Diversification of life history strategy within a species is thought to produce more temporally stable populations because of the complementary or independent dynamics among population components in their response to environmental perturbation. The partitioning of risk amongst p…
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Since the early 1900s, elk (Cervus canadensis nelsoni) populations throughout much of the Rocky Mountain west have expanded in size and geographic range. Simultaneously, humans and agriculture production have encroached into natural elk habitat, and human-elk conflicts have aris…
Investigating individual-based habitat settlement and space use decisions (i.e., how individuals distribute themselves across a landscape) is a central theme in ecology, with potential consequences for fitness (e.g., survival, reproduction). Among mammals, habitat selection and …
North American bat species face a range of environmental stressors which have negatively impacted recovery of the endangered Indiana bat (Myotis sodalis) and led to inclusion of the northern long-eared bat (Myotis septentrionalis) as a federally threatened species. Historic thre…
Climate change is altering thermal regimes in aquatic systems worldwide, often impacting species on the southern edges of their ranges in the northern hemisphere. Yellow Perch, Perca flavescens, a cool water species, have a patchy distribution at the southern edge of their range…
Cities are complex socioecological systems that require data collection methods that are equal in their ability to capture ecological patterns and social inequity. Social inequity in cities is apparent through lasting environmental legacies, such as in tree cover, which reflects…
The aim of this dissertation is to use evidence-based research to better understand the ecology of the endangered Ganges River dolphins (GRD, Platanista gangetica gangetica) in Nepalese waterways to account for the potential roles that river dolphins play in riverine ecosystems …
Separating the contribution of habitat filtering and dispersal mechanisms in forming species distribution remains a challenge in community ecology. Despite the effect of environmental variables in structuring communities, only restricted numbers of them were considered as a habi…
Identification of biomarkers that reflect physiological status is fundamental for assessing population health, as well as providing more accurate estimates of life history parameters. Blue (Balaenoptera musculus) and gray (Eschrichtius robustus) whale populations feed on lower t…
Stream connectivity is necessary for the persistence and viability of migratory fish populations. However, many of the world’s river contain dams, creating barriers or obstacles that can impede movement. Fishways have been constructed to provide passage for migratory fishes, but…
Southern Flounder (Paralichthys lethostigma) is an economically important species that uses habitats across salinity gradients along the Atlantic Ocean and Gulf of Mexico. During winter, adults spawn offshore, and larvae migrate to estuaries. During spring, larvae settle, grow, …
Two of the most prominent contemporary goals of ecology are to: 1) understand how populations are regulated through variation in the rates of births and deaths and, 2) to elucidate, anticipate, and mitigate the impacts of climate change and other environmental changes on wildlif…
Blue catfish Ictalurus furcatus is an invasive species of great concern in coastal habitats throughout the eastern United States, inclulding the Chesapeake Bay and its tributaries. In this dissertation, I use field surveys, laboratory experiments and quantitative modeling to pro…
Anthrozoology is a relatively new field of study in the world of academia. This discipline, which includes researchers ranging from social studies to natural sciences, examines human-animal interactions. Understanding what affect these interactions have on a person’s perception …
Connectivity is essential for the maintenance of genetic diversity and stability of wildlife populations. However, aquatic habitats are becoming more isolated, particularly in semiarid regions of the southwestern United States. An artificial aquatic mosaic of stock tanks often r…
Effective measures for the conservation of biodiversity require an understanding of the extent and distribution of diversity within and among species. Studies focussed on providing such understanding can benefit from increasingly powerful and accessible genome-wide data. Overexp…
Translocations have the potential to aim conservation efforts as well as to reduce mortality caused by human activities. Eastern diamondback rattlesnakes (Crotalus adamanteus, EDB) have a limited ability to adapt to habitat loss and fragmentation due to the species’ slow life hi…
The capacity for human-wildlife conflict is increasing as anthropogenic development continues to expand across the planet. Many species of wildlife experience adverse anthropogenic effects on their behavior, life history, and ecology. Behavioral changes often manifest as shifts …
In Lake Oahe, a large mainstem Missouri river reservoir that spans 375 river kilometers in central North and South Dakota, naturalized Rainbow Smelt are the primary forage species for a regionally important Walleye Sander vitreus fishery. Walleye condition in Lake Oahe is highly…