Publications
Below are publications associated with the Southwest Biological Science Center's research.
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Filter Total Items: 1571
Fluvially-sourced sediment supply and climate modulate morphodynamics and state transitions in bistable aeolian dunefields Fluvially-sourced sediment supply and climate modulate morphodynamics and state transitions in bistable aeolian dunefields
Alternative stable state theory in aeolian geomorphology describes the occurrence of bare and vegetated aeolian dunes in response to long-term climatic and ecological drivers. Transitions between states, as well as their co-occurrence (bistability), can arise from perturbations to drivers, disturbance, and associated biophysical feedbacks. Here, we examine the role of upwind fluvial...
Authors
Joshua Caster, Joel B. Sankey, Temuulen Sankey, Taylor Joyal, Matthew A. Bowker
Human factors used to estimate and forecast water supply and demand in the Delaware River Basin Human factors used to estimate and forecast water supply and demand in the Delaware River Basin
The objective of this report by the U.S. Geological Survey is to identify cultural and economic determinants of water demand, supply, and access, and to locate associated datasets of those determinants. Although climate and its influence on hydrology are important components of water availability, this study focused only on the components of the human system. The Delaware River Basin...
Authors
Nicole M. Herman-Mercer, Veronica Y. Romero, Diana L. Restrepo-Osorio, Megan K. Hines, Lucas S. Bair
First application of a coastal-dune model (AeoLiS) to simulate fluvial-aeolian morphodynamics First application of a coastal-dune model (AeoLiS) to simulate fluvial-aeolian morphodynamics
Quantifying aeolian processes is important to decision-making in river management and for optimizing strategies for ecosystem conservation, natural resource management, and recreation. We applied the AeoLiS aeolian transport model, originally developed for coastal environments, to a dryland river corridor to evaluate its ability to simulate sediment dynamics in a fluvial-aeolian system...
Authors
Madeline Margaret Kelley, Joel B. Sankey, Nicholas Cohn, Amy E. East, Alan Kasprak, Helen C. Fairley, Joshua Caster, B. van Westen
DRIFteRS: A dataset of drift invertebrate densities in streams and rivers across western North America, 1997–2024 DRIFteRS: A dataset of drift invertebrate densities in streams and rivers across western North America, 1997–2024
Prey availability is among the most influential and highly variable determinants of fish growth and freshwater habitat carrying capacity, yet it remains understudied compared to physical habitat variables (Ouellet et al., 2025; Rosenfeld et al., 2014; Weber et al., 2017). We often lack a clear understanding of how much food is available to fishes, how it varies spatially and temporally...
Authors
Elsa K. Toskey, Toshio Matsuoka, Peter M. Kiffney, Sean M. Naman, Martin C. Liermann, Javan Bailey, David Beauchamp, J. Ryan Bellmore, Christopher A. Binckley, Steven C. Blumenshine, Timothy J. Caldwell, Michael P. Carey, Shannon Claeson, Chelsea Clawson, Rosa Cox, Cromwell. Kara J., Robert J. Danehy, Michael J. Dodrill, Jeffrey J. Duda, Jason B. Fellman, Adrianne Z. Grimm, Tyson B. Hallbert, Chris E. Jordan, Ernest R. Keeley, Brian P. Kennedy, Theodore Kennedy, Andre E. Kohler, Erin D. Lowery, Kate H Macneale, Kyle D. Martens, Sarah A. Morley, Jeffrey Muehlbauer, Jason B. Neuswanger, Alison O'Dowd, Shelley Pneh, Mary E. Power, Suzanne J. Rhoades, Jordan Rosenfeld, Gabriel Rossi, Beth L. Sanderson, Katy K. Shelby, Thomas Starky-Owens, Jamie N. Thompson, Carol Volk, Jasmine S. Williamshen, Robert W. Wisseman
At the edge of change: Native Phragmites persistence and nonnative arrival along the dam-regulated Colorado River At the edge of change: Native Phragmites persistence and nonnative arrival along the dam-regulated Colorado River
Premise
Authors
Emily C. Palmquist, Joel B. Sankey, Claudia DiMartini, Tanyan Benson, Brooke Damon, Helen C. Fairley, Bradley J. Butterfield
Core microbiomes as a potential fingerprinting method of Western USA dust sources Core microbiomes as a potential fingerprinting method of Western USA dust sources
Introduction: Changing frequency and intensity of dust emissions impacts ecosystems and human health. Dust carries microbes, nutrients, heavy metals, and other materials that may change environmental biogeochemistry at deposition sites. Identifying dust sources provides key information on where and when mitigation strategies should be employed. However, commonly used geochemical or...
Authors
DeTiare L. Leifi, Sarah C. Peterson, Jakob L. Young, Gregory T. Carling, Janice Brahney, Michael C. Duniway, Beth A. Newingham, Nicholas P. Webb, Travis W. Nauman, Zachary T. Aanderud
Resurvey of the Marble Canyon and Bridge Canyon dam sites in Grand Canyon National Park—Changes in sediment storage and evidence supporting the occurrence of bedrock incision through the mid-20th century Resurvey of the Marble Canyon and Bridge Canyon dam sites in Grand Canyon National Park—Changes in sediment storage and evidence supporting the occurrence of bedrock incision through the mid-20th century
The Bureau of Reclamation developed an extensive plan for a network of dams, water tunnels, and hydropower plants in and around Grand Canyon, Arizona, in the 1940s through 1960s. The two largest of these planned dams were the Marble Canyon and Bridge Canyon Dams on the Colorado River. Though these dams were ultimately never built, Reclamation conducted extensive topographic, bathymetric...
Authors
David J. Topping, Joseph E. Hazel, Matthew A. Kaplinski, Paul E. Grams
Listening for extinction: Range-wide occupancy highlights critical risks and priorities for northern spotted owls Listening for extinction: Range-wide occupancy highlights critical risks and priorities for northern spotted owls
The northern spotted owl (Strix occidentalis caurina) continues to decline across its range, threatened by habitat disturbances and invasive barred owls (Strix varia). We conducted a range-wide spotted owl occupancy assessment using 2.1 million h of passive acoustic recordings from 4081 survey stations within 1027 randomly selected 5-km2 hexagons across six physiographic regions...
Authors
Damon B. Lesmeister, Julianna M.A. Jenkins, Raymond J. Davis, Natalie M. Rugg, Cara L. Appel, Larissa L. Bailey, Erin Bayne, Chestnut Tara, Leila S. Duchac, Katie M. Dugger, Taylor D. Ellis, Alan B. Franklin, Scott A. Gremel, Aaron Henderson, Edward Henson, J. Mark Higley, James E. Hines, Bruce A. Hollen, William L. Kendall, Taal Levi, Darryl I. MacKenzie, Christopher E. McCafferty, Thomas Munger, David Press, Caroline Provost, Suzanne Reffler, Zachary J. Ruff, James K. Swingle, Erica Tevini, Alaina D. Thomas, Matthew J. Weldy, Kirsten Wert, Angela White, Charles B. Yackulic
The effect of solar energy development on plant diversity across spatial scales The effect of solar energy development on plant diversity across spatial scales
Utility-scale solar energy development is a novel and rapidly expanding land-use with largely unknown consequences for plant diversity. Construction disturbance and associated increases in environmental heterogeneity in solar facilities relative to undisturbed ecosystems can affect plant diversity at multiple spatial scales. We assessed the effects of modified construction methods...
Authors
Timothy J. Ohlert, Claire C. Karban, Seth M. Munson, Melinda D. Smith
Future of the Colorado River phase 2: Integrated operation of the Powell/Grand Canyon/Mead segment for water supply, hydropower, and river ecosystems Future of the Colorado River phase 2: Integrated operation of the Powell/Grand Canyon/Mead segment for water supply, hydropower, and river ecosystems
State and federal agencies are negotiating water-supply agreements that may govern water supply and storage in the Colorado River Basin through 2046. Current operating policies in the Colorado River primarily focus on water supply implications with less focus on the potential effects to other resources. Models that forecast the response of multiple resources over the short- and long-term...
Authors
John C. Schmidt, Charles B. Yackulic
Southeastern Utah Federal lands science needs survey Southeastern Utah Federal lands science needs survey
Evidence-based scientific information can help support defensible decision making in the management of public lands. This report sought to identify current (2024–25) Federal agency research needs in southeastern Utah and to synthesize common management challenges and questions across jurisdictional boundaries. We implemented a science needs assessment focused on lands managed by the...
Authors
M. Allison Stegner, Jonathan Argov, Liz A. Ballenger, Kimberly Hartwig, Laura Martin, Gerald I. Wakefield, Rebecca A. Weissinger, Michael C. Duniway
Functional traits can explain coordinated seedling responses to drought and freezing stress Functional traits can explain coordinated seedling responses to drought and freezing stress
Limited plant establishment creates demographic bottlenecks that can alter vegetation trajectories in changing environments, yet it is unclear how common eco-evolutionary indicators of plant strategy shape early response to key stressors. We evaluated how early functional traits, phylogeny, and adult climate niche jointly explain seedling drought and freezing tolerance across 49 semi...
Authors
Julie E. Larson, Bradley J. Butterfield, Seth M. Munson, Dylan F. Neuhaus, Stella M. Copeland