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dc.contributor.authorMarzolf, Nicholas Scott
dc.date.accessioned2016-07-07T04:30:17Z
dc.date.available2016-07-07T04:30:17Z
dc.date.issued2015-12
dc.identifier.othermarzolf_nicholas_s_201512_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/marzolf_nicholas_s_201512_ms
dc.identifier.urihttp://hdl.handle.net/10724/35422",
dc.description.abstractThe introduction of the Island apple snail, Pomacea maculata in the past 20 years is one of the largest threats to freshwater ecosystems in the tropics and subtropics. In the United States, P. maculata has direct impacts on native snail species, submerged aquatic vegetation, and its dispersal to novel habitats is of great concern. Environmental factors, particularly temperature and calcium, have shown to affect behavior and physiology. In Lake Seminole, a large shallow reservoir, P. maculata was introduced in 2003, and has since dispersed throughout large sections of the lake. Temperature variability in the lake may alter snail behavior, but localized refugia will allow P. maculata to persist. Calcium concentrations around the lake and in nearby lakes suit the elemental requirements of P. maculata growth and survival, except when combined with cooler conditions. This suggests P. maculata can disperse throughout Lake Seminole, and throughout the lower ACF basin in future.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectPomacea maculata
dc.subjectreservoir
dc.subjectclimate warming
dc.subjectinvasive species
dc.subjectnovel ecosystem
dc.subjectrefugia
dc.subjectACF basin
dc.subjectHydrilla verticillata
dc.titleEnvironmental limits on the dispersal of invasive Pomacea maculata in Lake Seminole
dc.typeThesis
dc.description.degreeMS
dc.description.departmentInstitute of Ecology
dc.description.majorEcology
dc.description.advisorAlan Covich
dc.description.advisorStephen Golladay
dc.description.committeeAlan Covich
dc.description.committeeStephen Golladay
dc.description.committeeSusan B. Wilde
dc.description.committeePaul McCormick


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