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Optimum antlion pit structure.

dc.contributor.authorKeesler-Edwards, Tiffanyen_US
dc.contributor.authorMiller, Danielleen_US
dc.contributor.authorPearlman, Beckyen_US
dc.contributor.authorSchiff, Steveen_US
dc.coverage.spatialUMBS Stationen_US
dc.coverage.spatialUMBS Campusen_US
dc.description.abstractWe investigated the optimal size and shape of antlion (Myrmeleon immaculatus) pits. These pits serve as foraging traps to catch ants and other small insects which are eaten by antlion larvae. The larvae lie in the sand beneath the pits, waiting to strike and capture prey which fall into the pit. We studied pit optimality in both dry and moist sand. Two measurements were used as indicators of pit performance: the amount of time the pit was able to detain an ant (ant retention time), and whether or not the antlion beneath a given pit struck at an ant placed in the pit. In comparing the shapes of the pits, we chose pit steepness and depth as parameters. Neither pit angle nor pit depth affected the pit's performance at any level of moisture. However, when moisture was tested independently, it was shown, at high levels, to reduce the strike rate of antlions.en_US
dc.format.extent491400 bytes
dc.format.extent3144 bytes
dc.relation.haspartTable of Numbersen_US
dc.subjectGeneral Ecologyen_US
dc.subject.classificationGravel Beachen_US
dc.titleOptimum antlion pit structure.en_US
dc.typeWorking Paperen_US
dc.subject.hlbsecondlevelNatural Resource and Environmenten_US
dc.contributor.affiliationumBiological Station, University of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.filedescriptionDescription of 2719.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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