Publications
Filter Total Items: 234
How hydrologic connectivity regulates water quality in river corridors How hydrologic connectivity regulates water quality in river corridors
Downstream flow in rivers is repeatedly delayed by hydrologic exchange with off‐channel storage zones where biogeochemical processing occurs. We present a dimensionless metric that quantifies river connectivity as the balance between downstream flow and the exchange of water with the bed, banks, and floodplains. The degree of connectivity directly influences downstream water quality —...
Authors
Judson Harvey, Jesus Gomez-Velez, Noah Schmadel, Durelle Scott, Elizabeth W. Boyer, Richard Alexander, Ken Eng, Heather E. Golden, Albert Kettner, Christopher Konrad, Richard Moore, Jim Pizzuto, Gregory E. Schwarz, Chris Soulsby, Jay Choi
Quantifying climate sensitivity and climate-driven change in North American amphibian communities Quantifying climate sensitivity and climate-driven change in North American amphibian communities
Changing climate will impact species’ ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited to single species and locations. Here we show that amphibian communities are responsive to climatic variability, using >500,000 time-series observations for 81...
Authors
David A.W. Miller, Evan H. Campbell Grant, Erin L. Muths, Staci M. Amburgey, M. J. Adams, Maxwell B. Joseph, J. Hardin Waddle, Pieter T.J. Johnson, Maureen E. Ryan, Benedikt R. Schmidt, Daniel L. Calhoun, Courtney L. Davis, Robert N. Fisher, David M. Green, Blake R. Hossack, Tracy A.G. Rittenhouse, Susan C. Walls, Larissa L. Bailey, Sam S. Cruickshank, Gary M. Fellers, Thomas A. Gorman, Carola A. Haas, Ward Hughson, David S. Pilliod, Steven J. Price, Andrew M. Ray, Walter Sadinski, Daniel Saenz, William J. Barichivich, Adrianne B. Brand, Cheryl S. Brehme, Rosi Dagit, Katy S. Delaney, Brad M. Glorioso, Lee B. Kats, Patrick M. Kleeman, Christopher Pearl, Carlton J. Rochester, Seth P. D. Riley, Mark F. Roth, Brent Sigafus
By
Ecosystems Mission Area, Water Resources Mission Area, Species Management Research Program, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, John Wesley Powell Center for Analysis and Synthesis, Northern Rocky Mountain Science Center, South Atlantic Water Science Center (SAWSC), Southwest Biological Science Center, Upper Midwest Environmental Sciences Center, Western Ecological Research Center (WERC), Wetland and Aquatic Research Center
A method to detect discontinuities in census data A method to detect discontinuities in census data
The distribution of pattern across scales has predictive power in the analysis of complex systems. Discontinuity approaches remain a fruitful avenue of research in the quest for quantitative measures of resilience because discontinuity analysis provides an objective means of identifying scales in complex systems and facilitates delineation of hierarchical patterns in processes, structure...
Authors
C. Barichievy, D. G. Angeler, T. N. Eason, A. S. Garmestani, K.L. Nash, C.A. Stow, S. Sundstrom, Craig R. Allen
The distribution and role of functional abundance in cross‐scale resilience The distribution and role of functional abundance in cross‐scale resilience
The cross‐scale resilience model suggests that system‐level ecological resilience emerges from the distribution of species’ functions within and across the spatial and temporal scales of a system. It has provided a quantitative method for calculating the resilience of a given system and so has been a valuable contribution to a largely qualitative field. As it is currently laid out, the...
Authors
S. M. Sundstrom, D. G. Angeler, C. Barichievy, T. N. Eason, A. S. Garmestani, L. Gunderson, M. Knutson, K.L. Nash, T. L. Spanbauer, C.A. Stow, Craig R. Allen
Differing modes of biotic connectivity within freshwater ecosystem mosaics Differing modes of biotic connectivity within freshwater ecosystem mosaics
We describe a collection of aquatic and wetland habitats in an inland landscape, and their occurrence within a terrestrial matrix, as a “freshwater ecosystem mosaic” (FEM). Aquatic and wetland habitats in any FEM can vary widely, from permanently ponded lakes, to ephemerally ponded wetlands, to groundwater‐fed springs, to flowing rivers and streams. The terrestrial matrix can also vary...
Authors
David M. Mushet, Laurie C. Alexander, Micah Bennet, Kate Schofield, Jay R. Christensen, Genevieve Ali, Amina I. Pollard, Ken M. Fritz, Megan Lang
Understanding how microbiomes influence the systems they inhabit Understanding how microbiomes influence the systems they inhabit
Translating the ever-increasing wealth of information on microbiomes (environment, host, or built environment) to advance the understanding of system-level processes is proving to be an exceptional research challenge. One reason for this challenge is that relationships between characteristics of microbiomes and the system-level processes they influence are often evaluated in the absence...
Authors
E.K. Hall, E. S. Bernhardt, R.L. Bier, M.A. Bradford, C.M. Boot, J.B. Cotner, P.A. del Giorgio, S.E. Evans, E.B.; Graham, S.E. Jones, J.T. Lennon, Kenneth J. Locey, D. Nemergut, B. Osborne, J.D. Rocca, J.S. Schimel, Mark Waldrop, M.W. Wallenstein
Improving understanding of soil organic matter dynamics by triangulating theories, measurements, and models Improving understanding of soil organic matter dynamics by triangulating theories, measurements, and models
Soil organic matter (SOM) turnover increasingly is conceptualized as a tension between accessibility to microorganisms and protection from decomposition via physical and chemical association with minerals in emerging soil biogeochemical theory. Yet, these components are missing from the original mathematical models of belowground carbon dynamics and remain underrepresented in more recent
Authors
Joseph C. Blankinship, Susan E. Crow, Asmeret Asefaw Berhe, Jennifer L. Druhan, Katherine A. Heckman, Marco Keiluweit, Corey R. Lawrence, Erika Marin-Spiotta, Alain F. Plante, Craig Rasmussen, Christina Schadel, Joshua P. Schmiel, Carlos A. Sierra, Aaron Thomson, Rota Wagai, William R. Weider
Towards coordinated regional multi-satellite InSAR volcano observations: Results from the Latin America pilot project Towards coordinated regional multi-satellite InSAR volcano observations: Results from the Latin America pilot project
Within Latin America, about 319 volcanoes have been active in the Holocene, but 202 of these volcanoes have no seismic, deformation or gas monitoring. Following the 2012 Santorini Report on satellite Earth Observation and Geohazards, the Committee on Earth Observation Satellites (CEOS) developed a 4-year pilot project (2013-2017) to demonstrate how satellite observations can be used to...
Authors
Matthew Pritchard, Juliet Biggs, Christelle Wauthier, Eugenio Sansosti, David W. D. Arnold, Francisco Delgado, Susanna Ebmeier, Scott Henderson, Kristen Stephens, C. Cooper, Kendall Wnuk, Falk Amelung, Victor Rivera Aguilar, Patricia Mothes, Orlando Macedo, Luis E. Lara, Michael P. Poland, Simona Zoffoli
Candidate products for operational earthquake forecasting illustrated using the HayWired planning scenario, including one very quick (and not‐so‐dirty) hazard‐map option Candidate products for operational earthquake forecasting illustrated using the HayWired planning scenario, including one very quick (and not‐so‐dirty) hazard‐map option
In an effort to help address debates on the usefulness of operational earthquake forecasting (OEF), we illustrate a number of OEF products that could be automatically generated in near‐real time. To exemplify, we use an M 7.1 mainshock on the Hayward fault, which is very similar to the U.S. Geological Survey (USGS) HayWired earthquake planning scenario. Given that there is always some...
Authors
Edward H. Field, Kevin R. Milner
A framework for identifying and characterising coral reef “oases” against a backdrop of degradation A framework for identifying and characterising coral reef “oases” against a backdrop of degradation
Human activities have led to widespread ecological decline; however, the severity of degradation is spatially heterogeneous due to some locations resisting, escaping, or rebounding from disturbances.We developed a framework for identifying oases within coral reef regions using long‐term monitoring data. We calculated standardised estimates of coral cover (z‐scores) to distinguish sites...
Authors
James R. Guest, Peter J. Edmunds, Ruth D. Gates, Ilsa B. Kuffner, Andreas J Andersson, Brian B. Barnes, Iliana Chollett, Travis A. Courtney, Robin Elahi, Kevin Gross, Elizabeth A. Lenz, Satoshi Mitarai, Peter J. Mumby, Hannah R. Nelson, Britt A. Parker, Hollie M. Putnam, Caroline S. Rogers, Lauren Toth
Quantifying ecosystem service flows at multiple scales across the range of a long-distance migratory species Quantifying ecosystem service flows at multiple scales across the range of a long-distance migratory species
Migratory species provide ecosystem goods and services throughout their annual cycles, often over long distances. Designing effective conservation solutions for migratory species requires knowledge of both species ecology and the socioeconomic context of their migrations. We present a framework built around the concept that migratory species act as carriers, delivering benefit flows to...
Authors
Darius J. Semmens, James E. Diffendorfer, Kenneth J. Bagstad, Ruscena Wiederholt, Karen Oberhauser, Leslie Ries, Brice X. Semmens, Joshua Goldstein, John B. Loomis, Wayne E. Thogmartin, Brady J. Mattsson, Laura Lopez-Hoffman
Placing the Common Era in a Holocene context: Millennial to centennial patterns and trends in the hydroclimate of North America over the past 2000 years Placing the Common Era in a Holocene context: Millennial to centennial patterns and trends in the hydroclimate of North America over the past 2000 years
A synthesis of 93 hydrologic records from across North and Central America, and adjacent tropical and Arctic islands, reveals centennial to millennial trends in the regional hydroclimates of the Common Era (CE; past 2000 years). The hydrological records derive from materials stored in lakes, bogs, caves, and ice from extant glaciers, which have the continuity through time to preserve low...
Authors
Bryan Shuman, Cody C. Routson, Nicholas P. McKay, Sherilyn Fritz, Darrell S. Kaufman, Matthew Kirby, Connor Nolan, Gregory T. Pederson, Jeannine-Marie St. Jacques