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Evolution of Body Mass in Coleoptera: Insights from Museum Specimens and DNA Barcodes

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Title: Evolution of Body Mass in Coleoptera: Insights from Museum Specimens and DNA Barcodes
Author: Hu, Jingchan
Department: Department of Integrative Biology
Program: Integrative Biology
Advisor: Hebert, Paul
Abstract: This thesis investigates the evolution of body mass in Coleoptera, one of the most diverse orders of animals. By quantifying the mass of over 3,000 Canadian species using museum specimens stored at the Centre for Biodiversity Genomics, it describes fundamental yet under-investigated aspects of body mass variation in Coleoptera, such as species-size distributions and the partitioning of variation at different taxonomic levels. Using DNA barcode sequences and backbone phylogenies, it also illustrates trajectories of mass evolution, evaluating the influence of phylogenetic constraints and ecological specialization. Both lineage-wide patterns as well as phylogenetic parameters in Coleoptera appear to diverge strongly from trends noted in vertebrate groups, providing new insights into the evolution of a fundamental biological trait. As well, this thesis provides direction and methodologies for future studies to utilize museum specimens in investigations of arthropod body mass.
Date: 2019-12
Rights: Attribution-NonCommercial 4.0 International
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Hu_Jingchan_201912_MSc.pdf 2.998Mb PDF View/Open Main article
JH_MSc_Coleoptera_mass_data_by_BIN.csv 223.2Kb Unknown View/Open Body mass data
JH_MSc_RCode.txt 19.53Kb Text file View/Open R Code

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Attribution-NonCommercial 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial 4.0 International