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Spawning habitat selection and egg deposition by reintroduced Lake Sturgeon in a tributary to Cayuga Lake, NY
In June 2017, we documented the first observed spawning event by a reintroduced population of Lake Sturgeon (Acipenser fulvescens) in Fall Creek, a tributary to Cayuga Lake, New York, USA. This is the first observed spawning encounter of adult Lake Sturgeon since the beginning of the multi-agency Lake Sturgeon restoration effort in Cayuga Lake initiated in 1995 by the New York State Department of
Authors
Dawn E. Dittman, Marc Chalupnicki, Phyllis Randall, Emily C. Zollweg‐Horan
The importance of nodal plane orientation diversity for earthquake focal mechanism stress inversions
Inversions of earthquake focal mechanisms are among the most accessible and reliable methods for determining crustal stress. However, the use of this method varies widely, and assumptions that underpin it are often violated, potentially compromising stress estimates. We investigate the consequences of violating the little-studied assumption that the focal mechanisms have diverse orientations. Our
Authors
Jens-Erik Lundstern, Eric Beauce, Orlando J. Teran
Reply to comment on "Five decades of observed daily precipitation reveal longer and more variable drought events across much of the western United States"
Paciorek and Wehner raise important questions around our use of the Mann-Kendall nonparametric trend test on smoothed data for analyzing long-term hydrometeorological trends in Zhang et al. (2021, https://doi.org/10.1029/2020gl092293). We thank them for initiating this important conversation and their gracious cooperation in exploring the issues addressed in their comment. In this reply we confirm
Authors
Joel A. Biederman, Fangyue Zhang, Matthew P. Dannenberg, Dong Yan, Sasha C. Reed, William K. Smith
Using local monitoring results to inform the Chesapeake Bay Program’s Watershed Model
The Chesapeake Bay Program’s Watershed Model (CBWM) has been used as an accounting tool for the Chesapeake Bay Total Maximum Daily Load (TMDL). However, some of the fundamental parameters that underpin the watershed model may not represent local watershed characteristics at all scales. Significant investments have been made by state and local governments, and other local stakeholders, who are int
Authors
Karl Berger, Katherine C. Filippino, Gary W. Shenk, Normand Goulet, Michael Lookenbill, Doug L. Moyer, Gregory Noe, Aaron J. Porter, James Shallenberger, Bryant Thomas, Guido Yactayo
Contrasting demographic responses under future climate for two populations of a montane amphibian
For species with complex life histories, climate change can have contrasting effects for different life stages within locally adapted populations and may result in responses counter to general climate change predictions. Using data from two, 14-year demographic studies for a North American montane amphibian, Cascades frog (Rana cascadae), we quantified how aspects of current climate influenced ann
Authors
Amanda M. Kissel, Wendy J. Palen, Michael J. Adams, Justin M Garwood
Major fluvial erosion and a 500-Mt sediment pulse triggered by lava-dam failure, Río Coca, Ecuador
The failure of a 144-m-high lava-dam waterfall on the Río Coca, Ecuador, in February 2020 initiated a catastrophic watershed reset—regressive erosion upstream and a massive sediment pulse downstream—as the river evolves towards a new equilibrium grade. The evolution of this river corridor after a sudden base-level fall embodies the “complex response” concepts long understood through laboratory exp
Authors
Pedro D. Barrera Crespo, Pablo Espinoza Giron, Renan Bedoya, Stanford Gibson, Amy E. East, Eddy J. Langendoen, Paul M Boyd
A dataset of amphibian species in U.S. National Parks
National parks and other protected areas are important for preserving landscapes and biodiversity worldwide. An essential component of the mission of the United States (U.S.) National Park Service (NPS) requires understanding and maintaining accurate inventories of species on protected lands. We describe a new, national-scale synthesis of amphibian species occurrence in the NPS system. Many park u
Authors
Benjamin Lafrance, Andrew M. Ray, Robert N. Fisher, Evan H. Campbell Grant, Charles Shafer, David Beamer, Stephen Frank Spear, Todd W Pierson, Jon M. Davenport, Matthew L. Niemiller, R. Alexander Pyron, Brad Glorioso, William Barichivich, Brian J. Halstead, Kory Roberts, Blake R. Hossack
Non-negligible near-term risk of extinction to the eastern migratory population of monarch butterflies—An updated assessment (2006–22)
The eastern migratory population of monarch butterflies (Danaus plexippus) started declining as early as the mid-1970s and seemed to stop declining by the early 2000s; the population now (about 2022) persists at a much-reduced abundance. Stochastic variation in abundance, at levels typical of monarch butterflies and other insects, was assessed to determine whether this population is at heightened
Authors
Wayne E. Thogmartin
Slope Unit Maker (SUMak): An efficient and parameter-free algorithm for delineating slope units to improve landslide modeling
Slope units are terrain partitions bounded by drainage and divide lines. In landslide modeling, including susceptibility modeling and event-specific modeling of landslide occurrence, slope units provide several advantages over gridded units, such as better capturing terrain geometry, improved incorporation of geospatial landslide-occurrence data in different formats (e.g., point and polygon), and
Authors
Jacob Bryson Woodard, Benjamin B. Mirus, Nathan J. Wood, Kate E. Allstadt, Ben Leshchinsky, Matthew Crawford
Global potential distribution of mangroves: Taking into account salt marsh interactions along latitudinal gradients
Mangrove is one of the most productive and sensitive ecosystems in the world. Due to the complexity and specificity of mangrove habitat, the development of mangrove is regulated by several factors. Species distribution models (SDMs) are effective tools to identify the potential habitats for establishing and regenerating the ecosystem. Such models usually include exclusively environmental factors.
Authors
Lina Cui, Don DeAngelis, Uta Berger, Minmin Cao, Yaqi Zhang, Xiaomin Zhang, Jiang Jiang
Estimating lithium concentrations in groundwater used as drinking water for the conterminous United States
Lithium (Li) concentrations in drinking-water supplies are not regulated in the United States; however, Li is included in the 2022 U.S. Environmental Protection Agency list of unregulated contaminants for monitoring by public water systems. Li is used pharmaceutically to treat bipolar disorder, and studies have linked its occurrence in drinking water to human-health outcomes. An extreme gradient b
Authors
Melissa Lombard, Eric E. Brown, Daniel Saftner, Monica M. Arienzo, Esme Fuller-Thomson, Craig J. Brown, Joseph D. Ayotte
Rapid estimation of single-station earthquake magnitudes with machine learning on a global scale
The foundation of earthquake monitoring is the ability to rapidly detect, locate, and estimate the size of seismic sources. Earthquake magnitudes are particularly difficult to rapidly characterize because magnitude types are only applicable to specific magnitude ranges, and location errors propagate to substantial magnitude errors. We developed a method for rapid estimation of single‐station earth
Authors
Sydney Dybing, William L. Yeck, Hank M. Cole, Diego Melgar