Index Catalog // ScholarsArchive@OSU

Effects of spatial scale and heterogeneity on avian occupancy dynamics and population trends in forested mountain landscapes

Creator:: Frey, Sarah J. K.
Abstract:: Population trends and patterns in species distributions are the major currencies used to examine responses by biodiversity to changing environments. Effective conservation recommendations require that models of both distribution dynamics and population trends accurately reflect reality. However, identification of the appropriate temporal and spatial scales of animal response, and then...
Resource Type:: Dissertation

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:: ABSTRACT OF THE THESIS OF Andrew R. Neill for the degree of Master of Science in Forest Science

Historical forest succession and disturbance dynamics in Coastal Douglas-fir forests in the southern western Cascades of Oregon

Creator:: Merschel, Andrew G.
Abstract:: Coastal Douglas-fir (Pseudotsuga menziesii var menziesii) forests are extensive west of the crest of the Cascade Mountains in Oregon and Washington and are renowned for their productivity, biodiversity, and the ecosystem services they provide. Increasing wildfire activity in recent years including the extensive 2020 Labor Day fires, and a warming...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Andrew G

Management trade-off between aboveground carbon storage and understory plant species richness in temperate forests

Creator:: Burton, Julia I., Ares, Adrian, Olson, Deanna H., and Puettmann, Klaus J.
Abstract:: Because forest ecosystems have the capacity to store large quantities of carbon (C), there is interest in managing forests to mitigate elevated CO[subscript 2] concentrations and associated effects on the global climate. However, some mitigation techniques may contrast with management strategies for other goals, such as maintaining and restoring biodiversity....
Resource Type:: Article
Full Text:: ARES,1,2 DEANNA H. OLSON,1,3 AND KLAUS J. PUETTMANN1 1Department of Forest Ecosystems and Society

The use of remote sensing for characterizing forests in wildlife habitat modeling

Creator:: Vogeler, Jody C.
Abstract:: Spatially explicit maps of habitat relationships have proven to be valuable tools for conservation and management applications including evaluating how and which species may be impacted by large scale climate change, ongoing fragmentation of habitat, and local land-use practices. Studies have turned to remote sensing datasets as a way to...
Resource Type:: Dissertation

Patterns of tree establishment and vegetation composition in relation to climate and topography of a subalpine meadow landscape, Jefferson Park, Oregon, USA

Creator:: Zald, Harold S. J.
Abstract:: The forest alpine tundra ecotone (FTE, also known as alpine treeline or subalpine parkland), is a conspicuous feature of mountain landscapes throughout the world. Climate change-driven increases in temperature are believed to result in FTE movement and tree invasion of subalpine meadows, which have been documented throughout the Northern Hemisphere...
Resource Type:: Dissertation
Full Text:: Spies assisted with the study design and writing of chapters 2-4. Demetrios Gatziolis and Andrew

Interactive visual analysis promotes exploration of long-term ecological data

Creator:: Pham, Tuan, Jones, Julia A., Metoyer, Ronald, Swanson, Frederick, and Pabst, Robert
Abstract:: Long-term ecological data are crucial in helping ecologists understand ecosystem function and environmental change. Nevertheless, these kinds of data sets are difficult to analyze because they are usually large, multivariate, and spatiotemporal. Although existing analysis tools such as statistical methods and spreadsheet software permit rigorous tests of pre-conceived hypotheses and...
Resource Type:: Article

Thermal optimality of net ecosystem exchange of carbon dioxide and underlying mechanisms

Creator:: Niu, Shuli, Luo, Yiqi, Fei, Shenfeng, Yuan, Wenping, Schimel, David, Law, Beverly E., Ammann, Christof, Arain, M. Altaf, Arneth, Almut, Aubinet, Marc, Barr, Alan, Beringer, Jason, Bernhofer, Christian, Black, T. Andrew, Buchmann, Nina, Cescatti, Alessandro, Chen, Jiquan, Davis, Kenneth J., Dellwik, Ebba, Desai, Ankur R., Etzold, Sophia, Francois, Louis, Gianelle, Damiano, Gielen, Bert, Goldstein, Allen, Groenendijk, Margriet, Gu, Lianhong, Hanan, Niall, Helfter, Carole, Hirano, Takashi, Hollinger, David Y., Jones, Mike B., Kiely, Gerard, Kolb, Thomas E., Kutsch, Werner L., Lafleur, Peter, Lawrence, David M., Li, Linghao, Lindroth, Anders, Litvak, Marcy, Loustau, Denis, Lund, Magnus, Marek, Michal, Martin, Timothy A., Matteucci, Giorgio, Migliavacca, Mirco, Montagnani, Leonardo, Moors, Eddy, Munger, J. William, Noormets, Asko, Oechel, Walter, Olejnik, Janusz, Paw U, Kyaw Tha, Pilegaard, Kim, Rambal, Serge, Raschi, Antonio, Scott, Russell L., Seufert, Gunther, Spano, Donatella, Stoy, Paul, Sutton, Mark A., Varlagin, Andrej, Vesala, Timo, Weng, Ensheng, Wohlfahrt, Georg, Yang, Bai, Zhang, Zhongda, and Zhou, Xuhui
Abstract:: It is well established that individual organisms can acclimate and adapt to temperature to optimize their functioning. However, thermal optimization of ecosystems, as an assemblage of organisms, has not been examined at broad spatial and temporal scales. Here, we compiled data from 169 globally distributed sites of eddy covariance and...
Resource Type:: Article
Full Text:: , Jason Beringer12, Christian Bernhofer13, T. Andrew Black14, Nina Buchmann15, Alessandro Cescatti16

Experiments and Observations on How Changes in Riparian Forests Affect Light and Stream Ecosystems

Creator:: Swartz, Allison G.
Abstract:: Riparian zones are ecotones between terrestrial and aquatic ecosystems. Processes in streams are strongly influenced by riparian forest communities, age, stage and structure. Temperate forests across much of North America, including riparian areas, are recovering from historic land clearing with many stands in the stem-exclusion phase of development in which...
Resource Type:: Dissertation

Mitigation Banks in Washington State: Case Study of Developing the Schold Farm Mitigation Bank

Creator:: Dadisman, Jennifer
Abstract:: Wetland habitats are disappearing at an alarming rate and research is finding that establishment and creation of wetland habitat is generally unsuccessful. Typical mitigation strategies in the past have created multiple small isolated wetlands with little functioning habitat. Within Washington State, guidance and research recommends utilizing mitigation banks to compensate...
Resource Type:: Capstone Project

ScholarsArchive@OSU

Effects of spatial scale and heterogeneity on avian occupancy dynamics and population trends in forested mountain landscapes

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

Historical forest succession and disturbance dynamics in Coastal Douglas-fir forests in the southern western Cascades of Oregon

Management trade-off between aboveground carbon storage and understory plant species richness in temperate forests

The use of remote sensing for characterizing forests in wildlife habitat modeling

Patterns of tree establishment and vegetation composition in relation to climate and topography of a subalpine meadow landscape, Jefferson Park, Oregon, USA

Interactive visual analysis promotes exploration of long-term ecological data

Thermal optimality of net ecosystem exchange of carbon dioxide and underlying mechanisms

Experiments and Observations on How Changes in Riparian Forests Affect Light and Stream Ecosystems

Mitigation Banks in Washington State: Case Study of Developing the Schold Farm Mitigation Bank

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