Index Catalog // ScholarsArchive@OSU

Population Genetics of American Pika (Ochotona princeps) : Investigating Gene Flow and Genetic Diversity Across Multiple, Complex Landscapes

Creator:: Castillo, Jessica A.
Abstract:: American pikas (Ochotona princeps) are considered an indicator species of climate change. Adaptations for cold climates and active winters make pikas particularly sensitive to increasing temperatures. This, combined with evidence that multiple historically occupied populations have been extirpated within the past century, contributed to American pikas becoming a focal species...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Jessica A. Castillo for the degree of Doctor of Philosophy in Wildlife

Life History Trade-offs: The Effects of Habitat Selection on Columbian Black-tailed Deer Survival in Oregon

Creator:: Clark, Jessica S.
Abstract:: The assessment of habitat quality for wild populations requires evaluation of vital rates associated with the use of that habitat. Factors associated with bottom-up (forage) or top-down (predation) regulation and the relative contribution of these processes on ungulate populations are difficult to quantify, especially for a cryptic, but widely distributed...
Resource Type:: Masters Thesis
Full Text:: Jessica Clark for the degree of Master of Science in Wildlife Science presented on March 2, 2022. Title

Cultural and Environmental Creencias (Beliefs) and Latin@ Outdoor Recreation in the Willamette Valley of Oregon

Creator:: Justiniano, Isabel
Abstract:: In Oregon, outdoor recreation activities have continued to grow in popularity, as has the overall Latin@ population of the state. With the continual population increase of this ethnic group, researchers have focused on understanding their outdoor recreation habits through an environmental justice lens. This includes accessibility, affordability, and other barriers...
Resource Type:: Masters Thesis
Full Text:: . I’d also like to thank my committee members, Jessica Miller, Daniel López- Cevallos, and Ashley

Jumping in with Both Feet: Exploring Factors that Shape Juvenile Amphibian Movement

Creator:: Bredeweg, Evan M.
Abstract:: Investigation into how animals move within the landscape is important for both understanding of ecological processes and conservation management. Animal movement is important in shaping life history transitions, demographics, individual fitness, and species distributions. However, as landscapes become increasingly affected by human activities, movement becomes important as species navigate landscapes...
Resource Type:: Dissertation
Full Text:: , Kate Self, Peter Kappes, Linsey Arnold, Jessica Castillo Vardaro, Doni Schwalm, Evan Jackson, Jessica

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

Creator:: Johnson, Tracey N.
Abstract:: In grasslands, grazing by large ungulates can influence vegetation structure, composition, primary productivity, and ultimately, ecosystem functioning. While grazing represents a complex disturbance, grazing intensity largely determines the effects of grazing on vegetation. Structural and compositional changes in the plant community caused by grazing could have bottom-up effects on species...
Resource Type:: Dissertation
Full Text:: , Joseph Smith, Michel Therrien, and Jessica Torres. I would especially like to acknowledge Andrea

Worldwide phylogeography and local population structure of the rough-toothed dolphin (Steno bredanensis)

Creator:: Albertson, G. Renee
Abstract:: Several dolphin species have global distributions. The extent of their radiation and limits to gene flow are presumably a product of oceanographic features both recent and historical, behavioral specializations and social organization. Rough-toothed dolphins (Steno bredanensis) are globally distributed in tropical and subtropical waters and are generally found in depths...
Resource Type:: Dissertation

Landscape features affecting genetic diversity and structure in East African ungulate species

Creator:: Crowhurst, Rachel Selena
Abstract:: Habitat loss and fragmentation is a crisis affecting wildlife worldwide. In Tanzania, East Africa, a dramatic and recent (<80 years) expansion in human settlement and agriculture threatens to reduce gene flow among protected areas for many species of large mammals. Wildlife linkages can mitigate population isolation, but linkage designs lacking...
Resource Type:: Masters Thesis
Full Text:: your thoughtful advice. Thank you also to the Epps lab members (Katie, Mark, Jessica, Anne, Tyler

Fine scale foraging behavior of gray whales in relation to prey fields and vessel disturbance along the Oregon Coast

Creator:: Sullivan, Florence A.
Abstract:: The desire to understand the spatial and temporal drivers of animal behavior and distribution relative to scale is central to movement ecology. Optimal foraging theory states that a predator should continue exploiting a patch until it is no longer profitable to do so. As human developments increasingly encroach on the...
Resource Type:: Masters Thesis
Full Text:: to Jessica Andrade and Michelle Stowell for reminding me to step away from my desk and go dancing

Using Spatial Capture-Recapture to Estimate Density of Roosevelt Elk in Western Oregon

Creator:: Nelson, Jennifer E.
Abstract:: Spatial capture-recapture (SCR) is employed for estimating abundance and density of species, particularly those that are cryptic or solitary, and evaluating how population density varies with habitat. However, it is uncertain whether estimates are biased when applied to species that aggregate, such as elk (Cervus canadensis). Wildlife managers in the...
Resource Type:: Masters Thesis
Full Text:: samples sexed female (F), male (M), and unknown (U) are indicated. In 2019, one male was censored to

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

Creator:: Steingass, Sheanna M.
Abstract:: Pacific harbor seals (Phoca vitulina richardii) are one of Oregon’s most common coastal predators, numbering between 10,000 and 12,000 individuals (Brown et al. 2005b). They consume more than 149 species or types of marine prey within the Pacific Northwest, which include a large variety of commercially important fisheries species. Despite...
Resource Type:: Dissertation
Full Text:: Florence Sullivan, Jessica Andrade, Amanda Holdman, Breeze Kelley, Miram Gleiber, Mee-ya Monnin, Norma

ScholarsArchive@OSU

Population Genetics of American Pika (Ochotona princeps) : Investigating Gene Flow and Genetic Diversity Across Multiple, Complex Landscapes

Life History Trade-offs: The Effects of Habitat Selection on Columbian Black-tailed Deer Survival in Oregon

Cultural and Environmental Creencias (Beliefs) and Latin@ Outdoor Recreation in the Willamette Valley of Oregon

Jumping in with Both Feet: Exploring Factors that Shape Juvenile Amphibian Movement

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

Worldwide phylogeography and local population structure of the rough-toothed dolphin (Steno bredanensis)

Landscape features affecting genetic diversity and structure in East African ungulate species

Fine scale foraging behavior of gray whales in relation to prey fields and vessel disturbance along the Oregon Coast

Using Spatial Capture-Recapture to Estimate Density of Roosevelt Elk in Western Oregon

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

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