Index Catalog // ScholarsArchive@OSU

Crop-milk cycles in band-tailed pigeons and losses of squabs due to hunting pigeons in September

Creator:: Zeigler, Don L.
Abstract:: The production of crop-milk in band-tailed pigeons was investigated to estimate losses of squabs that occur from hunting pigeons during September.¹ Living birds held captive were examined with a cystos cope and pigeons killed by hunters were examined in the field to determine changes in gross appearance of crops and...
Resource Type:: Masters Thesis
Full Text:: squabs due to hunting pigeons in September AN ABSTRACT OF THE THESIS OF Don Leslie Zeigler for the

The effects of water withdrawals on the emergence timing, adult body mass, and total emerging biomass of aquatic insects from two northeast Oregon rivers

Creator:: Brown, Phil D.
Abstract:: Small low-head diversion dams are capable of removing much of the flow of a river, often resulting in increased water temperatures and habitat loss. Warmer temperatures have been shown to accelerate aquatic invertebrate growth and development, and discharge reductions can reduce instream habitat, suggesting that water withdrawals may alter both...
Resource Type:: Masters Thesis
Full Text:: also appreciated. I owe a debt of gratitude to Dr. Don Horneck for taking a very active role in my

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Creator:: Schuyler, Elizabeth
Abstract:: The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Resource Type:: Dissertation
Full Text:: guidance on this demanding, yet fulfilling endeavor. Many thanks to Don Whittaker for his continued

Juvenile coho salmon movement, growth and survival in a coastal basin of southern Oregon

Creator:: Weybright, Adam D.
Abstract:: Juvenile salmonids display highly variable spatial and temporal movement patterns that are influenced by density dependent (e.g., competition, predation) and density independent (e.g., genetics, stream discharge, physical habitat conditions) factors. The effects of these factors differ with fish life history stage, but will ultimately affect how salmonids utilize freshwater nursery...
Resource Type:: Masters Thesis
Full Text:: . Members of my committee, Joe Ebersole, Gordon Reeves, and Don Larson, were instrumental in forming the

Relationship between plant and butterfly community composition on upland prairies of the Willamette Valley, Oregon

Creator:: York, Melissa M.
Abstract:: Small remnants of 'natural' habitats exist today throughout much of the world. Upland prairies in the Willamette Valley, Oregon have been nearly eliminated by conversion to agriculture and other uses. As a result, very few prairies remain and at least four butterfly species that require this habitat appear to be...
Resource Type:: Masters Thesis
Full Text:: and Butterfly Community Composition on Upland Prairies of the Willamette Valley, Oregon. A Daniel K

Regional variation in mtDNA of the lesser prairie-chicken

Creator:: Hagen, Christian A., Pitman, James C., Sandercock, Brett K., Wolfe, Don H., Robel, Robert J., Applegate, Roger D., and Oyler-McCance, Sara J.
Abstract:: Cumulative loss of habitat and long-term decline in the populations of the Lesser Prairie-Chicken (Tympanuchus pallidicinctus) have led to concerns for the species’ viability throughout its range in the southern Great Plains. For more efficient conservation past and present distributions of genetic variation need to be understood. We examined the...
Resource Type:: Article
Full Text:: , Nashville, Tennessee 37204. CHRISTIAN A. HAGEN1,5, JAMES C. PITMAN1,6, BRETT K. SANDERCOCK1, DON H. WOLFE2

Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna caspia) in the Columbia River Estuary

Creator:: Anderson, Scott K.
Abstract:: This study was designed to enhance understanding of factors influencing foraging distribution, diet composition, and overall reproductive success of Caspian terns (Sterna caspia) nesting on East Sand Island in the Columbia River estuary. This colony of nearly 10,000 breeding pairs is of concern to regional resource managers because Caspian terns...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Scott K. Anderson for the degree

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:: AN ABSTRACT OF THE THESIS OF Sadie K. Wright for the degree of

Humpback Whale (Megaptera novaeangliae) Calling Behavior In Southeast Alaska : A Study In Acoustic Ecology And Noise

Creator:: Fournet, Michelle E. H.
Abstract:: Humpback whales (Megaptera novaeangliae) are a widely distributed baleen whale species, well known for their diverse acoustic behavior. On high-latitude foraging grounds, humpback whales produce a suite of non-song vocalizations (“calls”) in concert with foraging and social behavior. In this dissertation I investigated the role of calls in the acoustic...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Holger Klinck David K. Mellinger Humpback whales (Megaptera novaeangliae) are a widely

A simulation model of wood dynamics in Pacific Northwest streams

Creator:: Meleason, Mark Alan
Abstract:: Conceptually, the dynamics of wood in streams can be viewed in terms of input and in-channel processes. Input processes are associated with both the riparian (tree fall, bank cutting, windthrow) and upslope forests (mass failures). In-channel processes include log breakage, movement, and decomposition. A mechanistic view of these processes is...
Resource Type:: Dissertation
Full Text:: (Raf.) Sarg.), western red cedar (Thuja plicata D. Don ex Lambert), and red alder (Alnus rubra Bong

ScholarsArchive@OSU

Crop-milk cycles in band-tailed pigeons and losses of squabs due to hunting pigeons in September

The effects of water withdrawals on the emergence timing, adult body mass, and total emerging biomass of aquatic insects from two northeast Oregon rivers

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Juvenile coho salmon movement, growth and survival in a coastal basin of southern Oregon

Relationship between plant and butterfly community composition on upland prairies of the Willamette Valley, Oregon

Regional variation in mtDNA of the lesser prairie-chicken

Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna caspia) in the Columbia River Estuary

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

Humpback Whale (Megaptera novaeangliae) Calling Behavior In Southeast Alaska : A Study In Acoustic Ecology And Noise

A simulation model of wood dynamics in Pacific Northwest streams

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