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dc.contributor.authorNida, Laurel K.en_US
dc.coverage.spatialMaple River - East Branchen_US
dc.date.accessioned2007-06-14T21:49:38Z
dc.date.available2007-06-14T21:49:38Z
dc.date.issued1991en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54303
dc.description.abstractIntraspecific competition as it relates to organism density and space use among filter feeding Simuliidae larvae was investigated at the University of Michigan Biological Station (Pellston, MI). This study was conducted to determine if organism density is an important factor in determining the degree of intraspecific competition among larvae on varying habitats. Artificial streams were set up containing four densities of organisms (500, 200, 50, or 25). Each stream contained two rock sizes: small and large (relative to each other). The stream density, rock area, and the number of fights (bumping or biting between larvae) per rock were recorded for three trials. The current velocity remained constant at 4.26 cm/s. A Fisher Multiple Comparison ANOVA between density and area was used to interpret the data. There was s definite relationship between the number of fights and organism density. In general, as the number of organisms increased, the number of fights also rose. It was found that there was no significant difference between the 500 and 200 density streams in the number of fights per area of small rock. However, there was a significant difference among the other streams in the #fights/area of small rock. On the other hand, with the large rocks there was a significant differnce among streams, 500 vs. 200, 500 vs. 50, and 500 vs. 25. There was no significant difference among the other streams in the #fights/area of large rock. Thus, there were more fights with the larger density streams as the larvae compete to remain on the prime habitat, the larger rock. From this data, it can be inferred that population density if related to the degree of intraspecific competition among larvae for living space.en_US
dc.format.extent373793 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartDiagram or Illustrationen_US
dc.relation.haspartGraphen_US
dc.relation.haspartTable of Numbersen_US
dc.subjectStreamsen_US
dc.subject.otherINTRASPECIFICen_US
dc.subject.otherCOMPETITTIONen_US
dc.subject.otherDENSITYen_US
dc.subject.otherHABITATen_US
dc.subject.otherSELECTIONen_US
dc.subject.otherSIMULIIDAEen_US
dc.subject.otherINSECTSen_US
dc.subject.otherAQUATICen_US
dc.subject.otherINVERTEBRATESen_US
dc.subject.otherLARVAEen_US
dc.subject.otherPOPULATIONen_US
dc.titleIntraspecific competition as it relates to organism density and space use among Simuliidae larvae.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/2027.42/54303/1/2739.pdfen_US
dc.description.filedescriptionDescription of 2739.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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