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dc.contributor.authorBridges, Kathleen Marie
dc.date.accessioned2014-03-04T20:01:54Z
dc.date.available2014-03-04T20:01:54Z
dc.date.issued2011-08
dc.identifier.otherbridges_kathleen_m_201108_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/bridges_kathleen_m_201108_ms
dc.identifier.urihttp://hdl.handle.net/10724/27399
dc.description.abstractIt is predicted that the planet’s global temperature will continue to increase and that more disturbance events will occur. These factors are expected to affect forest productivity as well as soil respiration, decomposition, mineralization, and mycorrhizal activity. The response of ectomycorrhiza (EM) and arbuscular mycorrhiza (AM) to soil warming and disturbance was determined by seedling growth, fungal colonization amounts, foliar nitrogen (N) and δ15N content, and EM fungal species diversity. It was hypothesized that EM fungal colonization, foliar δ15N, and EM fungal diversity would decrease with increasing soil temperatures and that AM species would be unaffected. The first two hypotheses were not supported but EM fungal diversity was decreased. It was also hypothesized that disturbance would result in greater fungal colonization of seedlings receiving more light but decrease EM fungal diversity. Results demonstrated that support of these hypotheses is tree species dependent.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectmycorrhiza
dc.subjectnitrogen (N)
dc.subjectsoil temperature
dc.subjectglobal change
dc.titleMycorrhizal responses to soil warming and disturbance in temperate forests of the eastern United States
dc.typeThesis
dc.description.degreeMS
dc.description.departmentInstitute of Ecology
dc.description.majorConservation Ecology and Sustainable Development
dc.description.advisorJacqueline Mohan
dc.description.committeeJacqueline Mohan
dc.description.committeeRichard Shefferson
dc.description.committeePaul Hendrix


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