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dc.contributor.authorPettit, Joseph L.
dc.date.accessioned2010-07-20T18:43:12Z
dc.date.accessioned2015-10-01T13:47:32Z
dc.date.available2010-07-20T18:43:12Z
dc.date.available2015-10-01T13:47:32Z
dc.date.issued2010-07-20T18:43:12Z
dc.identifier.urihttp://hdl.handle.net/10484/970
dc.description.abstractI conducted a study of the deceptive pollination system of Jack-in-the-pulpit (Arisama triphyllum, Araceae) in forests of west-central Indiana. I focused on (a) determining the identities and abundances of insect visitors to spathes, (b) evaluating the success of female spathes in setting fruit, (c) determining the relative importance of pollinator visitation and plant size for fruit number, and (d) investigating the function of the female spathe’s lack of an exit hole, which has been hypothesized to improve pollination success. I found that (a) Jack-in-the-pulpit receives visits from both flies and thrips. Counts of fly corpses from spathes showed the most prevalent families to be Mycetophilidae and Sciaridae with other nematoceran families and a few brachyceran families present as well. Visitation by thrips, determined by visual inspection of spathes, was low, involving only 30% of plants. (b) Fifty-seven percent of female plants set fruit, with much variation among sites. (c) Mushroom flies, especially the families Mycetophilidae and Sciaridae, were found to be the primary pollinators of Jack-in-thepulpit based on pollen loads, visit rates, and an exclusion experiment. Pollination by thrips, though possible, probably had only a minor effect. (d) An experiment that created an exit hole in female spathes yielded no support for the hypothesis that lack of an exit hole (the natural condition) improves fruit set.
dc.description.statementofresponsibilityJoseph L. Pettit
dc.language.isoen_US
dc.subject.lcshAraceae.
dc.subject.lcshJack-in-the-pulpit.
dc.subject.lcshPollination by insects--United States--Indiana.
dc.subject.lcshFruit--Development
dc.subject.lcshInsect pollinators.
dc.subject.otherDeceptive pollination system.
dc.titlePollinator Deception and Plant Reproductive Success in Jack-In-The-Pulpit
dc.typeThesis
dc.date.graduationmonthDecember
dc.date.published2009
dc.description.committeechairScott, Peter E.
dc.description.committeemembersSteven L. Lima
dc.description.committeemembersWilliam A. Mitchell
dc.description.degreeMaster of Science
dc.description.departmentDepartment of Biology
dc.description.imprintCunningham Memorial library, Terre Haute,Indiana State University
dc.description.itemidetdGS071610-200905
dc.description.levelMasters
dc.description.noteTitle from document title page. Document formatted into pages: contains 54 p.: Includes abstract.
refterms.dateFOA2021-06-02T10:29:24Z


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