Fishway entrance gate experiments with adult American Shad
Kevin Mulligan, Alexander J. Haro, Brett Towler, Bryan Sojkowski, John Noreika
2019, Water Resources Research (55) 10839-10855
The goal of this multiyear study was to examine how changes to an upstream fishway entrance impacted the passage rate of adult American shad (Alosa sapidissima). We evaluated a total of nine treatment conditions that consisted of three fishway entrance gate types and three submergence depths (i.e., the water surface...
Review of and recommendations for monitoring contaminants and their effects in the San Francisco Bay−Delta
Richard E Connon, Simone Hasenbein, Susanne M. Brander, Helen C. Poynton, Erika B Holland, Daniel Schlenk, James Orlando, Michelle L. Hladik, Tracy K. Collier, Nathaniel L Scholz, John P Incardona, Nancy D. Denslow, Amro Hamdoun, Sascha Nicklisch, Natalia Garcia-Reyero, Edward J. Perkins, Evan P Gallagher, Xin Deng, Dan Wang, Stephanie Fong, Richard S Breuer, Mehrdad Hajibabei, James B Brown, John K Colbourne, Thomas M Young, Gary Cherr, Andrew Whitehead, Anne E. Todgham
2019, San Francisco Estuary and Watershed Science (17)
Legacy and current-use contaminants enter into and accumulate throughout the San Francisco Bay−Delta (Bay−Delta), and are present at concentrations with known effects on species important to this diverse watershed. There remains major uncertainty and a lack of focused research able to address and provide understanding of effects across multiple biological...
Simultaneous autoregressive (SAR) model
Mevin Hooten, Jay M. Ver Hoef, Ephraim M. Hanks
2019, Book chapter, Wiley StatsRef: Statistics reference online
Simultaneous autoregressive (SAR) models are useful for accommodating various forms of dependence among data that have discrete support in a space of interest. These models are often specified hierarchically as mixed-effects regression models with first-moment structure controlled by a conventional linear regression term and second-moment structure induced by correlated random...
On the utilization of synthetic and measured earthquake ground motions for designing building monitoring systems in the near-field of major faults
Floriana Petrone, David McCallen, Mehmet Celebi
Mamun Miah, editor(s)
2019, Conference Paper, Structural health monitoring 2019: Enabling intelligent life-cycle health management for industry internet of things (IIOT)
Agencies and research groups engaged in studying measures for enhancing the resiliency of communities have recently placed emphasis on the need for extensive implementation of monitoring systems for rapid post-event assessment of structural integrity. Designing a monitoring system for a building requires a thorough knowledge of its potential nonlinear dynamic...
Floodplain inundation spectrum across the United States
Durelle T. Scott, Jesus D. Gomez-Velez, C. Nathan Jones, Judson Harvey
2019, Nature Communications (10)
Floodplain inundation poses both risks and benefits to society. In this study, we characterize floodplain inundation across the United States using 5800 stream gages. We find that between 4% and 12.6% of a river’s annual flow moves through its floodplains. Flood duration and magnitude is greater in...
Response of nitrogen loading to the Chesapeake Bay to source reduction and land use change scenarios: A SPARROW‐informed analysis
Matthew P. Miller, Paul D. Capel, Ana M. Garcia, Scott W. Ator
2019, Journal of the American Water Resources Association (56) 100-112
In response to concerns regarding the health of streams and receiving waters, the United States Environmental Protection Agency established a total maximum daily load for nitrogen in the Chesapeake Bay watershed for which practices must be in place by 2025 resulting in an expected 25% reduction in load from 2009...
The U. S. Geological Survey’s approach to analysis ready data
Cody Anderson, Steven Labahn, Dennis Helder, Gregory L. Stensaas, Christopher Engebretson, Christopher J. Crawford, Calli B. Jenkerson, Christopher Barnes
2019, Conference Paper, IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium
Analysis Ready Data (ARD) is a recent concept in Earth observing remote sensing which encompasses many different initiatives by individual imagery providers and collaborative international organizations working towards easing/minimizing data preprocessing required by users. This allows users to spend more time on analysis and less time on downloading, formatting, and...
Instructions for running the analytical code PAT (Purge Analyzer Tool) for computation of in-well time of travel of groundwater under pumping conditions
P.T. Harte, B. J. Huffman, Tomas Perina, Herb Levine, Daewon Rojas-Mickelson
2019, Open-File Report 2019-1104
IntroductionUnderstanding the optimal time needed to purge a well while pumping to collect a representative groundwater sample requires an understanding of groundwater flow in wells (in-well flow). Parameters that affect in-well flow include the hydraulic properties of the aquifer, well construction, drawdown from pumping, and pump rate. The time of...
Using stream-side groundwater discharge for geochemical exploration in mountainous terrain
Andrew H. Manning, Jean M. Morrison, Richard Wanty, Christopher T. Mills
2019, Journal of Geochemical Exploration (209)
Groundwater chemistry has been predominantly used in geochemical exploration studies to identify mineralized targets concealed under transported cover in areas with gentle topography. Another potentially valuable ap-plication that has received little attention is using groundwater chemistry to identify deposits concealed within mountain ridges. A number of geochemical exploration studies have...
Adult monarch (Danaus plexippus) abundance is higher in burned sites than in grazed sites
Julia B. Leone, Diane L. Larson, Jennifer L. Larson, Patrick Pennarola, Karen Oberhauser
2019, Frontiers in Ecology and Evolution (7)
Much of the remaining suitable habitat for monarchs (Danaus plexippus) in Minnesota is found in tallgrass prairies. We studied the association of adult monarch abundance with use of fire or grazing to manage prairies. Sites (n=20) ranged in size from 1 to 145 hectares and included land owned and managed...
The power, potential, and pitfalls of open access biodiversity data in range size assessments: Lessons from the fishes
Abigail Benson
2019, Ecological Indicators (110)
Geographic rarity is a driver of a species’ intrinsic risk of extinction. It encompasses multiple key components including range size, which is one of the most commonly measured estimates of geographic rarity. Range size estimates are often used to prioritize conservation efforts when there are multiple candidate species, because data...
Unintentional and intentional poisoning or harassment of cranes related to agriculture
Jane E. Austin
2019, Book chapter, Crane conservation strategy
No abstract available....
Changes in agricultural land use and practices
Jane E. Austin
2019, Book chapter, Crane conservation strategy
No abstract available....
Using the STARS model to evaluate the effects of the proposed action for the reinitiation of consultation on the coordinated long-term operation of the Central Valley and State Water Project
Russell W. Perry, Adam C. Pope, Vamsi K. Sridharan
2019, Open-File Report 2019-1125
In 2016, the U.S. Bureau of Reclamation (USBR) and California Department of Water Resources requested a reinitiation of consultation under Section 7 of the Endangered Species Act on the coordinated long-term operations of the Central Valley and State Water Projects. This resulted in a Biological Assessment released by USBR in...
Wind sheltering impacts on land-atmosphere fluxes over fens
Jessica Turner, Ankur R. Desai, Jonathan Thom, Kimberly P. Wickland, Brent Olson
2019, Frontiers in Environmental Science
Wetlands and their ability to mitigate climate change motivates restorative and protective action; however, scientific understanding of land-atmosphere interactions is restricted by our limited continuous observations of gaseous fluxes. Many wetlands are small in spatial scale and embedded in forested landscapes. Yet, little is known about how the relative sheltering...
Quality of surface water in Missouri, water year 2018
Robert T. Kay
2019, Data Series 1119
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a network of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network. During water year 2018 (October 1, 2017, through September 30, 2018), water-quality data were collected at...
Interglacial paleoclimate in the Arctic
Thomas M. Cronin, Katherine Keller, Jesse R. Farmer, Morgan Schaller, Matt O’Regan, Robert K. Poirier, Helen Coxall, Gary S. Dwyer, Henning Bauch, Ingalise G. Kindstedt, Martin Jakobsson, R. E. Marzen, Emiliano Santin
2019, Paleoceanography and Paleoclimatology (34) 1959-1979
Marine Isotope Stage 11 from ~424 to 374 ka experienced peak interglacial warmth and highest global sea level ~410–400 ka. MIS 11 has received extensive study on the causes of its long duration and warmer than Holocene climate, which is anomalous in the last half million years. However, a major...
Geologic field photograph map of the Grand Canyon region, 1967–2010
George H. Billingsley, Gregory Goodwin, Sarah E. Nagorsen, Monica E. Erdman, Jason T. Sherba
2019, General Information Product 189
The Grand Canyon geologic field photograph collection contains 1,211 geotagged photographs collected during 43 years of geologic mapping from 1967 to 2010. The photographs document some key geologic features, structures, and rock unit relations that were used to compile nine geologic maps of the Grand Canyon region published at 1:100,000...
Pre‐fire vegetation drives post‐fire outcomes in sagebrush ecosystems: Evidence from field and remote sensing data
Brittany S. Barker, David S. Pilliod, Matthew Rigge, Collin G. Homer
2019, Ecosphere (10)
Understanding the factors that influence vegetation responses to disturbance is important because vegetation is the foundation of food resources, wildlife habitat, and ecosystem properties and processes. We integrated vegetation cover data derived from field plots and remotely sensed Landsat images in two focal areas over a 37‐yr period (1979–2016) to...
Comment on “Interpretation of Kappa and fmax filters as source effect”, by Igor A. Beresnev
Arthur D. Frankel
2019, Bulletin of the Seismological Society of America (109) 2762-2763
Beresnev (2019) advocates the use of an earthquake slip function that produces an ω-2.5 high-frequency falloff of Fourier displacement spectra in the far field, where ω denotes the angular frequency. He argues that the observed high-frequency decay of earthquake spectra can be adequately modeled by this ω-2.5 falloff, without needing...
Standardized IMGT nomenclature of salmonidae IGH genes, the paradigm of Atlantic salmon and rainbow trout: From genomics to repertoires
Susana Magadan, Aleksei Krasnov, Saida Hadi-Saljoki, Sergey Afanasyev, Stanislas Mondot, Rosario Castro, Irene Salinas, Oriol Sunyer, John D. Hansen, Ben F Koop, Marie-Paule Lefranc, Pierre Boudinot
2019, Frontiers in Immunology (10)
In teleost fish as in mammals, humoral adaptive immunity is based on B lymphocytes expressing highly diverse immunoglobulins (IG). During B cell differentiation, IG loci are subjected to genomic rearrangements of V, D, and J genes, producing a unique antigen receptor expressed on the surface of each lymphocyte. During the...
The importance of natural versus human factors for ecological conditions of streams and rivers
Tao Tang, R. Jan Stevenson, James Grace
2019, Science of the Total Environment (704)
Streams are influenced by watershed-scale factors, such as climate, geology, topography, hydrology, and soils, which mostly vary naturally among sites, as well as human factors, agriculture and urban development. Thus, natural factors could complicate assessment of human disturbance. In the present study, we use structural equation modeling and data from...
Seasonal epilimnetic temperature patterns and trends in a suite of lakes from Wisconsin (USA), Germany and Finland
Richard C. Lathrop, Peter Kasprzak, Marjo Tarvainen, Anne-Mari Ventela, Tapio Keskinen, Rainer Koschel, Dale M. Robertson
2019, Inland Waters (9) 471-488
Epilimnetic temperatures from the early 1980s through 2017 were analyzed for 12 Wisconsin, German and Finnish lakes. Seasonal temperature metrics exhibited large interannual variability with trends differing among regions. In the Wisconsin lakes, only late summer and fall temperatures increased significantly. In the northeastern Germany lakes, temperatures increased in all...
Spatio-temporal variability of human-fire interactions on the Navajo Nation
Christopher H. Guiterman, Ellis Q. Margolis, Christopher H. Baisan, Donald A. Falk, Craig D. Allen, Thomas W. Swetnam
2019, Ecosphere (10)
Unraveling the effects of climate and land-use on historical fire regimes provides important insights into broader human-fire-climate dynamics, which are necessary for ecologically-based forest management. We developed a spatial human land-use model for Navajo Nation forests across which we sampled a network of tree-ring fire history sites to reflect contrasting...
A statistical forecasting approach to metapopulation viability analysis
Paige E. Howell, Blake R. Hossack, Erin L. Muths, Brent Sigafus, A Chenevert-Steffler, Richard B. Chandler
2019, Ecological Applications (30)
Conservation of at‐risk species is aided by reliable forecasts of the consequences of environmental change and management actions on population viability. Forecasts from conventional population viability analysis (PVA) are made using a two‐step procedure in which parameters are estimated, or elicited from expert opinion, and then...
