Index Catalog // ScholarsArchive@OSU

Effects of oil and natural gas development on territory occupancy of ferruginous hawks and golden eagles in Wyoming, USA

Creator:: Wallace, Zachary P.
Abstract:: Energy development is expanding rapidly across the western US. Negative effects have been documented for some wildlife, but consequences of development are unclear for other taxa, including raptors. We had the opportunity to examine effects of oil and natural gas development on two raptor species of conservation concern, ferruginous hawks...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________________ Patricia L. Kennedy Energy development is expanding rapidly across the western US

The effects of sewage on the distribution and abundance of benthic animals in a Puget Sound bay

Creator:: Shapeero, William L.
Abstract:: The effects of discharged sewage on physico-chemical conditions and the distribution and abundance of marine benthic animals were studied in Shilshole Bay, a part of Puget Sound, off Seattle, Washington. For over 50 years prior to 1965, when this study was initiated, 87,300 pounds (32,400 pounds BOD) per day of...
Resource Type:: Dissertation
Full Text:: of benthic animals in a Puget Sound bay AN ABSTRACT OF THE THESIS OF William L. Shapeero for the

Population and behavioral responses of small mammals to silviculture and downed wood treatments in the Oregon Coast Range

Creator:: Waldien, David L.
Abstract:: Forest managers are challenged to provide timber revenues and other resources for society while protecting and enhancing components of biodiversity that are often associated with older forests or older forest structure, such as dead wood. We examined small mammal response to timber harvest in stands 8-10 years following group-selection, two-story,...
Resource Type:: Dissertation
Full Text:: Abstract approved: AN ABSTRACT OF THE DISSERTATION OF David L

Life-history organization of cutthroat trout in Yellowstone Lake and its management implications

Creator:: Gresswell, Robert E.
Abstract:: Life-history organization of the cutthroat trout (Oncorhvnchus clarki) may be viewed at various levels, including species, subspecies, metapopulation, population, or individual. Each level varies in spatial scale and temporal persistence, and components at each level continually change with changes in environment. Cutthroat trout are widely distributed throughout the western USA,...
Resource Type:: Dissertation
Full Text:: : William J. Liss Abstract approved: Gary L. Larson Life-history organization of the cutthroat trout

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

Creator:: Kaylor, Matthew J.
Abstract:: Humans have drastically altered the physical habitat and food web structure of stream ecosystems. Two major impacts humans have had on Pacific Northwest streams are modification of streamside forests (as a result of agriculture, land development, and timber harvest), and declines in the return of wild anadromous salmon to headwater...
Resource Type:: Dissertation
Full Text:: /100 m2); Grad = gradient (%); NO3 = nitrate‐N concentration (μg/L); Temp = mean daily mean

It’s in Their Bones: Ecological Drivers of Kemp’s Ridley Sea Turtle (Lepidochelys kempii) Somatic Growth and Population Dynamics

Creator:: Ramirez, Matthew D.
Abstract:: Somatic growth variation manifests from the cumulative effects of a suite of biological, ecological, and environmental processes and can have profound effects on individual fitness and species population dynamics. As ectotherms whose growth dynamics are greatly influenced by environmental factors, sea turtles display considerable variation in somatic growth within and...
Resource Type:: Dissertation
Full Text:: using the Wilk’s l criterion. ....... 133 Table 5.1. Summary of input parameter used across all models

Effects of water withdrawals on macroinvertebrate emergence: Unexpected results for three holometabolous species

Creator:: Brown, P. D., Wooster, D., Johnson, S. L., and DeBano, S. J.
Abstract:: Small, low-head diversion dams are capable of withdrawing much of the flow of a river, often resulting in elevated water temperatures. Accelerated growth and development of aquatic invertebrates has been demonstrated in warmer temperatures, suggesting that the timing of insect emergence and adult body size may be significantly altered by...
Resource Type:: Article
Full Text:: THREE HOLOMETABOLOUS SPECIES P. D, BROWN,`* D. WOOSTER,b S. L. JOHNSON' and S. J. DEBANOb a Department

Site fidelity and colony dynamics of Caspian terns nesting at East Sand Island, Columbia River Estuary, Oregon, USA

Creator:: Collar, Stefanie
Abstract:: Fidelity to breeding sites in colonial birds is an adaptive trait thought to have evolved to enhance reproductive success by reducing search time for breeding habitat, allowing earlier nest initiation, facilitating mate retention, and reducing uncertainty of predator presence and food availability. Studying a seabird that has evolved relatively low...
Resource Type:: Masters Thesis
Full Text:: glaucous-winged/western gulls (Larus glaucescens x L. occidentalis) since 2001, and a significant

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:: Siinendinger, Susan McGregor, Nancy Herron, Bette Moyer, Richard Rahmun, John Wadeson, Peggy Noe, John

News & Views, 1999 Winter

Creator:: Edge, W. Daniel
Resource Type:: Other
Full Text:: Views Mail Bag - continued from page 5 In a note to John Adair, ‘50, from Otto Florschutz, ‘57, now

ScholarsArchive@OSU

Effects of oil and natural gas development on territory occupancy of ferruginous hawks and golden eagles in Wyoming, USA

The effects of sewage on the distribution and abundance of benthic animals in a Puget Sound bay

Population and behavioral responses of small mammals to silviculture and downed wood treatments in the Oregon Coast Range

Life-history organization of cutthroat trout in Yellowstone Lake and its management implications

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

It’s in Their Bones: Ecological Drivers of Kemp’s Ridley Sea Turtle (Lepidochelys kempii) Somatic Growth and Population Dynamics

Effects of water withdrawals on macroinvertebrate emergence: Unexpected results for three holometabolous species

Site fidelity and colony dynamics of Caspian terns nesting at East Sand Island, Columbia River Estuary, Oregon, USA

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

News & Views, 1999 Winter

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