University of Canterbury Home
    • Admin
    UC Research Repository
    UC Library
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    1. UC Home
    2. Library
    3. UC Research Repository
    4. Faculty of Science | Te Kaupeka Pūtaiao
    5. Science: Theses and Dissertations
    6. View Item
    1. UC Home
    2.  > 
    3. Library
    4.  > 
    5. UC Research Repository
    6.  > 
    7. Faculty of Science | Te Kaupeka Pūtaiao
    8.  > 
    9. Science: Theses and Dissertations
    10.  > 
    11. View Item

    Phylogeography of the Cellana limpets of New Zealand: Investigating Barriers to Marine Dispersal and Historical Biogeography (2005)

    Thumbnail
    View/Open
    thesis_fulltext.pdf (5.454Mb)
    Type of Content
    Theses / Dissertations
    UC Permalink
    http://hdl.handle.net/10092/1334
    http://dx.doi.org/10.26021/8915
    
    Thesis Discipline
    Zoology
    Degree Name
    Doctor of Philosophy
    Publisher
    University of Canterbury. Biological Sciences
    Collections
    • Science: Theses and Dissertations [4774]
    Authors
    Goldstien, Sharyn Jane
    show all
    Abstract

    New Zealand is a continental island surrounded by deep-ocean, with a complex system of currents and oceanographic anomalies that may serve to isolate populations of coastal marine organisms. In particular Cook Strait is a 26 km wide body of water separating the North and South Islands which is characterised by complex interactions of tides and converging water masses. Cook Strait is a geologically recent formation that may also impart an historical influence on the biogeographic distribution of coastal marine taxa. In order to investigate the phylogeographic structure of coastal marine taxa around New Zealand's coastline and to investigate the processes that may contribute toward this genetic structure, I analysed mitochondrial DNA genes from limpet species of the Cellana genus. Phylogenetic analyses of the ribosomal 12S and 16S DNA genes showed that C. ornata may approximate the founding lineage to New Zealand, but these genes were unable to resolve between contrasting biogeographic hypotheses about the origin of Cellana in New Zealand. Intraspecific analyses of the mitochondrial cytochrome b gene from populations throughout the biogeographic range of Cellana ornata, C. radians and C. flava showed concordant genetic discontinuity at Cook Strait. Further analyses suggest that allopatric fragmentation and restricted gene flow have caused significant genetic differentiation between populations of the North and South Island. Demographic expansion was also identified for C. radians. The influence of contemporary nearshore currents and sea surface temperature was assessed using the mitochondrial cytochrome b gene for C. radians and C. ornata. Low levels of genetic differentiation between populations corresponding to 'current-zones' suggests that contemporary oceanic processes may be contributing to the genetic pattern observed for these species. However, the shallow divergence between haplotypes and populations restricted thorough investigation of contemporary gene flow. Genealogical concordance across co-distributed marine taxa of New Zealand also lends support to the historic association of genetic and species discontinuities with recent geological changes, such as sea level fluctuations.

    Keywords
    phylogeography; mollusc; marine biogeography
    Rights
    Copyright Sharyn Jane Goldstien
    https://canterbury.libguides.com/rights/theses

    Related items

    Showing items related by title, author, creator and subject.

    • Investigating the Sound Change in the New Zealand English Nurse Vowel /ᴈ:/ 

      Maclagan M; Watson CI; Harlow R; King J; Keegan P (Informa UK Limited, 2017)
      © 2017 The Australian Linguistic Society. Although there have been many studies of New Zealand English (NZE) vowels, little has been written about the nurse vowel /ɜ:/. This study uses data from three groups of Māori ...
    • Utilitarian Cycling: Investigating Latent Demand in Christchurch, New Zealand 

      Taylor, Katherine Jane (University of Canterbury. Geography, 2009)
      Christchurch, New Zealand, has relatively low rates of utilitarian cycle use. Six percent of commuters cycle so there is considerable potential for increasing utilitarian cycling, cycling for the purpose of getting to a ...
    • Investigations of the physiology and genetics of the New Zealand conifers : rimu, kahikatea and totara 

      Hawkins, Barbara Jane (University of Canterbury, 1988)
      Several experiments were undertaken to examine some of the physiological and genetic factors which affect the distribution of rimu, kahikatea and totara, and which contribute to the overall geographic dominance of rimu in ...
    Advanced Search

    Browse

    All of the RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThesis DisciplineThis CollectionBy Issue DateAuthorsTitlesSubjectsThesis Discipline

    Statistics

    View Usage Statistics
    • SUBMISSIONS
    • Research Outputs
    • UC Theses
    • CONTACTS
    • Send Feedback
    • +64 3 369 3853
    • ucresearchrepository@canterbury.ac.nz
    • ABOUT
    • UC Research Repository Guide
    • Copyright and Disclaimer
    • SUBMISSIONS
    • Research Outputs
    • UC Theses
    • CONTACTS
    • Send Feedback
    • +64 3 369 3853
    • ucresearchrepository@canterbury.ac.nz
    • ABOUT
    • UC Research Repository Guide
    • Copyright and Disclaimer