Optimum antlion pit structure.

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dc.contributor.author Keesler-Edwards, Tiffany en_US
dc.contributor.author Miller, Danielle en_US
dc.contributor.author Pearlman, Becky en_US
dc.contributor.author Schiff, Steve en_US
dc.coverage.spatial UMBS Station en_US
dc.coverage.spatial UMBS Campus en_US
dc.date.accessioned 2007-06-14T21:46:52Z
dc.date.available 2007-06-14T21:46:52Z
dc.date.issued 1991 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/54283
dc.description.abstract We 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.extent 491400 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject General Ecology en_US
dc.subject.classification Sand en_US
dc.subject.classification Gravel Beach en_US
dc.title Optimum antlion pit structure. en_US
dc.type Working Paper en_US
dc.subject.hlbsecondlevel Natural Resource and Environment en_US
dc.subject.hlbtoplevel Science en_US
dc.contributor.affiliationum Biological Station, University of Michigan en_US
dc.contributor.affiliationumcampus Ann Arbor en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/54283/1/2719.pdf en_US
dc.description.filedescription Description of 2719.pdf : Access restricted to on-site users at the U-M Biological Station. en_US
dc.owningcollname Biological Station, University of Michigan (UMBS)
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