Quaternary displacement on the Joiner Ridge Fault, eastern Arkansas
Audrey C. Price, Edward W Woolery, Ron Counts, Roy Van Arsdale, Daniel Larsen, Shannon A. Mahan, Glynn Beck
2020, Seismological Research Letters (90) 2250-2261
The New Madrid seismic zone of the central United States is an intraplate seismic zone with blind structures that are not seismically active but may pose seismic hazards. The Joiner Ridge fault is the 35 km long east-bounding fault of the Joiner Ridge blind horst located in eastern Arkansas approximately...
Influence of land use and hydrologic variability on seasonal dissolved organic carbon and nitrate export: Insights from a multi-year regional analysis for the northeastern USA
Erin Seybold, Arthur J. Gold, Shreeram P. Inamdar, Carol Adair, W.B. Bowden, Matthew Vaughan, Soni M. Pradhanang, Kelly Addy, James B. Shanley, Andrew W. Vermilyea, Delphis F. Levia, Beverley Wemple, Andrew W. Schroth
2020, Biogeochemistry (146) 31-49
Land use/land cover (LULC) change has significant impacts on nutrient loading to aquatic systems and has been linked to deteriorating water quality globally. While many relationships between LULC and nutrient loading have been identified, characterization of the interaction between LULC, climate (specifically variable hydrologic forcing) and solute export across seasonal...
Alignment of surface water ontologies: A comparison of manual and automated approaches
Michelle Cheatham, Dalia E. Varanka, Fatima Arauz, Lu Zhou
2020, Journal of Geographical Systems (22) 267-289
More data are being collected about the world around us than ever before, but effectively using this information requires different data stores to be integrated in such a way that they can be seamlessly queried and analyzed. Automated alignment algorithms exist to facilitate this data integration challenge. In this paper...
Juvenile Sandhill Cranes exhibit wider ranging and more exploratory movements than adults during the breeding season
David W. Wolfson, John R. Fieberg, David E. Andersen
2020, Ibis (162) 556-562
Sandhill Cranes Antigone canadensis exhibit delayed sexual maturity and breeding, and therefore juvenile Cranes searching for suitable territories to occupy have different ecological constraints on movements than adults, which must defend a territory and raise young. We used fine-scale GPS telemetry data to characterize and compare movements of adult and juvenile Cranes...
Addressing barriers to improve biocrust colonization and establishment in dryland restoration
Anita Antoninka, Matthew A. Bowker, Nichole N. Barger, Jayne Belnap, Ana Giraldo Silva, Sasha C. Reed, Ferran Garcia-Pichel, Michael C. Duniway
2020, Restoration Ecology (28) s150-s159
Methods to reduce soil loss and associated loss of ecosystem functions due to land degradation are of particular importance in dryland ecosystems. Biocrusts are communities of cyanobacteria, lichens, and bryophytes that are vulnerable to soil disturbance, but provide vital ecosystem functions when present. Biocrusts stabilize soil, improve hydrologic function, and...
Disentangling the effects of habitat biogeochemistry, food web structure, and diet composition on mercury bioaccumulation in a wetland bird
Laurie Anne Hall, Isa Woo, Mark C. Marvin-DiPasquale, Danika C Tsao, David P. Krabbenhoft, John Y. Takekawa, Susan E.W. De La Cruz
2020, Environmental Pollution (256)
Methylmercury (MeHg) is a globally pervasive contaminant with known toxicity to humans and wildlife. Several sources of variation can lead to spatial differences in MeHg bioaccumulation within a species including: biogeochemical processes that influence MeHg production and availability within an organism’s home range; trophic...
Dissolved oxygen controls summer habitat of Clear Lake Hitch (Lavinia exilicauda chi), an imperilled potamodromous cyprinid
Frederick V. Feyrer, Matt Young, Oliver Patton, David E. Ayers
2020, Ecology of Freshwater Fish (29) 188-196
The Clear Lake Hitch is an imperiled minnow endemic to Clear Lake, Lake County, California, USA that is listed as threatened under the California Endangered Species Act (ESA) and is a candidate for listing under the United States ESA. It exhibits a potamodromous life cycle whereby adults, which reach...
Examining progress toward achieving the Ten Steps of the Rome Declaration on Responsible Inland Fisheries
Abigail Lynch, Devin M. Bartley, Douglas Beard, Ian. G. Cowx, Simon Funge-Smith, William W. Taylor, Steve J. Cooke
2020, Fish and Fisheries (21) 190-203
Inland capture fisheries provide food for nearly a billion people and are important in the livelihoods of millions of households worldwide. Although there are limitations to evaluating many of the contributions made by inland capture fisheries, there is growing recognition by the international community that these services make critical contributions,...
Framework for monitoring shrubland community integrity in California Mediterranean type ecosystems: Information for policy makers and land managers
Dawn M. Lawson, Jon Keeley
2020, Conservation Science and Practice (1)
Shrublands in Mediterranean‐type ecosystems worldwide support important ecosystem services including high levels of biodiversity and are threatened by multiple factors in heavily used landscapes. Use, conservation, and management of these landscapes involve diverse stakeholders, making decision processes complex. To be effective, management and land use decisions should be informed by...
Lake Ontario deepwater sculpin recovery: An unexpected outcome of ecosystem change
Brian Weidel, Michael J. Connerton, Maureen Walsh, Jeremy Holden, Kristen Holleck, Brian F. Lantry
2020, Book chapter, From catastrophe to recovery: Stories of fish management success
Fish population recoveries can result from ecosystem change in the absence of targeted restoration actions. In Lake Ontario, native Deepwater Sculpin Myoxecephalus thompsonii, were common in the late-1800s, but by the mid-1900s the species was possibly extirpated. During this period mineral nutrient inputs increased and piscivore abundance declined, which increased...
Hybridization and population genetics of Alligator Gar in Lake Texoma
Andrew T. Taylor, James M. Long, Raymond W. Snow, M. J. Porta
2020, North American Journal of Fisheries Management (40) 544-554
The Alligator Gar Atractosteus spatula (AG) is a long-lived fish of growing management and conservation interest. Situated on the border of Texas and Oklahoma, Lake Texoma supports one of the last robust AG populations in Oklahoma; however, a genetic evaluation of this population is lacking. We genotyped AG individuals with 17 microsatellite...
Global status of trout and char: Conservation challenges in the twenty-first century
Clint C. Muhlfeld, Daniel C. Dauwalter, Vincent S. D’Angelo, Andrew Ferguson, J. Joseph Giersch, Dean Impson, Itsuro Koizumi, Ryan Kovach, Philip McGinnity, Johannes Schoeffmann, John Epifanio, Leif Asbjørn Vøllestad
2020, Book chapter, Trout and char of the world
Freshwater ecosystems are among the most threatened ecosystems in the world (Richter et al. 1997; Strayer and Dudgeon 2010), and freshwater fishes may now be the most threatened group of vertebrates (Ricciardi and Rasmussen 1999; Vorosmarty et al. 2010; Darwall and Freyhof 2016). Of the 7,300 freshwater fish species globally...
The long-term effects of Hurricanes Wilma and Irma on soil elevation change in Everglades mangrove forests
Laura Feher, Michael Osland, Gordon Anderson, William Vervaeke, Ken Krauss, Kevin R. T. Whelan, Karen M. Balentine, Ginger Tiling-Range, Thomas J. Smith, Donald Cahoon
2020, Ecosystems (23) 917-931
Mangrove forests in the Florida Everglades (USA) are frequently affected by hurricanes that produce high-velocity winds, storm surge, and extreme rainfall, but also provide sediment subsidies that help mangroves adjust to sea-level rise. The long-term influence of hurricane sediment inputs on soil elevation dynamics in mangrove forests are not well...
Rabies outbreak in captive big brown bats (Eptesicus fuscus) used in white-nose syndrome vaccine trial
Rachel C. Abbott, L.G. Saindon, Elizabeth Falendysz, Lauren Greenberg, L.A. Orciari, Panayampalli Subbian Satheshkumar, Tonie E. Rocke
2020, Journal of Wildlife Diseases (56) 197-202
An outbreak of rabies occurred in a captive colony of wild-caught big brown bats (Eptesicus fuscus). Five of 27 bats exhibited signs of rabies virus infection 22–51 d after capture or 18–22 d after contact with the index case. Rabid bats showed weight loss, aggression, increased vocalization, hypersalivation, and refusal...
An integrative GIS approach to analyzing the impacts of septic systems on the coast of Florida, USA
Kyle Flanagan, Barnali Dixon, Tess Rivenbark, Dale W. Griffin
2020, Physical Geography (41) 407-432
An estimated 2.7 million septic systems in Florida, USA are potential ground and surface water contaminant sources that may affect environmental and human health. This study examined the spatial distribution of septic systems, coastal surface water contamination, and related environmental factors of coastal Florida watersheds at the 8-digit hydrologic unit...
Stock-recruitment dynamics of a freshwater clupeid
Leandro E. Miranda, D. M. Norris, V.R. Strarnes, Nicky M. Faucheux, T. Holman
2020, Fisheries Research (221)
The clupeid gizzard shad Dorosoma cepedianum is often the most abundant fish species in North American reservoirs, and this dominance can have cascading trophic effects on entire fish assemblages. Accordingly, a key aspect of managing reservoir fish assemblages involves controlling gizzard shad densities. We used a...
Designing flows to enhance ecosystem functioning in heavily altered rivers
Kevin R. Bestgen, N. LeRoy Poff, Daniel W Baker, Brian P. Bledsoe, David M. Merritt, Mark Lorie, Gregor T. Auble, John S. Sanderson, Boris C. Kondratieff
2020, Ecological Applications (30)
More than a century of dam construction and water development in the western United States has led to extensive ecological alteration of rivers. Growing interest in improving river function is compelling practitioners to consider ecological restoration when managing dams and water extraction. We developed an Ecological Response Model (ERM) for...
Quantifying hydrologic controls on local- and landscape-scale indicators of coastal wetland loss
Camille Stagg, Michael Osland, Jena A. Moon, Courtney Hall, Laura Feher, William R. Jones, Brady Couvillion, Stephen B. Hartley, William Vervaeke
2020, Annals of Botany (125) 365-376
Background and AimsCoastal wetlands have evolved to withstand stressful abiotic conditions through the maintenance of hydrologic feedbacks among vegetation production and flooding. However, disruption of these feedbacks can lead to ecosystem collapse, or a regime shift from vegetated wetland to open water. To prevent the loss of critical coastal...
Apatite trace element geochemistry and cathodoluminescent textures—Acomparison between regional magmatism and the Pea Ridge IOA-REE andBoss IOCG deposits, southeastern Missouri iron metallogenic province, USA
Celestine N. Mercer, Kathryn E. Watts, Juliane Gross
2020, Ore Geology Reviews (116)
The southeast Missouri iron metallogenic province contains a remarkable wealth of historically important Fe, Cu, Au, and rare earth element (REE) deposits including the Pea Ridge iron oxide-apatite-rare earth element (IOA-REE) deposit and the Boss iron oxide-copper-gold (IOCG) deposit. These deposits are coeval with silicic and intermediate composition magmatism in...
Late Quaternary sea-level history of Saipan, Commonwealth of the Northern Mariana Islands, USA: A test of tectonic uplift and glacial isostatic adjustment models
Daniel R. Muhs, Eugene S. Schweig, Kathleen R. Simmons
2020, Geological Society of America Bulletin (132) 863-883
In 1979, S. Uyeda and H. Kanamori proposed a tectonic model with two end members of a subduction-boundary continuum: the “Chilean” type (shallow dip of the subducting plate, great thrust events, compression, and uplift of the overriding plate) and a “Mariana” type (steep dip of the subducting plate, no great...
Winter climate change and the poleward range expansion of a tropical invasive tree (Brazilian pepper ‐ Shinus terebinthifolius)
Michael Osland, Laura Feher
2020, Global Change Biology (26) 607-615
Winter climate change is expected to lead to the tropicalization of temperate ecosystems, where tropical species expand poleward in response to a decrease in the intensity and duration of winter temperature extremes (i.e., freeze events). In the southeastern United States, freezing temperatures control the northern range limits of many invasive...
Local abundance of Ixodes scapularis in forests: Effects of environmental moisture, vegetation characteristics, and host abundance
Howard S. Ginsberg, Eric L. Rulison, Jasmine L. Miller, Genevieve Pang, Isis M. Arsnoe, Graham J. Hickling, Nicholas H. Ogden, Roger A. LeBrun, Jean I. Tsao
2020, Ticks and Tick-borne Diseases (11)
Ixodes scapularis is the primary vector of Lyme disease spirochetes in eastern and central North America, and local densities of this tick can affect human disease risk. We sampled larvae and nymphs from sites in Massachusetts and Wisconsin, USA, using flag/drag devices and by collecting ticks from hosts, and measured environmental...
Geoacoustic inversion for a New England mud patch sediment using the silt-suspension theory of marine mud
Elisabeth M. Brown, Ying-Tsong Lin, Jason Chaytor, William L. Siegmann
2020, IEEE Journal of Oceanic Engineering (45) 144-160
This article provides an application of the silt-suspension theory to a Bayesian-inference inversion for the geo-acoustic parameters in marine mud. The theory, with consequences that have been developed recently, postulates a suspension of water and clay mineral card-houses that supports moderately dilute concentrations of silt particles. The approach is an...
Spatial variability of phytoplankton in a shallow tidal freshwater system reveals complex controls on abundance and community structure
Elizabeth B. Stumpner, Brian A. Bergamaschi, Tamara E. C. Kraus, Alexander Parker, Francis Wilkerson, Bryan D. Downing, Richard Dugdale, Michael T. Murrell, Kurt D. Carpenter, James Orlando, Carol Kendall
2020, Science of the Total Environment (700)
Estuaries worldwide are undergoing changes to patterns of aquatic productivity because of human activities that alter flow, impact sediment delivery and thus the light field, and contribute nutrients and contaminants like pesticides and metals. These changes can influence phytoplankton communities, which in turn can...
Modeling strategies and evaluating success during repatriations of elusive and endangered species
Brian Folt, Conor P. McGowan, D.A. Steen, S. Picolomini, M. Hoffman, J.C. Godwin, C. Guyer
2020, Animal Conservation (23) 273-285
Wildlife repatriation is an important tool to decrease extinction risk for imperiled species, but successful repatriations require significant time, resources and planning. Because repatriations can be long and expensive processes, clear release strategies and monitoring programs are essential to efficiently use resources and evaluate success. However,...
