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Insights into post-glacial colonization of sub-arctic environments: Using beetle phylogeny to determine the role of feeding strategy

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dc.contributor.advisor Adamowicz, Sarah
dc.contributor.author Pyle, Michelle
dc.date.accessioned 2018-09-04T15:40:08Z
dc.date.available 2018-09-04T15:40:08Z
dc.date.copyright 2018-07
dc.date.created 2018-08-23
dc.date.issued 2018-09-04
dc.identifier.uri http://hdl.handle.net/10214/14171
dc.description.abstract This thesis investigates the diversity and distributions of Coleoptera in northern North America. Beetles were sampled in Churchill, Manitoba, adding to the DNA barcode sequence library. While previous sampling efforts showed near-complete species coverage for this sub-arctic region, my new samples filled gaps in several under-sampled families (e.g. Staphylinidae). These new specimens along with publicly available records were then analyzed to investigate the influence of feeding strategy on species richness across temperature zones, using both non-phylogenetic and phylogenetic analysis methods. Predacious species were relatively more successful in colder zones than herbivores; in warmer zones, herbivores, fungivores, and predators were all successful. This thesis presents a unique macroecological analysis using a novel analysis pipeline written in R together with a large dataset of georeferenced DNA sequence data and temperature data, yielding new insights into the role of traits in structuring the latitudinal species diversity gradient. en_US
dc.description.sponsorship Discovery Grant from the Natural Sciences and Engineering Research Council of Canada (NSERC), Northern Research Fund (NRF), Northern Scientific Training Program (NSTP) en_US
dc.language.iso en en_US
dc.subject Coleoptera, beetles, diversity gradient, sub-arctic, temperature gradient en_US
dc.title Insights into post-glacial colonization of sub-arctic environments: Using beetle phylogeny to determine the role of feeding strategy en_US
dc.type Thesis en_US
dc.degree.programme Integrative Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Integrative Biology en_US


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