Index Catalog // ScholarsArchive@OSU

Seed-coat anatomy and proanthocyanidins contribute to the dormancy of Rubus seed

Creator:: Wada, Sugae, Kennedy, James A., and Reed, Barbara M.
Abstract:: Rubus seed has a deep double dormancy that restricts germination due to seed coat structure and chemical composition. Improved germination of diverse Rubus species required for breeding improved blackberry and raspberry cultivars is partly dependent on the seed coat structure. This study evaluated the seed coat structure of three species...
Resource Type:: Article
Full Text:: contribute to the dormancy of Rubus seed S s S a b c a A R R A K G P R S S T 1 v s I d s c m C c d

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Creator:: Kennedy, Patricia L., Bartuszevige, Anne M., Houle, Marcy, Humphrey, Ann B., Dugger, Katie M., and Williams, John
Abstract:: Potential for large prairie remnants to provide habitat for grassland-obligate wildlife may be compromised by nonsustainable range-management practices. In 1979–1980, high nesting densities of 3 species of hawks in the genus Buteo—Ferruginous Hawk (Buteo regalis), Red-tailed Hawk (B. jamaicensis), and Swainson’s Hawk (B. swainsoni)—were documented on the Zumwalt Prairie and...
Resource Type:: Article
Full Text:: , USA Kennedy, P. L., Bartuszevige, A. M., Houle, M., Humphrey, A. B., Dugger, K. M., & Williams, J

Impact of diurnal temperature variation on grape berry development, proanthocyanidin accumulation, and the expression of flavonoid pathway genes

Creator:: Cohen, Seth D., Tarara, Julie M., Gambetta, Greg A., Matthews, Mark A., and Kennedy, James A.
Abstract:: Little is known about the impact of temperature on proanthocyanidin (PA) accumulation in grape skins, despite its significance in berry composition and wine quality. Field-grown grapes (cv. Merlot) were cooled during the day or heated at night by +/–8 C, from fruit set to veraison in three seasons, to determine...
Resource Type:: Article
Full Text:: and Food Chemistry 55, 6575–6584. Cortell JM, Halbleib M, Gallagher AV, Righetti TL, Kennedy JA

Synthesis of knowledge on the effects of fire and thinning treatments on understory vegetation in U.S. dry forests

Creator:: Oregon State University. Agricultural Experiment Station, Bartuszevige, Anne M., and Kennedy, Patricia L.
Abstract:: "... One goal of this document is to synthesize the literature on the effects of mechanical thinning on understory plant species. A second goal is to document the effect of prescribed burning on rare, threatened, or endangered species. We review current literature on studies that address effects of prescribed fire...
Resource Type:: Technical Report
Full Text:: in U.S. Dry Forests Anne M. Bartuszevige and Patricia L. Kennedy Special Report 1095 Synthesis of

Re-Occupancy of Breeding Territories by Ferruginous Hawks in Wyoming: Relationships to Environmental and Anthropogenic Factors

Creator:: Wallace, Zachary P., Kennedy, Patricia L., Squires, John R., Oakleaf, Robert J., Olson, Lucretia E., and Dugger, Katie M.
Abstract:: Grassland and shrubland birds are declining globally due in part to anthropogenic habitat modification. Because population performance of these species is also influenced by non-anthropogenic factors, it is important to incorporate all relevant ecological drivers into demographic models. We used design-based sampling and occupancy models to test relationships of environmental...
Resource Type:: Article

Mapping change of older forest with nearest-neighbor imputation and Landsat time-series

Creator:: Ohmann, Janet L., Gregory, Matthew J., Roberts, Heather M., Cohen, Warren B., Kennedy, Robert E., and Yang, Zhiqiang
Abstract:: The Northwest Forest Plan (NWFP), which aims to conserve late-successional and old-growth forests (older forests) and associated species, established new policies on federal lands in the Pacific Northwest USA. As part of monitoring for the NWFP, we tested nearest-neighbor imputation for mapping change in older forest, defined by threshold values...
Resource Type:: Article
Full Text:: and Landsat time-series Janet L. Ohmann a,⇑, Matthew J. Gregory b, Heather M. Roberts b, Warren B

Shade estimation over streams using distributed temperature sensing

Creator:: Petrides, A. C., Huff, J., Arik, A., van de Giesen, N., Kennedy, A. M., Thomas, C. K., and Selker, J. S.
Abstract:: The characterization of temporal and spatial distribution of sunlight is essential for understanding energy transport in natural ecosystems. Fiber-optic distributed temperature sensing (DTS) allows meter resolution measurements of temperature at subminute resolution. The difference in temperature due to absorption and reflection of a pair of helically twisted black and white...
Resource Type:: Article
Full Text:: . Huff,1 A. Arik,1 N. van de Giesen,2 A. M. Kennedy,3 C. K. Thomas,3 and J. S. Selker1 Received 26

Biomass production from the US forest and agriculture sectors in support of a renewable electricity standard

Creator:: White, Eric M., Latta, Greg, Alig, Ralph J., Skog, Kenneth E., and Adams, Darius M.
Abstract:: Production of renewable energy from biomass has been promoted as means to improve greenhouse gas balance in energy production, improve energy security, and provide jobs and income. However, uncertainties remain as to how the agriculture and forest sectors might jointly respond to increased demand for bioelectricity feedstocks and the potential...
Resource Type:: Article
Full Text:: , Kenneth E. Skog c, Darius M. Adams a a Department of Forest Engineering, Resources and Management, 280

High-resolution fibre-optic temperature sensing: A new tool to study the two-dimensional structure of atmospheric surface-layer flow

Creator:: Thomas, Christoph K., Kennedy, Adam M., Selker, John S., Moretti, Ayla, Schroth, Martin H., Smoot, Alexander R., Tufillaro, Nicholas B., and Zeeman, Matthias J.
Abstract:: We present a novel approach based on fibre-optic distributed temperature sensing (DTS) to measure the two-dimensional thermal structure of the surface layer at high resolution (0.25 m, ≈ 0.5 Hz). Air temperature observations obtained from a vertically oriented fibre optics array of approximate dimensions 8 m x 8 m and...
Resource Type:: Article
Full Text:: M. Kennedy·4 John S. Selker· Ayla Moretti · Martin H.5 Schroth · Alexander R. Smoot· Nicholas B.6

Spatial and temporal residential density patterns from 1940 to 2000 in and around the Northern Forest of the Northeastern United States

Creator:: Mockrin, Miranda H., Stewart, Susan I., Radeloff, Volker C., Hammer, Roger B., and Johnson, Kenneth M.
Abstract:: Over the past 60 years, housing growth has outpaced population growth in the United States. Conservationists are concerned about the far-reaching environmental impacts of housing development, particularly in rural areas. We use clustering analysis to examine the pattern and distribution of housing development since 1940 in and around the Northern...
Resource Type:: Article
Full Text:: Miranda H. Mockrin • Susan I. Stewart • Volker C. Radeloff • Roger B. Hammer • Kenneth M. Johnson

ScholarsArchive@OSU

Seed-coat anatomy and proanthocyanidins contribute to the dormancy of Rubus seed

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Impact of diurnal temperature variation on grape berry development, proanthocyanidin accumulation, and the expression of flavonoid pathway genes

Synthesis of knowledge on the effects of fire and thinning treatments on understory vegetation in U.S. dry forests

Re-Occupancy of Breeding Territories by Ferruginous Hawks in Wyoming: Relationships to Environmental and Anthropogenic Factors

Mapping change of older forest with nearest-neighbor imputation and Landsat time-series

Shade estimation over streams using distributed temperature sensing

Biomass production from the US forest and agriculture sectors in support of a renewable electricity standard

High-resolution fibre-optic temperature sensing: A new tool to study the two-dimensional structure of atmospheric surface-layer flow

Spatial and temporal residential density patterns from 1940 to 2000 in and around the Northern Forest of the Northeastern United States

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