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Filter Total Items: 176904

Overestimated natural biological nitrogen fixation translates to an exaggerated CO2 fertilization effect in Earth System Models Overestimated natural biological nitrogen fixation translates to an exaggerated CO2 fertilization effect in Earth System Models

CO2 fertilization of the terrestrial biosphere is limited by nitrogen. Biological nitrogen fixation (BNF) is the dominant natural nitrogen source to the terrestrial biosphere and can alleviate nitrogen limitation but is poorly constrained in Earth system models (ESMs). Here, we compare terrestrial BNF from an ensemble of ESMs of the 6th Coupled Model Intercomparison Project to a new...
Authors
Sian Kou-Giesbrecht, Carla R. Reis Ely, Steven S. Perakis, Cory C. Cleveland, Duncan N.L. Menge, Sasha C. Reed, Benton N. Taylor, Sarah A. Batterman, Timothy E. Crews, Katherine A. Dynarski, Maga G. Gei, Michael J. Gundale, David F. Herridge, Sarah E. Jovan, Mark B. Peoples, Johannes Piipponen, Emilio Rodríguez-Caballero, Verity G. Salmon, Fiona M. Soper, Anika P. Staccone, Bettina Weber, Christopher A. Williams, Nina Wurzburger

Predator effects on the survival of juvenile invasive carp in simulated backwater habitats Predator effects on the survival of juvenile invasive carp in simulated backwater habitats

Numerous control methods are in use and under development to manage invasive carps in the United States. Commercial harvest, electric deterrents, and chemical toxicants, among other methods, are most efficient at targeting larger individuals. Research on methods to control recruitment of juvenile invasive carps has been limited. Our primary objective was to assess the vulnerability of...
Authors
Courtney Lynn Broaddus, Cari-Ann Hayer, Curtis G. Byrd, Patrick Kroboth, Duane Chapman

Groundwater structures fish growth and production across a riverscape Groundwater structures fish growth and production across a riverscape

Landscapes are composed of habitat patches and conditions that vary across space and time. While habitat variability and complexity can support important ecological processes and ecosystem services, the dynamic nature of habitats can also constrain organismal growth and production as optimal conditions are fleeting. In riverine ecosystems, groundwater discharge to streams stabilises...
Authors
Jeffrey R. Baldock, Robert Al-Chokhachy, Annika W. Walters

When do single-species occupancy models outperform multispecies models? When do single-species occupancy models outperform multispecies models?

Occupancy models have become increasingly popular for species monitoring and assessment, in part, because detection/non-detection data are readily obtained using a variety of methods. Multispecies occupancy models (MSOMs) can yield more accurate parameter estimates than single-species models (SSOMs) with less data through their hierarchical structure, making MSOMs an attractive option...
Authors
Gavin G. Cotterill, Douglas A. Keinath, Tabitha A. Graves

Topographic, climatic, and age controls on the reworking of volcanic debris avalanche deposits Topographic, climatic, and age controls on the reworking of volcanic debris avalanche deposits

Volcanic debris avalanches have deposited as much as 1000 km3 of largely unconsolidated material on landscapes and remodeled existing drainage networks. The landscape disturbances created by these events pose severe, cascading downstream sedimentation hazards that can require long-term societal management, as demonstrated by decades of observations and ongoing interventions after the...
Authors
Kristin Sweeney, Jon J. Major

Twenty years (2000-2020) of butterfly monitoring data across the contiguous United States Twenty years (2000-2020) of butterfly monitoring data across the contiguous United States

We present the most comprehensive, integrated, butterfly monitoring dataset ever assembled for the United States. It contains over 1.2 million count records, from 65,000 surveys, representing over 12.6 million individual butterflies. To compile this dataset, we integrated data and harmonized taxonomy across 19 butterfly monitoring programs in the United States – one national, 13...
Authors
Erica H Henry, Collin B. Edwards, Vaughn Shirey, Jeffrey S. Pippen, Dave Waetjen, Matthew L. Forister, Elise A. Larsen, Cheryl B. Schultz, James Michielini, Nathan Brockman, Kevin J. Burls, Ryan G. Drum, Martha Gatch, Jeffrey Glassberg, Nancy Hamlett, Shiran V. Hershcovich, Catherine Le, Steve McGaffin, Jen Meilinger, Lisa Richter, Regina Rochefort, Charles Schelz, Arthur M. Shapiro, Katheryn Sullivan, Douglas J. Taron, Wayne E. Thogmartin, Anna Walker, Anita Westphal, Jerome Wiedmann, Irmgard U. Wilcockson, Jennifer Zaspel, Leslie Ries

Assessing fish growth changes under an ecosystem regime shift: The approach of linear mixed-effects modeling with application to Lake Huron lake trout Assessing fish growth changes under an ecosystem regime shift: The approach of linear mixed-effects modeling with application to Lake Huron lake trout

Linear mixed-effects modeling has been used to characterize fish growth changes over time, but early studies did not fully consider the implicit relationship among the three major factors of fish age, year-class, and sampling year in model development. Our objective is to resolve this issue and develop a linear mixed-effects model to clearly assess how lake trout (Salvelinus namaycush)...
Authors
Ji X. He, Charles P. Madenjian

The rise of U.S. photovoltaics: An exploration of land use density trends in large-scale solar facility attributes, 2012-2021 The rise of U.S. photovoltaics: An exploration of land use density trends in large-scale solar facility attributes, 2012-2021

An energy transition is underway in the United States; renewable energy generation is now on par with coal and nuclear generation. The number of large-scale solar photovoltaic facilities increased approximately tenfold between 2012 and 2021, with an associated 25-fold increase in cumulative installed capacity. With ambitious decarbonization and renewable energy deployment goals at both...
Authors
K. Sydny Fujita, Ben Hoen, Dana Robson, Joesph Rand, Zachary H. Ancona, James E. Diffendorfer, Louisa Kramer, Christopher Garrity, Jianyu Gu, Jordan Macknick

Drowned river mouth lakes are winter foraging habitats for the expanding Lake Michigan cisco Coregonus artedi population Drowned river mouth lakes are winter foraging habitats for the expanding Lake Michigan cisco Coregonus artedi population

Characterizing fish movements is required for understanding habitat use, energy flow, and trophic structure and can inform fisheries management. Drowned river mouth (DRM) lakes are productive inland habitats in the Laurentian Great Lakes basin used by migratory fishes. Despite recognition of their ecological connections to the Great Lakes, the value of DRM lakes as seasonal habitats is...
Authors
Ralph W. Tingley, Darryl W. Hondorp, Benjamin A. Turschak, Steven A. Pothoven, Amanda Susanne Ackiss, Jory Jonas, William W. Fetzer, Benjamin Scott Leonhardt, Andrew Edgar Honsey, Jeff Elliott, Lindsie Ann Egedy, Cory O. Brant, Lynn Benes, Kendra Kozlauskos, Renee Renauer-Bova, Ann J. Ropp

Success of restoration strategies in preventing extirpation of 2 critically endangered coral species Success of restoration strategies in preventing extirpation of 2 critically endangered coral species

An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected. These species have been the primary focus of reef restoration in Florida for decades. Substantial losses of these species...
Authors
Erinn M. Muller, Mark C. Ladd, Richard F. Karp, Phanor H. Montoya-Maya, Ilsa B. Kuffner, Andrew C. Baker, Erich Bartels, Amanda Bourque, Abigail S. Clark, Nikkie Cox, Martine D’Alessandro, Ben Daughtry, Beth Firchau, Leneita Fix, David S. Gilliam, Dalton Hesley, Cindy Lewis, Diego Lirman, Caitlin Lustic, Kevin Macauley, Jennifer Moore, Ken Nedimyer, Keri O’Neil, Kristene T. Parsons, Kylie M. Smith, Jason Spadaro, Bailey C. Thomasson, Joseph D. Unsworth, David Vaughan, Margaret W. Miller

Assessment of undiscovered oil and gas resources in the Santa Maria Basin Province, California, 2024 Assessment of undiscovered oil and gas resources in the Santa Maria Basin Province, California, 2024

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 67 million barrels of oil and 56 billion cubic feet of gas in the Santa Maria Basin Province of California.
Authors
Christopher J. Schenk, Marilyn E. Tennyson, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake II, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller

Divergent responses of seed banks and aboveground vegetation to drought and deluge in grasslands across an elevational gradient Divergent responses of seed banks and aboveground vegetation to drought and deluge in grasslands across an elevational gradient

Increased variability in precipitation associated with climate change creates extreme conditions of drought and deluge that can have profound effects on the abundance and composition of plant communities. Responses to these extremes likely vary across climatic gradients and depend on local plant community composition, which includes the emergent, aboveground vegetation as well as...
Authors
Jennifer R. Gremer, Margaret M. Moore, Daniel C. Laughlin, Seth M. Munson
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