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Below are publications associated with the Southwest Biological Science Center's research.

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Filter Total Items: 1332

On connecting hydro-social parameters to vegetation greenness differences in an evolving groundwater-dependent ecosystem

Understanding groundwater-dependent ecosystems (i.e., areas with a relatively shallow water table that plays a major role in supporting vegetation health) is key to sustaining water resources in the western United States. Groundwater-dependent ecosystems (GDEs) in Colorado have non-pristine temporal and spatial patterns, compared to agro-ecosystems, which make it difficult to quantify how these ec
Matthew R. Lurtz, Ryan R. Morrison, Pamela L. Nagler

Effect of water delivery and irrigation for riparian restoration in the Colorado River Delta, Mexico

Along Mexico's arid Colorado River Delta, the riparian corridor lacks water due to a reduction in frequent flows, climate change, human infrastructure, and altered riparian landcover from disturbances to invasive species, fire, and high soil and water salinities, which have led to declines in riparian plant health in recent decades. Restoration efforts focusing on small plots have successfully rev
Pamela L. Nagler, Ibrahima Sall, Martha Gomez-Sapiens, Karl W. Flessa, Armando Barreto-Muñoz, Kamel Didan

Bees of the Buenos Aires National Wildlife Refuge—A preliminary report on a bee survey in a vulnerable semi-desert grassland of the Sonoran Desert

Pollinators are vital to the continued existence and seed production of about 87.5 percent of all flowering plants (Ollerton and others, 2011). In the semi-desert grasslands of Buenos Aires National Wildlife Refuge, in the Sonoran Desert of the United States, flowering forbs provide seed vital to the food base of wildlife, including the 136 species of resident and migratory birds using the Refuge’
Kathryn A. Thomas, Angela M. Hoover, M. Kathryn Busby

Spring 2024 edition

No abstract available.
Laura Cecilia Shriver

Resilience is not enough: Toward a more meaningful rangeland adaptation science

Rangeland ecosystems, and their managers, face the growing urgency of climate change impacts. Researchers are therefore seeking integrative social-ecological frameworks that can enhance adaptation by managers to these climate change dynamics through tighter linkages among multiple scientific disciplines and manager contexts. Social-ecological framings, including resilience and vulnerability, are p
Hailey Wilmer, Daniel B. Ferguson, Maude Dinan, Eric Thacker, Peter B. Adler, Kathryn Bills Walsh, John B. Bradford, Mark Brunson, Justin D. Derner, Emile Elias, Andrew J Felton, Curtis A. Gray, Christina Greene, Mitchel P McClaran, Robert K. Shriver, Mitch Stephenson, Katharine Nash Suding

Dryland soil recovery after disturbance across soil and climate gradients of the Colorado Plateau

Drylands impacted by energy development often require costly reclamation activities to reconstruct damaged soils and vegetation, yet little is known about the effectiveness of reclamation practices in promoting recovery of soil quality due to a lack of long-term and cross-site studies. Here, we examined paired on-pad and adjacent undisturbed off-pad soil properties over a 22-year chronosequence of
Kathryn Delores Eckhoff, Sasha C. Reed, John B. Bradford, Nikita C. Daly, Keven Griffen, Robin H. Reibold, Randi Lupardus, Seth M. Munson, Aarin Sengsirirak, Miguel L. Villarreal, Michael C. Duniway

Combining terrestrial lidar with single line transects to investigate geomorphic change: A case study on the Upper Verde River, Arizona

The Upper Verde River in northern Arizona, USA is a vital resource for the wildlife and humans that rely on its waters. We characterize the riparian corridor topography using terrestrial laser scanner (TLS) data from 2021 to 2022. We also quantify geomorphic changes associated with human and climate-driven alterations in river flow and vegetation changes by combining the contemporary lidar surveys
Lauren Lynn Tango, Temuulen Ts. Sankey, Jackson Leonard, Joel B. Sankey, Alan Kasprak

Biological soil crusts are more prevalent in warmer and drier environments within the Great Basin ecoregion: Implications for managing annual grass invasion

Biological soil crusts (biocrusts) can thrive under environmental conditions that are stressful for vascular plants such as high temperatures and/or extremely low moisture availability. In these settings, and in the absence of disturbance, cover of biocrusts commonly exceeds cover of vascular plants. Arid landscapes are also typically slow to recover from disturbance and prone to altered vegetatio
Lea A. Condon, John B. Bradford, Peter S. Coates

Hotspots of biogeochemical activity linked to aridity and plant traits across global drylands

Perennial plants create productive and biodiverse hotspots, known as fertile islands, beneath their canopies. These hotspots largely determine the structure and functioning of drylands worldwide. Despite their ubiquity, the factors controlling fertile islands under conditions of contrasting grazing by livestock, the most prevalent land use in drylands, remain virtually unknown. Here we evaluated t
David J. Eldridge, Jingyi Ding, Josh Dorrough, Manuel Delgado-Baquerizo, Osvaldo E. Sala, Nicolas Gross, Yoann Le Bagousse-Pinguet, Max Mallen-Cooper, Hugo Saiz, Sergio Asensio, Victoria Ochoa, Beatriz Gozalo, Emilio Guirado, Miguel García-Gómez, Enrique Valencia, Jaime Martínez-Valderrama, César Plaza, Mehdi Abedi, Negar Ahmadian, Rodrigo J. Ahumada, Julio M. Alcántara, Fateh Amghar, Luísa Azevedo, Farah Ben Salem, Miguel Berdugo, Niels Blaum, Bazartseren Boldgiv, Matthew A. Bowker, Donaldo Bran, Chongfeng Bu, Rafaella Canessa, Andrea P. Castillo-Monroy, Ignacio Castro, Patricio Castro-Quezada, Simone Cesarz, Roukaya Chibani, Abel Augusto Conceição, Anthony Darrouzet-Nardi, Yvonne C. Davila, Balázs Deák, Paloma Díaz-Martínez, David A. Donoso, Andrew David Dougill, Jorge Durán, Nico Eisenhauer, Hamid Ejtehadi, Carlos Ivan Espinosa, Alex Fajardo, Mohammad Farzam, Ana Foronda, Jorgelina Franzese, Lauchlan H. Fraser, Juan J. Gaitán, Katja Geissler, Sofía Laura Gonzalez, Elizabeth Gusman-Montalvan, Rosa Mary Hernández, Norbert Hölzel, Frederic Mendes Hughes, Oswaldo Jadan, Anke Jentsch, Mengchen Ju, Kudzai F. Kaseke, Melanie Köbel, Anika Lehmann, Pierre Liancourt, Anja Linstädter, Michelle A. Louw, Quanhui Ma, Mancha Mabaso, Gillian Maggs-Kölling, Thulani P. Makhalanyane, Oumarou Malam Issa, Eugene Marais, Mitchel P McClaran, Betty J. Mendoza, Vincent Mokoka, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Alice Nunes, Gabriel Oliva, Gastón R. Oñatibia, Brooke B. Osborne, Guadalupe Peter, Margerie Pierre, Yolanda Pueyo, R. Emiliano Quiroga, Sasha C. Reed, Ana Rey, Pedro J. Rey, Víctor Manuel Reyes Gómez, Víctor Rolo, Matthias C. Rillig, Peter C. le Roux, Jan Christian Ruppert, Ayman Salah, Phokgedi Julius Sebei, Anarmaa Sharkhuu, Ilan Stavi, Colton R. A. Stephens, Alberto L. Teixido, Andrew David Thomas, Katja Tielbörger, Silvia Torres Robles, Samantha K. Travers, Orsolya Valkó, Liesbeth van den Brink, Frederike Velbert, Andreas von Heßberg, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Laura Yahdjian, Eli Zaady, Yuanming Zhang, Xiaobing Zhou, Fernando T. Maestre

Modeling the impacts of Glen Canyon Dam operations on Colorado River resources

At the time of this report, the Bureau of Reclamation (Reclamation) is writing two supplemental Environmental Impact Statements (sEIS ) and a new Environmental Impact Statement (EIS) that will analyze the effects of changing water flow out of Glen Canyon Dam (GCD) (U.S. Department of Interior, 2024). These actions have the potential to affect downstream resources, including threatened and endanger
Charles Yackulic, Lucas Bair, Drew Elliot Eppehimer, Gerard Lewis Salter, Bridget Deemer, Bradley J. Butterfield, Alan Kasprak, Joshua Caster, Helen C. Fairley, Paul Grams, Bryce Anthony Mihalevich, Emily C. Palmquist, Joel B. Sankey

Fishes move to transient local refuges, not persistent landscape refuges during river drying experiment

Anthropogenically driven flow intermittency is increasing in freshwater streams, with important implications for the management and conservation of aquatic ecosystems. Because most freshwater fishes are mobile, they are expected to emigrate from intermittent reaches, but this may not be true in streams transitioning from perennial to intermittent. Here, we attempt to determine if riverine fishes v
Thomas P Archdeacon, Eric J. Gonzales, Charles Yackulic

Estimating migration timing and abundance in partial migratory systems by integrating continuous antenna detections with physical captures

Many populations migrate between two different habitats (e.g. wintering/foraging to breeding area, mainstem–tributary, river–lake, river–ocean, river–side channel) as part of their life history. Detection technologies, such as passive integrated transponder (PIT) antennas or sonic receivers, can be placed at boundaries between habitats (e.g. near the confluence of rivers) to detect migratory movem
Maria C. Dzul, William L. Kendall, Charles Yackulic, D.R. Van Haverbeke, P. Mackinnon, K. Young, M. Pillow, Joseph E Thomas