Index Catalog // ScholarsArchive@OSU

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:: -defenestration’ and for regularly encouraging me not to do it. I thank my committee members, Sue Haig and Mike

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

Creator:: Malachowski, Christopher P.
Abstract:: The endangered Hawaiian Duck (koloa maoli; Anas wyvilliana), a non-migratory and island-endemic species, experienced a significant population decline during the twentieth century due to factors such as habitat loss, overharvest, introduced mammalian predators, and hybridization with introduced feral Mallards (A. platyrhynchos). A key objective for Hawaiian Duck recovery is to...
Resource Type:: Masters Thesis
Full Text:: refining my thinking about wildlife science. I also thank my committee members, Dr. Susan Haig and Dr

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Creator:: Malachowski, Christopher P.
Abstract:: Fundamental objectives in the field of conservation biology involve understanding the processes that influence small and declining populations and applying that knowledge to develop appropriate monitoring strategies and targeted management and conservation actions. Critical first steps in determining the relative role of factors that drive population declines involves estimation of...
Resource Type:: Dissertation
Full Text:: my committee members – Dr. Susan Haig, Dr. Nathan Schumaker, and Dr. Michael Adams – for their

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

Creator:: Eddy, Sarah L.
Abstract:: Sexual selection can influence the mating system of an organism through multiple mechanisms. These mechanisms result in variation in reproductive success among individuals, and include scramble competition, endurance rivalries, contests, mate choice and cryptic choice, and sperm competition. Understanding the mating system of a species requires the identification of which...
Resource Type:: Dissertation
Full Text:: Haig, Kathy Magnusson and Bob Mason. I am also incredibly grateful for my labmates (both here at

The effects of land use change, climate change, and conservation on waterbird habitat in the Upper Klamath Basin

Creator:: Dennis, Jami R.
Abstract:: The Upper Klamath Basin is an ecologically significant watershed that supports millions of migratory waterbirds along the Pacific Flyway in addition to an agricultural economy and a tribal fishery. This literature review and annotated bibliography is the basis for a capstone project to address the history, evolution, impacts, and responses...
Resource Type:: Capstone Project
Full Text:: and quantity due to climate change impacts (Haig et al., 2019). Studies have also shown that

Disturbance and roosting ecology of California brown pelicans (Pelecanus occidentalis californicus) on East Sand Island in the Columbia River Estuary

Creator:: Wright, Sadie K.
Abstract:: The California brown pelican (Pelecanus occidentalis californicus) is listed as an endangered species under the U.S. Endangered Species Act. The Recovery Plan for this subspecies outlines the need to "Assure long-term protection of adequate food supplies and essential. . .roosting. . . habitat throughout the range." I investigated the effects...
Resource Type:: Masters Thesis
Full Text:: Columbia River estuary. I also want to thank Dr. Jane Lubchenco and Dr. Susan Haig for their participation

Conservation and spatial use analyses for the recovery of bighorn sheep in the Peninsular Ranges

Creator:: Ostermann, Stacey D.
Abstract:: The status of wild sheep in North America typifies the plight of many wildlife species in modern times: wild sheep have declined to 10-40% of their numbers during pristine times and on a global scale approximately 31% of Caprine are considered threatened or critical. As human populations and the number...
Resource Type:: Masters Thesis

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

Creator:: Kesler, Dylan C.
Abstract:: Island systems and species are susceptible to extinction because of their small population size and an ecological naiveté from an evolutionary past lacking strong competition and predation. For example, only one-fifth of the world’s bird species occur on islands, yet more than 90% of the avian extinctions witnessed during historic...
Resource Type:: Dissertation
Full Text:: I am most indebted to my major advisor, Dr. Susan M. Haig, for her support, advice, and dedication

An econometric analysis of output supply and input demand in the Oregon softwood lumber and plywood industries

Creator:: Guerrero Ochoa, Isabel G.
Abstract:: The present study employs a normalized restricted quadratic profit function approach to estimate lumber and plywood supply and Marshallian factor demand elasticities for four region-product combinations in Oregon for the period 1970-2010. The four log demand functions will be employed as the "demand side" of the log market model of...
Resource Type:: Capstone Project
Full Text:: . 17 Chapter 5 Bibliography Adams, D. M. and R. W. Haynes. 1996. The 1993 Timber

An analysis of the viability of ranked set sample methodologies based on the evaluation of Dyess AFB B-47 crash site radiological contamination survey data and theoretical modifications

Creator:: Miller, Vivien J.
Abstract:: Since Ranked Set Sampling (RSS) was proposed in 1952 by G.A. McIntyre, it has been the subject of many statistical investigations and a large number of field studies. Throughout these studies RSS has been proven to provide a better estimate of population the mean and variance than Simple Random Sampling...
Resource Type:: Masters Thesis
Full Text:: by the Matlab code for m=3…………32 Figure 3.2 Matlab produced figures of RSS locations

ScholarsArchive@OSU

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

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

The effects of land use change, climate change, and conservation on waterbird habitat in the Upper Klamath Basin

Disturbance and roosting ecology of California brown pelicans (Pelecanus occidentalis californicus) on East Sand Island in the Columbia River Estuary

Conservation and spatial use analyses for the recovery of bighorn sheep in the Peninsular Ranges

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

An econometric analysis of output supply and input demand in the Oregon softwood lumber and plywood industries

An analysis of the viability of ranked set sample methodologies based on the evaluation of Dyess AFB B-47 crash site radiological contamination survey data and theoretical modifications

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