Annual variations in microcystin occurrence in Upper Klamath Lake, Oregon, based on high-throughput DNA sequencing, qPCR, and environmental parameters
Sara L. Caldwell Eldridge, Tamara M. Wood
2019, Lake and Reservoir Management (36) 31-44
Cyanobacteria-dominated blooms in Upper Klamath Lake, Oregon, create poor water quality and produce microcystins that may be detrimental to local wildlife and human health. Genetic tools, including high-throughput DNA sequencing and quantitative polymerase chain reaction (qPCR), have been shown to improve the identification and quantification of key...
Recognizing the Famine Early Warning Systems Network: Over 30 years of drought early warning science advances and partnerships promoting global food security
Chris Funk, Shraddhanand Shukla, Wassila Mamadou Thiaw, James Rowland, Andrew Hoell, Gregory Husak, Nicholas Novella
2019, Bulletin of the American Meteorological Society 1011-1027
On a planet with more than 7 billion people, how do we identify the millions of drought-afflicted people who face a real threat of livelihood disruption or death without humanitarian assistance? Typically, these people are poor and heavily dependent on rainfed agriculture and livestock. Most live in Africa, Central America,...
Subsurface water piping prevents meromixis in a deep volcanic crater lake (Dominica, West Indies)
Bryan M. Maitland, Brian O’Malley, Donald J. Stewart
2019, Hydrobiologia (839) 119-130
Boeri Lake—a small (3.6 ha) but deep (39.6 m) crater lake on Morne Micotrin in Dominica, West Indies—presents a limnological enigma; it exhibits strong morphometric and circumstantial evidence for meromixis, yet it is not stratified. We tested the hypothesis that water seepage from Boeri Lake overcomes morphometric drivers of stratification...
Facilitating adaptation to climate change while restoring a montane plant community
Christina Leopold, Steve C. Hess
2019, PLoS ONE (14)
Montane plant communities throughout the world have responded to changes in temperature regimes by shifting ranges upward in elevation, and made downslope movements to track shifts in climatic water balance. Organisms that cannot disperse or adapt biologically to projected climate scenarios in situ may decrease in distributional range and abundance...
Early emergence of mcr-1-positive Enterobacteriaceae in gulls from Spain and Portugal
Christina Ahlstrom, Andrew M. Ramey, Hanna Woksepp, Jonas Bonnedahl
2019, Environmental Microbiology Reports (11) 669-671
We tested extended‐spectrum β‐lactamase producing bacteria from wild gulls (Larusspp.) sampled in 2009 for the presence of mcr‐1. We report the detection of mcr‐1 and describe genome characteristics of four Escherichia coli and one Klebsiella pneumoniaeisolate from Spain and Portugal that also exhibited colistin resistance. Results represent the earliest evidence for colistin‐resistant bacteria in European...
Climate and disturbance influence self-sustaining stand dynamics of aspen (Populus tremuloides) near its range margin
Douglas J. Shinneman, Susan K. McIlroy
2019, Ecological Applications (29)
Species that are primarily seral may form stable (self-sustaining) communities under certain disturbance regimes or environmental conditions, yet such populations may also be particularly vulnerable to ecological change. Aspen (Populus spp.) are generally considered seral throughout the northern hemisphere, including P. tremuloides, the most widely distributed tree species in North...
Evaluating mechanisms of plant‐mediated effects on herbivore persistence and occupancy across an ecoregion
Jennifer L. Wilkening, Evan J. Cole, Erik A. Beever
2019, Ecosphere (10)
Contemporary climate change is rapidly creating one of the greatest challenges for management and conservation during the 21st century. Mountain ecosystems, which have a high degree of spatial heterogeneity and contain numerous habitat specialists, have been identified as particularly vulnerable. We used data from multiple years across sites spanning a...
SUSTAIN drilling at Surtsey volcano, Iceland, tracks hydrothermal and microbiological interactions in basalt 50 years after eruption
M.D. Jackson, M.T. Gudmundsson, T.B. Weisenberger, J.M. Rhodes, A. Stefansson, B. Kleine, P.C. Lippert, J.M. Marquardt, H.I. Reynolds, J. Kuck, V.Th. Marteinsson, P. Vannier, W. Bach, A. Barich, P. Bergsten, J. G. Bryce, P. Cappelletti, S. Couper, M.F. Fahnestock, C. Gorny, C. Grimaldi, M. Groh, A. Gudmundsson, A.Th. Gunnlaugsson, C. Hamlin, Th. Hognadottir, K. Jonasson, S.S. Jonsson, S.L. Jorgensen, A. Klonowski, B.V. Marshall, J. McPhie, James G. Moore, E.S. Olafsson, S.L. Onstag, V. Perez, S. Prause, S.P. Snorasson, A. Türke, J.D.L. White, B. Zimanowski
2019, Scientific Drilling (25) 35-46
The 2017 Surtsey Underwater volcanic System for Thermophiles, Alteration processes and INnovative concretes (SUSTAIN) drilling project at Surtsey volcano, sponsored in part by the International Continental Scientific Drilling Program (ICDP), provides precise observations of the hydrothermal, geochemical, geomagnetic, and microbiological changes that have occurred in basaltic tephra and minor intrusions...
Is barotrauma an important factor in the discard mortality of Yellow Perch?
Carey Knight, Richard T. Kraus, Demetra Panos, Ann Marie Gorman, Benjamin Leonhardt, Jason Robinson, Michael J. Thomas
2019, Journal of Fish and Wildlife Management (10) 69-78
In physoclistous fishes, barotrauma caused by rapid decompression during capture may be an important source of fishing mortality that is unquantified for some fisheries. We developed a predictive logistic model for barotrauma incidence in Yellow Perch Perca flavescens and applied this model to Ohio's recreational and commercial fisheries in Lake...
Feeling the sting? Addressing land-use changes can mitigate bee declines
Jennie Durant, Clint Otto
2019, Land Use Policy (87)
Pollinators are an essential component of functioning and sustainable agroecosystems. Despite their critical economic and ecological role, wild and managed bees are declining throughout the United States and across the globe. Commercial beekeepers lost nearly 40.5% of their colonies in 2015–2016 and estimated wild bee abundance declined 23% between 2008...
Inundation, flow dynamics, and damage in the 9 January 2018 Montecito Debris-Flow Event, California, USA: Opportunities and challenges for post-wildfire risk assessment
Jason W. Kean, Dennis M. Staley, Jeremy T. Lancaster, Francis K. Rengers, Brian J. Swanson, Jeffrey A. Coe, Janis Hernandez, Aaron Sigman, Kate E. Allstadt, Donald N. Lindsay
2019, Geosphere (15) 1140-1163
Shortly before the beginning of the winter rainy season, one of the largest fires in California history (Thomas Fire) substantially increased the susceptibility of steep slopes in Santa Barbara and Ventura Counties to debris flows. On January 9, 2018, before the fire was fully contained, an intense burst of rain...
Screen-printed soft capacitive sensors for spatial mapping of both positive and negative pressures
Hongyang Shi, Mohammed Al-Rubaiai, Christopher M. Holbrook, Jinshui Miao, Thassyo Pinto, Chuan Wang, Xiaobo Tan
2019, Advanced Functional Materials (29)
Soft pressure sensors are one class of the essential devices for robotics and wearable device applications. Despite the tremendous progress, sensors that can reliably detect both positive and negative pressures have not yet been demonstrated. In this paper, we report a soft capacitive pressure sensor made using a convenient and...
Effect of amphibian chytrid fungus (Batrachochytrium dendrobatidis) on apparent survival of frogs and toads in the western USA
Robin E. Russell, Brian J. Halstead, Brittany Mosher, Erin L. Muths, Michael J. Adams, Evan H. Campbell Grant, Robert N. Fisher, Patrick M. Kleeman, Adam R. Backlin, Christopher Pearl, R. Ken Honeycutt, Blake R. Hossack
2019, Biological Conservation (236) 296-304
Despite increasing interest in determining the population-level effects of emerging infectious diseases on wildlife, estimating effects of disease on survival rates remains difficult. Even for a well-studied disease such as amphibian chytridiomycosis (caused by the fungus Batrachochytrium dendrobatidis [Bd]), there are few estimates...
An ANCOVA model for porosity and its uncertainty for oil reservoirs based on TORIS dataset
C. Ozgen Karacan
2019, Journal of Petroleum Science and Engineering
Porosity is one of the most important parameters to assess in-place oil or gas in reservoirs, and to evaluate recovery from enhanced production operations. Since it is relatively well-established to determine porosity using different laboratory and field methods, its value is usually determined at many locations across a reservoir...
Discriminating among Pacific salmon, Rainbow Trout, and Atlantic Salmon species using common genetic screening methods
Christopher Habicht, Andrew Barclay, Heather A. Hoyt, Christian T. Smith, Keith N. Turnquist, Wesley Larson
2019, Journal of Fish and Wildlife Management (10) 228-240
The five most common species of Pacific salmon, Rainbow Trout (steelhead) Oncorhynchus spp., and Atlantic Salmon Salmo salar intermingle in the North Pacific Ocean and its freshwater tributaries. Efficient morphological methods for distinguishing among these species are sometimes limited by condition of the specimen (degraded or missing morphology), life...
Characterizing seismogenic fault structures in Oklahoma using a relocated template matched catalog
Robert Skoumal, Joern Kaven, Jake Water
2019, Seismological Research Letters (90) 1535-1543
Oklahoma is one of the most seismically active places in the United States as a result of industry activities. In order to characterize the fault networks responsible for these earthquakes in Oklahoma, we relocated a large-scale template matching catalog between 2010-2016 using the GrowClust algorithm . This relocated catalog is...
Return flows from beaver ponds enhance floodplain-to-river metals exchange in alluvial mountain catchments
Martin Briggs, Cheng-Hui Wang, Frederick Day-Lewis, Kenneth H. Williams, Wenming Dong, John Lane
2019, Science of the Total Environment (685) 357-369
River to floodplain hydrologic connectivity is strongly enhanced by beaver- (Castor canadensis) engineered channel water diversions. The hydroecological impacts are wide ranging and generally positive, however, the hydrogeochemical characteristics of beaver-induced flowpaths have not been thoroughly examined. Using a suite of complementary ground- and drone-based heat tracing and remote sensing...
Protected areas lacking for many common fluvial fishes of the conterminous USA
Arthur R. Cooper, Yin-Phang Tsang, Dana M. Infante, Wesley M. Daniel, Alexa McKerrow, Daniel J. Wieferich
2019, Diversity and Distributions (25) 1289-1303
AimTo assess the effectiveness of protected areas in two catchment scales (local and network) in conserving regionally common fluvial fishes using modelled species distributions.LocationConterminous United States.MethodsA total of 150 species were selected that were geographically widespread, abundant, non‐habitat specialists and native...
Growing pains of crowdsourced stream stage monitoring using mobile phones: The development of CrowdHydrology
Christopher Lowry, Michael N. Fienen, Damon M. Hall, Kristine Stepenuck
2019, Frontiers in Earth Science (7)
Citizen science-based approaches to monitor the natural environment tend to be bimodal in maturity. Older and established programs such as the Audubon’s Christmas bird count and Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS) have thousands of participants across decades of observations, while less mature citizen science projects have shorter...
Evidence for frequent, large tsunamis spanning locked and creeping parts of the Aleutian megathrust
Robert C. Witter, Richard W. Briggs, Simon E. Engelhart, Guy R. Gelfenbaum, Richard D Koehler, Alan R. Nelson, SeanPaul La Selle, Reide Corbett, Kristi L. Wallace
2019, Geological Society of America Bulletin (131) 707-729
At the eastern end of the 1957 Andreanof Islands magnitude-8.6 earthquake rupture, Driftwood Bay (Umnak Island) and Stardust Bay (Sedanka Island) lie along presently locked and creeping parts of the Aleutian megathrust, respectively, based on satellite geodesy onshore. Both bays, located 200-km apart, face the Aleutian trench and harbor coastal...
Development and characterization of polymorphic microsatellite markers in Northern Fulmar, Fulmarus glacialis (Procellariformes), and cross-species amplification in eight other seabirds
Megan C. Gravley, George K. Sage, Andrew M. Ramey, Scott A. Hatch, Verena A. Gill, Jolene R. Rearick, Aevar Petersen, Sandra L. Talbot
2019, Genes and Genomics (41) 1015-1026
BackgroundIn the North Pacific, northern fulmar (Fulmarus glacialis) forms extensive colonies in few locales, which may lead to limited gene flow and locale-specific population threats. In the Atlantic, there are thousands of colonies of varying sizes and in Europe the species is considered...
Planning for ecological drought: Integrating ecosystem services and vulnerability assessment
Nejem Raheem, Amanda E. Cravens, Molly S. Cross, Shelley D. Crausbay, Aaron R. Ramirez, Jamie McEvoy, Dionne Zoanni, Deborah J. Bathke, Michael Hayes, Shawn Carter, Madeleine Rubenstein, Ann Schwend, Kimberly R. Hall, Paul Suberu
2019, WIREs Water (6)
As research recognizes the importance of ecological impacts of drought to natural and human communities, drought planning processes need to better incorporate ecological impacts. Drought planning currently recognizes the vulnerability of some ecological impacts from drought (e.g., loss of instream flow affecting fish populations). However, planning often does not identify...
Evaluating the mid-infrared bi-spectral index for improved assessment of low-severity fire effects in a conifer forest
R McCarley, A.M.S Smith, C.A. Kolden, Jason R. Kreitler
2019, International Journal of Wildland Fire (27) 407-412
Remote sensing products provide a vital understanding of wildfire effects across a landscape, but detection and delineation of low- and mixed-severity fire remains difficult. While data provided by the Monitoring Trends in Burn Severity project (MTBS) are frequently used to assess severity in the United States, alternative indices can offer...
Atrazine induced transgenerational reproductive effects in medaka (Oryzias latipes)
Jacob A. Cleary, Donald E. Tillitt, Fredrick S. vom Saal, Diane Nicks, Rachel Claunch, Ramji K. Bhandari
2019, Environmental Pollution (251) 639-650
Atrazine is presently one of the most abundantly used herbicides in the United States, and a common contaminant of natural water bodies and drinking waters in high-use areas. Dysregulation of reproductive processes has been demonstrated in atrazine exposed fish, including alteration of key endocrine...
Inversion of airborne EM data with an explicit choice of prior model
Thomas Mejer Hansen, Burke J. Minsley
2019, Geophysical Journal International (218) 1348-1366
Inversion of airborne electromagnetic (AEM) data is an under-determined inverse problem, in that infinitely many resistivity models exist that will be able to explain the observed data, within measurement errors. Therefore, additional information or constraints must be taken into account to solve the inverse problem. In deterministic approaches, the goal...
