Abstract Theory suggests that different taxa having colonized a similar, challenging
environment will show parallel or lineage-specific adaptations to shared selection …

Adaptation to local environments is common in widespread species and the basis of
ecological speciation. The song sparrow (Melospiza melodia) is a widespread, polytypic …

The effects of anthropogenic landscape change on genetic population structure are well
studied, but the temporal and spatial scales at which genetic structure can develop …

Abstract Seaside Sparrows (Ammospiza maritima) are tidal salt marsh endemic passerines
found along the Atlantic and Gulf coasts of North America. Currently, there are 7 described …

Understanding the processes that drive divergence within and among species is a long‐
standing goal in evolutionary biology. Traditional approaches to assessing differentiation …

The concept of the ecological niche is fundamental to understanding constraints on species
distributions in space and time, and in explaining the origin and maintenance of biodiversity …

Natural selection acts on functional molecular variation to create local adaptation, the “good
fit” we observe between an organism's phenotype and its environment. Genomic …

Populations that have recently diverged across sharp environmental gradients provide an
opportunity to study the mechanisms by which natural selection drives adaptive divergence …

Low genomic divergence and high gene flow between locally adapted populations of the swamp
sparrow Page 1 1 Title: Low genomic divergence and high gene flow between locally adapted …

This dissertation examines the effects of anthropogenic landscape change on the population
structure, functional connectivity, and extinction risk of the Hawaiian gallinule (Gallinula …