Factors influencing prey community structure: the effects of the prey-species selection by the predator Haplotrema concavum and the effects of interspecific interactions between those prey-species.

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dc.contributor.author Berkowitz, Felicia en_US
dc.contributor.author Boone, Kofi Malik en_US
dc.contributor.author Boylan, Emily en_US
dc.coverage.spatial UMBS Station en_US
dc.coverage.spatial Grapevine Trail en_US
dc.date.accessioned 2007-06-14T21:53:42Z
dc.date.available 2007-06-14T21:53:42Z
dc.date.issued 1992 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/54333
dc.description.abstract This research project was designed to test two hypotheses: 1) predator preference influences its prey community structure and 2) the interaction between the prey species also influences the prey community structure. The system used in the study was that of the carnivorous land snail Haplotrema concavum and fifteen prey species. Two procedures were used to determine if there was any relationship between H. concavum prey preference and the relative abundance of those prey. The first procedure involved gathering random samples of the prey from a designated site and calculating their relative abundance. The second procedure involved various feeding trials from which a hierarchy of H. concavum prey preference was determined. The relative abundance was correlated between the species and with the preference hierarchy. The results showed that there was no correlation between H. concavum prey preference and the relative abundance of those prey. However, there were significant correlations found between the relative abundance of the prey species. These results suggest that H. concavum predation is not a significant factor in structuring its prey community, whereas species interactions do play a role. en_US
dc.format.extent 609674 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject General Ecology en_US
dc.subject.other INVERTEBRATES en_US
dc.subject.other HAPLOTREMA en_US
dc.subject.other PREDATION en_US
dc.subject.other SNAILS en_US
dc.subject.other PREY en_US
dc.subject.other COMMUNITY en_US
dc.subject.other STRUCTURE en_US
dc.subject.other SPECIES en_US
dc.subject.other PREFERENCE en_US
dc.title Factors influencing prey community structure: the effects of the prey-species selection by the predator Haplotrema concavum and the effects of interspecific interactions between those prey-species. 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/2027.42/54333/1/2769.pdf en_US
dc.description.filedescription Description of 2769.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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