Predation by eastern mudminnows (Umbra pygmaea) on macroinvertebrates of temporary wetlands

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dc.contributor.advisorLamp, William O.en_US
dc.contributor.authorLombardi, Susan Elizabethen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-10-06T06:40:34Z
dc.date.available2009-10-06T06:40:34Z
dc.date.issued2009en_US
dc.description.abstractFish play a substantial role in aquatic food webs, yet the effect of feeding activities of small stream fish that enter seasonally-flooded temporary wetlands during periods of hydrologic connectivity is not well understood. In this study, eastern mudminnows (Umbra pygmaea) were introduced to a fishless wetland in Caroline County, Maryland, and the aquatic macroinvertebrate community did not significantly change within two weeks. Gut contents of mudminnows collected from the wetland and a stream consisted primarily of dipteran larvae; ostracods were also a common food source for wetland mudminnows. Common prey not found in gut contents but present in the wetland were tested as food, and all taxa were consumed in a no-choice predation experiment. Mudminnows have the potential to directly affect multiple trophic levels and subsequent ecosystem functioning through predatory interactions with sustained hydrologic connectivity between fish sources and temporary wetlands.en_US
dc.format.extent839994 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9652
dc.language.isoen_US
dc.subject.pqcontrolledBiology, Ecologyen_US
dc.subject.pqcontrolledBiology, Entomologyen_US
dc.subject.pqcontrolledEnvironmental Sciencesen_US
dc.subject.pquncontrolledfish ecologyen_US
dc.subject.pquncontrolledmacroinvertebratesen_US
dc.subject.pquncontrolledpredationen_US
dc.subject.pquncontrolledtemporary wetlandsen_US
dc.titlePredation by eastern mudminnows (Umbra pygmaea) on macroinvertebrates of temporary wetlandsen_US
dc.typeThesisen_US

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