Behavioral responses of sea lamprey to varying application rates of a synthesized pheromone in diverse trapping scenarios
Nicholas S. Johnson, Sean A. Lewandoski, Bethany Alger, Lisa M. O’Connor, Gale Bravener, Peter J. Hrodey, Belinda Huerta, Jessica Barber, Weiming Li, C. Michael Wagner, Michael J Siefkes
2020, Journal of Chemical Ecology (46) 233-249
Use of the first fish pheromone biopesticide, 3-keto petromyzonol sulfate (3kPZS) in sea lamprey (Petromyzon marinus) control requires an understanding of both how the amount 3kPZS applied to a trap relates to catch, and how that relationship varies among stream types. By conducting 3kPZS dose-response experiments over two years and...
Seafloor change around the Mississippi barrier islands, 1920 to 2016—The influence of storm effects on inlet and island morphodynamics
James Flocks, Noreen A. Buster, Owen T. Brenner
2020, Open-File Report 2019-1140
The Mississippi Barrier Islands in the northern Gulf of Mexico experienced high rates of spatial change over recorded history. Wave-induced sediment transport induced island migration, landward retreat, and inlet evolution. These processes can be measured using repeat bathymetric surveys to analyze elevation change over time. This study analyzes digital elevation...
Non-crop habitat use by wild bees (Hymenoptera: Apoidea) in a mixed-use agricultural landscape
Brianne Du Clos, Cyndy Loftin, Francis A. Drummond
2020, Environmental Entomology (49) 502-515
Homogeneous, agriculturally intense landscapes have abundant records of pollinator community research, though similar studies in the forest-dominated, heterogeneous mixed-use landscape that dominates the northeastern United States are sparse. Trends of landscape effects on wild bees are consistent across homogeneous agricultural landscapes, whereas reported studies in the northeastern United States...
Hawaii as a microcosm: Advancing the science and practice of managing introduced and invasive species
Liba Pejchar, Christopher A. Lepczyk, Jean E Fantle-Lepczyk, Steve C. Hess, M. Tracy Johnson, Christina Leopold, Michael P. Marchetti, Katherine M McClure, Aaron B Sheils
2020, BioScience (70) 184-193
Invasive species are a leading driver of global change, with consequences for biodiversity and society. Because of extraordinary rates of endemism, introduction, and extinction, Hawaii offers a rich platform for exploring the cross-disciplinary challenges of managing invasive species in a dynamic world. We highlight key successes and shortcomings to share...
Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California
Adrian J. Das, Nicholas J. Ampersee, Anne Hopkins Pfaff, Nathan L. Stephenson, Tedmund J Swiecki, Elizabeth A Bernhardt, Patricia Haggerty, Koren R. Nydick
2020, Madroño (66) 164-175
Blue oak woodlands in California have been a focus of conservation concern for many years. Numerous studies have found that existing seedling and sapling numbers are inadequate to sustain current populations, and recent work has suggested that blue oak woodlands might be particularly vulnerable to a warming climate. California has...
Evaluation of hydrologic impact of an irrigation curtailment program in the Upper Klamath Lake Basin using Landsat satellite data
Naga Manohar Velpuri, Gabriel Senay, Matthew Schauer, C. Amanda Garcia, Ramesh Singh, MacKenzie Friedrichs, Stefanie Bohms, Jonathan V. Haynes, Terrence D. Conlon
2020, Hydrological Processes (34) 1697-1713
Upper Klamath Lake (UKL) is the source of the Klamath river that flows through southern Oregon and northern California. The UKL basin is home to two endangered species and provides water for 81,000+ ha (200,000+ acres) of irrigation on the United States Bureau of Reclamation (USBR) Klamath Project located downstream...
A high-resolution seismic catalog for the initial 2019 Ridgecrest Earthquake sequence: Foreshocks, aftershocks, and faulting complexity
David R. Shelly
2020, Seismological Research Letters (91) 1971-1978
I use template matching and precise relative relocation techniques to develop a high-resolution earthquake catalog for the initial portion of the 2019 Ridgecrest earthquake sequence, from July 4-16, encompassing the foreshock sequence and the first 10+ days of aftershocks following the Mw 7.1 mainshock. Using 13,525 routinely cataloged events as...
Revision of Boore (2018) Ground‐motion predictions for Central and Eastern North America: Path and offset adjustments and extension to 200 m/s <= Vs30 <= 3000 m/s
David Boore
2020, Seismological Research Letters (91) 977-991
The three sets of ground‐motion predictions (GMPs) of Boore (2018; hereafter, B18) are compared with a much larger dataset than was used in deriving the predictions. The B18 GMPs work well for response spectra at periods between ∼0.15"><span id="MathJax-Span-39"...
Caltech/USGS Southern California Seismic Network (SCSN) and Southern California Earthquake Data Center (SCEDC): Data availability for the 2019 Ridgecrest sequence
Egill Hauksson, Clara Yoon, Ellen Yu, Jennifer Andrews, Mark Alvarez, Rayo Bhadha, Valerie Thomas
2020, Seismological Research Letters (91) 1961-1970
The 2019 M6.4 and M7.1 Ridgecrest earthquake sequence occurred in the eastern California shear zone (ECSZ). The mainshock ruptured the Little Lake fault zone and aftershocks extended from the Garlock fault in the south, to the southern end of the 1872 M7.5 Owens Valley earthquake rupture in the north. We present data from...
Estimating burn severity and carbon emissions from a megafire in boreal forests of China
Wenru Xu, Hong S He, Todd Hawbaker, Zhiliang Zhu, Paul Henne
2020, Science of the Total Environment (716)
Wildfires, especially those of large size, worsen air quality and alter the carbon cycle through combustion of large quantities of biomass and release of carbon into the atmosphere. The Black Dragon fire, which occurred in 1987 in the boreal forests of China is among the top five of such megafires...
Advanced biofilm analysis in streams receiving organic deicer runoff
Michelle A Nott, Heather E. Driscoll, Minoru Takeda, Mahesh Vangala, Steven Corsi, Scott W. Tighe
2020, PLoS ONE (15)
Prolific heterotrophic biofilm growth is a common occurrence in airport receiving streams containing deicers and anti-icers, which are composed of low-molecular weight organic compounds. This study investigated biofilm spatiotemporal patterns and responses to concurrent and antecedent (i.e., preceding biofilm sampling) environmental conditions at stream sites upstream and downstream from Milwaukee...
An experimental investigation of interaction between andesite and hyperacidic volcanic lake water
Vincent van Hinsberg, Kim Berlo, Jacob B. Lowenstern
2020, Minerals (10)
Alteration in magmatic-hydrothermal systems leads to distinct changes in rock texture and mineralogy, and a strong redistribution of elements between fluid and rock. Here, we experimentally interacted andesite scoria with hyperacidic, high-sulfidation style fluids from Kawah Ijen volcano (Indonesia) at 25 and 100˚C, seeking to reproduce the textures observed in...
Fire history across forest types in the southern Beartooth Mountains, Wyoming
Sabrina R. Brown, Ashley Baysinger, Peter M. Brown, Justin L. Cheek, Jeffrey M. Diez, Christopher M. Gentry, Thomas A. Grant, Jeannine-Marie St-Jacques, David A. Jordan, Morgan L. Leef, Mary K. Rourke, James H. Speer, Carrie E. Spradlin, Jens Stevens, Jeffery R. Stone, Brian Van Winkle, Nickolas E. Zeibig-Kichas
2020, Tree-Ring Research (76) 27-39
Fire is a critical ecosystem process that has played a key role in shaping forests throughout the Beartooth Mountains in northwestern Wyoming. The highly variable topography of the area provides ideal conditions to compare fire regimes across contiguous forest types, yet pyro-dendrochronological research in this area is limited. We reconstructed...
Recent evaluation of corbicula form D distribution in the Midwest, U.S.A
Sarah Douglass, Emily Reasor, Jeremy S. Tiemann, Alison Stodola, Stephen E. McMurray, Barry C. Poulton
2020, The American Midland Naturalist (183) 136-142
The genus Corbicula contains one of the most common and successful aquatic invasive species to North America. Prior to 2015 two predominant species of Corbicula were known from the United States—C. fluminea and C. largillierti, referred to as Forms A and B, respectively. Form A has spread throughout most of the U.S., while Form B is...
Looking at the bigger picture: How abundance of nesting and brooding habitat influences lek-site selection by Lesser Prairie-Chickens
Jacquelyn M. Gehrt, Daniel S. Sullins, David A. Haukos
2020, American Midland Naturalist (183) 52-77
Lesser Prairie-Chicken (Tympanuchus pallidicinctus) populations have declined throughout most of their distribution since the mid-1980s. These declines are largely attributed to loss of habitat through the conversion and expansion of cropland, construction of oil wells and other anthropogenic features on the landscape, and grazing intensification. Changes in habitat availability and...
Evaluation of ground‐motion models for U.S. Geological Survey seismic hazard forecasts: Hawaii tectonic earthquakes and volcanic eruptions
Daniel E. McNamara, Emily Wolin, Peter M. Powers, Allison Shumway, Morgan P. Moschetti, John Rekoske, Eric M. Thompson, Charles Mueller, Mark D. Petersen
2020, Bulletin of the Seismological Society of America (110) 666-688
The selection and weighting of ground‐motion models (GMMs) introduces a significant source of uncertainty in U.S. Geological Survey (USGS) National Seismic Hazard Modeling Project (NSHMP) forecasts. In this study, we evaluate 18 candidate GMMs using instrumental ground‐motion observations of horizontal peak ground acceleration (PGA) and 5%‐damped pseudospectral acceleration (0.02–10 s) for...
A chemo-mechanical snapshot of in-situ conversion of kerogen to petroleum
Arash Abarghani, Mehdi Ostadhassan, Paul C. Hackley, Andrew E. Pomerantz, Siamak Nejati
2020, Geochimica et Cosmochimica Acta (273) 37-50
Organic matter (OM) from various biogenic origins converts to solid bitumen in-situ when it undergoes thermal maturation. It is well documented that during this process, the ratios of both hydrogen and oxygen to carbon will decrease, resulting in an increase in OM aromaticity and molecular chemo-mechanical homogeneity. Although there have been extensive...
Antimony mobility during the early stages of stibnite weathering in tailings at the Beaver Brook Sb deposit, Newfoundland
Anezka Borcinova Radkova, Heather E. Jamieson, Kate M. Campbell
2020, Applied Geochemistry (115)
The aqueous speciation and mineralogy of antimony (Sb) in waters and tailings at Beaver Brook antimony deposit have been analyzed to understand Sb mobility during the initial stages of stibnite (Sb2S3) weathering in a near-surface environment. Dissolution of stibnite in oxidizing conditions releases Sb in drainage water and Sb is...
Introgression obscures lineage boundaries and phylogeographic history in the western banded gecko, Coleonyx variegatus (Squamata: Eublepharidae)
Dean H Leavitt, Bradford Hollingsworth, Robert N. Fisher, Tod W Reeder
2020, Zoological Journal of the Linnean Society (190) 181-226
The geomorphological formation of the Baja California peninsula and the Gulf of California is a principal driver of diversification for the reptiles of North America’s warm deserts. The western banded gecko, Coleonyx variegatus, is distributed throughout the Mojave, Sonoran and Peninsular deserts. In this study we use multilocus sequence data to...
Dunes in the world's big rivers are characterized by low-angle lee-side slopes and a complex shape
Julia Cisneros, Jim L. Best, Thaienne van Dijk, Renato Paes de Almeida, Mario Amsler, Justin A. Boldt, Bernardo Freitas, Cristiano Galeazzi, Richard J. Huizinga, Marco Ianniruberto, Hongbo Ma, Jeff Nittrouer, Kevin Oberg, Oscar Orfeo, Daniel Parsons, Ricardo N. Szupiany, Ping Wang, Yuanfeng Zhang
2020, Nature Geoscience (13) 156-162
Dunes form critical agents of bedload transport in all of the world’s big rivers, and constitute appreciable sources of bed roughness and flow resistance. Dunes also generate stratification that is the most common depositional feature of ancient riverine sediments. However, current models of dune dynamics and stratification are conditioned by...
Shifts in hatching date of American crocodile (Crocodylus acutus) in southern Florida
Michael Cherkiss, James I. Watling, Laura A. Brandt, Frank J. Mazzotti, Jim Linsay, Jeffrey S. Beauchamp, Jerome J. Lorenz, Joseph Wasilewski, Ikuko Fujisaki, Kristen Hart
2020, Journal of Thermal Biology (88)
Globally temperature of marine environments is on the rise and temperature plays an important role in the life-history of reptiles. In this study, we examined the relationship between sea surface temperature and average date of hatching for American crocodiles (Crocodylus acutus) over a 37-year period at two nesting sites, Everglades...
Estimating detection probability for Burmese Pythons with few detections and zero recapture events
Melia G. Nafus, Frank J. Mazzotti, Robert Reed
2020, Journal of Herpetology (54) 24-30
Detection has been a long-standing challenge to monitoring populations of cryptic herpetofauna, which often have detection probabilities that are closer to zero than one. Burmese Pythons (Python bivittatus =Python molurus bivittatus), a recent invader in the Greater Everglades Ecosystem of Florida, are cryptic snakes that have long periods of inactivity....
A hierarchical analysis of habitat area, connectivity, and quality on amphibian diversity across spatial scales
AD Wright, Evan H. Campbell Grant, EF Zipkin
2020, Landscape Ecology (35) 529-544
Habitat fragmentation can alter species distributions and lead to reduced diversity at multiple scales. Yet, the literature describing fragmentation effects on biodiversity patterns is contradictory and inconclusive, possibly because most studies fail to integrate spatial scale into experimental designs and statistical analyses. As a result, it is difficult to extrapolate...
Influence of land use and region on glyphosate and aminomethylphosphonic acid in streams in the USA
Laura Medalie, Nancy T. Baker, Megan E. Shoda, Wesley W. Stone, Michael T. Meyer, Edward G. Stets, Michaelah C. Wilson
2020, Science of the Total Environment (707)
Glyphosate is the most widely used herbicide in the United States for agricultural and non-agricultural weed control. Many studies demonstrate possible effects of glyphosate and its degradate AMPA on human and ecological health. Although glyphosate is thought to have limited mobility in soil, it is found year-round in many rivers...
Genetic confirmation of a natural hybrid between a Northern Goshawk (Accipiter gentilis) and a Cooper’s Hawk (A. cooperii)
Christy Haughey, Arthur Nelson, Paul Napier, R. N. Rosenfield, Sarah A. Sonsthagen, Sandra L. Talbot
2020, Wilson Journal of Ornithology (131) 838-844
Although hybrids between captive Accipiter species are known, and hybrids between wild Accipiter species in North America have long been suspected, none have been confirmed to date. However, in 2014, a hatching year Accipiter captured at Cape May, New Jersey, during fall migration, appeared intermediate in size and plumage between...
