Biology ETDs
Publication Date
Fall 11-15-2021
Abstract
Comparative phylogeography has historically been defined as the study of how genetic variation of co-distributed species has been shaped by biogeographical history. This is a mature field of study out of which several techniques have been developed directed at identifying the role ecology and geography in diversification patterns across time. I employ the tools developed in classical comparative phylogeography across multiple taxonomic scales and across regions that historically have been understudied. My first two chapters study the complex history of host-switching, codiversification, and reassortment of hantaviruses in their mammal hosts across North America. By taking a host-centric comparative phylogeographic approach to pathogen divergence, I highlighted complex evolutionary processes in host-pathogen systems and the role of host history in shaping the distribution and diversity of pathogens. My final chapter uses a comparative approach to examine the interplay between ecology and climate in shaping divergence and contact within four East Asian pika species during the Quaternary. I show that small mammals in this vast, poorly studied region responded to Pleistocene climatic cycling on finer geographic scales when compared to the North American fauna that is distributed at similar latitudes.
Language
English
Keywords
phylogeography, pikas, shrews, hantavirus
Document Type
Dissertation
Degree Name
Biology
Level of Degree
Doctoral
Department Name
UNM Biology Department
First Committee Member (Chair)
Joseph Cook
Second Committee Member
Helen Wearing
Third Committee Member
Steven Bradfute
Fourth Committee Member
Don Natvig
Recommended Citation
Liphardt, Schuyler W.. "Comparative Phylogeography Across Multiple Scales: Small Mammals, Their Ecology, Pathogens, and Drivers of Diversification." (2021). https://digitalrepository.unm.edu/biol_etds/387