A simple approach to modeling light attenuation in the Sacramento-San Joaquin Delta using commonly available data
Emily T. Richardson, Keith Bouma-Gregson, Katy O’Donnell, Brian A. Bergamaschi
2023, San Francisco Estuary and Watershed Sciences (21)
The diffuse attenuation coefficient of photosynthetically active radiation (KdPAR) is commonly used to predict light attenuation in aquatic productivity models, but obtaining measurements of PAR to compute KdPAR is difficult. In situ calculations of KdPAR require multiple measurements of PAR through the...
The smaller, the better? First evaluation of growth and mortality in crayfish internally tagged with p-Chips
Augusto F. Huber, Wesley A. Fitzsimmons, Jacob Thomas Westhoff
2023, Journal of Crustacean Biology (43)
Small-bodied aquatic animals present a challenge to researchers seeking to uniquely mark individuals for scientific study. Microtransponder tags, such as p-Chips, represent the smallest electronic animal tags available to meet this need. The use of p-Chips to tag freshwater crayfishes, however, has not been explored. The goal of this study,...
Arctic-boreal lakes of interior Alaska dominated by contemporary carbon
Fenix Garcia-Tigreros, Clayton D. Elder, Martin R. Kurek, Benjamin L. Miller, Xiaomei Xu, Kimberly Wickland, Cluadia I. Czimczik, Mark M. Dornblaser, Robert G. Striegl, Ethan D. Kyzivat, Laurence C. Smith, Robert G.M. Spencer, Charles E. Miller, David Butman
2023, Environmental Research Letters (18)
Northern high-latitude lakes are critical sites for carbon processing and serve as potential conduits for the emission of permafrost-derived carbon and greenhouse gases. However, the fate and emission pathways of permafrost carbon in these systems remain uncertain. Here, we used the natural abundance of radiocarbon to identify and trace the...
Response of Tiger Salamanders (Ambystoma t. tigrinum) to wetland restoration in a midwestern agricultural landscape, U.S.A.
Paul E. Bartelt, Alyse T. Devries, Robert W. Klaver
2023, Ichthyology & Herpetology (111) 571-583
Since the early 1990s, > 3,000 ha of wetlands (and adjacent prairie) have been restored on the row-crop agricultural landscape of Winnebago County, Iowa, U.S.A. From 2014–2016, we surveyed 45 wetlands among 19 easements for occupancy by Eastern Tiger Salamanders (Ambystoma tigrinum tigrinum) and used radio-telemetry to measure their patterns...
Evaluating management alternatives for Wyoming elk feedgrounds in consideration of chronic wasting disease
Jonathan D. Cook, Paul C. Cross, Emily M. Tomaszewski, Eric K. Cole, Evan H. Campbell Grant, James M. Wilder, Michael C. Runge
2023, Open-File Report 2023-1015
Executive SummaryThe authors used decision and modeling analyses to evaluate management alternatives for a decision on whether to permit Cervus canadensis (elk) feeding on two sites on Bridger-Teton National Forest, Dell Creek and Forest Park. Supplemental feeding of elk could increase the transmission of chronic wasting disease (CWD) locally and...
Less is more: Less herbicide does more when biological control is present in Pontederia crassipes
Linhao Xu, Ashley B.C. Goode, Philip W. Tipping, Melissa C. Smith, Lyn A. Gettys, Brittany K. Knowles, Eileen Pokorny, Luz Salinas, Don DeAngelis
2023, Ecological Modelling (487)
An experiment along with simulation modeling was applied to study the combinations of herbicide treatment and biological control that best limit invasive water hyacinth (Pontederia crassipes, formerly Eichhornia crassipes) in freshwater aquatic systems. The experiment consisted of 14 different treatments of P. crassipes in...
Recharge estimation approach in a data-scarce semi-arid region, Northern Ethiopian Rift Valley
Sisay Simachew Mekonen, Scott E. Boyce, Abdella K. Mohammed, Lorraine E. Flint, Alan L Flint, Markus Disse
2023, Sustainability (15)
Sustainable management of groundwater resources highly relies on the accurate estimation of recharge. However, accurate recharge estimation is a challenge, especially in data-scarce regions, as the existing models are data-intensive and require extensive parameterization. This study developed a process-based hydrologic model combining local and remotely sensed data for characterizing recharge...
Carbon dioxide (CO2) gas and eDNA monitoring as tools for eradicating invasive fish from anchialine pools in Hawai‘i
Robert W. Peck, Maya Munnstermann, Malia Hayes, Carter T. Atkinson, Sallie Beavers, Aaron R. Cupp, Paul C. Banko
2023, Management of Biological Invasions (14) 749-774
Invasive fish can profoundly affect communities they invade. In Hawai‘i, invasive fishes have become established in many anchialine pools, threatening the persistence of resident invertebrates, including several endangered species. Tools to eradicate invasive fishes from these pools are lacking. This study tested the efficacy of carbon dioxide (CO2) gas diffused...
Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability
Amanda S. Cicchino, Alisha A. Shah, Brenna R. Forester, Jason Dunham, N. LeRoy Poff, Cameron K. Ghalambor, W. Chris Funk
2023, Ecosphere (14)
Adaptive plasticity in thermal tolerance traits may buffer organisms against changing temperatures, making such responses of particular interest in the face of global climate change. Although population variation is integral to the evolvability of this trait, many studies inferring proxies of physiological vulnerability from...
Expanding our view of the cold-water coral niche and accounting of the ecosystem services of the reef habitat
Erik E. Cordes, Amanda Demopoulos, Andrew J. Davies, Ryan Gasbarro, Alexandria C. Rhoads, Elizabeth Loebeker, Derek Sowers, Jason Chaytor, Cheryl L. Morrison, Alexis M. Weinnig, Sandra Brooke, Jay J. Lunden, Furu Mienis, Samantha B. Joye, Andrea M. Quattrini, Tracey T. Sutton, Catherine S. McFadden, Jill R. Bourque, Jennifer McClain Counts, Brian D. Andrews, Melissa J. Betters, Peter J. Etnoyer, Gary A. Wolff, Bernie B. Bernard, James M. Brooks, Michael K. Rasser, Caitlin Adams
2023, Scientific Reports (13)
Coral reefs are iconic ecosystems that support diverse, productive communities in both shallow and deep waters. However, our incomplete knowledge of cold-water coral (CWC) niche space limits our understanding of their distribution and precludes a complete accounting of the ecosystem services they provide. Here, we present...
Expanding our view of the cold-water coral niche and accounting of the ecosystem services of the reef habitat
Erick E. Cordes, Amanda Demopoulos, Andrew Davies, Ryan Gasbarro, Alexandria Rhoads, Elizabeth Lobecker, Dereck Sowers, Jason Chaytor, Cheryl L. Morrison, Alexis Marie Weinnig, Sandra Brooke, Jay J. Lunden, Furu Mienis, Samantha B. Joye, Andrea M. Quattrini, Tracey Sutton, Catherine McFadden, Jill R. Bourque, Jennifer McClain Counts, Brian D. Andrews, Melissa Betters, Peter Etnoyer, Gary Wolff, Bernie Bernard, James Brooks, Michael Rasser, Caitlin Adams
2023, Scientific Reports (13)
Coral reefs are iconic ecosystems that support diverse, productive communities in both shallow and deep waters. However, our incomplete knowledge of cold-water coral (CWC) niche space limits our understanding of their distribution and precludes a complete accounting of the ecosystem services they provide. Here, we present...
Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought
Hudson Northrop, Jodi N. Axelson, Adrian Das, Nathan L. Stephenson, Emilio Vilanova, Scott L. Stephens, John J. Battles
2023, Forest Ecology and Management (551)
Forest die-backs linked to extreme droughts are expected to increase as the climate dries and warms. An example is the 2012-2016 hotter drought in California that induced widespread tree mortality in the Sierra Nevada, California. The sudden increase in snags (i.e., standing dead trees) raised immediate concerns about their impact...
Alternative lifestyles: A plague persistence hypothesis
Jeffrey Wimsatt, David A. Eads, Marc R. Matchett, Dean E. Biggins
2023, Ecosphere (14)
Several explanations have been posited for how the plague bacterium (Yersinia pestis) reemerges during sylvatic cycles within the same foci over many years, and often without direct evidence of host die-offs. One prevalent view is that transmission-optimized Y. pestis bacteria, exhibiting epizootic/enzootic behavior, almost continually replicate and survive through repeated, linked, host-centered...
Extinction risk modeling predicts range-wide differences of climate change impact on Karner blue butterfly (Lycaeides melissa samuelis)
Yudi Li, David Wilson, Ralph Grundel, Steven Campbell, Joe Knight, Jim Perry, Jessica J. Hellmann
2023, PLoS ONE (18)
The Karner blue butterfly (Lycaeides melissa samuelis, or Kbb), a federally endangered species under the U.S. Endangered Species Act in decline due to habitat loss, can be further threatened by climate change. Evaluating how climate shapes the population trend of the Kbb can help in the...
Probabilistic source classification of large tephra producing eruptions using supervised machine learning: An example from the Alaska-Aleutian arc
Jordan Edward Lubbers, Matthew W. Loewen, Kristi L. Wallace, Michelle L. Coombs, Jason A. Addison
2023, Geochemistry, Geophysics, Geosystems (24)
Alaska contains over 130 volcanoes and volcanic fields that have been active within the last 2 million years. Of these, roughly 90 have erupted during the Holocene, with many characterized by at least one large explosive eruption. These large tephra-producing eruptions (LTPEs) generate orders of magnitude more...
Preliminary documentation of coseismic ground failure triggered by the February 6, 2023 Türkiye earthquake sequence
Tolga Gorum, Hakan Tanyas, Furkan Karabacak, Abdussamet Yilmaz, Serkan Girgin, Kate E. Allstadt, M. Lutfi Suzen, Paula Madeline Burgi
2023, Engineering Geology (327)
The devastating Kahramanmaraş earthquake sequence occurred on February 6, 2023. Two main events, Mw 7.8 and Mw 7.5 occurred 9 hours apart, affected 11 cities in Turkey, and subjected an area of ∼90,000 km2 to shaking levels known to trigger landslides (peak ground acceleration > 0.08 g). Extensive landsliding was expected given the hilly terrain affected by...
Spatially interactive modeling of land change identifies location-specific adaptations most likely to lower future flood risk
Georgina M. Sanchez, Anna Petrasova, Megan M. Skrip, Elyssa Collins, Margaret A. Lawrimore, John B. Vogler, Adam Terando, Jelena Vukomanovic, Helena Mitasova, Ross K. Meentemeyer
2023, Scientific Reports (13)
Impacts of sea level rise will last for centuries; therefore, flood risk modeling must transition from identifying risky locations to assessing how populations can best cope. We present the first spatially interactive (i.e., what happens at one location affects another) land change model (FUTURES 3.0) that can probabilistically predict urban...
Evaluating a tandem human-machine approach to labelling of wildlife in remote camera monitoring
Laurence A. Clarfeld, Alexej P.K. Sirén, Brendan M. Mulhall, Tammy L. Wilson, Elena Bernier, John Farrell, Gus Lunde, Nicole Hardy, Katherine D. Gieder, Robert Abrams, Sue Staats, Scott McLellan, Therese M. Donovan
2023, Ecological Informatics (77)
Remote cameras (“trail cameras”) are a popular tool for non-invasive, continuous wildlife monitoring, and as they become more prevalent in wildlife research, machine learning (ML) is increasingly used to automate or accelerate the labor-intensive process of labelling (i.e., tagging) photos. Human-machine hybrid tagging approaches have been shown to greatly increase...
Trade-offs in adapting to changes in climate, land use, and water availability in California
Nathan D. Van Schmidt, Tamara Wilson, Lorraine E. Flint, R. Langridge
2023, Ecology and Society (28)
Changes in land use and land cover, water systems, and climate are inextricably linked, and their combined stresses have had severe impacts in many regions worldwide. Integrated adaptation planning can support adaptive capacity by helping institutions manage land and water resources at regional to local scales. Linkages between these stressors...
Monitoring population-level foraging distribution of a marine migratory species from land: Strengths and weaknesses of the isotopic approach on the Northwest Atlantic loggerhead turtle aggregation
Simona A. Ceriani, Susan Murasko, David S. Addison, David Anderson, Greg Curry, Nicole A. Desjardin, Scott F. Eastman, Daniel R. Evans, Nancy Evou, Mariana M.P.B. Fuentes, Matthew H. Godfrey, Kristen Hart, Paul Hillbrand, Sarah E. Hirsch, Cody R. Mott, Katherine L. Mansfield, Kristen T. Mazzarella, Sarah V. Norris, S. Michelle Pate, Katrina F. Phillips, Kirt W. Rusenko, Brian M. Shamblin, Amber Stevenson, Kelly A. Sloan, Anton D. Tucker, Ryan C. Welsh, Paolo Casale
2023, Frontiers in Marine Science (10)
Assessing the linkage between breeding and non-breeding areas has important implications for understanding the fundamental biology of and conserving animal species. This is a challenging task for marine species, and in sea turtles a combination of stable isotope analysis (SIA) and satellite telemetry has been increasingly used. The Northwest...
Using high-frequency monitoring data to quantify city-wide suspended-sediment load and evaluate TMDL goals
Samuel Adam Miller, James S. Webber, John D. Jastram, Marcus F Aguilar
2023, Environmental Monitoring and Assessment (195)
Excess sediment is a common reason water bodies in the USA become listed as impaired resulting in total maximum daily loads (TMDL) that require municipalities to invest millions of dollars annually on management practices aimed at reducing suspended-sediment loads (SSLs), yet monitoring data are rarely used...
Stony coral tissue loss disease accelerated shifts in coral composition and declines in reef accretion potential in the Florida Keys
Lauren T. Toth, Travis A. Courtney, Michael A. Colella, Robert R. Ruzicka
2023, Frontiers in Marine Science (10)
Outbreaks of coral disease have been a dominant force shaping western Atlantic coral-reef assemblages since the late 1970s. Stony coral tissue loss disease (SCTLD) is nonetheless having an unprecedented impact in the region. Whereas numerous studies over the last decade have worked to characterize this novel pathogen and its...
Evolutionary and ecological correlates of thiaminase in fishes
Freya Elizabeth Rowland, Cathy A. Richter, Donald E Tillitt, David Walters
2023, Scientific Reports (13)
Thiamine (vitamin B1) is required by all living organisms in multiple metabolic pathways. It is scarce in natural systems, and deficiency can lead to reproductive failure, neurological issues, and death. One major cause of thiamine deficiency is an overreliance on diet items containing the enzyme thiaminase. Thiaminase activity has been...
Submersed macrophyte density regulates aquatic greenhouse gas emissions
Meredith E. Theus, Nicholas E. Ray, Sheel Bansal, Meredith A. Holgerson
2023, JGR Biogeosciences (128)
Shallow freshwater ecosystems emit large amounts of greenhouse gases (GHGs), such as carbon dioxide (CO2) and methane (CH4), yet emissions are highly variable. The role that aquatic macrophytes play in regulating aquatic GHG emissions is uncertain despite their ability to dominate shallow waterbodies. Here, we studied the...
An integrated framework for examining groundwater vulnerability in the Mekong River Delta region
Kathryn Powlen, Saira M. Haider, Kyle W. Davis, Nina Burkardt, Sachin D. Shah, Stephanie Romanach, Matthew E. Andersen
2023, PLoS ONE (10)
The Mekong River provides water, food security, and many other valuable benefits to the more than 60 million Southeast Asian residents living within its basin. However, the Mekong River Basin is increasingly stressed by changes in climate, land cover, and infrastructure. These changes can affect water...
