Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (4)
- Life Sciences (4)
- Physical Sciences and Mathematics (4)
- Ecology and Evolutionary Biology (2)
- Other Environmental Sciences (2)
-
- Sustainability (2)
- American Art and Architecture (1)
- Animal Sciences (1)
- Anthropology (1)
- Aquaculture and Fisheries (1)
- Archaeological Anthropology (1)
- Architectural Engineering (1)
- Architecture (1)
- Arts and Humanities (1)
- Electrical and Computer Engineering (1)
- Engineering (1)
- Environmental Monitoring (1)
- Forest Sciences (1)
- History of Art, Architecture, and Archaeology (1)
- Natural Resources Management and Policy (1)
- Plant Sciences (1)
- Social and Behavioral Sciences (1)
- Terrestrial and Aquatic Ecology (1)
- Keyword
-
- Acoustic localization (1)
- Aquatic ecology -- Columbia River Watershed (1)
- Aquatic habitats (1)
- Autonomous vehicles (1)
- Beamforming (1)
-
- Biotic communities -- United States (1)
- Chinook salmon -- Columbia River Watershed (1)
- Conservation biology -- Methodology (1)
- Domestic architecture -- Northwest Coast of North America. (1)
- Endangered plants -- United States (1)
- Forest ecology -- Biogeochemical cycles (1)
- Forest ecology -- Simulation methods (1)
- Household archaeology -- Northwest Coast of North America (1)
- Land management (1)
- Land use (1)
- Lawn care industry (1)
- Plank houses -- Northwest Coast of North America -- Design and construction (1)
- Plank houses -- Northwest Coast of North America -- Maintenance and repair (1)
- Plant conservation (1)
- Plants -- Classification (1)
- Roots (Botany) -- Development (1)
- Roots (Botany) -- Ecology (1)
- Roots (Botany) -- Physiology (1)
- Sonar (1)
- Sustainability (1)
- Urban ecology (Biology) (1)
- Urbanization (1)
- Publication
- Publication Type
Articles 1 - 7 of 7
Full-Text Articles in Entire DC Network
Historical Vegetation Of Three Salmon-Bearing Watersheds In The Interior Columbia River Basin, Tyanna Smith
Historical Vegetation Of Three Salmon-Bearing Watersheds In The Interior Columbia River Basin, Tyanna Smith
PSU McNair Scholars Online Journal
Land use practices can be a contributing factor to environmental degradation and have been the focus of many ecological studies. One aspect that is less addressed is land use history and the effects that past practices, such as logging and grazing, can have on the current landscape. This paper describes research and the synthesis of material on the environmental history and watershed characteristics for three watersheds located within spawning and rearing areas for Chinook salmon in the Grande Ronde River Basin in Northeast Oregon: upper Grande Ronde River, Catherine Creek, and Minam River. The Grande Ronde Basin is critical spawning …
Advances In Aquatic Target Localization With Passive Sonar, John Thomas Gebbie
Advances In Aquatic Target Localization With Passive Sonar, John Thomas Gebbie
Dissertations and Theses
New underwater passive sonar techniques are developed for enhancing target localization capabilities in shallow ocean environments. The ocean surface and the seabed act as acoustic mirrors that reflect sound created by boats or subsurface vehicles, which gives rise to echoes that can be heard by hydrophone receivers (underwater microphones). The goal of this work is to leverage this "multipath" phenomenon in new ways to determine the origin of the sound, and thus the location of the target. However, this is difficult for propeller driven vehicles because the noise they produce is both random and continuous in time, which complicates its …
Assessing The Homogenization Of Urban Land Management With An Application To Us Residential Lawn Care, Colin Polsky, J. Morgan Grove, Chris Knudson, Peter M. Groffman, Neil D. Bettez, Jeannine Cavender-Bares, Sharon J. Hall, James B. Heffernan, Sarah E. Hobbie, Kelli L. Larson, Jennifer L. Morse, Christopher Neill, Kristen C. Nelson, Laura A. Ogden, Jarlath O'Neil-Dunne, Diane E. Pataki, Rinku Roy Chowdhury, Meredith K. Steele
Assessing The Homogenization Of Urban Land Management With An Application To Us Residential Lawn Care, Colin Polsky, J. Morgan Grove, Chris Knudson, Peter M. Groffman, Neil D. Bettez, Jeannine Cavender-Bares, Sharon J. Hall, James B. Heffernan, Sarah E. Hobbie, Kelli L. Larson, Jennifer L. Morse, Christopher Neill, Kristen C. Nelson, Laura A. Ogden, Jarlath O'Neil-Dunne, Diane E. Pataki, Rinku Roy Chowdhury, Meredith K. Steele
Environmental Science and Management Faculty Publications and Presentations
Changes in land use, land cover, and land management present some of the greatest potential global environmental challenges of the 21st century. Urbanization, one of the principal drivers of these transformations, is commonly thought to be generating land changes that are increasingly similar. An implication of this multiscale homogenization hypothesis is that the ecosystem structure and function and human behaviors associated with urbanization should be more similar in certain kinds of urbanized locations across biogeophysical gradients than across urbanization gradients in places with similar biogeophysical characteristics. This paper introduces an analytical framework for testing this hypothesis, and applies the framework …
Building And Maintaining Plankhouses At Two Villages On The Southern Northwest Coast Of North America, Emily Evelyn Shepard
Building And Maintaining Plankhouses At Two Villages On The Southern Northwest Coast Of North America, Emily Evelyn Shepard
Dissertations and Theses
Plankhouses were functionally and symbolically integral to Northwest Coast societies, as much of economic and social life was predicated on these dwellings. This thesis investigates both plankhouse architecture and the production of these dwellings. Studying plankhouse construction and maintenance provides information regarding everyday labor, landscape use outside of villages, organization of complex tasks, and resource management.
This thesis investigates three plankhouse structures at two sites, Meier and Cathlapotle, in the Lower Columbia River Region of the southern Northwest Coast of North America. Methods consisted of digitizing over 1,100 architectural features, creating detailed maps of architectural features, and conducting statistical and …
Getting Plant Conservation Right (Or Not): The Case Of The United States, Kayri Havens, Andrea T. Kramer, Edward O. Guerrant Jr.
Getting Plant Conservation Right (Or Not): The Case Of The United States, Kayri Havens, Andrea T. Kramer, Edward O. Guerrant Jr.
Environmental Science and Management Faculty Publications and Presentations
Effective plant conservation includes addressing basic needs such as information about species distribution and rarity; research, management, education, and training capacity to mitigate threats facing threatened species; policy and funding to support continued capacity and conservation; and, ultimately, a public that understands and supports the importance of plants and the need for their conservation. Coordination of plant conservation efforts is also needed to ensure that resources and expertise are used in a strategic, efficient, and effective manner.We argue that no country is currently getting plant conservation right; plants are becoming increasingly rare around the world. Plants are often not fully …
Improving The Representation Of Roots In Terrestrial Models, Erica A.H. Smithwick, Melissa S. Lucash, M. Luke Mccormack, Gajan Sivandran
Improving The Representation Of Roots In Terrestrial Models, Erica A.H. Smithwick, Melissa S. Lucash, M. Luke Mccormack, Gajan Sivandran
Environmental Science and Management Faculty Publications and Presentations
Root biomass, root production and lifespan, and root-mycorrhizal interactions govern soil carbon fluxes and resource uptake and are critical components of terrestrial models. However, limitations in data and confusions over terminology, together with a strong dependence on a small set of conceptual frameworks, have limited the exploration of root function in terrestrial models. We review the key root processes of interest to both field ecologists and modelers including root classification, production, turnover, biomass, resource uptake, and depth distribution to ask (1) what are contemporary approaches for modeling roots in terrestrial models? and (2) can these approaches be improved via recent …
Multimodel Simulations Of Forest Harvesting Effects On Long-Term Productivity And Cn Cycling In Aspen Forests, Fugui Wang, David J. Mladenoff, Jodi A. Forrester, Juan A. Blanco, Robert M. Scheller, Scott D. Peckham, Cindy Keough, Melissa S. Lucash
Multimodel Simulations Of Forest Harvesting Effects On Long-Term Productivity And Cn Cycling In Aspen Forests, Fugui Wang, David J. Mladenoff, Jodi A. Forrester, Juan A. Blanco, Robert M. Scheller, Scott D. Peckham, Cindy Keough, Melissa S. Lucash
Environmental Science and Management Faculty Publications and Presentations
The effects of forest management on soil carbon (C) and nitrogen (N) dynamics vary by harvest type and species. We simulated long-term effects of bole-only harvesting of aspen (Populus tremuloides) on stand productivity and interaction of CN cycles with a multiple model approach. Five models, Biome-BGC, CENTURY, FORECAST, LANDIS-II with Century-based soil dynamics, and PnET-CN, were run for 350 years with seven harvesting events on nutrient-poor, sandy soils representing northwestern Wisconsin, USA. Twenty CN state and flux variables were summarized from the models' outputs, and statistically analyzed using ordination and variance analysis methods. The multiple models' averages suggest that bole-only …