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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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Mission Area Publications

We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 175495

The potential for species distribution models to distinguish source populations from sinks The potential for species distribution models to distinguish source populations from sinks

1. While species distribution models (SDM) are frequently used to predict species occurrences to help inform conservation management, there is limited evidence evaluating whether habitat suitability can reliably predict intrinsic growth rates or distinguish source from sink populations. Filling this knowledge gap is critical for conservation science, as applications of SDMs for...
Authors
Bilgecan Sen, Christian Joseph Che-Castaldo, H. Resit Akcakaya
By
Cooperative Research Units

No evidence hunting bait increases American black bear population growth in Maine, USA No evidence hunting bait increases American black bear population growth in Maine, USA

American black bear (Ursus americanus) populations are increasing throughout much of North America. Use of multiple harvest methods, including hunting over bait, is intended to increase harvest success rates to meet harvest and population management objectives. However, black bear population growth can be influenced by food availability, and some speculate the use of bait may...
Authors
Dana J. Morin, Jennifer H. Vashon, Matthew O’Neal, Nathan J. Hostetter, Elizabeth A. Flaherty
By
Cooperative Research Units

Leveraging extensive soil, vegetation, fire, and land treatment data to inform restoration across the sagebrush biome Leveraging extensive soil, vegetation, fire, and land treatment data to inform restoration across the sagebrush biome

Context Widespread ecological degradation has prompted calls for massive global investments in ecological restoration, yet limited resources necessitate efficient application of restoration efforts. In western North America, altered fire regimes are increasing the scale of restoration needed to preserve the sagebrush (Artemisia species) biome but prioritizing and implementing effective...
Authors
Bryan C. Tarbox, Adrian P. Monroe, Michelle I. Jeffries, Justin L. Welty, Michael S. O’Donnell, Robert Arkle, David S. Pilliod, Peter S. Coates, Julie A. Heinrichs, Daniel Manier, Cameron L. Aldridge
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center

What do we know without the catalog? Eliciting prior beliefs from experts for aftershock models What do we know without the catalog? Eliciting prior beliefs from experts for aftershock models

Fitting parametric seismological models to earthquake catalogs often comes with numerical challenges, especially when catalogs are small. An alternative way to quantify parameter values for a seismic region is by eliciting expert opinions on the seismological characteristics that each parameter corresponds to. For instance, expert beliefs on aftershock patterns can be formulated into...
Authors
Max Schneider, Peter Guttorp
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center

Produced water geochemistry from hydraulically stimulated Niobrara Formation petroleum wells: Origin of salinity and temporal perspectives on treatment and reuse Produced water geochemistry from hydraulically stimulated Niobrara Formation petroleum wells: Origin of salinity and temporal perspectives on treatment and reuse

Produced water (i.e., a mixture of returned injection fluids and geologic formation brines) represents the largest volumetric waste stream associated with petroleum production in the United States. As such, produced water has been the focus of intense study with emphasis on understanding the geologic origin of the fluids, environmental impacts of unintended or intentional release...
Authors
Aaron M. Jubb, Jenna L. Shelton, Bonnie McDevitt, Kaela K. Amundson, Amanda Sha Herzberg, Jessica Chenault, Andrew Laurence Masterson, Matthew S. Varonka, Glenn D. Jolly, Christina A. DeVera, Elliott P. Barnhart, Michael J. Wilkins, Madalyn S. Blondes
By
Energy Resources Program, Geology, Energy & Minerals Science Center, Brine Research Instrumentation and Experimental (BRInE) Laboratory

New occurrences of the rare, REE minerals daqingshanite, törnebohmite, biraite, sahamalite, and ferriperbøeite from the Sheep Creek area, Montana, USA New occurrences of the rare, REE minerals daqingshanite, törnebohmite, biraite, sahamalite, and ferriperbøeite from the Sheep Creek area, Montana, USA

Over 30 small, discontinuous, tabular carbonatite bodies are located in the Sheep Creek area, Ravalli County, southwest Montana. The age and origin of these REE-Nb-rich deposits are currently being investigated. The purpose of this paper is to document the occurrence of several rare minerals, including daqingshanite, törnebohmite, biraite, sahamalite, and ferriperbøeite, in two of the...
Authors
Chris Gammons, Sarah Risedorf, Gary Wyss, Heather A. Lowers
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Denver Microbeam Laboratory
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