Maturation study of vitrinite in carbonaceous shales and coals: Insights from hydrous pyrolysis
Divya K. Mishra, Paul C. Hackley, Aaron M. Jubb, Margaret M. Sanders, Shailesh Agrawal, Atul K. Varma
2022, International Journal of Coal Geology (259)
The presence of vitrinite in sedimentary rocks of post-Silurian age allows its reflectance to be used to estimate the thermal maturation of organic matter in petroleum systems. Increasing reflectance of vitrinite, which is primarily driven by aromaticity, depends primarily on the time and temperature attributes of its evolutionary pathway. This...
Reproductive indices and observations of mass ovarian follicular atresia in hatchery-origin pallid sturgeon
Tanner L. Cox, Christopher S. Guy, Luke M. Holmquist, Molly A. H. Webb
2022, Journal of Applied Ichthyology (38) 391-402
The Pallid Sturgeon (Scaphirhynchus albus) Conservation Propagation and Stocking Program began stocking in the Missouri River above Fort Peck Reservoir in 1998 with 1997-year-class pallid sturgeon. Within the 1997-year class, all hatchery-origin pallid sturgeon females that reached reproductive maturation by 2016 underwent mass ovarian follicular atresia. Using combined historical and...
Application of a soil-water-balance model to estimate annual groundwater recharge for Long Island, New York, 1900–2019
Jason S. Finkelstein, Jack Monti Jr., John P. Masterson, Donald A. Walter
2022, Scientific Investigations Report 2021-5143
A soil-water-balance (SWB) model was developed for Long Island, New York, to estimate the potential amount of annual groundwater recharge to the Long Island aquifer system from 1900 to 2019. The SWB model program is a computer code based on a modified Thornthwaite-Mather SWB approach and uses spatially and temporally...
Data-driven modeling of wind waves in upper Delaware Bay with living shorelines
Nan Wang, Q. Chen, Ling Zhu, Hongqing Wang
2022, Ocean Engineering (257)
Living shoreline projects have been built to preserve coastal ecosystems under future climate change and sea level rise. To quantify the wave power variation across living shorelines, the wave characteristics around the constructed oyster reefs (CORs) in upper Delaware Bay were investigated in this study. Wave parameters seaward and shoreward...
Assessing wave attenuation with rising sea levels for sustainable oyster reef-based living shorelines
Reza Salatin, Hongqing Wang, Q. Chen, Ling Zhu
2022, Frontiers in Built Environment (8)
In densely populated coastal areas with sea-level rise (SLR), protecting the shorelines against erosion due to the wave impact is crucial. Along with many engineered structures like seawalls and breakwaters, there are also green structures like constructed oyster reefs (CORs) that can not only attenuate the incident waves...
Seismostratigraphic analysis of Lake Cahuilla sedimentation cycles and fault displacement history beneath the Salton Sea, California, USA
Daniel Brothers, Neal W. Driscoll, Graham Kent, Robert L. Baskin, Alistair J. Harding, Annie Kell
2022, Geosphere (18) 1354-1376
The Salton Trough (southeastern California, USA) is the northernmost transtensional stepover of the Gulf of California oblique-divergent plate boundary and is also where the southern terminus of the San Andreas fault occurs. Until recently, the distribution of active faults in and around the Salton...
Enumerating plausible multifault ruptures in complex fault systems with physical constraints
Kevin R. Milner, Bruce E. Shaw, Edward H. Field
2022, Bulletin of the Seismological Society of America (112) 1806-1824
We propose a new model for determining the set of plausible multifault ruptures in an interconnected fault system. We improve upon the rules used in the Third Uniform California Earthquake Rupture Forecast (UCERF3) to increase connectivity and the physical consistency of ruptures. We replace UCERF3’s simple azimuth change rules with...
A framework for ensemble modelling of climate change impacts on lakes worldwide: The ISIMIP lake sector.
Malgorzata Golub, Wim Thiery, Rafael Marce, Don Pierson, Inne Vanderkelen, Daniel Mercado-Bettin, R. Iestyn Woolway, Luke Grant, Eleanor Jennings, Benjamin Kraemer, Jacob Schewe, Fang Zhao, Katja Frieler, Matthias Mengel, Vasiliy Y. Bogomolov, Damian Bouffard, Marianne Cote, Raoul-Marie Couture, Andrey V. Debolskiy, Bram Droppers, Gideon Gal, Mingyang Guo, Annette B. G. Janssen, Georgiy Kirillin, Robert Ladwig, Madeline Magee, Tadhg Moore, Marjorie Perroud, Sebastiano Piccolroaz, Love Raaman Vinnea, Martin Schmid, Tom Shatwell, Victor M. Stepanenko, Zeli Tan, Bronwyn Woodward, Huaxia Yao, Rita Adrian, Mathew Allan, Orlane Anneville, Lauri Arvola, Karen Atkins, Leon Boegman, Cayelan C. Carey, Kyle Christianson, Elvira de Eyto, Curtis L. DeGasperi, Maria Grechushnikova, Josef Hejzlar, Klaus Joehnk, Ian D. Jones, Alo Laas, Eleanor B. MacKay, Ivan Mammarella, Hampus Markensten, Christopher G. McBride, Deniz Özkundakci, Miguel Potes, Karsten Rinke, Dale M. Robertson, James A. Rusak, Rui Salgado, Leon van der Linden, Piet Verburg, Danielle Wain, Nicole K. Ward, Sabine Wollrab, Galina Zdorovennova
2022, Geoscientific Model Development (15) 4297-4623
Empirical evidence demonstrates that lakes and reservoirs are warming across the globe. Consequently, there is an increased need to project future changes in lake thermal structure and resulting changes in lake biogeochemistry in order to plan for the likely impacts. Previous studies of the impacts of climate change on lakes...
Statistical assessment on determining local presence of rare bat species
Kathryn M. Irvine, Katharine M. Banner, Christian Stratton, W. Mark Ford, Brian E. Reichert
2022, Ecosphere (13)
Surveying cryptic, sparsely distributed taxa using autonomous recording units, although cost-effective, provides imperfect knowledge about species presence. Summertime bat acoustic surveys in North America exemplify the challenges with characterizing sources of uncertainty: observation error, inability to census populations, and natural stochastic variation. Statistical uncertainty, if not...
Adaptive problem maps (APM): Connecting data dots to build increasingly informed and defensible environmental conservation decisions
Martha E. Mather, John M. Dettmers
2022, Journal of Environmental Management (312)
Connecting individual datasets from different projects to each other and to decisions can help manager-researcher-administrator teams build on what is known and adapt their environmental decision-making process as new information becomes available. Throughout their careers, environmental professionals often collect data on many individual projects that address similar sets of natural...
Remote sensing of field-scale irrigation withdrawals in the central Ogallala aquifer region
Steven S Filippelli, Matthew R Sloggy, Jody C. Vogeler, Dale T Manning, Christopher Goemans, Gabriel B. Senay
2022, Agricultural Water Management (271)
For agricultural areas facing water scarcity, sustainable water use policy relies on irrigation information that is timely and at a high resolution, but existing publicly available water use data are often insufficient for monitoring compliance or understanding the influence of policy on individual farmer decisions. This study attempts to fill...
Implementation plan of the National Cooperative Geologic Mapping Program strategy — Appalachian Piedmont and Blue Ridge Provinces
Arthur J. Merschat, Mark W. Carter, 2018 Piedmont and Blue Ridge Working Group
2022, Open-File Report 2022-1050
The National Cooperative Geologic Mapping Program is publishing a strategic plan titled “Renewing the National Cooperative Geologic Mapping Program as the Nation’s Authoritative Source for Modern Geologic Knowledge.” The plan provides a vision, mission, and goals for the program for the years 2020–30:Vision: create an integrated, three-dimensional, digital geologic map...
Bayesian inverse reinforcement learning for collective animal movement
Toryn L. J. Schafer, Christopher K. Wikle, Mevin Hooten
2022, Annals of Applied Statistics (16) 999-1013
Agent-based methods allow for defining simple rules that generate complex group behaviors. The governing rules of such models are typically set a priori, and parameters are tuned from observed behavior trajectories. Instead of making simplifying assumptions across all anticipated scenarios, inverse reinforcement learning provides inference on the short-term...
Resist, accept, and direct responses to biological invasions: A social–ecological perspective
Jason B. Dunham, Joseph R. Benjamin, David J. Lawrence, Katherine Clifford
2022, Fisheries Management and Ecology (29) 475-485
Biological invasions represent an important and unique case of ecological transformation that can strongly influence species and entire ecosystems. Challenges in managing invasions arise on multiple fronts, ranging from diverse and often divergent values associated with native and introduced species, logistical constraints, and transformation via other...
A comparison of non-surgical methods for sexing young gopher tortoises (Gopherus polyphemus)
Kevin J. Loope, David C. Rostal, Margarete A. Walden, Kevin T. Shoemaker, Elizabeth Ann Hunter
2022, PeerJ (10)
Many turtle species have temperature-dependent sex determination (TSD), raising the prospect that climate change could impact population dynamics by altering sex ratios. Understanding how climate change will affect populations of animals with TSD requires a reliable and minimally invasive method of identifying the sexes of young individuals. This determination is...
How do accuracy and model agreement vary with versioning, scale, and landscape heterogeneity for satellite-derived vegetation maps in sagebrush steppe?
Cara Applestein, Matthew J. Germino
2022, Ecological Indicators (139)
Maps of the distribution and abundance of dominant plants derived from satellite data are essential for ecological research and management, particularly in the vast semiarid shrub-steppe. Appropriate application of these maps requires an understanding of model accuracy and precision, and how it might vary across space, time, and different vegetation...
Thirteen novel ideas and underutilized resources to support progress towards a range-wide American eel stock assessment
David K. Cairns, Jose Benchetrit, Louis Bernatchez, Virginie Bornarel, John M. Casselman, Martin Castonguay, Anthony Charsley, Malte Dorrow, Hilaire Drouineau, Jens Frankowski, Alexander Haro, Simon Hoyle, D. Craig Knickle, Marten A. Koops, Luke A. Poirier, James T. Thorson, John A. Young, Xinhua Zhu
2022, Fisheries Management and Ecology (29) 516-541
A robust assessment of the American eel (Anguilla rostrata) stock, required to guide conservation efforts, is challenged by the species’ vast range, high variability in demographic parameters and data inadequacies. Novel ideas and underutilised resources that may assist both analytic assessments and spatially oriented modelling include (1) species and environmental databases;...
Quantifying relations between altered hydrology and fish community responses for streams in Minnesota
Jeffrey R. Ziegeweid, Gregory D. Johnson, Aliesha L. Krall, Kara Fitzpatrick, Sara B. Levin
2022, Ecological Processes (11)
Altered hydrology is a stressor on aquatic life for several streams in Minnesota, but quantitative relations between specific aspects of streamflow alteration and biological responses have not been developed on a statewide scale in Minnesota. Best subsets regression analysis was used to develop linear regression models that quantify relations...
Spectral mixture analysis for surveillance of harmful algal blooms (SMASH): A field-, laboratory-, and satellite-based approach to identifying cyanobacteria genera from remotely sensed data
Carl J. Legleiter, Tyler V. King, Kurt D. Carpenter, Natalie Celeste Hall, Adam C. Mumford, E. Terrence Slonecker, Jennifer L. Graham, Victoria G. Stengel, Nancy Simon, Barry H. Rosen
2022, Remote Sensing of Environment (279)
Algal blooms around the world are increasing in frequency and severity, often with the possibility of adverse effects on human and ecosystem health. The health and economic impacts associated with harmful algal blooms, or HABs, provide compelling rationale for developing new methods for monitoring these...
The role of microtopography and resident species in post-disturbance recovery of arid habitats in Hawaiʻi
Stephanie G. Yelenik, Eli Rose, Susan Cordell, Michelle Victoria, James R. Kellner
2022, Ecological Applications (32)
Habitat-suitability indices (HSI) have been employed in restoration to identify optimal sites for planting native species. Often, HSI are based on abiotic variables and do not include biotic interactions, even though similar abiotic conditions can favor both native and nonnative species. Biotic interactions such as competition may be especially important...
Analysis of surface water trends for the conterminous United States using MODIS satellite data, 2003–2019
Roy E. Petrakis, Christopher E. Soulard, Eric K. Waller, Jessica J. Walker
2022, Water Resources Research (58)
Satellite imagery is commonly used to map surface water extents over time, but many approaches yield discontinuous records resulting from cloud obstruction or image archive gaps. We applied the Dynamic Surface Water Extent (DSWE) model to downscaled (250-m) daily Moderate Resolution Imaging Spectroradiometer (MODIS) data in Google...
Response of riparian vegetation to short- and long-term hydrologic variation
Jonathan M. Friedman, Abigail M. Eurich, Gregor T. Auble, Michael L. Scott, Patrick B. Shafroth, Polly P Gibson
2022, Ecological Applications (32)
Increasing demand for river water now conflicts with an increasing desire to maintain riparian ecosystems. Efficiently managing river flows for riparian vegetation requires an understanding of the time scale of flow effects, but this information is limited by the absence of long-term studies of vegetation change...
The need to step-up monitoring of Asian bears
David L. Garshelis, Karine Pigeon, Mei-hsiu Hwang, Michael Proctor, William J. McShea, Angela K. Fuller, Dana J. Morin
2022, Global Ecology and Conservation (35)
Many wildlife species are threatened in Asia, including the five species of terrestrial bears (Asiatic black, Ursus thibetanus; brown, U. arctos; sloth, Melursus ursinus; sun, Helarctos malayanus; giant panda, Ailuropoda melanoleuca): many populations of these bears are thought to be declining or imperiled by small population size. Here our aim is to document how population assessments have been...
Predicting near-term effects of climate change on nitrogen transport to Chesapeake Bay
Scott Ator, Gregory E. Schwarz, Andrew J. Sekellick, Gopal Bhatt
2022, Journal of the American Water Resources Association (58) 578-596
Understanding effects of climate change on nitrogen fate and transport in the environment is critical to nutrient management. We used climate projections within a previously calibrated spatially referenced regression (SPARROW) model to predict effects of expected climate change over 1995 through 2025 on total nitrogen fluxes to Chesapeake Bay and...
Processes and mechanisms of coastal woody-plant mortality
Nate G. McDowell, Marilyn Ball, Ben Bond-Lamberty, Matthew L. Kirwan, Ken Krauss, J. Patrick Megonigal, Maurizio Mencuccini, Nicholas D. Ward, Michael N. Weintraub, Vanessa Bailey
2022, Global Change Biology (28) 5881-5900
Observations of woody plant mortality in coastal ecosystems are globally widespread, but the overarching processes and underlying mechanisms are poorly understood. This knowledge deficiency, combined with rapidly changing water levels, storm surges, atmospheric CO2, and vapor pressure deficit, creates large predictive uncertainty regarding how coastal ecosystems will respond to global...
