Index Catalog // ScholarsArchive@OSU

The Ibis, journal of the British Ornithologists' Union : a pre-synthesis portrait

Creator:: Johnson, Kristin Renee
Abstract:: In 1959 the British Ornithological journal, The Ibis, published a centenary commemorative volume on the history of ornithology in Britain. Over the previous few decades, the contributors to this volume had helped focus the attention of ornithologists on the methods, priorities, and problems of modem biology, specifically the theory ofevolution...
Resource Type:: Masters Thesis
Full Text:: The Ibis, Journal of the British Ornithologists' Union: A Pre

Water quality impacts of free ranging cattle in semi-arid environments

Creator:: Larsen, Royce E.
Abstract:: The purpose of this study was to evaluate the effects that free ranging cattle have on water quality in semi-arid environments. There were three specific objectives: 1) To determine the concentration and distribution of cattle feces in meadows, riparian zones, and the associated uplands. 2) To determine the fecal deposition...
Resource Type:: Masters Thesis
Full Text:: Impacts of Free Ranging Cattle in Semi-arid Environments. by Royce E. Larsen A THESIS submitted to

Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Creator:: Kowsar, Ahang
Resource Type:: Dissertation
Full Text:: dissertation is a phase of afforestation research in arid and semi-arid environments. It is conducted by the

Germination and seedling establishment of spiny hopsage (Grayia spinosa [Hook.] Moq.)

Creator:: Shaw, Nancy L. (Nancy Lynn), 1947-
Resource Type:: Dissertation
Full Text:: SEEDLING ESTABLISHMENT OF SPINY HOPSAGE IN RESPONSE TO PLANTING DATE AND SEEDBED ENVIRONMENT. 77 Abstract

Carbon and energy exchange of semi-arid ecosystems with heterogeneous canopy structure

Creator:: Anthoni, Peter M.
Abstract:: Carbon and energy fluxes were measured with the eddy covariance technique above two semi-arid ecosystems, ponderosa pine and juniper/sagebrush, located in central Oregon. The two ecosystems have low LAI and a very open canopy structure. The energy closure was ~70-80% at both ecosystems, equivalent to an imbalance of 150-250 W...
Resource Type:: Dissertation
Full Text:: Exchange of Semi-arid Ecosystems with Heterogeneous Canopy Structure Abstract approved: Carbon and

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Creator:: Kizito, Fred
Abstract:: Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera senegalensis), both of which may be important hydraulic regulators in these water-limited ecosystems....
Resource Type:: Dissertation
Full Text:: use patterns under Guiera senegalensis L. shrubs in a tropical savanna. Journal of Arid Environments

Oregon outdoor garments : outdoor garments worn in the Willamette Valley and Eastern Oregon regions between 1880 to 1920

Creator:: Mower, Jennifer M.
Abstract:: The purpose of this study was to describe women's outdoor garments worn in Oregon from 1880 to 1920 to determine whether there were garment differences between the Willamette Valley and Eastern Oregon. The question addressed was: can garment differences be explained by the different Oregon climates, geographic locations, and availability...
Resource Type:: Masters Thesis
Full Text:: of Master of Arts in Design and Human Environment presented on May 1, 2006. Title: Oregon Outdoor

Patch dynamics of desert fishes in the arid wetlands of western Utah

Creator:: Sáenz, Jessica
Abstract:: The conservation of declining desert fish species requires the identification of relations between fish population dynamics and their environments. Dynamic occupancy modeling, an approach that requires less information than traditional mark-recapture studies, may help identify important factors affecting population processes and aid desert fish conservation and restoration efforts. I used...
Resource Type:: Masters Thesis
Full Text:: patchy environments (Wiegand et al. 2003). The scarcity of water in arid regions creates patches of

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Creator:: Mangla, Seema
Abstract:: Successful ecosystem restoration requires an understanding of the ecological processes directing succession. One of the challenges in the semi-arid grasslands of western United States is replacement of native species by invasive annual grasses. Solutions to this problem require identifying and manipulating ecological processes that direct succession to favor desired vegetation....
Resource Type:: Dissertation
Full Text:: , 211–217. Simberloff, D., 2005. Non-native species do threaten the natural environment. Journal of

Activity, composition and structure of soil microbial communities in Savannahshrubs of agroecosystems in semi-arid Senegal

Creator:: Diedhiou, Sire
Abstract:: Piliostigma reticulatum and Guiera senegalensis are two native shrubs that coexist with row crops in parkland systems of the Sahel of Africa. Although permanently green all year around in soil depleted in nutrients and dry for a nine-month period, these shrubs have been largely overlooked. Conventional management of these shrubs...
Resource Type:: Dissertation
Full Text:: plant roots, and typically it is characteristic of semi-arid to arid environments (Richards and

ScholarsArchive@OSU

The Ibis, journal of the British Ornithologists' Union : a pre-synthesis portrait

Water quality impacts of free ranging cattle in semi-arid environments

Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Germination and seedling establishment of spiny hopsage (Grayia spinosa [Hook.] Moq.)

Carbon and energy exchange of semi-arid ecosystems with heterogeneous canopy structure

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Oregon outdoor garments : outdoor garments worn in the Willamette Valley and Eastern Oregon regions between 1880 to 1920

Patch dynamics of desert fishes in the arid wetlands of western Utah

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Activity, composition and structure of soil microbial communities in Savannahshrubs of agroecosystems in semi-arid Senegal

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