Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/34393
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dc.contributor.advisorVallejo-Marin, Mario-
dc.contributor.advisorTinsley, Matt-
dc.contributor.authorNevard, Lucy-
dc.date.accessioned2022-06-02T13:18:10Z-
dc.date.issued2021-12-
dc.identifier.citationNevard, L., A. L. Russell, K. Foord, and M. Vallejo-Marín. 2021. Transmission of bee-like vibrations in buzz-pollinated plants with different stamen architectures. Scientific Reports 11: 13541. https://doi.org/10.1038/s41598-021-93029-7en_GB
dc.identifier.citationNunes, C. E. P., L. Nevard, F. Montealegre-Z, and M. Vallejo-Marín. 2021. Variation in the natural frequency of stamens in six morphologically diverse, buzz-pollinated, heterantherous Solanum taxa and its relationship to bee vibrations. Botanical Journal of the Linnean Society 197: 541-553. https://doi.org/10.1093/botlinnean/boab044en_GB
dc.identifier.urihttp://hdl.handle.net/1893/34393-
dc.description.abstractThe remarkable diversity of floral forms across angiosperms is largely shaped by interactions between plants and pollinators. Buzz-pollinated flowers have a tight relationship with bees, their primary pollinators, as they require externally produced vibrations for pollen release. These flowers have evolved various morphologies during this relationship, many of them variations on the same theme, yet the functional significance of these forms remains understudied. In this thesis, I examine the effects of different buzz-pollinated morphologies on plant-pollinator interactions. The species I studied vary in stamen arrangement and stamen dimorphism. First, I compared vibration transmission between flowers with contrasting stamen arrangements using artificial vibrations applied to a focal anther. Second, I used cantilever theory and displacement experiments to calculate the natural frequency of two different stamen types in six Solanum taxa, which differ in size and mating system. Third, I assessed bumblebee buzz characteristics on two of these species, to find out whether they match their natural frequency to each flower type. Finally, I asked whether the role of floral orientation differs between radial and bilateral buzz-pollinated flowers, by manipulating their orientations and measuring bumblebee-mediated pollen deposition on the stigmas. I found that the transmission of vibrations varies with stamen arrangement: more uniformly arranged flowers transmit vibrations more faithfully than non-uniform flowers and some arrangements promote the amplification of vibrations. I also found that stamen natural frequency differs between plants with differing mating systems. Bees do not appear to adjust their buzzing frequencies to match these natural frequencies, although they may respond to differences in pollen release. Last, I found that the horizontal orientation of bilateral flowers may function to increase pollen transfer in outcrossing flowers. These findings shed light on key biomechanical and behavioural aspects of buzz pollination and point to potential functions of different floral morphologies.en_GB
dc.language.isoenen_GB
dc.publisherUniversity of Stirlingen_GB
dc.rightsChapter 2 has been published as an Open Access article under a Creative Commons Attribution 4.0 International License: Nevard, L., A. L. Russell, K. Foord, and M. Vallejo-Marín. 2021. Transmission of bee-like vibrations in buzz-pollinated plants with different stamen architectures. Scientific Reports 11: 13541. https://doi.org/10.1038/s41598-021-93029-7 Part of chapter 3 has been published as an Open Access article under a Creative Commons Attribution 4.0 International License:: Nunes, C. E. P., L. Nevard, F. Montealegre-Z, and M. Vallejo-Marín. 2021. Variation in the natural frequency of stamens in six morphologically diverse, buzz-pollinated, heterantherous Solanum taxa and its relationship to bee vibrations. Botanical Journal of the Linnean Society 197: 541-553.en_GB
dc.subjectbuzz pollinationen_GB
dc.subjectbumblebeesen_GB
dc.subjectfloral morphologyen_GB
dc.subjectpollinationen_GB
dc.subjectbiomechanicsen_GB
dc.subjectSolanumen_GB
dc.subjectnightshadesen_GB
dc.subjectplant reproductionen_GB
dc.titleEffects of floral morphology on plant-pollinator interactions in buzz-pollinated flowersen_GB
dc.typeThesis or Dissertationen_GB
dc.type.qualificationlevelDoctoralen_GB
dc.type.qualificationnameDoctor of Philosophyen_GB
dc.rights.embargodate2023-06-01-
dc.rights.embargoreasonI am writing up two of the chapters for publication (one has been submitted to a journal already).en_GB
dc.contributor.funderNERC (Iapetus DTP)en_GB
dc.author.emaillmpnevard@gmail.comen_GB
dc.rights.embargoterms2023-06-02en_GB
dc.rights.embargoliftdate2023-06-02-
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