Senescence in duckweed: an interspecific comparison and the influence of temperature

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dc.contributor.authorPaiha, Austin Paul
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorLaird, Robert A.
dc.date.accessioned2021-07-21T20:02:17Z
dc.date.available2021-07-21T20:02:17Z
dc.date.issued2021
dc.degree.levelMastersen_US
dc.description.abstractThe focus of this thesis was to compare the life history traits of three species of duckweed and investigate the impact of temperature on duckweed lifespan. A generalized pace and shape framework was employed to measure six life history traits. Results revealed pace and shape of survivorship to be conserved, while fecundity and frond size were more variable. Two temperatures were then used to determine whether duckweed lifespan was directly impacted by temperature. Results demonstrated that lower temperatures extended lifespan while higher temperatures reduced lifespan, and temporal scaling of survivorship trajectories was observed. A linear model was able to predict the average change in lifespan associated with spending a certain number of days at a high temperature and switching to a low temperature. This study provides an example of how duckweed species remain a useful model system at the forefront of evolutionary and ecological studies focusing on plant senescence.en_US
dc.identifier.urihttps://hdl.handle.net/10133/5963
dc.language.isoen_USen_US
dc.proquest.subject0309en_US
dc.proquest.subject0329en_US
dc.proquest.subject0306en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciencesen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectplant senescence researchen_US
dc.subjectduckweed lifespanen_US
dc.subjecttemperature impacts on senescenceen_US
dc.subjectpace-shape frameworken_US
dc.subjecttemporal scalingen_US
dc.subjectdemographic senescenceen_US
dc.subjectramet senescenceen_US
dc.subjectPlants -- Aging -- Researchen_US
dc.subjectDuckweeds -- Aging -- Researchen_US
dc.subjectDuckweeds -- Effect of temperature on -- Researchen_US
dc.subjectLemna -- Aging -- Researchen_US
dc.subjectLemna -- Effect of temperature on -- Researchen_US
dc.subjectDissertations, Academicen_US
dc.titleSenescence in duckweed: an interspecific comparison and the influence of temperatureen_US
dc.typeThesisen_US
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