Skip to main content
U.S. flag

An official website of the United States government

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.

Filter Total Items: 175370

Biological feasibility of introducing bighorn sheep to the Jicarilla Apache Nation Biological feasibility of introducing bighorn sheep to the Jicarilla Apache Nation

The biological feasibility of introducing Rocky Mountain bighorn sheep (Ovis canadensis canadensis) to the Dulce area of the Jicarilla Apache Nation (JAN) depends on availability and condition of potential habitat and the potential for disease risk, as pneumonia is the largest current threat to wild sheep populations. We modeled quality and quantity of potential bighorn sheep habitat...
Authors
Cara J. Thompson, James W. Cain

Riparian methylmercury production increases riverine mercury flux and food web concentrations Riparian methylmercury production increases riverine mercury flux and food web concentrations

The production and uptake of toxic methylmercury (MeHg) impacts aquatic ecosystems globally. Rivers can be dynamic and difficult systems to study for MeHg production and bioaccumulation, hence identifying sources of MeHg to these systems is both challenging and important for resource management within rivers and main-stem reservoirs. Riparian zones, which are known biogeochemical...
Authors
Virginia Krause, Austin K. Baldwin, Benjamin D. Peterson, David P. Krabbenhoft, Sarah E. Janssen, James Willacker, Collin A. Eagles-Smith, Brett A. Poulin

Near-term ecological forecasting for climate change action Near-term ecological forecasting for climate change action

A substantial increase in predictive capacity is needed to anticipate and mitigate the widespread change in ecosystems and their services in the face of climate and biodiversity crises. In this era of accelerating change, we cannot rely on historical patterns or focus primarily on long-term projections that extend decades into the future. In this Perspective, we discuss the potential of...
Authors
Michael Dietze, Ethan P. White, Antoinette Abeyta, Carl Boettiger, Nievita Bueno Watts, Cayelan C. Carey, Rebecca Chaplin-Kramer, Ryan E. Emanuel, S.K. Morgan Ernest, Renato Figueiredo, Michael Gerst, Leah R. Johnson, Melissa A. Kenney, Jason S. McLachlan, Ioannis Paschalidis, Jody Peters, Christine R. Rollinson, Juniper Simonis, Kira Sullivan-Wiley, R. Quinn Thomas, Glenda M Wardle, Alyssa Willson, Jacob Aaron Zwart

Effects of release strategy, source population, and age on reintroduced scaled quail reproduction Effects of release strategy, source population, and age on reintroduced scaled quail reproduction

Translocation is one strategy to reestablish populations of scaled quail (Callipepla squamata). Initial reproductive success post-translocation is important for establishing short-lived species such as quail, but factors influencing reproductive success are poorly understood. We evaluated the effect of source population and variation in delayed release strategy (1−9 weeks) on nest...
Authors
Rebekah E. Ruzicka, Dale Rollins, William L. Kendall, Paul F. Doherty

Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification

Understanding the geomorphic processes and causes for long-term hydrogeomorphic changes along the Upper Mississippi River System (UMRS) is necessary for scientific studies ranging from habitat needs assessments, sediment transport, and nutrient processing, and making sound management decisions and prioritizing ecological restoration activities. From 2018 through 2020 the U.S. Geological...
Authors
Faith A. Fitzpatrick, James T. Rogala, Jon S. Hendrickson, Lucie Sawyer, Jayme Stone, Susannah Erwin, Edward J. Brauer, Angus Vaughan

Intense alteration on early Mars revealed by high-aluminum rocks at Jezero Crater Intense alteration on early Mars revealed by high-aluminum rocks at Jezero Crater

The NASA Perseverance rover discovered light-toned float rocks scattered across the surface of Jezero crater that are particularly rich in alumina ( ~ 35 wt% Al2O3) and depleted in other major elements (except silica). These unique float rocks have heterogeneous mineralogy ranging from kaolinite/halloysite-bearing in hydrated samples, to spinel-bearing in dehydrated samples also...
Authors
C. Royer, C.C. Bedford, J.R. Johnson, B.H.N. Horgan, A. Broz, O. Forni, S. Connell, R.C. Wiens, L. Mandon, B.S. Kathir, E.M. Hausrath, A. Udry, J.M. Madariaga, E. Dehouck, Ryan B. Anderson, P.S.A. Beck, O. Beyssac, É. Clavé, S.M. Clegg, E. Cloutis, T. Fouchet, Travis S.J. Gabriel, B.J. Garczynski, A. Klidaras, H.T. Manelski, L.E. Mayhew, J. Nunez, A.M. Ollila, S.E. Schröder, J.I. Simon, U. Wolf, K.M. Stack, A. Cousin, S. Maurice
Was this page helpful?