Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 18 of 18

Full-Text Articles in Physical Sciences and Mathematics

State And Transition Models In Space And Time – Using Stms To Understand Broad Patterns Of Ecosystem Change In Iceland, I. C. Barrio, D. S. Hik, T. A. Mulloy, J. Thorsson, K. Svavarsdóttir, B. Marteinsdóttir, I. S. Jónsdóttir Jan 2022

State And Transition Models In Space And Time – Using Stms To Understand Broad Patterns Of Ecosystem Change In Iceland, I. C. Barrio, D. S. Hik, T. A. Mulloy, J. Thorsson, K. Svavarsdóttir, B. Marteinsdóttir, I. S. Jónsdóttir

IGC Proceedings (1997-2023)

Managing ecological systems sustainably requires a deep understanding of ecosystem structure and the processes driving their dynamics. Conceptual models can lead to improved management, by providing a framework for organizing knowledge about a system and identifying the causal agents of change. We developed state-and-transition models (STMs) to describe landscape changes in Iceland over three historical periods with different human influence, from pre-settlement to present days. Our models identified the set of possible states, transitions and thresholds in these ecosystems and their changes over time. To illustrate the use of these models for predicting and improving management interventions, we applied our …


The Creeks And Communities Strategy: Accelerating Cooperative Riparian Restoration, Sandra Wyman, Sherman Swanson, Laura Van Riper Aug 2021

The Creeks And Communities Strategy: Accelerating Cooperative Riparian Restoration, Sandra Wyman, Sherman Swanson, Laura Van Riper

IGC Proceedings (1997-2023)

No abstract provided.


Anticipating And Adapting To The Future Impacts Of Climate Change On The Health, Security And Welfare Of Low Elevation Coastal Zone (Lecz) Communities In Southeastern Usa, Thomas Allen, Joshua Behr, Anamaria Bukvic, Ryan S.D. Calder, Kiki Caruson, Charles Connor, Christopher D'Elia, David Dismukes, Robin Ersing, Rima Franklin, Jesse Goldstein, Jonathon Goodall, Scott Hemmerling, Jennifer Irish, Steven Lazarus, Derek Loftis, Mark Luther, Leigh Mccallister, Karen Mcglathery, Molly Mitchell, William Moore, Charles Reid Nichols, Karinna Nunez, Matthew Reidenbach, Julie Shortridge, Robert Weisberg, Robert Weiss, Lynn Donelson Wright, Meng Xia, Kehui Xu, Donald Young, Gary Zarillo, Julie C. Zinnert Jan 2021

Anticipating And Adapting To The Future Impacts Of Climate Change On The Health, Security And Welfare Of Low Elevation Coastal Zone (Lecz) Communities In Southeastern Usa, Thomas Allen, Joshua Behr, Anamaria Bukvic, Ryan S.D. Calder, Kiki Caruson, Charles Connor, Christopher D'Elia, David Dismukes, Robin Ersing, Rima Franklin, Jesse Goldstein, Jonathon Goodall, Scott Hemmerling, Jennifer Irish, Steven Lazarus, Derek Loftis, Mark Luther, Leigh Mccallister, Karen Mcglathery, Molly Mitchell, William Moore, Charles Reid Nichols, Karinna Nunez, Matthew Reidenbach, Julie Shortridge, Robert Weisberg, Robert Weiss, Lynn Donelson Wright, Meng Xia, Kehui Xu, Donald Young, Gary Zarillo, Julie C. Zinnert

Political Science & Geography Faculty Publications

Low elevation coastal zones (LECZ) are extensive throughout the southeastern United States. LECZ communities are threatened by inundation from sea level rise, storm surge, wetland degradation, land subsidence, and hydrological flooding. Communication among scientists, stakeholders, policy makers and minority and poor residents must improve. We must predict processes spanning the ecological, physical, social, and health sciences. Communities need to address linkages of (1) human and socioeconomic vulnerabilities; (2) public health and safety; (3) economic concerns; (4) land loss; (5) wetland threats; and (6) coastal inundation. Essential capabilities must include a network to assemble and distribute data and model code to …


Grazing Management Processes And Strategies For Riparian Wetland Areas, Sandra Wyman, Sherman Swanson Nov 2020

Grazing Management Processes And Strategies For Riparian Wetland Areas, Sandra Wyman, Sherman Swanson

IGC Proceedings (1997-2023)

No abstract provided.


Seasonal Grassland Productivity Forecast For The U.S. Great Plains Using Grass-Cast, Melannie D. Hartman, William J. Parton, Justin D. Derner, Darin K. Schulte, William K. Smith, Dannele E. Peck, Ken A. Day, Stephen J. Del Grosso, Susan Lutz, Brian Fuchs, Maosi Chen, Wei Gao Nov 2020

Seasonal Grassland Productivity Forecast For The U.S. Great Plains Using Grass-Cast, Melannie D. Hartman, William J. Parton, Justin D. Derner, Darin K. Schulte, William K. Smith, Dannele E. Peck, Ken A. Day, Stephen J. Del Grosso, Susan Lutz, Brian Fuchs, Maosi Chen, Wei Gao

Drought Mitigation Center: Faculty Publications

Every spring, ranchers in the drought-prone U.S. Great Plains face the same difficult challenge —trying to estimate how much forage will be available for livestock to graze during the upcoming summer grazing season. To reduce this uncertainty in predicting forage availability, we developed an innovative new grassland productivity forecast system, named Grass-Cast, to provide science-informed estimates of growing season aboveground net primary production (ANPP). Grass-Cast uses over 30 yr of historical data including weather and the satellite-derived normalized vegetation difference index (NDVI)—combined with ecosystem modeling and seasonal precipitation forecasts—to predict if rangelands in individual counties are likely to produce below-normal, …


Herder Mental Stocking Rate In The Rangeland Regions Of Northern China, Yanting Yin, Xiangyang Hou, David L. Michalk, Xiangjun Yun, Yong Ding, Xiliang Li, Jizhou Ren Apr 2020

Herder Mental Stocking Rate In The Rangeland Regions Of Northern China, Yanting Yin, Xiangyang Hou, David L. Michalk, Xiangjun Yun, Yong Ding, Xiliang Li, Jizhou Ren

IGC Proceedings (1997-2023)

In 2002, the Chinese government issued the “balancing animals and grass” policy to control the degradation problem of northern China, but these programs have been widely resisted by herders. We proposed that herder had their mental stocking rate, which refers to the number of animals that the herders think they can place or maintain on a piece of rangeland over a specified period of time. It is the mental stocking rate that guides herder on how to adjust livestock-breeding practices. This study surveyed herder opinion of grass-animal balance in the meadow steppe, typical steppe and desert steppe regions of northern …


Impacts And Management Of Invasive Burrowing Herbivores In Grasslands, Peter J. S. Fleming, Limin Hua, Desley Whisson Mar 2020

Impacts And Management Of Invasive Burrowing Herbivores In Grasslands, Peter J. S. Fleming, Limin Hua, Desley Whisson

IGC Proceedings (1997-2023)

Maintenance of the productivity of the world’s grasslands is critical for livestock production, bio-diversity conservation and ecosystem services. Using case studies from Australasia, North America and China, we identify general principles of managing invasive native and introduced herbivores. Management aims to achieve optimised livestock production while conserving biodiversity and ecosystem services, which are often intangible. We identify similarities and differences in the ecologies and impacts of European wild rabbits, Californian ground squirrel and plateau zokors, discuss management tools and strategies, and the ecological, social and cultural factors affecting management. The ecosystem engineering characteristics of these species that make them important …


Toward A Method Of Collaborative, Evidence-Based Response To Desertification, Brandon T. Bestelmeyer, Joel R. Brown, Jason W. Karl, Jeffrey E. Herrick, Kris M. Havstad Feb 2020

Toward A Method Of Collaborative, Evidence-Based Response To Desertification, Brandon T. Bestelmeyer, Joel R. Brown, Jason W. Karl, Jeffrey E. Herrick, Kris M. Havstad

IGC Proceedings (1997-2023)

Over generalized narratives about how desertified ecosystems will respond to restoration actions may result in wasted resources, missed opportunities, or accelerated degradation. Evidence-based collaborative adaptive management (CAM) could solve this problem by providing site-specific information that is trusted by users and enables learning opportunities. Although calls for CAM are increasing, many recommendations remain abstract and difficult to operationalize in specific projects. We review some general challenges for managing desertification in rangelands and draw upon recommendations in the recent literature to develop a 6-step method of CAM to address desertification. The method draws upon our ongoing experiences and makes novel connections …


Slides: The Columbia River Basin, Barbara Cosens Jun 2016

Slides: The Columbia River Basin, Barbara Cosens

Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10)

Presenter: Barbara Cosens, Professor and Associate Dean of Faculty, University of Idaho College of Law, Waters of the West Interdisciplinary Program

16 slides


Adaptive Resource Management And The Value Of Information, Byron K. Williams, Mitchell J. Eaton, David R. Breininger Jan 2011

Adaptive Resource Management And The Value Of Information, Byron K. Williams, Mitchell J. Eaton, David R. Breininger

United States Geological Survey: Staff Publications

The value of information is a general and broadly applicable concept that has been used for several decades to aid in making decisions in the face of uncertainty. Yet there are relatively few examples of its use in ecology and natural resources management, and almost none that are framed in terms of the future impacts of management decisions. In this paper we discuss the value of information in a context of adaptive management, in which actions are taken sequentially over a time frame and both future resource conditions and residual uncertainties about resource responses are taken into account. Our objective …


Adaptive Resource Management And The Value Of Information, Byron K. Williams, Mitchell J. Eaton, David R. Breininger Jan 2011

Adaptive Resource Management And The Value Of Information, Byron K. Williams, Mitchell J. Eaton, David R. Breininger

United States Geological Survey: Staff Publications

The value of information is a general and broadly applicable concept that has been used for several decades to aid in making decisions in the face of uncertainty. Yet there are relatively few examples of its use in ecology and natural resources management, and almost none that are framed in terms of the future impacts of management decisions. In this paper we discuss the value of information in a context of adaptive management, in which actions are taken sequentially over a timeframe and both future resource conditions and residual uncertainties about resource responses are taken into account. Our objective is …


Slides: Delta Overview, Leo Winternitz Jun 2009

Slides: Delta Overview, Leo Winternitz

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Leo Winternitz, The Nature Conservancy, California Water Program, Sacramento, CA

17 slides


Slides: Groundwater Declines, Climate Change And Approaches To Adaptation, Katharine Jacobs Jun 2009

Slides: Groundwater Declines, Climate Change And Approaches To Adaptation, Katharine Jacobs

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Katharine Jacobs, Director of the Arizona Water Institute, University of Arizona

37 slides


Slides: Coalbed Methane Water Quantity/Quality, Tom Darin Jun 2004

Slides: Coalbed Methane Water Quantity/Quality, Tom Darin

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Tom Darin, Jackson Hole Conservation Alliance.

18 slides.


Life Begins At 50: Ferc Relicensing Under The Federal Power Act, Thomas N. Russo Jun 1997

Life Begins At 50: Ferc Relicensing Under The Federal Power Act, Thomas N. Russo

Dams: Water and Power in the New West (Summer Conference, June 2-4)

5 pages.


Agenda: Dams: Water And Power In The New West, University Of Colorado Boulder. Natural Resources Law Center Jun 1997

Agenda: Dams: Water And Power In The New West, University Of Colorado Boulder. Natural Resources Law Center

Dams: Water and Power in the New West (Summer Conference, June 2-4)

Conference organizers and/or speakers included University of Colorado School of Law professors David H. Getches, Douglas S. Kenney, Kathryn M. Mutz, Elizabeth Ann (Betsy) Rieke, Charles F. Wilkinson and Lawrence J. MacDonnell.

The keynote address by Charles F. Wilkinson is titled Coming to Grips with Growth in the West: Traditional Communities, Free Rivers and the New Megalopoli, and it will be held on Monday, June 2, at 12:30 p.m. in the Lindsley Memorial Courtroom of the law school. Wilkinson is a noted law professor, writer and authority on Western issues.

The conference will begin by providing historical context for the …


A Meeting Of Opposites—Is Sustainable Use Of The Columbia River Possible?, John M. Volkman Jun 1995

A Meeting Of Opposites—Is Sustainable Use Of The Columbia River Possible?, John M. Volkman

Sustainable Use of the West's Water (Summer Conference, June 12-14)

47 pages.

Contains footnotes.


Sustainability: Myth And Reality, Kai Lee Jun 1995

Sustainability: Myth And Reality, Kai Lee

Sustainable Use of the West's Water (Summer Conference, June 12-14)

23 pages (includes illustrations).

Contains references.