Angler catch and harvest of targeted sportfishes in small Georgia lakes
H. J. Roop, N. C. Poudyal, Cecil A. Jennings
2019, Journal of the Southeastern Association of Fish and Wildlife Agencies (6) 28-34
Public fishing areas (PFAs) in Georgia are intensively managed freshwater impoundments that provide a variety of fishing opportunities to anglers. Management efforts and fishing regulations at these PFAs depend on understanding basic aspects of recreational fishing pressure, catch, and harvest. Accordingly, we conducted a roving creel survey during January...
Changes in belowground biodiversity during ecosystem development
Manuel Delgado-Baquerizo, Richard D. Bardgett, Peter M. Vitousek, Fernando T. Maestre, Mark A. Williams, David J. Eldridge, Hans Lambers, Sigrid Neuhauser, Antonio Gallardo, Laura Garcia-Velazquez, Osvaldo E. Sala, Sebastian R. Abades, Fernando D. Alfaro, Asmeret A. Berhe, Matthew A. Bowker, Courtney M. Currier, Nick A. Cutler, Stephen C. Hart, Patrick E. Hayes, Zeng-Yei Hseu, Martin Kirchmair, Cecilia A. Perez, Sasha C. Reed, Victor M. Pena-Ramirez, Fernanda Santos, Christina Siebe, Benjamin W. Sullivan, Luis Weber-Grullon, Noah Fierer
2019, Proceedings of the National Academy of Sciences of the United States of America (116) 6891-6896
We do not know how and why belowground biodiversity may change as soils develop over centuries to millennia, hampering our ability to predict the myriad of ecosystem processes regulated by belowground organisms under changing environments. We conducted a global survey of 16 soil chronosequences spanning a wide range of ecosystem...
Microbial Fe(II) oxidation by Sideroxydans lithotrophicus ES-1 in the presence of Schlöppnerbrunnen fen derived humic acids
Anke Hadrich, Martial Taillefert, Denise Akob, Rebecca E. Cooper, Ulrike Litzba, Friedrich E. Wagner, Sandor Nietzsche, Valerian Ciobotta, Petra Rosch, Jurgen Popp, Kirsten Küsel
2019, FEMS Microbiology Ecology (94)
Controlled laboratory experiments were combined with field measurements to better understand the interactions between dissolved organic matter (DOM) and reduced iron in organic-rich peatlands. Addition of peat-derived humic acid extract (HA) to Sideroxydans lithotrophicus ES-1 liquid cultures led to higher cell numbers and up to 1.4 times higher Fe(II) oxidation...
Detection of Bisgaard taxon 40 in Rhinoceros Auklets (Cerorhinca monocerata) with pneumonia and septicemia from a mortality event in Washington, USA
Susan Knowles, Barbara Bodenstein, Brenda M. Berlowski-Zier, Susan M Thomas, Scott F Pearson, Jeffrey M. Lorch
2019, Journal of Wildlife Diseases (55) 246-249
We isolated Bisgaard taxon 40 from Rhinoceros Auklets (Cerorhinca monocerata) with pneumonia and septicemia from Washington, US, found dead in 2016. Previously isolated only from the respiratory tract of a gull (Laridae), little is known about its pathogenic potential and whether it acts as a primary or opportunistic pathogen....
Manipulating wild and tamed phytobiomes: Challenges and opportunities
Terrence H. Bell, Kevin L. Hockett, Ricardo Ivan Alcala-Briseno, Mary Barbercheck, Gwyn A. Beattie, Mary Ann Bruns, John E. Carlson, Taejung Chung, Alyssa Collins, Bryan Emmett, Paul Esker, Karen Garrett, Leland Glenna, Beth K. Gugino, Maria del Mar Jimenez-Gasco, Linda Kinkel, Jasna Kovac, Kurt P. Kowalski, Gretchen Kuldau, Johan H. J. Leveau, Matthew J. Michalska-Smith, Jessica Myrick, Kari Peter, Maria Fernanda Vivanco Salazar, Ashley Shade, Nejc Stopnisek, Xiaoquing Tan, Amy T. Welty, Kyle Wickings, Etienne Yergeau
2019, Phytobiomes Journal (3) 3-21
This white paper presents a series of perspectives on current and future phytobiome management, discussed at the Wild and Tamed Phytobiomes Symposium in University Park, PA, USA, in June 2018. To enhance plant productivity and health, and to translate lab- and greenhouse-based phytobiome research to field applications, the academic community...
Detrital K-feldspar Pb isotopic evaluation of extraregional sediment transported through an Eocene tectonic breach of southern California's Cretaceous batholith
Danielle Ziva Shulaker, Marty Grove, Jeremy K. Hourigan, Nicholas Van Buer, Glenn R. Sharman, Keith A. Howard, Jonathan Miller, Andrew P. Barth
2019, Earth and Planetary Science Letters (508) 4-17
Sedimentary provenance studies have come to be overwhelmingly based upon U–Pb geochronologic measurements performed with detrital zircon while alternative and potentially complementary approaches such as conglomerate clast studies and heavy mineral analysis have faded in importance. Measurement of Pb isotopic compositions in detrital K-feldspar is among the under-utilized approaches available to ascertain sedimentary source regions. While it has...
Modeling elk‐to‐livestock transmission risk to predict hotspots of brucellosis spillover
Nathaniel D. Rayl, Kelly Proffitt, Emily S. Almberg, Jennifer D. Jones, Jerod Merkle, Justin A. Gude, Paul C. Cross
2019, Journal of Wildlife Management (83) 817-829
Wildlife reservoirs of infectious disease are a major source of human‐wildlife conflict because of the risk of potential spillover associated with commingling of wildlife and livestock. In the Greater Yellowstone Ecosystem, the presence of brucellosis (Brucella abortus) in free‐ranging elk (Cervus canadensis) populations is of significant management concern because of...
Climate, streamflow, and lake-level trends in the Great Lakes Basin of the United States and Canada, water years 1960–2015
Parker A. Norton, Daniel G. Driscoll, Janet M. Carter
2019, Scientific Investigations Report 2019-5003
Water levels in the Great Lakes fluctuate substantially because of complex interactions among inputs (precipitation and streamflow), outputs (evaporation and outflow), and other factors. This report by the U.S. Geological Survey in cooperation with the Great Lakes Restoration Initiative was completed to describe trends in climate, streamflow, lake levels, and...
Characterizing the catastrophic 2017 Mud Creek Landslide, California, using repeat Structure-from-Motion (SfM) photogrammetry
Jonathan A. Warrick, Andrew C. Ritchie, Mark E. Reid, Kevin M. Schmidt, Joshua B. Logan
2019, Landslides (16) 1201-1219
Along the rugged coast of Big Sur, California, the Mud Creek landslide failed catastrophically on May 20, 2017 and destroyed over 400 m of scenic California State Highway 1. We collected structure-from-motion (SfM) photogrammetry data using airborne platforms that, when combined with existing airborne lidar data, revealed that the area...
Molecular characterization of Bathymodiolus mussels and gill symbionts associated with chemosynthetic habitats from the U.S. Atlantic margin
Dolly Coykendall, Robert S. Cornman, Nancy G. Prouty, Sandra Brooke, Amanda W. J. Demopoulos, Cheryl L. Morrison
2019, PLoS ONE (14)
Mussels of the genus Bathymodiolus are among the most widespread colonizers of hydrothermal vent and cold seep environments, sustained by endosymbiosis with chemosynthetic bacteria. Presumed species of Bathymodiolus are abundant at newly discovered cold seeps on the Mid-Atlantic continental slope, however morphological taxonomy is challenging, and their phylogenetic affinities remain...
Geomorphic survey of North Fork Eagle Creek, New Mexico, 2017
Alexander P. Graziano
2019, Open-File Report 2018-1187
About one-quarter of the water supply for the Village of Ruidoso, New Mexico, is derived from groundwater pumping along North Fork Eagle Creek in the Eagle Creek Basin near Alto, New Mexico. Because of concerns regarding the effects of groundwater pumping on surface-water hydrology in the Eagle Creek Basin and...
Effect of size-biased sampling on resource predictions from the three-part method for quantitative mineral resource assessment—A case study of the gold mines in the Timmins-Kirkland Lake area of the Abitibi greenstone belt, Canada:
Karl J. Ellefsen
2019, Scientific Investigations Report 2018-5149
The three-part method for quantitative mineral resource assessment is used by the U.S. Geological Survey to predict, within a specified assessment area, the number of undiscovered mineral deposits and the quantity of mineral resources in those undiscovered deposits. The effects of size-biased sampling on such predictions are evaluated in a...
Groundwater and surface-water data collection for Mason County, western Washington, 2016–18
Alison E. Tecca, Lonna M. Frans
2019, Data Series 1106
Groundwater levels and surface water flow measurements were collected from August 2016 to September 2018 to provide the Mason Conservation District and other stakeholders with basic knowledge of existing water resources in Mason County, Washington. Additionally, the data were collected with the intent of contributing to informed decision making about...
Stream sediment geochemistry of four small drainages on the north shore of Kauai west of Hanalei
Renee K. Takesue, Curt D. Storlazzi
2019, Open-File Report 2019-1007
Geochemical compositions of fine-grained stream sediment from four drainages on the north shore of the island of Kauai, Hawaii, west of Hanalei and two back-beach sites were explored to increase understanding about land-based runoff and ecological risk from runoff to nearshore coral communities. Stream and beach sediment were collected between...
Abundance and productivity of marbled murrelets (Brachyramphus marmoratus) off central California during the 2018 breeding season
Jonathan J. Felis, Emily C. Kelsey, Josh Adams
2019, Data Series 1107
Executive SummaryMarbled murrelets (Brachyramphus marmoratus) have been listed as “endangered” by the State of California and “threatened” by the U.S. Fish and Wildlife Service since 1992 in California, Oregon, and Washington. Information regarding marbled murrelet abundance, distribution, population trends, and habitat associations is critical for risk assessment, effective management, evaluation...
Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys in the Sepulveda Dam Basin, Los Angeles County, California—2018 data summary
Ryan E. Pottinger, Barbara E. Kus
2019, Data Series 1105
Executive SummaryWe surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) in cooperation with the U.S. Army Corps of Engineers along Bull Creek, Haskell Creek, and the Los Angeles River (Sepulveda Dam project area) in Los Angeles County, California, in 2018. Four vireo surveys were conducted between...
Functional divergence of thyrotropin beta-subunit paralogs gives new insights into salmon smoltification metamorphosis
Mitchell S Fleming, Gersende Maugars, Anne-Gaelle LaFont, Romain Fontaine, Finn-Arne Weltzien, Stephen D. McCormick
2019, Scientific Reports (9)
Smoltification is a metamorphic event in salmon life history, which initiates downstream migration and pre-adapts juvenile salmon for seawater entry. While a number of reports concern thyroid hormones and smoltification, few and inconclusive studies have addressed the potential role of thyrotropin (TSH). TSH is composed of a α-subunit common to...
Surface fire to Crown Fire: Fire history in the Taos Valley watersheds, New Mexico, USA
Lane B Johnson, Ellis Margolis
2019, Fire (2)
Tree-ring fire scars, tree ages, historical photographs, and historical surveys indicate that, for centuries, fire played different ecological roles across gradients of elevation, forest, and fire regimes in the Taos Valley Watersheds. Historical fire regimes collapsed across the three watersheds by 1899, leaving all sites without fire for at least...
North American Commission on Stratigraphic Nomenclature Note 69 – Application for addition of subseries/subepoch to the North American Stratigraphic Code
Marie-Pierre Aubry, Richard H. Fluegeman, Lucy E. Edwards, Brian R. Pratt, Carlton E. Brett
2019, Stratigraphy (15) 261-263
Consistency in stratigraphic nomenclature enables communication among scientists both regionally and globally, thus requiring the North American Stratigraphic Code, as presented by the North American Commission on Stratigraphic Nomenclature, to follow international convention. The ratification of three subseries of the Holocene by the InternationalUnion of Geological Sciences (IUGS) in June...
Improved enrichment factor calculations through principal component analysis: Examples from soils near breccia pipe uranium mines, Arizona, USA
Carleton R. Bern, Katherine Walton-Day, David L. Naftz
2019, Environmental Pollution (248) 90-100
The enrichment factor (EF) is a widely used metric for determining how much the presence of an element in a sampling media has increased relative to average natural abundance because of human activity. Calculation of an EF requires the selection of both a background composition and a reference element, choices...
Assessment of skin and liver neoplasms in white sucker (Catostomus commersonii) collected in the Sheboygan River Area of Concern, Wisconsin, in 2017
Vicki S. Blazer, Heather L. Walsh, Ryan P. Braham, Patricia M. Mazik
2019, Open-File Report 2019-1014
Two hundred adult white sucker (Catostomus commersonii), age 3 years and older, were collected from the lower Sheboygan River Area of Concern in 2017, during the spring spawning run. Fish were euthanized, weighed, and measured, and any visible abnormalities were documented. Pieces of raised skin lesions as well as five...
Respiratory selenite reductase from Bacillus selenitireducens strain MLS10
Michael L. Wells, Jennifer McGarry, Maissa M Gaye, Partha Basu, Ronald S. Oremland, John F. Stolz
2019, Journal of Bacteriology (201)
The putative respiratory selenite [Se(IV)] reductase (Srr) from Bacillus selenitireducens MLS10 has been identified through a polyphasic approach involving genomics, proteomics, and enzymology. Nondenaturing gel assays were used to identify Srr in cell fractions, and the active band was shown to contain a single protein of 80 kDa. The...
Migratory goose arrival time plays a larger role in influencing forage quality than advancing springs in an Arctic coastal wetland
Karen H. Beard, Ryan T. Choi, A. Joshua Leffer, Lindsay Carlson, Katharine C. Kelsey, Joel A. Schmutz, Jeffrey Welker
2019, PLoS ONE (14)
With warmer springs, herbivores migrating to Arctic breeding grounds may experience phenological mismatches between their energy demands and the availability of high quality forage. However, the timing of high quality forage relative to the timing of grazing is often unknown. In coastal western Alaska, approximately one million migratory geese arrive...
Antipredator response diminishes during periods of resource deficit for a large herbivore
Brendan A. Oates, J.A. Merkle, Matthew Kauffman, S.R. Dewey, M.D. Jimenez, J.M. Vartanian, S.A. Becker, J.R. Goheen
2019, Ecology (100)
The starvation-predation hypothesis predicts that, during resource shortages, prey forego antipredator behavior and forage as much as possible to avoid starvation, even when risk of predation is high. We tested this hypothesis using GPS locations collected simultaneously from moose (Alces alces) and wolves (Canis lupus) in the Greater Yellowstone Ecosystem...
Winter precipitation and summer temperature predict lake water quality at macroscales
S. M. Collins, S. Yuan, P. N. Tan, S. K. Oliver, J. F. Lapierre, K. S. Cheruvelil, C. E. Fergus, N. K. Skaff, J. Stachelek, Tyler Wagner, P. A. Soranno
2019, Water Resources Research (55) 2708-2721
Climate change can have strong effects on aquatic ecosystems, including disrupting nutrient cycling and mediating processes that affect primary production. Past studies have been conducted mostly on individual or small groups of ecosystems, making it challenging to predict how future climate change will affect water quality at broad scales. We...
