Graduate Theses and Dissertations - Biology
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Population genetic differentiation, mating system, and effective population size of the tuliptree (Liriodendron tulipifera L.) in the Mid-Atlantic United States
(Georgetown University, 2017)Continuous natural habitats are increasingly transformed into anthropogenic landscapes —mosaics of natural habitats fragments surrounded by heterogeneous mixtures of different land use. Anthropogenic habitat transformation ... -
Interactions Between Social Structure, Contact Networks, and Infectious Disease Spread in Wildlife Populations
(Georgetown University, 2017)Socially complex species that live in large groups are traditionally considered to have elevated risks of disease transmission. Beyond group size, it is being increasingly recognized that the dynamics of infection spread ... -
The Hydrodynamic Model of Giardia lamblia Attachment
(Georgetown University, 2017)Giardia lamblia is a flagellated, intestinal parasite that resists peristalsis by attaching to the intestinal wall. Despite investigation over the past 40 years, the mechanism of attachment remains controversial. Here we ... -
The Population and Ecological Genetic Effects of Habitat Fragmentation
(Georgetown University, 2017)Maintaining intraspecific variation is important for populations’ long-term success and is increasingly being recognized as an important conservation goal. Populations in anthropogenically fragmented habitats may lose ... -
Social factors affecting female behavior, ecology, and fitness in wild bottlenose dolphins
(Georgetown University, 2016)In humans and non-human animals alike, the social environment presents context-dependent costs and benefits. Some species face extreme pressures resulting from divergent fitness traits among the sexes, leading to pronounced ...
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