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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Evidence of extensive home range sharing among mother–daughter bobcat pairs in the wildland–urban interface of the Tucson Mountains Evidence of extensive home range sharing among mother–daughter bobcat pairs in the wildland–urban interface of the Tucson Mountains
Urbanization impacts the structure and viability of wildlife populations. Some habitat generalists, such as bobcats (Lynx rufus), maintain populations at the intersection of wild and urban habitats (wildland urban interface, WUI), but impacts of urbanization on bobcat social structure are not well understood. Although commonly thought to establish exclusive home ranges among females...
Authors
Natalie Payne, Desiree Andersen, Robert A. Davis, Cheryl Mollohan, Kerry Baldwin, Albert L. LeCount, Melanie Culver
Comments on the species limits of certain North American birds, part 1 Comments on the species limits of certain North American birds, part 1
Although species limits of North American birds are relatively well-delineated, discrepancies among global lists identify species complexes that are subject to differences of opinion. As part of our work with the North American Classification Committee (NACC) of the American Ornithological Society, we here assess species limits in 11 such species complexes of North American birds: Spruce...
Authors
Oscar W. Johnson, Shawn Billerman, Blanca Hernandez-Banos, Daniel F Lane, Pamela C. Rasmussen, J.V. Remsen, Kevin Winker, R. Terry Chesser
Hurricane wave energy dissipation and wave-driven currents over a fringing reef Hurricane wave energy dissipation and wave-driven currents over a fringing reef
In 2018, two successive tropical cyclones, Hurricane Hector and Hurricane Lane, generated waves that impacted the Hawaiian Islands. This study investigates wave breaking over a broad fringing reef and aims to quantify the magnitudes and length scales of the corresponding wave-driven circulation using detailed field observations and numerical models corresponding to these wave events...
Authors
Zoe Zimmerman, Ryan Mulligan, Curt D. Storlazzi
Evaluation of solid bitumen created from marine oil shale bituminite under hydrous and anhydrous pyrolysis conditions Evaluation of solid bitumen created from marine oil shale bituminite under hydrous and anhydrous pyrolysis conditions
To test the influence of environmental conditions on aromaticity of solid bitumen generated during petroleum generation, four organic-rich (26–36 wt% total organic carbon) oil shale samples collected from the Neoproterozoic–Lower Cambrian restricted marine Salt Range Formation in the upper Indus Basin, Pakistan, were pyrolyzed under hydrous and anhydrous conditions. Experiments used...
Authors
Paul C. Hackley, Brett J. Valentine, Ryan J. McAleer, Javin J. Hatcherian, Jennifer Nedzweckas, Bonnie McDevitt, Imran Khan
Rowing in the same direction using MIX— A tool to initiate the melding of individual disciplinary experts into an integrated interdisciplinary team Rowing in the same direction using MIX— A tool to initiate the melding of individual disciplinary experts into an integrated interdisciplinary team
A common problem for interdisciplinary sustainability research is that scientists trained in different disciplines are often not rowing their boat effectively in the same direction. Sustainability tools can aid the implementation of this team-melding process. Here, our purpose is to illustrate our Multi-step Integrated graphical and structured discussion e Xercise ( MIX) tool that...
Authors
Martha E. Mather, Jason Bergtold, Marcellus Caldas, Ethan Bernick, Trisha Moore, Gabriel Granco, Aleksey Sheshukov, Ignacio Ciampitti
The Europa Imaging System (EIS) investigation The Europa Imaging System (EIS) investigation
The Europa Imaging System (EIS) consists of a Narrow-Angle Camera (NAC) and a Wide-Angle Camera (WAC) that are designed to work together to address high-priority science objectives regarding Europa’s geology, composition, and the nature of its ice shell. EIS accommodates variable geometry and illumination during rapid, low-altitude flybys with both framing and pushbroom imaging...
Authors
E.P. Turtle, A.S. McEwen, G.W. Patterson, C. M. Ernst, C.M. Elder, K.A. Slack, S.E. Hawkins, J. McDermott, H. M. Meyer, R. DeMajistre, R. Espiritu, H. Seifert, J. Niewola, Michael T. Bland, M.K. Becker, J. Centurelli, G.C. Collins, P. Corlies, H. Darlington, I. J. Daubar, C. Derr, C. Detelich, E. Donald, W. Edens, L. Fletcher, C. Gardner, F. Graham, C.J. Hansen, C. Haslebacher, A.G. Hayes, D. Humm, T.A. Hurford, Randolph L. Kirk, N. W. Kutsop, W.J. Lees, D. T. Lewis, S. London, A. Magner, M.A. Mills, A.C. Barr Mlinar, F. Morgan, F. Nimmo, A. Ocasio Milanes, S. Osterman, C.B. Phillips, A. Pommerol, L. Prockter, L.C. Quick, G. Robbins, J.M. Soderblom, B.A. Stewart, A. Stickle, S.S. Sutton, N. Thomas, I. Torres, O.J. Tucker, R.B. Van Auken, K.A. Wilk
Macro- and micronutrient effects on phytoplankton in Green Bay, Lake Michigan and the western basin of Lake Erie Macro- and micronutrient effects on phytoplankton in Green Bay, Lake Michigan and the western basin of Lake Erie
Efforts to reduce the frequency, extent, and toxicity of harmful algal blooms (HABs) require knowledge about drivers of algal growth, toxin production, and shifts in phytoplankton community composition to cyanobacterial dominance. Although labile nitrogen (N) and phosphorus (P) fuel primary production, micronutrients also play roles as the enzymatic engines that facilitate rapid and...
Authors
Jordyn T. Stoll, James H. Larson, Sean Bailey, Christopher Blackwood, David M. Costello
Arsenic accumulation in Sonora Mud Turtles (Kinosternon sonoriense) in an unusual freshwater food web Arsenic accumulation in Sonora Mud Turtles (Kinosternon sonoriense) in an unusual freshwater food web
Montezuma Well is an unusual fishless, spring-fed, desert wetland in central Arizona. Water in the wetland is naturally enriched with > 100 µg/l dissolved geogenic arsenic (As) and supports a simple aquatic food web dominated by a small number of endemic invertebrate species that achieve high abundances. Previous studies of As among various environmental compartments and organisms in...
Authors
Jeffrey E. Lovich, Thomas R. Kulp, Charles A. Drost, Rodrigo Macipríos, Susan Knowles, Joshua R. Ennen
Microfossil biostratigraphy and paleoenvironments of Cretaceous and Pliocene sediments along Greens Mill Run, North Carolina, USA Microfossil biostratigraphy and paleoenvironments of Cretaceous and Pliocene sediments along Greens Mill Run, North Carolina, USA
Cretaceous sediments are disconformably overlain by Pliocene sediments along the banks of Greens Mill Run, Greenville, North Carolina, located in the central coastal plain. The Cretaceous sediments, composed of glauconitic sand and clay, have previously been informally considered part of the Maastrichtian Peedee Formation. The Pliocene sediments are assigned to the Yorktown Formation and...
Authors
Mikayla Dixon, Stephen J. Culver, David J. Mallinson, Brian T. Huber, Jean Self-Trail, Whittney Spivey, W. Burleigh Harris
Salt marsh habitats and diamondback terrapins in a rapidly changing climate: A review Salt marsh habitats and diamondback terrapins in a rapidly changing climate: A review
The impacts associated with global climate change (e.g., sea-level rise, tropical storms, and warming temperatures) are expected to alter predator–prey interactions, foundation species, and plant community structure in coastal ecosystems. While the complex dynamics of these habitats have been examined under future climate predictions, few ecosystem models incorporate influences from...
Authors
Margaret M. Lamont, Michael J. Osland, Melissa M. Baustian
Neonatal antipredator tactics shape female movement patterns in large herbivores Neonatal antipredator tactics shape female movement patterns in large herbivores
Caring for newborn offspring hampers resource acquisition of mammalian females, curbing their ability to meet the high energy expenditure of early lactation. Newborns are particularly vulnerable, and large herbivores have evolved a continuum of neonatal anti-predator tactics, ranging from immobile hider to highly mobile follower offspring. How these tactics constrain female movements...
Authors
Kamal Atmeh, Christophe Bonenfant, Jean-Michel Gaillard, Mathieu Garel, A.J. Mark Hewison, Pascal Marchand, Nicolas Morellet, Pia Anderwald, Bayarbaatar Buuveibaatar, Jeffrey L. Beck, Matthew S. Becker, Floris M. van Beest, Jodi Berg, Ulrika A. Bergvall, Randall B. Boone, Mark S. Boyce, Simon Chamaill'e-Jammes, Yannick Chaval, Chimeddorj Buyanaa, David A Christianson, Simone Ciuti, Steeve D. Côté, Duane R. Diefenbach, Egil Droge, Johan T. Du Toit, Samantha P. Dwinnell, Julian Fennessy, Flurin Filli, Daniel Fortin, Emma E. Hart, Matthew Hayes, Mark Hebblewhite, Morten Heim, Ivar Herfindal, Marco Heurich, Christian von Hoermann, Katey Huggler, Craig Jackson, Andrew F. Jakes, Paul F. Jones, Petra Kaczensky, Matthew J. Kauffman, Petter Kjellander, Tayler N LaSharr, Leif Egil Loe, Roel May, Philip McLoughlin, Erling L. Meisingset, Evelyn Merrill, Kevin L. Monteith, Thomas Mueller, Atle Mysterud, Dejid Nandintsetseg, Kirk A. Olson, John Payne, Scott Pearson, Ashild Ønvik Pedersen, Dustin H. Ranglack, Adele K. Reinking, Thomas Rempfler, Clifford G Rice, Eivin Røskaft, Bernt-Erik Sæther, Sonia Saïd, Hugo Santacreu, Niels Martin Schmidt, Daan Smit, Jared A. Stabach, Martin-Hugues St-Laurent, Joëlle Taillon, W. David Walter, Kevin White, Guillaume Péron, Anne Loison
Longitudinal and seasonal changes of organic matter sources through a semi-arid river-reservoir system Longitudinal and seasonal changes of organic matter sources through a semi-arid river-reservoir system
The quality and quantity of organic matter (OM) in a river system directly affects ecosystem health; thus, managers benefit from an in-depth understanding of the drivers and sources of OM. In the Snake River, a highly altered river-reservoir system in the semi-arid western United States, OM production and loading are key drivers of reservoir anoxia, which leads to several deleterious...
Authors
Alysa Muir Yoder, Austin K. Baldwin, Mark C. Marvin-DiPasquale, Brett Poulin, Jesse Naymik, David P. Krabbenhoft