Publications
Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
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Density effects on native and non-native trout survival in streams Density effects on native and non-native trout survival in streams
Environmental stressors associated with a changing climate and non-native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of a population's distribution. We collected capture–mark–recapture data for Rio Grande cutthroat trout (RGCT, Oncorhynchus clarkii...
Authors
Brock M. Huntsman, Lauren Flynn, Colleen A. Caldwell, Abigail Lynch, Fitsum Abadi
The detection and attribution of extreme reductions in vegetation growth across the global land surface The detection and attribution of extreme reductions in vegetation growth across the global land surface
Negative extreme anomalies in vegetation growth (NEGs) usually indicate severely impaired ecosystem services. These NEGs can result from diverse natural and anthropogenic causes, especially climate extremes (CEs). However, the relationship between NEGs and many types of CEs remains largely unknown at regional and global scales. Here, with satellite-derived vegetation index data and...
Authors
Huiping Yang, Seth M. Munson, Chris Huntingford, Nuno Carvalhais, Alan K. Knapp, Xiangyi Li, Josep Penuelas, Jakob Zscheichler, Anping Chen
Solid Earth–atmosphere interaction forces during the 15 January 2022 Tonga eruption Solid Earth–atmosphere interaction forces during the 15 January 2022 Tonga eruption
Rapid venting of volcanic material during the 15 January 2022 Tonga eruption generated impulsive downward reaction forces on the Earth of ~2.0 × 1013 N that radiated seismic waves observed throughout the planet, with ~25 s source bursts persisting for ~4.5 hours. The force time history is determined by analysis of teleseismic P waves and Rayleigh waves with periods approximately
Authors
Ricardo Garza-Giron, Thorne Lay, Frederick Pollitz, Hiroo Kanamori, Luis Rivera
National Land Cover Database 2019: A new strategy for creating clean leaf-on and leaf-off Landsat composite images National Land Cover Database 2019: A new strategy for creating clean leaf-on and leaf-off Landsat composite images
National Land Cover Database (NLCD) 2019 is a new epoch of national land cover products for the conterminous United States. Image quality is fundamental to the quality of any land cover product. Image preprocessing has often taken a considerable proportion of overall time and effort for this kind of national project. An approach to prepare image inputs for NLCD 2019 production was...
Authors
Suming Jin, Jon Dewitz, Patrick Danielson, Brian Granneman, Catherine Costello, Zhe Zhu
Drivers and facilitators of the illegal killing of elephants across 64 African sites Drivers and facilitators of the illegal killing of elephants across 64 African sites
Ivory poaching continues to threaten African elephants. We (1) used criminology theory and literature evidence to generate hypotheses about factors that may drive, facilitate or motivate poaching, (2) identified datasets representing these factors, and (3) tested those factors with strong hypotheses and sufficient data quality for empirical associations with poaching. We advance on...
Authors
Timothy Kuiper, Res Altwegg, Colin Beale, Thea Carroll, Holy Dublin, Severin Hauenstein, Mrigesh Kshatriya, Carl Schwarz, Chris Thouless, J. Andrew Royle, E.J. Milner-Gulland
Comparison of ventifact orientations and recent wind direction indicators on the floor of Jezero crater, Mars Comparison of ventifact orientations and recent wind direction indicators on the floor of Jezero crater, Mars
Wind-abraded rocks and aeolian bedforms have been observed at the Mars 2020 Perseverance landing site, providing evidence for recent and older wind directions. This study reports orientations of aeolian features measured in Perseverance images to infer formative wind directions. It compares these measurements with orbital observations, climate model predictions, and wind data acquired by...
Authors
Kenneth E. Herkenhoff, Rob Sullivan, Claire E Newman, Gerhard Paar, Mariah Baker, Daniel Viudez-Moreiras, James W. Ashley, Andreas Bechtold, Jorge I Nunez
Modeled production, oxidation, and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions Modeled production, oxidation, and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions
Wetlands are the largest natural source of methane (CH4) to the atmosphere. The eddy covariance method provides robust measurements of net ecosystem exchange of CH4, but interpreting its spatiotemporal variations is challenging due to the co-occurrence of CH4 production, oxidation, and transport dynamics. Here, we estimate these three processes using a data-model fusion approach across...
Authors
Masahito Ueyama, Sarah Knox, Kyle B. Delwiche, Sheel Bansal, William J. Riley, Dennis Baldocchi, Takashi Hirano, Gavin McNicol, Karina Schafer, Lisamarie Windham-Myers, Benjamin Poulter, Robert B. Jackson, Kuang-Yu Chang, Jiquan Chen, Housen Chu, Ankur R. Desai, Sebastien Gogo, Hiroki Iwata, Minseok Kang, Ivan Mammarella, Matthias Peichl, Oliver Sonnentag, Eeva-Stiina Tuittila, Youngryel Ryu, Eugenie S. Euskirchen, Mathias Goeckede, Adrien Jacotot, Mats B. Nilsson, Torsten Sachs
Reference materials for phase equilibrium studies. 2. Solid–liquid equilibria (IUPAC Technical Report) Reference materials for phase equilibrium studies. 2. Solid–liquid equilibria (IUPAC Technical Report)
This article is the second of three projected IUPAC Technical Reports on reference materials for phase equilibrium studies. The goal of this project was to select reference systems with critically evaluated property values for the verification of instruments and techniques used in phase equilibrium studies of mixtures. This report proposes seven systems for solid–liquid equilibrium...
Authors
Ala Bazyleva, William E Acree, Vladimir Diky, Glenn T Hefter, Johan Jacquemin, M Clara F Magalhaes, Joseph W Magee, D. Kirk Nordstrom, John O’Connell, James D Olson, Ilya Polishuk, Kurt A G Schmidt, John M Shaw, J P Martin Trusler, Ronald D Weir
Spatial modeling of two mosquito vectors of West Nile virus using integrated nested Laplace approximations Spatial modeling of two mosquito vectors of West Nile virus using integrated nested Laplace approximations
The abundance of Culex restuans and Culex pipiens in relation to ecological predictors is poorly understood in regions of the United States where their ranges overlap. It is suspected that these species play different roles in spreading West Nile virus (WNV) in these regions, but few studies have modeled these species separately or accounted for spatial correlation using Bayesian methods...
Authors
Kristin J. Bondo, Diego Montecino-Latorre, Lisa Williams, Matt Helwig, Kenneth Duren, Mike Hutchinson, W. David Walter
Density-habitat relationships of white-tailed deer (Odocoileus virginianus) in Finland Density-habitat relationships of white-tailed deer (Odocoileus virginianus) in Finland
In heterogeneous landscapes, resource selection constitutes a crucial link between landscape and population-level processes such as density. We conducted a non-invasive genetic study of white-tailed deer in southern Finland in 2016 and 2017 using fecal DNA samples to understand factors influencing white-tailed deer density and space use in late summer prior to the hunting season. We...
Authors
Jenni Poutanen, Angela K. Fuller, Jyrki Pusenius, J. Andrew Royle, Mikael Wikström, Jon E Brommer
Influence of camera model and alignment on the performance of paired camera stations Influence of camera model and alignment on the performance of paired camera stations
The probability of obtaining images of target species may vary across camera models or relative position of cameras at survey locations. Alignment of cameras within paired camera stations (hereafter, stations) could affect species detection due to issues with image exposure. We quantified effects of 3 camera models and alignment (staggered, offset by a perpendicular distance of 4.6 m...
Authors
Tim Swearingen, Robert W. Klaver, Charles R. Anderson, Christopher N. Jacques
DNA metabarcoding-based evaluation of the diet of Big Brown Bats (Eptesicus fuscus) in the Mid-Atlantic region DNA metabarcoding-based evaluation of the diet of Big Brown Bats (Eptesicus fuscus) in the Mid-Atlantic region
High-throughput DNA sequencing can generate large genetic datasets in a cost-effective manner. Although the diet of Eptesicus fuscus (Big Brown Bat) has been studied widely in natural and rural systems using visual identification of prey items in feces, our aim was to more completely assess diet using a metabarcoding approach across a wide urban–natural landscape gradient in the mid...
Authors
Sabrina Deeley, Lin Kang, Pawel Michalak, Eric M. Hallerman, W. Mark Ford