Publications
Below are publications associated with the Southwest Biological Science Center's research.
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Filter Total Items: 1512
Riparian plant evapotranspiration and consumptive use for selected areas of the Little Colorado River watershed on the Navajo Nation Riparian plant evapotranspiration and consumptive use for selected areas of the Little Colorado River watershed on the Navajo Nation
Estimates of riparian vegetation water use are important for hydromorphological assessment, partitioning within human and natural environments, and informing environmental policy decisions. The objectives of this study were to calculate the actual evapotranspiration (ETa) (mm/day and mm/year) and derive riparian vegetation annual consumptive use (CU) in acre-feet (AF) for select riparian...
Authors
Pamela L. Nagler, Armando Barreto-Muñoz, Ibrahima Sall, Matthew R. Lurtz, Kamel Didan
Restoration research actions to address rapid change in drylands: Insights from the Colorado Plateau Restoration research actions to address rapid change in drylands: Insights from the Colorado Plateau
The rapid intensification of ecological extremes in response to climate change and human land use is perhaps nowhere more apparent than in drylands, including the semiarid region of the Colorado Plateau in the southwestern United States. Here, we describe research directions to aid in the restoration of Colorado Plateau ecosystems during the UN Decade on Ecosystem Restoration (2021–2030)...
Authors
Kristina E. Young, Brooke Bossert Osborne, Michala Lee Phillips, Daniel E. Winkler
Divergent climate impacts on C3 versus C4 grasses imply widespread 21st century shifts in grassland functional composition Divergent climate impacts on C3 versus C4 grasses imply widespread 21st century shifts in grassland functional composition
Aim Grasslands cover a third of Earth's landmass and provide critical ecosystem services. Anticipating how perennial C3 (cool-season) and C4 (warm-season) grasses respond to climate change will be key to predicting future composition and functioning of grasslands. Here, we evaluate environmental drivers of C3 and C4 perennial distributions and assess how C3 and C4 grass distributions...
Authors
Caroline A. Havrilla, John B. Bradford, Charles Yackulic, Seth M. Munson
Terrestrial lidar monitoring of the effects of Glen Canyon Dam operations on the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010–2020 Terrestrial lidar monitoring of the effects of Glen Canyon Dam operations on the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010–2020
The U.S. Geological Survey’s Grand Canyon Monitoring and Research Center, in coordination with the Glen Canyon Dam Adaptive Management Program, has monitored the geomorphic condition of select archaeological sites along the Colorado River in Grand Canyon using high-resolution terrestrial light detection and ranging (lidar) topographic surveys. Many of these sites are vulnerable to...
Authors
Joshua Caster, Joel B. Sankey, Helen Fairley, Alan Kasprak
Empirical evidence for effects of invasive American Bullfrogs on occurrence of native amphibians and emerging pathogens Empirical evidence for effects of invasive American Bullfrogs on occurrence of native amphibians and emerging pathogens
Invasive species and emerging infectious diseases are two of the greatest threats to biodiversity. American Bullfrogs (Rana [Lithobates] catesbeiana), which have been introduced to many parts of the world, are often linked with declines of native amphibians via predation and spreading emerging pathogens such as amphibian chytrid fungus (Batrachochytrium dendrobatidis [Bd]) and...
Authors
Blake R. Hossack, Emily B Oja, Audrey K Owens, David L. Hall, Cassidi Cobos, Catherine L. Crawford, Caren S. Goldberg, Shaula Hedwell, Paige E. Howell, Julio A. Lemos-Espinal, Susan K MacVean, Magnus McCaffery, Cody Mosley, Erin L. Muths, Brent H. Sigafus, Micahel J Sredl, James C. Rorabaugh
Provenance, genotype, and flooding influence growth and resource acquisition characteristics in a clonal, riparian shrub Provenance, genotype, and flooding influence growth and resource acquisition characteristics in a clonal, riparian shrub
Premise Riparian plants can exhibit intraspecific phenotypic variability across the landscape related to temperature and flooding gradients. Phenotypes that vary across a climate gradient are often partly genetically determined and may differ in their response to inundation. Changes to inundation patterns across a climate gradient could thus result in site-specific inundation responses...
Authors
Emily C. Palmquist, Kiona Ogle, Thomas G. Whitham, Gerard J. Allan, Patrick B. Shafroth, Bradley J. Butterfield
The influence of drying on the aeolian transport of river-sourced sand The influence of drying on the aeolian transport of river-sourced sand
Transgression and regression of water levels (stages) have impacted the evolution of aeolian landforms and sedimentary deposits throughout geologic history. We studied this phenomenon over a five-day period of reduced flow on the Colorado River in Grand Canyon National Park, AZ, USA, in March 2021. These transient low flows exposed river-channel sand deposits to the air, causing...
Authors
Joel B. Sankey, Joshua Caster, Alan Kasprak, Helen C. Fairley
Impeding access to tributary spawning habitat and releasing experimental fall-timed floods increases brown trout immigration into a dam's tailwater Impeding access to tributary spawning habitat and releasing experimental fall-timed floods increases brown trout immigration into a dam's tailwater
River ecosystems have been altered by flow regulation and species introductions. Regulated flow regimes often include releases designed to benefit certain species or restore ecosystem processes, and invasive species suppression programs may include efforts to restrict access to spawning habitat. The impacts of these management interventions are often uncertain. Here, we assess hypotheses...
Authors
Brian D. Healy, Charles Yackulic, Robert C. Schelly
Grazing and ecosystem service delivery in global drylands Grazing and ecosystem service delivery in global drylands
Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that interactions between grazing pressure...
Authors
Fernando T. Maestre, Yoann Le Bagousse-Pinguet, Manuel Delgado-Baquerizo, David J. Eldridge, Hugo Saiz, Miguel Berdugo, Beatriz Gozalo, Victoria Ochoa, Emilio Guirado, Miguel García-Gómez, Enrique Valencia, Juan J. Gaitan, Sergio Asensio, Betty J. Mendoza, Cesar Plaza, Paloma Diaz-Martinez, Ana Rey, Hang-Wei Hu, Ji-Zheng He, Jun-Tao Wang, Anika Lehmann, Matthias C. Rillig, Simone Cesarz, Nico Eisenhauer, Jaime Martinez-Valderrama, Eduardo Moreno-Jimenez, Osvaldo E. Sala, Mehdi Abedi, Negar Ahmadian, Concepcion L. Alados, Valeria Aramayo, Fateh Amghar, Tulio Arredondo, Rodrigo J. Ahumada, Khadijeh Bahalkeh, Farah Ben Salem, Niels Blaum, Bazartseren Boldgiv, Matthew A. Bowker, Donaldo Bran, Chongfeng Bu, Rafaella Canessa, Andrea P. Castillo-Monroy, Helena Castro, Ignacio Castro, Patricio Castro-Quezada, Roukaya Chibani, Abel A. Conceição, Courtney M. Currier, Anthony Darrouzet-Nardi, Balazs Deak, David A. Donoso, Andrew J. Dougill, Jorge Duran, Batdelger Erdenetsetseg, Carlos I. Espinosa, Alex Fajardo, Mohammad Farzam, Daniela Ferrante, Anke S. K. Frank, Lauchlan H. Fraser, Laureano A. Gherardi, Aaron C. Greenville, Carlos A. Guerra, Elizabeth Gusmán-Montalvan, Rosa M. Hernández-Hernández, Norbert Holzel, Elisabeth Huber-Sannwald, Frederic M. Hughes, Oswaldo Jadan-Maza, Florian Jeltsch, Anke Jentsch, Kudzai F. Kaseke, Melanie Kobel, Jessica E. Koopman, Cintia V. Leder, Anja Linstadter, Peter C. le Roux, Xinkai Li, Pierre Liancourt, Jushan Liu, Michelle A. Louw, Gillian Maggs-Kolling, Thulani P. Makhalanyane, Oumarou Malam Issa, Antonio J. Manzaneda, Eugene Marais, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Alice Nunes, Gabriel Oliva, Gastón R. Oñatibia, Guadalupe Peter, Marco O. D. Pivari, Yolanda Pueyo, R. Emiliano Quiroga, Soroor Rahmanian, Sasha C. Reed, Pedro J. Rey, Benoit Richard, Alexandra Rodriguez, Víctor Rolo, Juan G. Rubalcaba, Jan C. Puppert, Ayman Salah, Max A. Schuchardt, Sedona Spann, Ilan Stavi, Colton R. A. Stephens, Anthony M. Swemmer, Alberto L. Teixido, Andrew D. Thomas, Heather L. Throop, Katja Tielborger, Samantha K. Travers, James Val, Orsolya Valko, Liesbeth van den Brink, Sergio Velasco Ayuso, Frederike Velbert, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Laura Yahdjian, Eli Zaady, Yuanming Zhang, Xiaobing Zhou, Brajesh K. Singh, Nicolas Gross
A review of current capabilities and science gaps in water supply data, modeling, and trends for water availability assessments in the Upper Colorado River Basin A review of current capabilities and science gaps in water supply data, modeling, and trends for water availability assessments in the Upper Colorado River Basin
The Colorado River is a critical water resource in the southwestern United States, supplying drinking water for 40 million people in the region and water for irrigation of 2.2 million hectares of land. Extended drought in the Upper Colorado River Basin (UCOL) and the prospect of a warmer climate in the future pose water availability challenges for those charged with managing the river...
Authors
Fred D. Tillman, Natalie K. Day, Matthew P. Miller, Olivia L. Miller, Christine Rumsey, Daniel Wise, Patrick C. Longley, Morgan C. McDonnell
Exploring the role of cryptic nitrogen fixers in terrestrial ecosystems: A frontier in nitrogen cycling research Exploring the role of cryptic nitrogen fixers in terrestrial ecosystems: A frontier in nitrogen cycling research
Biological nitrogen fixation represents the largest natural flux of new nitrogen (N) into terrestrial ecosystems, providing a critical N source to support net primary productivity of both natural and agricultural systems. When they are common, symbiotic associations between plants and bacteria can add more than 100 kg N ha−1 y−1 to ecosystems. Yet, these associations are uncommon in many
Authors
Cory Cleveland, Carla R. G. Reis, Steven S. Perakis, Katherine A Dynarski, Sarah Batterman, Timothy Crews, Maga Gei, Michael J. Gundale, Duncan Menge, Mark Peoples, Sasha C. Reed, Verity Salmon, Fiona M. Soper, Benton Taylor, Monica Turner, Nina Wurzburger
Spatial and temporal patterns in Arctic mosquito abundance Spatial and temporal patterns in Arctic mosquito abundance
Organisms that undergo a shift in ontogeny and habitat type often change their spatial distribution throughout their life cycle, but how this affects population dynamics remains poorly understood.We examined spatial and temporal patterns in Aedes nigripes abundance, a widespread univoltine Arctic mosquito species (Diptera: Culicidae), hypothesizing that the spatial distribution of adults...
Authors
Melissa H DeSiervo, Rebecca A Finger-Higgens, Matthew P. Ayres, Ross A Virginia, Lauren E Culler