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dc.contributor.authorBelke, Colleenen_US
dc.coverage.spatialMaple River - East Branchen_US
dc.date.accessioned2007-06-14T23:26:17Z
dc.date.available2007-06-14T23:26:17Z
dc.date.issued2004en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/55004
dc.description.abstractDark-winged damselflies (Calopteryx maculata) display by opening and closing their wings as a courtship behavior to attract females. We hypothesize that non-territorial males will display at higher rates than territorial males because they sneak into other males' territories and they are discovered and subsequently chased out whereas territorial males can sit in their territory all day, displaying when they chose to. An alternate hypothesis is that males with higher body mass indices or longer abdomen lengths will display more because they have better genes than will attract more females. Their genes are better because they are able to be larger and display more while still avoiding higher rates of predation that should result from increased display. We observed C. maculata on the Maple River from late June through late July. We recorded total number of displays, time in territory, and location of territory, locality, and male category. We found no significant difference between display rates of different types of males, display rates between different BMI's of males or display rates between males of different abdomen lengths. We categorized male type by 1=local, territorial, 2=local, non-territorial, and 3=non-local, non-territorial. We found no difference in display rates of males of different ages either. All C. maculata males display at the same rates in an attempt to attract females and increase reproductive success.en_US
dc.format.extent349183 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.otherINSECTSen_US
dc.subject.otherINVERTEBRATESen_US
dc.subject.otherODONATAen_US
dc.subject.otherBEHAVIORen_US
dc.subject.otherREPRODUCTIVEen_US
dc.subject.otherBREEDINGen_US
dc.subject.otherBIOLOGYen_US
dc.subject.otherCOMPETITIONen_US
dc.subject.otherSEXUALen_US
dc.subject.otherSELECTIONen_US
dc.titleDisplay rate, territory holding status, body size and age in dark-winged damselflies (Calopteryx maculata).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/2027.42/55004/1/3445.pdfen_US
dc.description.filedescriptionDescription of 3445.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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