Precision of headwater stream permanence estimates from a monthly water balance model in the Pacific Northwest, USA
Konrad Hafen, Kyle W. Blasch, Paul E. Gessler, Roy Sando, Alan H. Rea
2022, Water (14)
Stream permanence classifications (i.e., perennial, intermittent, ephemeral) are a primary consideration to determine stream regulatory status in the United States (U.S.) and are an important indicator of environmental conditions and biodiversity. However, at present, no models or products adequately describe surface water presence for regulatory determinations. We modified the Thornthwaite...
Forest cover lessens the impact of drought on streamflow in Puerto Rico
Jazlynn S. Hall, Martha A. Scholl, Yuri Gorokhovich, Maria Uriarte
2022, Hydrological Processes (36)
Tropical regions are experiencing high rates of forest cover loss coupled with changes in the volume and timing of rainfall. These shifts can compromise streamflow and water provision, highlighting the need to identify how forest cover influences streamflow generation under variable rainfall conditions. Although rainfall is the key driver of...
Quantifying large-scale continental shelf margin growth and dynamics across mid-Cretaceous Arctic Alaska with detrital zircon U-Pb dating
Richard O. Lease, David W. Houseknecht, Andrew R. C. Kylander-Clark
2022, Geology (50) 620-625
Sequence stratigraphy provides a unifying framework for integrating diverse observations to interpret sedimentary basin evolution; however, key time assumptions about stratigraphic elements spanning hundreds of kilometers are rarely quantified. We integrate new detrital zircon U-Pb (DZ) dates from 28 samples with seismic mapping to establish a chronostratigraphic framework across 800...
Dual resistance to Flavobacterium psychrophilum and Myxobolus cerebralis in rainbow trout (Oncorhynchus mykiss, Walbaum)
Brian W. Avila, Dana L. Winkelman, Eric R. Fetherman
2022, Journal of Fish Diseases (45) 801-813
Aquatic pathogens are a major concern for fish hatchery production, fisheries management, and conservation, and disease control needs to be addressed. Two important salmonid pathogens are Myxobolus cerebralis and Flavobacterium psychrophilum that cause whirling disease and bacterial coldwater disease (BCWD), respectively. Innate disease resistance is a potential option for...
Multi-scale patterns in occurrence of an ephemeral pool-breeding amphibian
Brian J. Halstead, Jonathan P. Rose, Denise Clark, Patrick M. Kleeman, Robert N. Fisher
2022, Ecosphere (13)
Species distributions are governed by processes occurring at multiple spatial scales. For species with complex life cycles, the needs of all life stages must be met within the dispersal limitations of the species. Multi-scale processes can be particularly important for these species, where small-scale patterns in specific habitat components can...
Power analysis for detecting the effects of best management practices on reducing nitrogen and phosphorus fluxes to the Chesapeake Bay watershed, USA
Paul McLaughlin, Richard Alexander, Joel D. Blomquist, Olivia H. Devereux, Gregory E. Noe, Tyler Wagner, Kelly L. Smalling
2022, Ecological Indicators (136) 1-12
In 2010 the U.S. Environmental Protection Agency established the Total Maximum Daily Load (TMDL) which is a “pollution diet” that aims to reduce the amount of nitrogen and phosphorus entering the Chesapeake Bay, the largest estuary in the United States, by 25 and 24% percent, respectively. To achieve this goal...
A novel application of hierarchical modelling to decouple sampling artifacts from socio-ecological effects on poaching intensity
Mahmood Soofi, Ali T. Qashqaei, Jan-Niklas Trei, Shirko Shokri, Javad Selyari, Benjamin Ghasemi, Poorya Sepahvand, Lukas Egli, Bagher Nezami, Navid Zamani, Gholam Hosein Yusefi, Bahram H. Kiabi, Niko Balkenhol, J. Andrew Royle, Chris R. Pavey, Steve M. Redpath, Matthias Waltert
2022, Biological Conservation (267) 1-12
Poaching is a global driver of wildlife population decline, including inside protected areas (PAs). Reducing poaching requires an understanding of its cryptic drivers and accurately quantifying poaching scales and intensity. There is little quantification of how poaching is affected by law enforcement intensity (e.g., ranger stations) versus economic factors (e.g.,...
Contrasting Common Era climate and hydrology sensitivities from paired lake sediment dinosterol hydrogen isotope records in the South Pacific Convergence Zone
Ashley E. Maloney, Julie N. Richey, Daniel B. Nelson, Samantha N Hing, David A. Sear, Jonathan D. Hassall, Peter G. Langdon, Ursula Sichrowsky, Robert Schabetsberger, Atoloto Malau, Jean-Yves Meyer, Ian W. Croudace, Julian P. Sachs
P. Rioual, editor(s)
2022, Quaternary Science Reviews (281) 1-18
Hydroclimate on ‘Uvea (Wallis et Futuna) is controlled by rainfall associated with the South Pacific Convergence Zone (SPCZ), the southern hemisphere's largest precipitation feature. To extend the short observational precipitation record, the hydrogen isotopic composition of the algal lipid biomarker dinosterol (δ2Hdinosterol) was measured in sediment...
Pharmaceutical pollution of the world’s rivers
John L. Wilkinson, Alistair B. A. Boxall, Dana W. Kolpin, Kenneth M. Y. Leung, Racliffe W. S. Lai, Cristobal Galban-Malagon, Aiko D. Adell, J. Mondon, M. Metian, R. Marchant, Alejandra Bouzas-Monroy, Aida Cuni-Sanchez, A. Coors, Carriquiriborde P., M. Rojo, C. Gordon, Magdalena Cara, M. Moermond, Thais Luarte, V. Petrosyan, Yekaterina Perikhanyan, Clare S. Mahon, Christopher J. McGurk, T. Hofmann, T. Kormoker, V. Iniguez, J. Guzman-Otazo, Jean L. Tavares, Francisco Gildasio de Figueiredo, Maria T. P. Razzolini, V. Dougnon, G. Gbaguidi, Oumar Traore, Jules M. Blais, Linda E. Kimpe, M. Wong, D. Wong, R. Ntchantcho, J. Pizarro, Guang-Guo Ying, Chang-Er Chen, Martha Paez, Jina Martinez-Lara, Jean-Paul Otamonga, John Pote, Suspense A. Ifo, Penelope J. Wilson, Silvia Echeverria-Saenz, N. Udikovic-Kolic, M. Milakovic, D. Fatta-Kassinos, L. Ioannou-Ttofa, Vladimira Belusova, J. Vymazal, Maria Cardenas-Bustamante, Bayable A. Kassa, J Garric, A. Chaumot, Peter Gibba, I. Kunchulia, Seidensticker S., G. Lyberatos, Halldór P. Halldórsson, Molly Melling, T. Shashidhar, Manisha Lamba, A. Nastiti, A. Supriatin, N. Pourang, A. Abedini, Omar Abdullah, Salem S. Gharbia, F. Pilla, B. Chefetz, T. Topaz, Koffi Marcellin Yao, B. Aubakirova, R. Beisenova, L. Olaka, Jemimah Mulu, P. Chatanga, V. Ntuli, Nathaniel T. Blama, S. Sherif, Ahmad Zaharin Aris, Ley Juen Looi, M. Niang, Seydou T. Traore, Rik Oldenkamp, O. Ogunbanwo, M. Ashfaq, M. Iqbal, Z. Abdeen, A. O’Dea, Jorge Manuel Morales-Saldana, M. Custodio, H. de la Cruz, I. Navarrete, F. Carvalho, Alhaji B. Gogra, Bashiru M. Koroma, Vesna Cerkvenik-Flajs, Mitja Gombac, M. Thwala, K. Choi, H. Kang, John L. Celestino Ladu, A. Rico, P. Amerashinghe, A. Sobek, G. Horlitz, Armin K. Zenker, Alex C. King, Jheng-Jie Jiang, Rebecca Kariuki, M. Tumbo, U. Tezel, Turgut T. Onay, Julius B. Lejju, Y. Vystavna, Y. Vergeles, H. Heinzen, Andres Perez-Parada, Douglas B. Sims, M. Figy, David Good, C. Teta
2022, Proceedings of the National Academy of Sciences (119) 1-10
Environmental exposure to active pharmaceutical ingredients (APIs) can have negative effects on the health of ecosystems and humans. While numerous studies have monitored APIs in rivers, these employ different analytical methods, measure different APIs, and have ignored many of the countries of the world. This makes it difficult to quantify...
Identification of fresh submarine groundwater off the coast of San Diego, USA, using electromagnetic methods
Roslynn B. King, Wesley R. Danskin, Steven Constable, Jillian M. Maloney
2022, Hydrogeology Journal (30) 965-973
Climate change has a pronounced effect on water resources in many semiarid climates, causing populated areas such as San Diego County (USA), to become more vulnerable to water shortages in the coming decades. To prepare for decreased water supply, San Diego County is adopting policies to decrease water use and...
Limited land base and competing land uses force societal tradeoffs when siting energy development
Jill A. Shaffer, Neal D. Niemuth, Charles R. Loesch, Clayton E. Derby, Aaron T. Pearse, Kevin W. Barnes, Terry L. Shaffer, Adam J. Ryba
2022, Journal of Fish and Wildlife Management (13) 106-123
As human populations grow, decisions regarding use of the world's finite land base become increasingly complex. We adopted a land use–conflict scenario involving renewable energy to illustrate one potential cause of these conflicts and resulting tradeoff decisions. Renewable energy industries wishing to expand operations in the United States are limited...
Water chemistry, exposure routes and metal forms determine the bioaccumulation dynamics of silver (ionic and nanoparticulate) in Daphnia magna
Emma Lesser, Fatima Noor Sheikh, Mithun Sikder, Marie Noele Croteau, Natasha Franklin, Mohammed Baalousha, Niveen S. Ismail
2022, Environmental Toxicology and Chemistry (41) 726-738
Treatment wetlands utilize various physical and biological processes to reduce levels of organic contaminants, metals, bacteria, and suspended solids. Silver nanoparticles (AgNPs) are one type of contaminant that can enter treatment wetlands and impact the overall treatment efficacy. Grazing by filter-feeding zooplankton, such as Daphnia magna, is critical to treatment wetland...
State of stress in areas of active unconventional oil and gas development in North America
Jens-Erik Lundstern, Mark D. Zoback
2022, AAPG Bulletin (106) 355-385
In this paper, we present comprehensive data on stress orientation and relative magnitude in areas throughout North America where unconventional oil and gas are currently being developed. We find excellent agreement between maximum horizontal principal stress (SHmax) orientations over a wide range of depths, using multiple methods. In all...
Bright spots for inland fish and fisheries to guide future hydropower development
William M. Twardek, Ian G. Cowx, Nicolas W.R. Lapointe, Craig P. Paukert, T. Douglas Beard Jr., Elena M. Bennett, David Browne, Andrew K. Carlson, Keith D. Clarke, Zeb Hogan, Kai Lorenzen, Abigail Lynch, Peter B. McIntyre, Paulo S. Pompeu, Mark W. Rogers, Alexis Sakas, William W. Taylor, Taylor D. Ward, Zeenatul Basher, Steven J. Cooke
2022, Water Biology and Security (1)
Hydropower production is one of the greatest threats to fluvial ecosystems and freshwater biodiversity. Now that we have entered the Anthropocene, there is an opportunity to reflect on what might constitute a ‘sustainable’ Anthropocene in the context of hydropower and riverine fish populations. Considering elements of existing practices that promote favorable...
Isotopic discrimination of natural and anthropogenic perchlorate sources in groundwater in a semi-arid region of northeastern Oregon (USA)
Paul B. Hatzinger, J.K. Bohlke, W.A. Jackson, Baohua Gu, Stanley J. Mroczkowski, Neil C. Sturchio
2022, Applied Geochemistry (139)
Perchlorate (ClO4−) has synthetic and natural sources. Synthetic ClO4− is released to the environment from its use as an oxidant in military and aerospace applications, and from its presence in a variety of common commercial products, such as safety flares, chlorate herbicides, and fireworks. Natural sources of ClO4− in the...
Quantifying the sensitivity of microearthquake slip inversions to station distribution using a dense nodal array
Colin Nathanael Pennington, Hilary Chang, Justin Rubinstein, Rachel E. Abercrombie, Nori Nakata, Takahiko Uchide, Elizabeth S. Cochran
2022, Bulletin of the Seismological Society of America (112) 1252-1270.
To investigate the sensitivity of slip inversions to station distribution and choice of empirical Green’s function (EGF), we examine three microearthquakes that occurred within the high‐density LArge‐n Seismic Survey in Oklahoma (LASSO) nodal seismic array. The LASSO array’s dense distribution of 1825 geophones provides...
Site- and individual-level contaminations affect infection prevalence of an emerging infectious disease of amphibians
Kelly L. Smalling, Brittany A. Mosher, Luke R. Iwanowicz, Keith A. Loftin, Adam Boehlke, Michelle L. Hladik, Carly R. Muletz-Wolz, Nandadevi Cortes-Rodriguez, Robin Femmer, Evan H. Campbell Grant
2022, Environmental Toxicology and Chemistry (41) 781-791
Emerging infectious disease outbreaks are one of multiple stressors responsible for amphibian declines globally. In the northeastern United States, ranaviral diseases are prevalent in amphibians and other ectothermic species, but there is still uncertainty as to whether their presence is leading to population level effects. Further, there is also uncertainty...
INHABIT: A web-based decision support tool for invasive plant species habitat visualization and assessment across the contiguous United States
Peder Engelstad, Catherine S. Jarnevich, Terri Hogan, Helen Sofaer, Ian S. Pearse, Jennifer Sieracki, Neil Frakes, Julia Sullivan, Nicholas E. Young, Janet S. Prevey, Pairsa Nicole Belamaric, Jillian Marie Laroe
Daniel de Paiva Silva, editor(s)
2022, PLoSOne (17) 1-15
Narrowing the communication and knowledge gap between producers and users of scientific data is a longstanding problem in ecological conservation and land management. Decision support tools (DSTs), including websites or interactive web applications, provide platforms that can help bridge this gap. DSTs can most effectively disseminate and translate research results...
Validating predicted site response in sedimentary basins from 3D ground motion simulations
Chukwuebuka C Nweke, Jonathan P. Stewart, Robert Graves, Christine A. Goulet, Scott J Brandenberg
2022, Earthquake Spectra (38) 2135-2161
We introduce procedures to validate site response in sedimentary basins as predicted using ground motion simulations. These procedures aim to isolate contributions of site response to computed intensity measures relative to those from seismic source and path effects. In one of the validation procedures, simulated motions are...
Characterizing unrest: A retrospective look at 20 years of gas emissions and seismicity at Iliamna Volcano, Alaska
Cynthia Werner, John Power, Peter J. Kelly, Stephanie Prejean, Christoph Kern
2022, Journal of Volcanology and Geothermal Research (422)
Episodes of unrest are not as well documented as eruptions at most volcanoes globally. Iliamna is an andesitic stratovolcano in the Cook Inlet of Alaska that has experienced several episodes of unrest. Unrest in 1996 was previously studied. Here we present data...
Classifying behavior from short-interval biologging data: An example with GPS tracking of birds
Silas Bergen, Manuela Huso, A. Duerr, Missy A Braham, Todd E. Katzner, Sara Schmuecker, Tricia A. Miller
2022, Ecology and Evolution (12)
Recent advances in digital data collection have spurred accumulation of immense quantities of data that have potential to lead to remarkable ecological insight, but that also present analytic challenges. In the case of biologging data from birds, common analytical approaches to classifying movement behaviors are largely inappropriate for these...
Hypotheses and lessons from a native moth outbreak in a low-diversity, tropical rainforest
Paul C. Banko, Robert W. Peck, Stephanie G. Yelenik, Eben H. Paxton, Frank Bonaccorso, Kristina Montoya-Aiona, R. Flint Hughes, Steven S. Perakis
Uffe Nielsen, editor(s)
2022, Ecosphere (13) 1-41
Outbreaks of defoliating insects in low-diversity tropical forests occur infrequently but provide valuable insights about outbreak ecology in temperate environments and in general. We investigated an extensive outbreak of the endemic koa moth (Scotorythra paludicola), which defoliated endemic koa trees (Acacia koa) over a third of their range on Hawai‘i...
Multi-species, multi-country analysis reveals North Americans are willing to pay for transborder migratory species conservation
Wayne E. Thogmartin, Michelle A. Haefele, James E. Diffendorfer, Darius J. Semmens, Jonathan J. Derbridge, Aaron M. Lien, Ta-Ken Huang, Laura Lopez-Hoffman
2022, People and Nature (4) 549-562
Migratory species often provide ecosystem service benefits to people in one country while receiving habitat support in other countries. The multinational cooperation that could help ensure continued provisioning of these benefits by migration may be informed by understanding the economic values people in different countries place on the benefits...
Increased juvenile native fish abundance following a major flood in an Arizona river
Christopher J. Jenney, Zach C. Nemec, Larissa N. Lee, Scott A. Bonar
2022, Journal of Freshwater Ecology (37) 1-14
Spring floods trigger spawning in many native fishes of the desert Southwest (USA), but less is known about fish community response when native fishes are rare. Here, we document change to native and nonnative fish captures and instream habitat features following a decade-high flooding event (2019) in the Verde River...
Managing multiple species with conflicting needs in the Greater Everglades
Stephanie Romanach, Saira M. Haider, Caitlin E. Hackett, Mark McKelvy, Leonard G. Pearlstine
2022, Ecological Indicators (136)
Given limited funding, natural resources decision making is riddled with tradeoffs, including which species or landscapes to prioritize for management action. Florida’s Everglades wetland is home to numerous indicator species, some of which are endangered. But with a multitude of species...
