherFORAGINGen_US
dc.subject.otherVIGILANCEen_US
dc.subject.otherBEHAVIORen_US
dc.subject.otherFEEDINGen_US
dc.subject.otherCOMPETITIONen_US
dc.subject.otherFOODen_US
dc.subject.otherRESOURCESen_US
dc.titleMean vigilance versus flock size in Double-crested Cormorants Phalacrocorax auritus.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/2027.42/54637/1/3077.pdfen_US
dc.description.filedescriptionDescription of 3077.pdf : Access restricted to on-site users at the U-M Biological Station.en_US
dc.owningcollnameBiological Station, University of Michigan (UMBS)


Files in this item

Show simple item record