Index Catalog // ScholarsArchive@OSU

Seasonal influences on food availability and diet of coastal cutthroat trout in relation to riparian vegetation

Creator:: Romero, Nicolas
Abstract:: Current riparian management objectives in the Pacific Northwest promote both retention of existing conifers and conversion of hardwood-dominated areas to conifers. Although understanding of relationships between riparian vegetation and salmonid prey availability is growing, temporal variation in these relationships is poorly understood. Seasonal fluxes in availability of aquatic and terrestrial...
Resource Type:: Masters Thesis
Full Text:: Judith L. Li Current riparian management objectives in the Pacific Northwest promote both retention of

Harlequin duck demography during winter in Prince William Sound, Alaska : effects of the Exxon Valdez oil spill

Creator:: Esler, Daniel
Abstract:: The 1989 Exxon Valdez oil spill was a major perturbation of nearshore habitats of Prince William Sound, a wintering area for harlequin ducks (Histrionicus histrionicus). This research was designed to evaluate harlequin duck population recovery from the oil spill from 1995 to 1998, using a demographic approach to assess both...
Resource Type:: Dissertation
Full Text:: Daniel Esler, Daniel M. Mulcahy, and Robert L. Jarvis Published in 2000, Journal of Wildlife Management

Effects of forest roads on surface and subsurface flow in southeast Alaska

Creator:: McGee, Katherine E.
Abstract:: Well water levels and ditch flow were used to evaluate road-induced changes in surface and subsurface flow for two sites (Trocadero and Polk) in southeast Alaska. At the Trocadero Site, low water levels before and peak water levels during a storm were used to test for differences in subsurface water...
Resource Type:: Masters Thesis

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Creator:: Benner, David A.
Abstract:: Evaporation was studied along the Middle Fork of the John Day River in northeastern Oregon. Evaporation pans and various meteorological sensors recorded data at nine sites during the summer of 1998; measurements were made at each site over a 3-4 day period. A Dalton-type evaporation model was produced using water...
Resource Type:: Masters Thesis

Ecology of female northern pintails during winter in the San Joaquin Valley, California

Creator:: Fleskes, Joseph P.
Abstract:: I radio-tagged 191 Hatch-Year (HY) and After-Hatch-Year (AHY) female northern pintails (Anas acuta) in the San Joaquin Valley (SJV), California and studied their movements, habitat use and survival during August March, 1991-94. Overall, 94.3% wintered in central California; the highest percentage left during the 1991 drought. Tulare Basin and Mendota...
Resource Type:: Dissertation
Full Text:: individuals and organizations contributed to the success of this study. Robert L. Jarvis, my major professor

Habitat availability, dietary mineral supplement, and measuring abundance of band-tailed pigeons in western Oregon

Creator:: Sanders, Todd Alan
Abstract:: My objectives were to: 1) develop a point count technique for estimating relative abundance of band-tailed pigeons (Columbafasciata monilis), 2) determine the availability, distribution, and interspersion of mineral sites, and nesting and foraging cover in relation to abundance of band-tailed pigeons in west-central Oregon, and 3) test the hypothesis that...
Resource Type:: Dissertation

Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

Creator:: Pierce, Stephen D.
Abstract:: We sharpen our view of an eastern boundary current region during the upwelling season through the analysis of several data sets. We focus on the mesoscale flow field off of northern California, observed during the Coastal Transition Zone (CTZ) experiment of 1988. First, we estimate tidal currents in the region...
Resource Type:: Dissertation
Full Text:: : Robert L. Smith We sharpen our view of an eastern boundary current region during the upwelling season

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

Creator:: Hopson, Richard G.
Abstract:: Subsurface inputs into lotic systems are a primary mechanism for cooling streams with high ambient water temperatures. Objectives of this study include: 1) to determine the effectiveness of Forward Looking Infrared (FLIR) thermal imagery to detect shallow aquifers, 2) to characterize certain physical, spatial, and temporal characteristics of the fluvial,...
Resource Type:: Masters Thesis

The effect of the size and orientation of large wood on pool volume in two Oregon Coast Range streams

Creator:: Lombard, Pamela
Abstract:: This study was conducted to determine how the size and orientation of large wood placed in streams in combination with peak flows, substrate and channel gradient affect pool volume, surface area and maximum depth in two coastal Oregon streams. Eighteen Douglas-fir (Pseudotsuga menziesii) logs were placed in each of two...
Resource Type:: Masters Thesis

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

Creator:: Mehall-Niswander, Angela C.
Abstract:: Diurnal time budgets and habitat use patterns of breeding Ugashik marbled godwits (Limosa fedoa beringiae) were studied on the north-central portion of the Alaska Peninsula during spring and summer 1995-1996. Marbled godwits were observed from blinds and behaviors were described for the four phases of the breeding season: pair-formation, egg-laying,...
Resource Type:: Masters Thesis
Full Text:: approved: Robert arvis Diurnal time budgets and habitat use patterns of breeding Ugashik marbled godwits

ScholarsArchive@OSU

Seasonal influences on food availability and diet of coastal cutthroat trout in relation to riparian vegetation

Harlequin duck demography during winter in Prince William Sound, Alaska : effects of the Exxon Valdez oil spill

Effects of forest roads on surface and subsurface flow in southeast Alaska

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Ecology of female northern pintails during winter in the San Joaquin Valley, California

Habitat availability, dietary mineral supplement, and measuring abundance of band-tailed pigeons in western Oregon

Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

The effect of the size and orientation of large wood on pool volume in two Oregon Coast Range streams

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

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