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The effect of urbanization on reproduction and selection on floral traits in the wildflower, Linaria vulgaris

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dc.contributor.advisor Caruso, Christina Longley, Ariana 2019-09-12T17:28:09Z 2019-09-12T17:28:09Z 2019-09 2019-08-22 2019-09-12
dc.description.abstract Urbanization-induced changes to the environment may affect reproduction and evolution within plant populations. These changes include habitat fragmentation, which may reduce genetic diversity within urban populations, and decreased pollinator activity, which may increase competition for pollinators between plants. To test if these changes could influence reproduction and selection on reproductive traits within urban plant populations, I performed hand-pollinations and measured phenotypic selection on floral traits in the self-incompatible plant, Linaria vulgaris, along urban to rural gradients. I found that compatible mate availability hindered reproductive success within urban populations and evidence of the breakdown of self-incompatibility in urban and rural populations. I found no difference in selection on floral traits between urban and rural populations, but floral traits were larger in urban areas. My study suggests that floral traits will not continue to diverge between urban and rural populations, however mate availability maybe an underappreciated limit on reproduction in urban populations. en_US
dc.language.iso en en_US
dc.subject plants en_US
dc.subject evolution en_US
dc.subject ecology en_US
dc.subject urbanization en_US
dc.subject urban en_US
dc.subject rural en_US
dc.subject gradient en_US
dc.subject selection en_US
dc.subject floral traits en_US
dc.subject breakdown of self-incompatibility en_US
dc.subject compatible mate availability en_US
dc.subject reproductive success en_US
dc.subject reproduction en_US
dc.subject Linaria vulgaris en_US
dc.subject hand pollination en_US
dc.subject habitat fragmentation en_US
dc.subject pollinator declines en_US
dc.title The effect of urbanization on reproduction and selection on floral traits in the wildflower, Linaria vulgaris en_US
dc.type Thesis en_US Integrative Biology en_US Master of Science en_US Department of Integrative Biology en_US
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