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Testing macroevolutionary hypotheses: diversification and phylogenetic implications
This dissertation research tests macroevolutionary hypotheses in a large vertebrate group (Reptilia: Serpentes), and detects methodological problems of using molecular data to test macroevolutionary hypotheses. The first ...
Diversification and Phylogeography of Synthyris (Plantaginaceae) in Northwestern North America
Both climatic and geologic activity can shape the distributions of species by altering the habitat in which they live and necessitating populations to either migrate, adapt, elsewise they may go extinct. Migration offers ...