The relationship between maturation size and maximum tree size from tropical to boreal climates
Valentin Journe, Michał Bogdziewicz, Benoit Courbaud, Georges Kunstler, Tong Qiu, Marie-Claire Aravena Acuña, Davide Ascoli, Yves Bergeron, Daniel Berveiller, Thomas Boivin, Raul Bonal, Thomas Caignard, Maxime Cailleret, Rafael Calama, J. Julio Camarero, Chia-Hao Chang-Yang, Jerome Chave, Francesco Chianucci, Thomas Curt, Andrea Cutini, Adrian Das, Evangelia Daskalakou, Hendrik Davi, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Sergio Donoso Calderon, Laurent Dormont, Josep Maria Espelta, William Farfan-Rios, Michael Fenner, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzer, Cathryn H. Greenberg, Arthur Guignabert, Qinfeng Guo, Andrew Hacket-Pain, Arndt Hampe, Qingmin Han, Mick E. Hanley, Janneke Hille Ris Lambers, Jan Holik, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Johannes M. H. Knops, Richard K. Kobe, Hiroko Kurokawa, Jonathan G. A. Lageard, Jalene LaMontagne, Mateusz Ledwon, Francois Lefevre, Theodor Leininger, Jean-Marc Limousin, James A. Lutz, Diana Macias, Anders Marell, Eliot J. B. McIntire, Emily V. Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Shoji Naoe, Mahoko Noguchi, Julian Norghauer, Michio Oguro, Jean-Marc Ourcival, Robert Parmenter, Ian Pearse, Ignacio M. Perez-Ramos, Lukasz Piechnik, Tomasz Podgorski, John Poulsen, Miranda D. Redmond, Chantal D. Reid, Pavel Samonil, C. Lane Scher, William H. Schlesinger, Barbara Seget, Shubhi Sharma, Mitsue Shibata, Miles Silman, Michael A. Steele, Nathan L. Stephenson, Jacob N. Straub, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Amy V. Whipple, Thomas G. Whitham, S. Joseph Wright, Kai Zhu, Jess K. Zimmerman, Magdalena Zywiec, James S. Clark
2024, Ecology Letters (27) e14500
The fundamental trade-off between current and future reproduction has long been considered to result in a tendency for species that can grow large to begin reproduction at a proportionately larger size. Due to the prolonged time required to reach maturity, estimates of tree maturation size remain unavailable and we lack...
Testing tree-ring cellulose δ18O with water isotopes for Holocene lake δ18O interpretations in the central Rocky Mountains USA
Lesleigh Anderson, M. Alisa Mast, Rebecca Lynn Brice, Max Berkelhammer
2024, The Holocene
Stable isotopes of water preserved in geologic archives, primarily as oxygen (δ18O), have proven critical for documenting Earth’s climatic and hydrologic systems past and present. However, timescale differences of water isotope inputs to proxy systems and the signal embedded in long paleorecords often confound translation to observed hydroclimatic metrics. Here,...
In situ allelopathic expression by the invasive amphibious plant, Ludwigia hexapetala (water primrose) across habitat types, seasons, and salinities
Judith Z. Drexler, Michael Gross, Michelle L. Hladik, Bailey Morrison, Erin Hestir
2024, Biological Invasions (26) 3811-3828
Broad infestations of invasive, non-native vegetation have transformed wetlands around the world. Ludwigia hexapetala is a widespread, amphibious invasive plant with a creeping growth habit in open water and an erect growth habit in terrestrial habitats. In the upper San Francisco Estuary of California, L. hexapetala is increasingly terrestrializing into marshes and this expansion...
Global assessment of aquatic Isoëtes species ecology
Mattia M. Azzella, Alice Dalla Vecchia, Thomas Abeli, Janne Alahuhta, Victor B. Amoroso, Enric Ballesteros, Vincent Bertrin, Daniel Brunton, Alexander A. Bobrov, Cecilio Caldeira, Simona Ceschin, Elena V. Chemeris, Martina Ctvrtlikova, Mary de Winton, Esperanca Gacia, Oleg G. Grishutkin, Deborah Hofstra, Daniella Ivanova, Maria O. Ivanova, Nikita K. Konotop, Danelle M. Larson, Sara Magrini, Marit Mjelde, Olga A. Mochalova, Guilherme Oliveira, Ole Pedersen, Jovani B. de S. Pereira, Cristina Ribaudo, Maria Inmaculada Romero Bujan, Angelo Troia, Yulia S. Vinogradova, Polina A. Volkova, Daniel Zandonadi, Nadezhda V. Zueva, Rossano Bolpagni
2024, Freshwater Biology (69) 1420-1437
Isoëtes are iconic but understudied wetland plants, despite having suffered severe losses globally mainly because of alterations in their habitats. We therefore provide the first global ecological assessment of aquatic Isoëtes to identify their environmental requirements and to evaluate if taxonomically related species differ in their...
Report of the River Master of the Delaware River for the period December 1, 2016–November 30, 2017
Kendra L. Russell, William J. Andrews, Vincent J. DiFrenna, J. Michael Norris, Robert R. Mason, Jr.
2024, Open-File Report 2024-1022
Executive SummaryA Decree of the Supreme Court of the United States, entered June 7, 1954 (New Jersey v. New York, 347 U.S. 995), established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes the diversion of water from the Delaware River Basin and...
Status and performance of the ShakeAlert® earthquake early warning system: 2019-2023
A.I. Lux, Deborah Smith, M. Böse, Jeffrey J. McGuire, Jessie K. Saunders, Minh Huynh, I. Stubailo, Jennifer R Andrews, G. Lotto, B. Crowell, S. Crane, R. M. Allen, Douglas D. Given, R. Hartog, T. Heaton, A. Husker, J. Marty, Leland O'Driscoll, Harold J. Tobin, Sara K. McBride, D. Toomey
2024, Bulletin of the Seismological Society of America (114) 3041-3062
The U.S. Geological Survey (USGS)‐operated ShakeAlert® system is the United States West Coast earthquake early warning system (Given et al., 2018). In this study we detail ShakeAlert’s performance during some of the largest events seen by the system thus far. Statewide public alerting using ShakeAlert messages was authorized...
Spatial variability of water temperature within the White River basin, Mount Rainier National Park Washington
Andrew Gendaszek, Anya Clare Leach, Kristin Jaeger
2024, Preprint
Water temperature is a primary control on the occurrence and distribution of cold-water species. Rivers draining Mount Rainier in western Washington, including the White River along its northern flank, support several cold-water fish populations, but the spatial distribution of water temperatures, particularly during late-summer base flow between August and September,...
Simulated sea level rise in coastal peat oils stimulates mercury methylation
Bryce A. Cook, Benjamin D. Peterson, Jacob M. Ogorek, Sarah E. Janssen, Brett A. Poulin
2024, ACS Earth and Space Chemistry (8) 1784-1796
Coastal wetlands are vulnerable to sea level rise with unknown consequences for mercury (Hg) cycling, particularly the potential for exacerbating neurotoxic methylmercury (MeHg) production and bioaccumulation in food webs. Here, the effect of sea level rise on MeHg formation in the Florida Everglades was evaluated by incubating peat cores from...
Trail sustainability broadly defined
Jeffrey L. Marion, Emily J. Wilkins
2024, Journal of Outdoor Recreation and Tourism (47)
In this paper we provide a concise yet comprehensive examination of the importance and sustainability of trail networks, considering a diverse array of perspectives. Sustainability related to recreation infrastructure elements has been variously defined, with different disciplines often only considering...
Observing glacier elevation changes from spaceborne optical and radar sensors – an inter-comparison experiment using ASTER and TanDEM-X data
Livia Piermattei, Michael Zemp, Christian Sommer, Fanny Brun, Matthias H. Braun, Liss M. Andreassen, Joaquin M. C. Belart, Etienne Berthier, Atanu Bhattacharya, Laura Boehm Vock, Tobias Bolch, Amaury Dehecq, Ines Dussaillant, Daniel Falaschi, Caitlyn Florentine, Dana Floricioiu, Christian Ginzler, Gregoire Guillet, Romain Hugonnet, Andreas Kaab, Owen King, Christoph Klug, Friedrich Knuth, Lukas Krieger, Jeff La Frenierre, Robert McNabb, Christopher McNeil, Rainer Prinz, Louis C. Sass, Thorsten Seehaus, David Shean, Desiree Treichler, Anja Wendt, Ruitang Yang
2024, The Cryosphere (18) 3195-3230
Observations of glacier mass changes are key to understanding the response of glaciers to climate change and related impacts, such as regional runoff, ecosystem changes, and global sea level rise. Spaceborne optical and radar sensors make it possible to quantify glacier elevation changes, and...
Projected changes in mangrove distribution and vegetation structure under climate change in the southeastern United States
Remi Bardou, Michael Osland, Jahson B. Alemu I, Laura Colleen Feher, David P. Harlan, Steven B. Scyphers, Christine C. Shepard, Savannah H. Swinea, Kalaina Thorne, Jill E. Andrew, A. Randall Hughes
2024, Journal of Biogeography (51) 2285-2297
AimThe climate change-induced transition from grass-dominated marshes to woody-plant-dominated mangrove forests has the potential to impact the ecosystem goods and services provided by coastal wetlands. To better anticipate and prepare for these impacts, there is a need to advance understanding of future changes in mangrove distribution and...
The use of conceptual ecological models to identify critical data and uncertainties to support numerical modeling: The northern Gulf of Mexico eastern oyster Crassostrea virginica example
Megan K. La Peyre, Shaye Sable, Danielle A. Marshall, Elise R. Irwin, Chad W. Hanson
2024, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science (16)
ObjectiveIncreasing reliance on numerical simulation models to help inform management and restoration choices benefits from careful consideration of critical early steps in model development. Along the northern coast of the Gulf of Mexico, the eastern oyster Crassostrea virginica fulfills important ecological and economic roles. Using the eastern oyster...
Least Bell's Vireos and Southwestern Willow Flycatchers—Breeding activities and habitat use—2023 annual report
Alexandra Houston, Lisa D. Allen, Shannon M. Mendia, Barbara E. Kus
2024, Open-File Report 2024-1040
Executive SummaryWe completed four protocol surveys for Least Bell’s Vireos (Vireo bellii pusillus; hereinafter vireo) during the breeding season, supplemented by weekly territory monitoring visits between April 6 and July 20 at the San Luis Rey Flood Risk Management Project Area (hereinafter Project Area). We identified a total of 136...
Climate and weather drivers in southern California Santa Ana Wind and non-Santa Wind fires
Jon Keeley, Michael Flannigan, Tim J. Brown, Tom Rolinski, Daniel Cayan, Alexandra D. Syphard, Janin Guzman-Morales, Alexander Gershunov
2024, International Journal of Wildland Fire (33)
Background. Autumn and winter Santa Ana Winds (SAW) are responsible for the largest and most destructive wildfires in southern California. Aims. 1) To contrast fires ignited on SAW days vs non-SAW days, 2) evaluate the predictive ability of the Canadian Fire Weather Index (CFWI) for these two fire types, and...
Estimation of reservoir storage capacity and geomorphic change detection analysis from a multibeam bathymetric survey of Randy Poynter Lake, Rockdale County, Georgia
A.R. Whaling, W.J. Bolton
2024, Scientific Investigations Map 3523
Rockdale County Department of Water Resources has a directive to update estimates of the reservoir storage capacity of Randy Poynter Lake, located in northern Georgia, and to assess recent sedimentation and associated storage capacity loss. In 2022, the U.S. Geological Survey completed a multibeam bathymetric survey of Randy Poynter Lake...
Foraging ecology of southern sea otters at the northern range extent informs regional population dynamics
Sophia N. Lyon, Joseph A. Tomoleoni, Julie L. Yee, Jessica Fujii, Nicole M. Thometz
2024, Endangered Species Research (54) 383-394
Sea otters Enhydra lutris are vital keystone predators throughout the North Pacific that were nearly extirpated during the maritime fur trade. Recovery of southern sea otters E. l. nereis has proceeded slowly, with much of their historical range remaining unoccupied, resulting in reduced ecosystem functioning. Numerous studies have used foraging metrics to assess...
Paired comparisons with quiet surface drones show evidence of fish behavioral response to motorized vessels during acoustic surveys in Lake Superior
Thomas M. Evans, Lars G. Rudstam, Suresh A Sethi, Daniel L. Yule, David Warner, Steve A. Farha, Andrew R. Barnard, Mark Richard Dufour, Timothy P. O’Brien, Kayden Nasworthy, Ian Harding, Bradley A. Ray, Edmund J. Isaac, Joshua Blankenheim, Hannah B. Blair, James M. Watkins, Steven A. Senczyszyn, James Roberts, Peter C. Esselman
2024, Canadian Journal of Fisheries and Aquatic Sciences (81) 1740-1851
Acoustic surveys are important for fish stock assessments, but fish responses to survey vessels can bias acoustic estimates. We leveraged quiet uncrewed surface vessels (USVs) to characterize potential bias in acoustic surveys. Five conventional motorized ships overtook USVs from astern over 2 km transects at night in...
Water-quality constituent concentrations and loads computed using real-time water-quality data for the Republican River, Clay Center, Kansas, August 2018 through July 2023
Ariele R. Kramer, Justin R. Abel
2024, Scientific Investigations Report 2024-5072
Milford Lake, the largest reservoir by surface area in Kansas, has had confirmed harmful algal blooms every summer since reporting began in 2011, except 2018–19. Milford Lake has been listed as impaired and designated hypereutrophic under section 303(d) of the 1972 Clean Water Act. In 2014, the Kansas Department of...
Using systematic conservation planning to recover climate resilient habitat for threatened and endangered species while retaining areas of cultural importance
Christina Leopold, Lucas Fortini, Jonathan Sprague, Rachel Sprague, Steven C. Hess
2024, Conservation (4) 435-451
The effective management of at-risk species often requires fine-scale actions by natural resource managers. However, balancing these actions with concurrent land uses is challenging, particularly when compounded by the interplay of climate shifts, and escalating wildland–urban interface conflicts. We used spatial prioritization tools designed for biodiversity conservation to help...
Range-wide salamander densities reveal a key component of terrestrial vertebrate biomass in eastern North American forests
Evan H. Campbell Grant, Jillian Elizabeth Fleming, Elizabeth Bastiaans, Adrianne Brand, Jacey Brooks, Catherine Devlin, Kristen Epp, Matt Evans, M. Caitlin Fisher-Reid, Brian Gratwicke, Kristine Grayson, Natalie Haydt, Raisa Hernandez-Pacheco, Daniel J. Hocking, Amanda Hyde, Michael Losito, Maisie MacKnight, Tanya Matlaga, Louise Mead, David J. Munoz, William B. Peterman, Veronica Puza, Charles Shafer, Sean Sterrett, Chris Sutherland, Lily M. Thompson, Alexa R. Warwick, Alexander D. Wright, Kerry Yurewicz, David A. W. Miller
2024, Biology Letters (20)
Characterizing the population density of species is a central interest in ecology. Eastern North America is the global hotspot for biodiversity of plethodontid salamanders, an inconspicuous component of terrestrial vertebrate communities, and among the most widespread is the eastern red-backed salamander, Plethodon cinereus. Previous work suggests...
Wildland fire effects on sediment, salinity, and selenium yields in a basin underlain by Cretaceous marine shales near Rangely, Colorado
Natalie K. Day, Todd M. Preston, Patrick C. Longley
2024, Scientific Investigations Report 2024-5043
Understanding and quantifying soil erosion from rangelands is a high priority for land managers, especially in areas underlain by Cretaceous Mancos Shale, which is a natural source of sediment, salinity, and selenium to surface waters in many areas of western Colorado and eastern Utah. The purpose of this report is...
Monitoring and simulation of hydrology, suspended sediment, and nutrients in selected tributary watersheds of Lake Erie, New York
Katherine R. Merriman, Benjamin N. Fisher, Elizabeth A. Nystrom, Aubrey R. Bunch, Robert J. Welk, William M. Kappel
2024, Scientific Investigations Report 2024-5022
The U.S. Geological Survey, in cooperation with Erie County, New York, the New York State Department of Environmental Conservation, and the Great Lakes Restoration Initiative, collected water-quality samples in nine selected New York tributaries to Lake Erie, computed estimates of suspended sediment and nutrient loads using the R scripting package...
Developing version 2 of satellite-estimated precipitation monthly reports for selected locations in the Republic of the Marshall Islands
Gabriel B. Senay, David A. Helweg, Stefanie Kagone, Thomas Cecere, Tiare Eastmond, Amy Koch, Kurtis Nelson, Jack Randon
2024, Data Report 1199
The Republic of the Marshall Islands (RMI; also known as the Marshall Islands) is a nation of more than 30 low-lying atolls and islands, most of which are inhabited, dispersed across an Exclusive Economic Zone over 770,000 square miles in the tropical central north Pacific Ocean. The study objectives and...
Fish size structures in lakes of the Lower Mississippi River floodplain
Leandro E. Miranda, D.J. Dembkowski
2024, Freshwater Biology (69) 1390-1398
The Lower Mississippi River has a floodplain that includes >1350 perennial lakes carved by shifts in river courses and other hydro-fluvial processes over eons. Notwithstanding their similar provenances, these waterbodies exhibit an immense variety of morphologies and successional stages that illustrate their natural trajectory from aquatic to forested wetlands....
Large-scale dam removal and ecosystem restoration
Rebecca McCaffery, Jeffrey J. Duda, Laura Soissons, Jean-Marc Roussel
2024, Frontiers in Ecology and Evolution (12)
Rivers underpin vital ecosystems that support aquatic and terrestrial biodiversity and many ecosystem services, including food, water, culture, and recreation (Dudgeon et al. 2006). After centuries of building dams on rivers across the world, river restoration via dam removal is receiving increased public attention, financial investment, and scientific study because...
