Index Catalog // ScholarsArchive@OSU

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

Creator:: Neill, Andrew R.
Abstract:: A trait based approach was used to assess impacts of overstory density and thinning on understory vegetation components related to wildlife habitat. The relationship between overstory basal area and understory vegetation for species grouped by traits, such as production of flowers, fleshy-fruit and palatable leaves, was characterized in thinned and...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Klaus J. Puettmann A trait based approach was used to assess impacts of overstory density

A case study on the utility of multiple, light to moderate intensity silvicultural treatments to accomplish forest management objectives in southwest Oregon, USA

Creator:: Schmidt, Micah
Abstract:: Small, private forestland owners own about 12% of Oregon’s forestland and have the unique ability to implement innovative forest management activities. In southwest Oregon, extreme ecological variability occurs over small spatial scales and requires fine-scale silvicultural treatments that match the precise ecological setting and management objectives of the forests in...
Resource Type:: Capstone Project
Full Text:: (Puettmann et al., 2009). However, the increasing value placed on ecological and social aspects of forestry

Vegetation dynamics at two western New York forests

Creator:: Rhea, Neally
Abstract:: Since the early 1900s, widespread agricultural abandonment has occurred in western New York leading to a general increase in forested areas through old-field succession. Even-aged stands typically follow these large-scale disturbances, resulting in a pattern of development with identifiable stages (Oliver 1980). At each stage, changes in vegetation dynamics encourage...
Resource Type:: Capstone Project

Competitive interactions in young, coastal Douglas-fir/red alder mixtures : implications for wood quality

Creator:: Grotta, Amy T.
Abstract:: When Douglas-fir and red alder grow in mixture, interactions between the two species can be competitive, facilitative, or a combination of both over time. A number of factors have recently led to increased interest in managing these two species together for commercial production, and ongoing investigations are yielding important information...
Resource Type:: Masters Thesis

Interference dynamics in mixed red alder/Douglas-fir forests

Creator:: D'Amato, Anthony W.
Abstract:: This study characterized the nature and dynamics of interference in mixed red alder (Alnus rubra Bong.)/Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) stands in the Pacific Northwest, USA. Long-term spatial and tree measurements from the Cascade Head (CH) and H.J. Andrews (HJA) Experimental Forests in western Oregon and Delezene Creek (DC), Washington...
Resource Type:: Masters Thesis
Full Text:: . Klaus J. Puettmann This study characterized the nature and dynamics of interference in mixed red alder

Vegetation response following thinning in young Douglas-fir forests of western Oregon : can thinning accelerate development of late-successional structure and composition?

Creator:: Beggs, Liane R.
Abstract:: Across western Oregon, Washington, and British Columbia, forest management practices over the past century reduced the amount of late-successional forest while simultaneously increasing the amount of young (less than 80 years old), managed Douglas-fir (Pseudotsuga menziesii) dominated forests. Recently, concerns over loss of late-successional habitat pushed management objectives on public...
Resource Type:: Masters Thesis
Full Text:: Late-Successional Structure and Composition? Abstract approved: Klaus J. Puettmann Across

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Creator:: Fahey, Robert T.
Abstract:: Canopy gap formation is a major factor contributing to maintenance of overstory species diversity and stand structure in forests and may be integral to development of understory shrub and herb layers as well. Acknowledgement of gap formation as a fundamental feature of natural forests has led to consideration of gaps...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Klaus J. Puettmann Canopy gap formation is a major factor contributing to maintenance of

Managing Douglas-fir Mortality: Case Studies from Western Oregon

Creator:: Campbell, Lewis
Abstract:: An increase in frequency and severity of hot, dry summers has been associated with a dramatic shift in the coniferous forests of western Oregon’s valleys, especially on the privately-owned properties along the low-elevation edges of these valleys. Various conifer species, including Douglas-fir (Pseudotsuga menziesii), are declining in these forests, leaving...
Resource Type:: Capstone Project
Full Text:: : ______________________________________________________ Klaus J. Puettmann An increase in frequency and severity of hot, dry summers has been

Bird-vegetation relationships across ten years after thinning in young thinned and unthinned Douglas-fir forests

Creator:: Yegorova, Svetlana
Abstract:: Bird-vegetation associations are a base for bird conservation and management, as well as for predictions of the effects of resource management and climate change on wildlife populations. A recent shift in forest management priorities from timber production to native species' habitat conservation on federal lands has emphasized the need to...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Klaus J. Puettmann Matthew G. Betts Bird-vegetation associations are a base for bird

Scaling the Issue of Changing Disturbance Regimes: Implications of Novel Landscape Conditions for Black Stain Root Disease

Creator:: Bouché, Adam J.
Abstract:: Changes to disturbance regimes resulting from shifts in forest management practices have created novel landscape conditions in the Pacific Northwest (PNW). I analyzed the implications of changes to landscape conditions caused by forest management for the spread of a native root disease: black stain root disease (BSRD) of Douglas-fir. BSRD...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________ Klaus J. Puettmann David C. Shaw Changes to disturbance regimes

ScholarsArchive@OSU

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

A case study on the utility of multiple, light to moderate intensity silvicultural treatments to accomplish forest management objectives in southwest Oregon, USA

Vegetation dynamics at two western New York forests

Competitive interactions in young, coastal Douglas-fir/red alder mixtures : implications for wood quality

Interference dynamics in mixed red alder/Douglas-fir forests

Vegetation response following thinning in young Douglas-fir forests of western Oregon : can thinning accelerate development of late-successional structure and composition?

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Managing Douglas-fir Mortality: Case Studies from Western Oregon

Bird-vegetation relationships across ten years after thinning in young thinned and unthinned Douglas-fir forests

Scaling the Issue of Changing Disturbance Regimes: Implications of Novel Landscape Conditions for Black Stain Root Disease

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