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dc.contributor.authorSinclair, Jamesen
dc.date.accessioned2018-02-08T22:05:21Z
dc.date.available2018-02-08T22:05:21Z
dc.identifier.urihttp://hdl.handle.net/1974/23935
dc.description.abstractSuccessful population establishment, subsequent population dynamics, and extinction have all repeatedly been shown to be affected by the quantity of initial colonists. However, there are other, less studied factors that could determine population success, including the physiological condition in which colonists arrive (‘quality’), and the frequency with which they arrive (‘arrival frequency’). While all of these factors can individually drive the dynamics and extinction of new populations, we do not understand which has the strongest influence, nor the circumstances under which their relative importance may change. In this thesis, I examined the importance of different combinations of colonizer characteristics for population success, and how their importance varied between species and individuals. In my first experiment, I showed that population size, not arrival frequency, was the primary factor determining the survival and performance of introduced populations of Hemimysis anomala. In my second experiment, I found that the population dynamics of Daphnia pulicaria were only influenced by colonist quality, while the establishment of Skistodiaptomus oregonensis was more strongly influenced by arrival frequency. Finally, I showed that the benefits of increasing colonist quantity and genetic diversity can change based on colonist identity. For some Daphnia pulex colonists, higher quantities or genetic diversities improved their success, while in others there was little effect. I also conducted an additional project that examined the mechanisms driving human-mediated dispersal. Colonization is a shared and integral process across ecological disciplines, and our current understanding of the mechanisms involved is founded on research of both ‘natural’ and ‘human-mediated’ colonization. This project integrates the biological- and human-based processes involved in human-mediated dispersal, and develops a general framework outlining the mechanisms that determine which individuals enter, survive, and exit from human vectors. Overall, my work highlights the necessity of considering multiple colonist characteristics, and pre-arrival processes, to understand, predict, and control colonization, and that the value of particular characteristics is not necessarily consistent across species and individuals.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsCC0 1.0 Universalen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/
dc.subjectColonizationen
dc.subjectPopulation Sizeen
dc.subjectPropagule Pressureen
dc.subjectQualityen
dc.subjectArrival Frequencyen
dc.subjectConditionen
dc.subjectPropagule Sizeen
dc.subjectPropagule Numberen
dc.subjectEstablishmenten
dc.subjectExtinctionen
dc.subjectFoundingen
dc.subjectSmall Populationen
dc.subjectInvasionen
dc.subjectNon Nativeen
dc.subjectHuman-Mediated Dispersalen
dc.subjectAllee Effecten
dc.subjectColonisten
dc.subjectDaphniaen
dc.subjectZooplanktonen
dc.subjectFrameworken
dc.subjectSynthesisen
dc.subjectMovement Ecologyen
dc.subjectGenetic Diversityen
dc.subjectIdentityen
dc.subjectSampling Effecten
dc.titleThe Relative Importance of Population Size, Colonist Quality, and Colonist Arrival Frequency for Population Successen
dc.typethesisen
dc.description.degreePhDen
dc.contributor.supervisorArnott, Shelleyen
dc.contributor.departmentBiologyen
dc.degree.grantorQueen's University at Kingstonen


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