Index Catalog // ScholarsArchive@OSU

Trickle-down ecohydrology : complexity of rainfall interception and net precipitation under forest canopies

Creator:: Allen, Scott T.
Abstract:: Rainfall interception is a primary control over the moisture input to a forested ecosystem through the partitioning of precipitation into throughfall, stemflow, and an evaporated component (i.e. the interception loss). Rainfall interception is a spatially and temporally varying process at multiple scales, but heterogeneity in interception processes are poorly understood...
Resource Type:: Masters Thesis
Full Text:: variability of throughfall depth and isotopic composition under a Douglas-fir canopy in the Cascade Range of

Crown structure, stand dynamics, and production ecology of two species mixtures in the central Oregon Cascades

Creator:: Garber, Sean M.
Abstract:: Knowledge of stand structure, stand dynamics, and production ecology of species mixtures lags well behind that of single-species, even-aged stands. Two mixed-species spacing trials in central Oregon allowed investigation of mixed-species dynamics in a controlled experimental setting. The first site, Pringle Butte, is a mixture of ponderosa pine (Pinus ponderosa...
Resource Type:: Masters Thesis
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 LIST OF TABLES Table Page 3.1. Results of Bonferoni multiple range tests among the levels

The Role of Intraspecific Functional Trait Variation in the Differential Decline of Meadow Species Following Conifer Encroachment

Creator:: Celis, Jessica
Abstract:: In the Oregon Cascade Range, conifer encroachment has reduced the extent of mountain meadows by as much as 50% since the mid-1940s. Although encroachment results in a general decline of meadow species abundance and diversity, species differ in their sensitivities to encroachment: some show rapid declines whereas others persist in...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ F. Andrew Jones In the Oregon Cascade Range, conifer encroachment has reduced the extent

Influence of spatial and temporal factors on plants, pollinators and plant-pollinator interactions in montane meadows of the western Cascades Range

Creator:: Pfeiffer, Vera W.
Abstract:: Montane meadows comprise less than 5% of the landscape of the western Cascades of Oregon, but they provide habitat for diverse species of plants and pollinators. Little is known about plant-pollinator network structure at these sites. This study quantified plant-pollinator interactions over the summer of 2011, based on six observations...
Resource Type:: Masters Thesis
Full Text:: , Pollinators and Plant- pollinator Interactions in Montane Meadows of the Western Cascades Range CHAPTER

The influence of light intensity on the phytochemistry of Chrysolepis chrysophylla (Fagaceae) and the relationship to the herbivory of Habrodais grunus herri (Lycaenidae)

Creator:: Bowden, Richard I.
Abstract:: Defensive chemical and nutritive quality of young leaves were measured for 72 individual trees of Chrysolepis [Castanopsis] chrysophylla in conjunction with light intensities of two different stand types and population numbers of Habrodais grunus herri in the Cascade mountains of Oregon. Leaves were collected in the spring and leaf characteristics...
Resource Type:: Masters Thesis
Full Text:: throughout the Cascade mountains and Coast Range of Oregon (Dornfeld, 1980; Hinchliff, 1996). The adult is

Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Creator:: Gallo, Adrian Carlos
Abstract:: Forest soils contain a substantial portion of global terrestrial carbon stores. Forest management can influence the soil carbon pool and how soil organic matter functions. The long-term productivity of forests is an ongoing goal where land managers utilize biomass and timber. A site-specific understanding of intensively managed forests can ensure...
Resource Type:: Masters Thesis
Full Text:: Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Spatial analysis of Phellinus weirii infection centers in the central Cascades of Oregon : inferring ecological processes from patterns

Creator:: Lattin, Peter D.
Abstract:: This study was conducted to investigate why root disease centers east of the Cascade crest tend to be larger in diameter and more abundant than their counterparts to the west, within subalpine forest stands of central Oregon. The trend in a 290 km² study area appeared opposite of what was...
Resource Type:: Masters Thesis

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Creator:: Clark, Deborah Louise, 1950-
Resource Type:: Masters Thesis
Full Text:: THESIS OF Deborah Clark for the degree of Master of Science in Botany and Plant Pathology presented on

Similarities in understory vegetation composition between unthinned, thinned and old-growth Douglas fir stands in western Oregon

Creator:: Mayrsohn, Cheryl
Abstract:: Forest stands were studied to determine if old-growth forest structure could be mimicked in younger stands via overstory manipulation. Cover and species composition of understory plants were systematically sampled in sixteen thinned second-growth stands and sixteen adjacent unthinned second-growth Douglas fir (Pseudotsuga menziesii (Mirabel) Franco.) stands. The stands were thinned...
Resource Type:: Masters Thesis
Full Text:: Location of the study sites in the Coast Range and Cascade Mountains of Oregon 9 2 Layout of plot 14 3

Effects of wildfire burn severity on soil microbial communitiesand invasive plant species in the Cascade Range of Oregon

Creator:: Hebel, Cassie L.
Abstract:: Fire suppression in the last several decades has resulted in unprecedented accumulations of organic matter on the landscape, leading to an increase in large, intense wildfires. This study investigated the soil microbial community (using phospholipid fatty acid analysis) across recently burned forests on the eastern slope of the Cascade Range...
Resource Type:: Masters Thesis
Full Text:: Invasive Plant Species in the Cascade Range of Oregon. by Cassie Lenae Hebel A THESIS

ScholarsArchive@OSU

Trickle-down ecohydrology : complexity of rainfall interception and net precipitation under forest canopies

Crown structure, stand dynamics, and production ecology of two species mixtures in the central Oregon Cascades

The Role of Intraspecific Functional Trait Variation in the Differential Decline of Meadow Species Following Conifer Encroachment

Influence of spatial and temporal factors on plants, pollinators and plant-pollinator interactions in montane meadows of the western Cascades Range

The influence of light intensity on the phytochemistry of Chrysolepis chrysophylla (Fagaceae) and the relationship to the herbivory of Habrodais grunus herri (Lycaenidae)

Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Spatial analysis of Phellinus weirii infection centers in the central Cascades of Oregon : inferring ecological processes from patterns

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Similarities in understory vegetation composition between unthinned, thinned and old-growth Douglas fir stands in western Oregon

Effects of wildfire burn severity on soil microbial communitiesand invasive plant species in the Cascade Range of Oregon

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