Index Catalog // ScholarsArchive@OSU

Assessing how morphology of female desert bighorn sheep varies with climate in the Mojave Desert of California

Creator:: Torres, Jose A.
Abstract:: Understanding how spatial variation in climate correlates with phenotypic variation among individuals may offer insights about local adaptation, population performance, and species’ response to climate change. Desert bighorn sheep (Ovis canadensis nelsoni) in the Mojave Desert of southern California experience a broad range of temperature and aridity, inhabiting mountain ranges...
Resource Type:: Honors College Thesis
Full Text:: in Fisheries, Wildlife, and Conservation presented on March 8, 2023. Title: Assessing how

Fifty years of change in a Pacific Northwest winter forest bird community

Creator:: Clements, Nolan
Abstract:: North American bird populations have declined throughout the past half century. The majority of studies quantifying these declines have focused on spring and summer breeding birds; not the season of scarcity, winter. We re-surveyed 7 large study plots in Douglas fir forests initially surveyed in winter during the late 1960s...
Resource Type:: Honors College Thesis
Full Text:: requirements for the degree of Honors Baccalaureate of Science in Fisheries, Wildlife, and

Variation of the Trowbridge's shrew (Sorex trowbridgii) diet across forest types in the Oregon Cascades

Creator:: Yates, Margaret E.
Abstract:: Investigating the insectivorous diet of the Trowbridge’s shrew (Sorex trowbridgii) across forest types can illustrate how forest management affects biotic communities. I used DNA metabarcoding methods with ANML primers to identify stomach and intestines contents from shrews caught in pitfall traps in the HJ Andrews Experimental Forest (HJA) and Willamette...
Resource Type:: Honors College Thesis
Full Text:: Science in Fisheries and Wildlife Sciences (Honors Scholar) Presented May 26, 2020

Influence of Soil Texture on Carbon Storage of PNW Coastal Blue Carbon Ecosystems

Creator:: Fox, Conner S.
Abstract:: Coastal blue carbon ecosystems offer a variety of important ecosystem services, including exceptional rates of carbon sequestration and long-term carbon storage. Because these ecosystems disproportionately influence global carbon cycling, understanding their soil characteristics may help guide long-term climate change mitigation and adaptation strategies. Recently, Kauffman et al. (2020) observed the...
Resource Type:: Honors College Thesis
Full Text:: Honors Baccalaureate of Science in Fisheries and Wildlife Science (Honors Scholar) Presented

Assessing variation in coyote (Canis latrans) diet across three sagebrush steppe sites with different levels of juniper encroachment

Creator:: Kendall, Zachary D.
Abstract:: Juniper (Juniperus spp.) encroachment into the sagebrush steppe ecoregion is one of the main causes of sagebrush degradation and can alter the understory vegetative community by outcompeting native shrubs and grasses, which reduces the available forage and cover for small mammals. Coyotes (Canis latrans) are generalist, omnivorous predators in the...
Resource Type:: Honors College Thesis
Full Text:: Science in Fisheries and Wildlife Sciences (Honors Scholar) Presented May 18, 2020

Genetic and morphological evidence suggests cryptic speciation within the Torrent Sculpin, Cottus rhotheus, across the Pacific Northwest

Creator:: Nicholas, Benjamin P.
Abstract:: Dwelling on the bottom of large rivers to high alpine streams, freshwater sculpins (genus Cottus) occur in high densities across the Pacific Northwest, with 21 currently recognized species found in the Pacific Northwest. Sculpin fill many ecological roles, with some species serving as important prey sources, and others competing with...
Resource Type:: Honors College Thesis
Full Text:: Science in Fisheries and Wildlife Sciences (Honors Scholar) Presented May 28, 2019

Diversity and composition of mammal and bird communities in northern Pantanal, Brazil

Creator:: Coe, Lauren E.
Abstract:: The Pantanal is one of the largest wetlands in the world, covering 195,000 km2 across Brazil, Bolivia and Paraguay. It has a unique annual flooding regime with the majority of land being completely inundated during the wet season, which provides important habitat for threatened species such as jaguars (Panthera onca)...
Resource Type:: Honors College Thesis
Full Text:: Fisheries and Wildlife Science presented on June 4th, 2018. Title: Diversity and composition of mammal and

Early competitive environments differentially influence stress axis responses in sympatric, ecologically similar songbirds

Creator:: Hardt, Braelei M.
Abstract:: 1. Early competitive environments can shape the development of offspring across taxa. For example, competition for food can have downstream effects on offspring phenotypes and fitness; however, little is known about how early competition influences the development of the hypothalamic-pituitary axis and its potential tradeoff with growth. Because baseline and...
Resource Type:: Honors College Thesis
Full Text:: the requirements for the degree of Honors Baccalaureate of Science in Fisheries and Wildlife

Lack of Seasonality for Cercariae of Nanophyetus salmincola in the Snail Juga silicula

Creator:: Lofton, Shelby
Abstract:: Nanophyetus salmincola is a well-studied parasite of their definitive mammal hosts. However, the conditions that signal the time for shedding of N. salmincola cercariae from their first host, the juga snail (Juga silicula), is not fully understood. A digenetic trematode indigenous to the American Pacific Northwest, N. salmincola can be...
Resource Type:: Honors College Thesis
Full Text:: and Wildlife Science (Honors Associate) Presented August 9, 2016 Commencement

Effects of nesting waterbirds on nutrient levels in mangroves, Gulf de Fonseca, Honduras

Creator:: McFadden, Tyler Neal
Abstract:: Mangroves provide numerous ecosystem services, including biodiversity values such as nesting sites for piscivorous waterbirds. High concentrations of pisicivoirous birds are hypothesized to affect ecosystem dynamics, yet few studies have examined their effects in mangroves. We examined the effects of nutrient enrichment by colonial waterbirds at a mangrove rookery in...
Resource Type:: Honors College Thesis
Full Text:: for the degree of Honors Baccalaureate of Science in Fisheries and Wildlife Science presented on

ScholarsArchive@OSU

Assessing how morphology of female desert bighorn sheep varies with climate in the Mojave Desert of California

Fifty years of change in a Pacific Northwest winter forest bird community

Variation of the Trowbridge's shrew (Sorex trowbridgii) diet across forest types in the Oregon Cascades

Influence of Soil Texture on Carbon Storage of PNW Coastal Blue Carbon Ecosystems

Assessing variation in coyote (Canis latrans) diet across three sagebrush steppe sites with different levels of juniper encroachment

Genetic and morphological evidence suggests cryptic speciation within the Torrent Sculpin, Cottus rhotheus, across the Pacific Northwest

Diversity and composition of mammal and bird communities in northern Pantanal, Brazil

Early competitive environments differentially influence stress axis responses in sympatric, ecologically similar songbirds

Lack of Seasonality for Cercariae of Nanophyetus salmincola in the Snail Juga silicula

Effects of nesting waterbirds on nutrient levels in mangroves, Gulf de Fonseca, Honduras

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