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

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

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

The Effect of Canopy Cover and Wildfire Smoke on Near-Surface Temperatures

Creator:: Brackett, Amanda
Abstract:: Recent shifts from clearcutting to partial retention harvesting on many ownerships and the importance of microclimate dynamics on biotic responses to regional climate highlight the need to understand how microclimate conditions in forest understories differ across gradients of partial overstories. This study compares below-canopy near-surface temperatures at 2cm above ground...
Resource Type:: Masters Thesis
Full Text:: approved: ___________________________________________________ Klaus J. Puettmann & Christopher J. Still

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

Management Strategies for Small, Structurally Diverse & Income-Generating Forests

Creator:: Geisel, Julian
Abstract:: Parcellization of the rural landscape threatens the provision of social, ecological and economic benefits to society due to loss of economies of scale. A continued provision requires new approaches to forest management for multiple, interconnected goals. I used interviews, archival records and field measurements to learn how select, experienced owners...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Eric N. Hansen, Klaus J

Elucidating Key Aspects of the Biology of Select Species of Snail-killing Flies (Diptera: Sciomyzidae) in Oregon

Creator:: Alzahrani, Fares
Abstract:: Members of the family Sciomyzidae, known as snail-killing or marsh flies, are unique amongst insects in that the vast majority of reared species feed exclusively on mollusks and as a result their biological control potential has been well documented in the scientific literature. However, in North America there is a...
Resource Type:: Masters Thesis
Full Text:: members, Dr. Andrew Hulting, Dr. Gail Langellotto, and Dr. Klaus Puettmann for their encouragement

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

ScholarsArchive@OSU

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

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

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

The Effect of Canopy Cover and Wildfire Smoke on Near-Surface Temperatures

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

Management Strategies for Small, Structurally Diverse & Income-Generating Forests

Elucidating Key Aspects of the Biology of Select Species of Snail-killing Flies (Diptera: Sciomyzidae) in Oregon

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

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