The role of hydraulic strategies in understanding the response of fynbos to drought

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dc.contributor.advisorWest, Adamen_ZA
dc.contributor.authorSkelton, Robert Paulen_ZA
dc.date.accessioned2015-05-28T12:31:53Z
dc.date.available2015-05-28T12:31:53Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThis dissertation is an investigation into the relevance of the hydraulic framework (sensu McDowell et al., 2008) in understanding the response of diverse communities to drought. This framework distinguishes species that respond to dehydration by rapidly decreasing stomatal conductance (gs) (isohydric), thereby maintaining relatively constant midday minimum water potential, from those that maintain relatively high gs (anisohydric), thereby maintaining carbon assimilation albeit at the cost of hydraulic dysfunction. However, currently, the importance of the hydraulic framework in explaining drought response in diverse communities is poorly understood. Drought-related plant mortality is of particular concern in South Africa’s fynbos biome, a global biodiversity hotspot. This Mediterranean-type region is predicted to experience an increase in drought, with unknown consequences for the endemic flora. We asked whether drought affected this diverse ecosystem in a predictable manner and if these patterns fit with existing frameworks of plant drought-mortality mechanisms.en_ZA
dc.identifier.apacitationSkelton, R. P. (2014). <i>The role of hydraulic strategies in understanding the response of fynbos to drought</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/13033en_ZA
dc.identifier.chicagocitationSkelton, Robert Paul. <i>"The role of hydraulic strategies in understanding the response of fynbos to drought."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2014. http://hdl.handle.net/11427/13033en_ZA
dc.identifier.citationSkelton, R. 2014. The role of hydraulic strategies in understanding the response of fynbos to drought. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Skelton, Robert Paul AB - This dissertation is an investigation into the relevance of the hydraulic framework (sensu McDowell et al., 2008) in understanding the response of diverse communities to drought. This framework distinguishes species that respond to dehydration by rapidly decreasing stomatal conductance (gs) (isohydric), thereby maintaining relatively constant midday minimum water potential, from those that maintain relatively high gs (anisohydric), thereby maintaining carbon assimilation albeit at the cost of hydraulic dysfunction. However, currently, the importance of the hydraulic framework in explaining drought response in diverse communities is poorly understood. Drought-related plant mortality is of particular concern in South Africa’s fynbos biome, a global biodiversity hotspot. This Mediterranean-type region is predicted to experience an increase in drought, with unknown consequences for the endemic flora. We asked whether drought affected this diverse ecosystem in a predictable manner and if these patterns fit with existing frameworks of plant drought-mortality mechanisms. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - The role of hydraulic strategies in understanding the response of fynbos to drought TI - The role of hydraulic strategies in understanding the response of fynbos to drought UR - http://hdl.handle.net/11427/13033 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13033
dc.identifier.vancouvercitationSkelton RP. The role of hydraulic strategies in understanding the response of fynbos to drought. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13033en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBotanyen_ZA
dc.titleThe role of hydraulic strategies in understanding the response of fynbos to droughten_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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