Publications
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Comparing approaches to spatially explicit ecosystem service modeling: a case study from the San Pedro River, Arizona
Although the number of ecosystem service modeling tools has grown in recent years, quantitative comparative studies of these tools have been lacking. In this study, we applied two leading open-source, spatially explicit ecosystem services modeling tools – Artificial Intelligence for Ecosystem Services (ARIES) and Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) – to the San Pedro
Authors
Kenneth J. Bagstad, Darius J. Semmens, Robert Winthrop
Onset of deglacial warming in West Antarctica driven by local orbital forcing
The cause of warming in the Southern Hemisphere during the most recent deglaciation remains a matter of debate. Hypotheses for a Northern Hemisphere trigger, through oceanic redistributions of heat, are based in part on the abrupt onset of warming seen in East Antarctic ice cores and dated to 18,000 years ago, which is several thousand years after high-latitude Northern Hemisphere summer insolati
Authors
WAIS Divide Project Members, T. J. Fudge, Eric J. Steig, Bradley R. Markle, Spruce W. Schoenemann, Qinghua Ding, Kendrick C. Taylor, Joseph R. McConnell, Edward J. Brook, Todd Sowers, James W. C. White, Richard B. Alley, Hai Cheng, Gary D. Clow, Jihong Cole-Dai, Howard Conway, Kurt M. Cuffey, Jon S. Edwards, R. Lawrence Edwards, Ross Edwards, John M. Fegyveresi, David Ferris, Joan J. Fitzpatrick, Jay Johnson, Geoffrey Hargreaves, James E. Lee, Olivia J. Maselli, William Mason, Kenneth C. McGwire, Logan E. Mitchell, Nicolai B. Mortensen, Peter Neff, Anais J. Orsi, Trevor J. Popp, Andrew J. Schauer, Jeffrey P. Severinghaus, Michael Sigl, Matthew K. Spencer, Bruce H. Vaughn, Donald E. Voigt, Edwin D. Waddington, Xianfeng Wang, Gifford J. Wong
Locations and attributes of wind turbines in New Mexico, 2011
This dataset represents an update to U.S. Geological Survey Data Series 596. Locations and attributes of wind turbines in New Mexico, 2009 (available at http://pubs.usgs.gov/ds/596/).This updated New Mexico wind turbine Data Series provides geospatial data for all 562 wind turbines established within the State of New Mexico as of June 2011, an increase of 155 wind turbines from 2009.
Attributes s
Authors
Natasha B. Carr, James B. Diffendorfer, Tammy S. Fancher, Sarah J. Hawkins, Natalie Latysh, Kenneth J. Leib, Anne Marie Matherne
Locations and attributes of wind turbines in Colorado, 2011
This dataset represents an update to U.S. Geological Survey Data Series 597. Locations and attributes of wind turbines in Colorado, 2009 (available at http://pubs.usgs.gov/ds/597/). This updated Colorado wind turbine Data Series provides geospatial data for all 1,204 wind turbines established within the State of Colorado as of September 2011, an increase of 297 wind turbines from 2009.
Attributes
Authors
Natasha B. Carr, James E. Diffendorfer, Tammy S. Fancher, Sarah J. Hawkins, Natalie Latysh, Kenneth J. Leib, Anne Marie Matherne
An application of Social Values for Ecosystem Services (SolVES) to three national forests in Colorado and Wyoming
Despite widespread recognition that social-value information is needed to inform stakeholders and decision makers regarding trade-offs in environmental management, it too often remains absent from ecosystem service assessments. Although quantitative indicators of social values need to be explicitly accounted for in the decision-making process, they need not be monetary. Ongoing efforts to map such
Authors
Benson C. Sherrouse, Darius J. Semmens, Jessica M. Clement
Simulated impacts of mountain pine beetle and wildfire disturbances on forest vegetation composition and carbon stocks in the Southern Rocky Mountains
Forests play an important role in sequestering carbon and offsetting anthropogenic greenhouse gas emissions, but changing disturbance regimes may compromise the capability of forests to store carbon. In the Southern Rocky Mountains, a recent outbreak of mountain pine beetle (Dendroctonus ponderosae; MPB) has caused levels of tree mortality that are unprecedented in recorded history. To evaluate th
Authors
Megan K. Caldwell, Todd Hawbaker, Jenny S. Briggs, P.W. Cigan, Susan Stitt
Radiocarbon dating late Quaternary loess deposits using small terrestrial gastropod shells
Constraining the ages and mass accumulation rates of late Quaternary loess deposits is often difficult because of the paucity of organic material typically available for 14C dating and the inherent limitations of luminescence techniques. Radiocarbon dating of small terrestrial gastropod shells may provide an alternative to these methods as fossil shells are common in loess and contain ∼12% carbon
Authors
Jeff S. Pigati, John P. McGeehin, Daniel R. Muhs, E. Arthur Bettis
An evaluation of Mesodon and other larger terrestrial gastropod shells for dating late Holocene and historic alluvium in the Midwestern USA
Understanding the history of stream erosion and changes in channel morphology is important for managing and restoring unstable streams. One of the significant challenges in this type of research is establishing accurate dating of late Holocene and historic alluvium. Here we evaluate the potential of using 14C dating and amino acid racemization (AAR) to date large terrestrial gastropod shells that
Authors
Monica T. Rakovan, Jason A. Rech, Jeffery S. Pigati, Jeffrey C. Nekola, Gregory C. Wiles
Late Quaternary stream piracy and strath terrace formation along the Belle Fourche and lower Cheyenne Rivers, South Dakota and Wyoming
Stream piracy substantially affected the geomorphic evolution of the Missouri River watershed and drainages within, including the Little Missouri, Cheyenne, Belle Fourche, Bad, and White Rivers. The ancestral Cheyenne River eroded headward in an annular pattern around the eastern and southern Black Hills and pirated the headwaters of the ancestral Bad and White Rivers after ~ 660 ka. The headwater
Authors
John F. Stamm, Robert R. Hendricks, J. Foster Sawyer, Shannon Mahan, Brent J. Zaprowski, Nicholas M. Geibel, David C. Azzolini
Land-cover change in the conterminous United States from 1973 to 2000
Land-cover change in the conterminous United States was quantified by interpreting change from satellite imagery for a sample stratified by 84 ecoregions. Gross and net changes between 11 land-cover classes were estimated for 5 dates of Landsat imagery (1973, 1980, 1986, 1992, and 2000). An estimated 673,000 km2(8.6%) of the United States’ land area experienced a change in land cover at least one
Authors
Benjamin M. Sleeter, Terry L. Sohl, Thomas R. Loveland, Roger F. Auch, William Acevedo, Mark A. Drummond, Kristi Sayler, Stephen V. Stehman
Spatial dynamics of ecosystem service flows: a comprehensive approach to quantifying actual services
Recent ecosystem services research has highlighted the importance of spatial connectivity between ecosystems and their beneficiaries. Despite this need, a systematic approach to ecosystem service flow quantification has not yet emerged. In this article, we present such an approach, which we formalize as a class of agent-based models termed “Service Path Attribution Networks” (SPANs). These models,
Authors
Kenneth J. Bagstad, Gary W. Johnson, Brian Voigt, Ferdinando Villa
Monitoring intensity and patterns of off-highway vehicle (OHV) use in remote areas of the western USA
The continued growth of off-highway vehicle (OHV) activities – demonstrated by the dramatic increase in OHV sales, number of users, and areas experiencing OHV use – has elevated concerns about their ecological effects, the impacts on wildlife, and the sustainability of OHV use on secondary and tertiary road networks. Conflicts between visitors and wildlife are raising concerns about system resilie
Authors
Douglas S. Ouren, Alisa W. Coffin