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Adaptation and response in drylands: A dryland research agenda and campaign strategy Adaptation and response in drylands: A dryland research agenda and campaign strategy
Dryland ecosystems cover 41% of Earth's land surfaces, account for 44% of cultivated lands and 60% of food sources, and make large contributions to the global water and carbon cycles. However, these ecosystems are experiencing unprecedented extremes including heatwaves, floods, and droughts as well as hotter temperatures and often declining water resource availability. These ecosystems...
Authors
Andrew F. Feldman, Sasha C. Reed, Konrad Wessels, Dennis S. Ojima, David J.P. Moore, William K. Smith, Niall P. Hanan, Cibele Amaral, Flurin Babst, Joel A. Biederman, Marcy Litvak, Natasha MacBean, Benjamin Poulter, Russell L. Scott, Alicja Babst-Kostecka, Julia K. Green, Raymond F. Kokaly, Ryan Pavlick, Robert Swap, Shawn P. Serbin, Compton J. Tucker, Lixin Wang, Jennifer D. Watts, Alejandro Flores, James Rattling Leaf Sr., Sativa Cruz, Nikki Tulley, Robert A. Washington-Allen, Karen Prentice, Emily Kachergis, Julian Reyes, Jasmine Ryan, Michael D. SanClements, Henry W. Loescher, Allison K. Leidner, Tyson Swetnam
Beaver dam analogs as nature-based solutions to mitigate snowpack loss in northern New Mexico Beaver dam analogs as nature-based solutions to mitigate snowpack loss in northern New Mexico
Reductions in snow have left many streams in northern New Mexico dry or with very low flows during the summer. Base flow, defined as the contribution of groundwater to streamflow, can sustain streamflow during the summer and during drought conditions. Beaver dam analogs can be used to “slow the flow,” or increase the infiltration of rain-based runoff to replenish shallow groundwater...
Authors
David Moeser, Benjamin Linhoff, Justin Nichols, Jake Kurzweil
Triple oxygen isotope compositions of isotopic reference waters: Implications for VSMOW-Scale and VSMOW-SLAP-Scale Δ′¹⁷O calibration Triple oxygen isotope compositions of isotopic reference waters: Implications for VSMOW-Scale and VSMOW-SLAP-Scale Δ′¹⁷O calibration
Triple oxygen isotope ratios of waters are commonly reported on the VSMOW–SLAP scale, whereas comparison with theoretical calculations and assessment of instrumental scale distortion require accurate constraints on the measured isotopic compositions of the primary isotopic reference materials (iRMs) themselves. In particular, the measured δ17OVSMOW and Δ′17OVSMOW values for SLAP and its...
Authors
Ryoji Tanaka, Andreas Pack, Tyler B. Coplen
The impacts of cover crop biomass on satellite-based detectability of cover crops in Maryland The impacts of cover crop biomass on satellite-based detectability of cover crops in Maryland
Cover crop adoption in the U.S. has increased over the past decades, increasing the need to quantify their performance and environmental benefits. While remote sensing (RS)-based approaches for detecting cover crop presence have been developed, there has been limited research on how cover crops with varied biomass and management practices influence detectability. Using unique field-level...
Authors
Yide Xu, Qu Zhou, Kaiyu Guan, Sheng Wang, W. Dean Hively, Jyoti Jennewein, Alison Thieme, Steven B. Mirsky, Zhangliang Chen
The electric vehicle “EV”-crane—A next-generation system for fluvial sediment and water-quality sampling using an electric cart with integrated crane and accessories The electric vehicle “EV”-crane—A next-generation system for fluvial sediment and water-quality sampling using an electric cart with integrated crane and accessories
The U.S. Geological Survey (USGS), with support from the Federal Interagency Sedimentation Project (FISP), developed the electric vehicle (EV)-crane, a modified electric cart equipped with a rigid swivel-mounted crane and integrated accessory holders. The EV-crane was developed to improve the efficiency and safety of fluvial sediment and water-quality sampling from bridges. USGS field...
Authors
Joel T. Groten, J. William Lund, David J. Brannon
Simulation of groundwater flow in the Silurian aquifer, eastern Iowa, 2020–45 Simulation of groundwater flow in the Silurian aquifer, eastern Iowa, 2020–45
The Silurian aquifer is an important water source for municipalities, industry, and rural households and communities in eastern Iowa, including Johnson County. Increasing demand for groundwater from the aquifer indicated that analytical tools may be beneficial to quantify groundwater resources and inform water-management decisions for the aquifer. The U.S. Geological Survey, in...
Authors
Emilia L. Bristow, John M. Gannon, Andrew M. Williams
Comment on “Assessing the potential for Smallmouth Bass population establishment in Grand Canyon” Comment on “Assessing the potential for Smallmouth Bass population establishment in Grand Canyon”
No abstract available.
Authors
Charles B. Yackulic, Drew Elliot Eppehimer, Lindsey A. Bruckerhoff, Anna Amidon, Kevin R. Bestgen, Nathaniel D. Bransky, Kimberly L. Dibble, Maria C. Dzul, Lindsay Erika Hansen, Brian D. Healy, M. Tildon Jones, Chris Michaud
Seasonal trophic dynamics drive growth potential and predation risk for reintroduced Chinook salmon in Shasta Reservoir Seasonal trophic dynamics drive growth potential and predation risk for reintroduced Chinook salmon in Shasta Reservoir
Reservoir ecosystems can significantly affect anadromous salmon populations reintroduced upstream of impassable high-head dams. In this study, we examine how a novel reservoir food web created by an impoundment can limit juvenile growth or survival through the seasonal production or access to food, promote competition for available resources, and affect risk of the food supply or...
Authors
Rachelle Carina Johnson, Claire E. Couch, Rebecca E. Barsky, Candice R. Powers, Chloe E. Pak, Karl D. Stenberg, Jessica O. Diallo, Kimberly A. Larsen, Marshal S. Hoy, David A. Beauchamp, Tobias J. Kock
The surface elevation table and marker horizon technique: A protocol for monitoring wetland elevation dynamics, standard pperating procedures (version 2) The surface elevation table and marker horizon technique: A protocol for monitoring wetland elevation dynamics, standard pperating procedures (version 2)
No abstract available.
Authors
James C. Lynch, Philippe Hensel, Donald R. Cahoon
At the leading edge: Advancing and bridging the science and management of range-shifting species At the leading edge: Advancing and bridging the science and management of range-shifting species
Climate-mediated shifts in species distributions are reshaping ecosystems worldwide, creating major challenges for conservation and resource management. These range shifts have far-reaching ecological and socio-economic consequences, requiring managers to address complex ecological dynamics while navigating diverse regulatory and value systems. Despite growing attention, key gaps remain...
Authors
Lise Comte, Sarah R. Weiskopf, Laura M. Thompson, Jackson Brear Valler, Madeleine A. Rubenstein, Casey C. O'Hara, Aparna Bamzai-Dodson, Abigail J. Lynch, T.J. Clark-Wolf, Ophelie Ocouriot, Solomon Z. Dobrowski, Laura L. Figueroa, Gabriel M. Filippelli, Heather E. Johnson, Meade Krosby, Joshua J. Lawlor, David A. Moeller, Sean A. Parks, Elliott W. Parsons, Jeremy D. Ross, Brett R. Scheffers, Helen R. Sofaer, Erica Francis Stuber, Shawn Carter
Effect of rotenone treatment on alpine stream invertebratecommunities in Colorado Effect of rotenone treatment on alpine stream invertebratecommunities in Colorado
Objective: Introduction of non-native salmonids to western United States streams has resulted in extirpation and even extinction of native cutthroat trout. Once thought to be extinct, a genetically verified population of Greenback Cutthroat Trout (GBCT) Oncorhynchus virginalis stomias was identified and used for population re-establishment efforts. To restore native trout habitat, stream...
Authors
Charles F. Wahl, Robert E. Zuellig, James J. Roberts, Travis S. Schmidt, Andrea Nichole Schuhmann, Janet L. Miller, Matthew P. Fairchild
Effects of a low-lipid diet on the gut microbiome and head kidney transcriptome of juvenile Chinook Salmon Effects of a low-lipid diet on the gut microbiome and head kidney transcriptome of juvenile Chinook Salmon
Objective Pacific salmon Oncorhynchus spp. reared in production hatcheries are typically fed high-lipid, energy-dense diets to achieve large size and high body condition prior to release. In contrast, juveniles in natural environments tend to consume low-lipid, high-protein diets, and fish reared for research or conservation purposes are sometimes fed diets that are formulated to mimic...
Authors
Claire E. Couch, Konstantin Divilov, Crystal L. Herron, Bing Wang, Olivia M. Hakanson, Michelle M. Scanlan, Luke D. Whitman, Melanie J. Davis, Carl B. Schreck, James T. Peterson