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Resource-driven pattern formation in consumer-resource systems with asymmetric dispersal on a plane
This paper considers resource-driven pattern formation in consumer-resource systems. Here, a planar pattern consists of many big patches, and a big patch can be regarded as combination of many patches on the plane. The consumer moves between patches asymmetrically, while the asymmetry is driven by the resource abundance. Based on experimental models with linearly-linked patches, we propose a plana
Authors
Weiting Song, Shikun Wang, Yuanshi Wang, Don DeAngelis
Ratingcurve: A Python package for fitting streamflow rating curves
Streamflow is one of the most important variables in hydrology, but it is difficult to measure continuously. As a result, nearly all streamflow time series are estimated from rating curves that define a mathematical relationship between streamflow and some easy-to-measure proxy like water surface elevation (stage). Despite the existence of automated methods, most rating curves are still fit manual
Authors
Timothy O. Hodson, Keith James Doore, Terry A. Kenney, Thomas M. Over, Muluken Yeheyis
Sedimentary processes and instability on the Mississippi River Delta Front near the shipwreck of the SS Virginia
Sediment cores were collected from a mudflow lobe (80 m water depth) offshore of the Mississippi River’s Southwest Pass in 2017 to better understand the sedimentology near the lobe entraining the SS Virginia shipwreck (sunk by a German U-boat in 1942) and surrounding Mississippi River delta front. Core analyses included 210Pb/137Cs geochronology, granulometry, and X-radiography. Sediment accumulat
Authors
Nathan Figueredo, Samuel J. Bentley, Jason Chaytor, Kehui Xu, Navid H. Jafari, Iaonnis Georgiou, Melanie D'amour, Jeffrey Duxbury, Jeffrey B. Obelcz, Jillian Maloney
Validation of a molecular sex marker in three sturgeons from eastern North America
Despite the importance of sex-specific information for sturgeon conservation and management, sex identification has been a major challenge outside of mature adults on spawning grounds. Recent work identified a sex-specific locus (AllWSex2) that appears to be broadly conserved across many Acipenserids, but the assay was not validated for all species within the family. We tested the AllWSex2 marker
Authors
Nicholas M Sard, Brian R Krieser, Richard M. Pendleton, Barbara A. Lubinski, Robin L. Johnson, Dewayne A. Fox, Joel P Van Eenennaam, Jason E Kahn, Chris H Hager, Amanda L. Higgs, David C. Kazyak
Peak streamflow trends in Wisconsin and their relation to changes in climate, water years 1921–2020
This study characterizes hydroclimatic variability and change in peak streamflow and daily streamflow in Wisconsin from water years 1921 through 2020. Nonstationarity in peak streamflow in Wisconsin can include monotonic trends, change points, and autocorrelation. Spatial patterns of nonstationarity in peak streamflow, daily streamflow, and monthly precipitation, temperature, and snowfall were exa
Authors
Sara B. Levin
Peak streamflow trends and their relation to changes in climate in Illinois, Iowa, Michigan, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wisconsin
Flood-frequency analysis, also called peak-flow frequency or flood-flow frequency analysis, is essential to water resources management applications including critical structure design and floodplain mapping. Federal guidelines for doing flood-frequency analyses are presented in a U.S. Geological Survey Techniques and Methods report known as Bulletin 17C. A basic assumption within Bulletin 17C is t
Introduction and methods of analysis for peak streamflow trends and their relation to changes in climate in Illinois, Iowa, Michigan, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wisconsin
Flood-frequency analysis, also called peak-flow frequency or flood-flow frequency analysis, is essential to water resources management applications including critical structure design and floodplain mapping. Federal guidelines for doing flood-frequency analyses are presented in a U.S. Geological Survey Techniques and Methods Report known as Bulletin 17C. A basic assumption within Bulletin 17C is t
Authors
Karen R. Ryberg, Thomas M. Over, Sara B. Levin, David C. Heimann, Nancy A. Barth, Mackenzie K. Marti, Padraic S. O'Shea, Christopher A. Sanocki, Tara J. Williams-Sether, Harper N. Wavra, T. Roy Sando, Steven K. Sando, Milan S. Liu
Nutrient and carbonate chemistry patterns associated with Karenia brevis blooms in three West Florida Shelf estuaries 2020-2023
Ocean acidification (OA) driven by eutrophication, riverine discharge, and other threats from local population growth that affect the inorganic carbonate system is already affecting the eastern Gulf of Mexico. Long-term declines in pH of ~ -0.001 pH units yr-1 have been observed in many southwest Florida estuaries over the past few decades. Coastal and estuarine waters of southwest Florida experie
Authors
Emily R. Hall, Kimberly Yates, Katherine A. Hubbard, Matt Garrett, Jessica Frankle
Sources of bias in applying close-kin mark–recapture to terrestrial game species with different life histories
Close-kin mark–recapture (CKMR) is a method analogous to traditional mark–recapture but without requiring recapture of individuals. Instead, multilocus genotypes (genetic marks) are used to identify related individuals in one or more sampling occasions, which enables the opportunistic use of samples from harvested wildlife. To apply the method accurately, it is important to build appropriate CKMR
Authors
Anthony Sévêque, Robert Charles Lonsinger, Lisette P Waits, Kristin E. Brzeski, Lisa M Komoroske, Caitlin N. Ott-Conn, Sarah L. Mayhew, D. Cody Norton, Tyler R. Petroelje, John D. Swenson, Dana J. Morin
U.S. Geological Survey Grand Canyon Monitoring and Research Center: Proceedings of the fiscal year 2023 annual reporting meeting to the Glen Canyon Dam Adaptive Management Program
This proceedings is prepared for the USBR and Glen Canyon Dam Adaptive Management Program (GCDAMP) to account for work conducted and products delivered in FY 2023 by SBSC's Grand Canyon Monitoring and Research Center (GCMRC) and to inform the Technical Work Group of science conducted by GCMRC and its cooperators in support of the GCDAMP. It includes a summary of accomplishments, modifications to w
Authors
Andrew Alan Schultz, Gregory Mark Anderson, David Topping, Ronald E. Griffiths, David Dean, Paul Grams, Keith Kohl, Gerard Lewis Salter, Matthew A. Kaplinski, Katherine Chapman, Erich R. Mueller, Emily C. Palmquist, Bradley J. Butterfield, Joel B. Sankey, Bridget Deemer, Charles Yackulic, Lindsay Erika Hansen, Drew Elliot Eppehimer, Theodore Kennedy, Anya Metcalfe, Jeffrey Muehlbauer, Morgan Ford, Michael Dodrill, Maria C. Dzul, Pilar Rinker, Michael J. Pillow, David Ward, Josh Korman, Molly A.H. Webb, James A. Crossman, Eric J Frye, David L. Rogowski, Kimberley Dibble, Lucas Bair, Joshua Abbott, Thomas Gushue, Erica Paige Byerley, Joseph E Thomas, Thomas A. Sabol, Bryce Anthony Mihalevich
Demography with drones: Detecting growth and survival of shrubs with unoccupied aerial systems
Large-scale disturbances, such as megafires, motivate restoration at equally large extents. Measuring the survival and growth of individual plants plays a key role in current efforts to monitor restoration success. However, the scale of modern restoration (e.g., >10,000 ha) challenges measurements of demographic rates with field data. In this study, we demonstrate how unoccupied aerial system (UAS
Authors
Peter J. Olsoy, Andrii Zaiats, Donna M. Delparte, Matthew Germino, Bryce Richardson, Anna V. Roser, Jennifer S. Forbey, Megan E Cattau, Trevor Caughlin
Seasonal differences in larval sea lamprey (Petromyzon marinus) sensitivity to the pesticide TFM
Invasive sea lamprey (Petromyzon marinus) are controlled in the Great Lakes with 4-nitro-3-(trifluoromethyl) phenol (commonly 3-trifluoromethyl-4-nitrophenol or TFM). The proper concentration of TFM must be applied during treatments to effectively kill larval sea lamprey while minimizing impacts to non-target species. In this study, bioassay tests were conducted in May, July, and September over tw
Authors
Justin Schueller, Michael A. Boogaard, Courtney A Kirkeeng, Nicholas A. Schloesser, Samantha L. Wolfe, Avery J. Lettenberger, Tisha King-Heiden, James A. Luoma