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The effects of forest management intensity on carbon storage and revenue in Western Washington: A model and Monte Carlo-based case study of tradeoffs at Pack Forest
(2013-07-23)
Forest C offsets allow payments to forest owners who improve carbon (C) uptake and storage. I quantified the amount and value of C under different intensities of management practices at Pack Forest in the western Cascade Mountains, Washington using forest inventory data and results from the Forest Vegetation Simulator (FVS) ...
Land-Use Changes in Southwestern Guatemala: Assessment of their Effects and Sustainability
(2013-07-23)
Land-use changes in the Pacific coastal plain of southwest Guatemala have accelerated in the past twenty years as native arable and pasture lands have been converted at an increasing rate to oil palm and banana plantations. This study of the changes during this period has been made by remote-sensing analyses calibrated to ...
Experimental Investigations into the Ecological Functions of Cryptogams in Alpine Plant Communities
(2013-07-23)
Vegetation scientists and alpinists alike have long noted the impressive collection of cryptogams in alpine plant communities, yet few have endeavored to uncover what ecological roles they may have. I attempted to address the question of whether and how cryptogams affect the higher plants with which they cohabitate, using ...
Stress Physiology of Phytophthora-canker Pathogens in Landscape Trees: impacts, mechanisms, and mitigation through biochar amendment
(2013-07-23)
Soil-amendment with biochar is thought to confer multiple benefits to plants including induction of systemic resistance to plant pathogens. Pathogens in the genus Phytophthora cause damaging diseases of woody species throughout the world. The objectives of the experiments described in the following chapters were to determine ...
Eastern Gray Squirrel Ecology and Interactions with Western Gray Squirrels
(2013-07-23)
Populations of State-threatened western gray squirrels (<italic>Sciurus griseus</italic>) have declined in areas invaded by introduced eastern gray squirrels (<italic>S. carolinensis</italic>) in the Western United States, but little is known about competitive interactions between these species. The western gray squirrel is ...
An Examination of Stand Attributes and the Presence of English holly in a Pacific Northwest Forest, Grays Harbor County, Wash.
(2013-07-23)
English holly (<italic>Ilex aquifolium</italic>) is an ornamental favored by people who appreciate its wildlife benefits and traditional significance. Since its introduction into the Pacific Northwest over one hundred years ago, (<italic>Ilex(</italic> has escaped from cultivation and is increasingly found in natural areas ...
Business Strategies of North American Sawmills: Flexibility, Exports and Performance
(2013-07-23)
Lumber production in North America has declined sharply after the housing crisis in the U.S. The weak demand for lumber in the U.S. has been offset by strong international demand, however, some sawmills hesitate to export their products internationally, while others actively pursue opportunities overseas. This dissertation ...
Using non-invasive techniques to examine black bear (Ursus americanus) abundance in the North Cascades Ecosystem, Washington State
(2013-07-25)
Recent advances in non-invasive research methods have facilitated less costly evaluations of bear populations across wide geographic ranges. Non-invasive hair-snagging and genetic tagging allow identification of species, sex, and individual bears without necessitating direct capture or observation. From 2008 to 2011 a large, ...
Ecology and Conservation of the Western Gray Squirrel (Sciurus griseus) in the North Cascades
(2012-09-13)
University of Washington Abstract Ecology and Conservation of the Western Gray Squirrel in the North Cascades Kathryn Diane Stuart Chair of the Supervisory Committee: Associate Director and Professor Stephen D. West School of Environmental and Forest Sciences The western gray squirrel (Sciurus griseus) was classified as a ...
Wildfire and fuel treatment effects on carbon storage, eastside Cascade Range, Washington, USA
(2012-09-13)
Sequestration of carbon in forests has the potential to mitigate effects of global climate change by offsetting future emissions and greenhouse gas concentrations in the atmosphere. In dry temperate forests, however, wildfire is a natural disturbance agent with the potential to release large fluxes of carbon into the atmosphere. ...