Publications
Browse publications authored by our scientists. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 5125
Greater sage-grouse winter habitat use on the eastern edge of their range Greater sage-grouse winter habitat use on the eastern edge of their range
Greater sage-grouse (Centrocercus urophasianus) at the western edge of the Dakotas occur in the transition zone between sagebrush and grassland communities. These mixed sagebrush (Artemisia sp.) and grasslands differ from those habitats that comprise the central portions of the sage-grouse range; yet, no information is available on winter habitat selection within this region of their...
Authors
Christopher C. Swanson, Mark A. Rumble, Troy W. Grovenburg, Nicholas W. Kaczor, Robert W. Klaver, Katie M. Herman-Brunson, Jonathan A. Jenks, Kent C. Jensen
Expert assessment of vulnerability of permafrost carbon to climate change Expert assessment of vulnerability of permafrost carbon to climate change
Approximately 1700 Pg of soil carbon (C) are stored in the northern circumpolar permafrost zone, more than twice as much C than in the atmosphere. The overall amount, rate, and form of C released to the atmosphere in a warmer world will influence the strength of the permafrost C feedback to climate change. We used a survey to quantify variability in the perception of the vulnerability of
Authors
E.A.G. Schuur, B.W. Abbott, W.B. Bowden, V. Brovkin, P. Camill, J.G. Canadell, J. P. Chanton, F. S. Chapin, T.R. Christensen, P. Ciais, B.T. Crosby, C.I. Czimczik, G. Grosse, J. Harden, D.J. Hayes, G. Hugelius, J.D. Jastrow, Jack B. Jones, Thomas Kleinen, C.D. Koven, G. Krinner, P. Kuhry, D.M. Lawrence, A. D. McGuire, Susan M. Natali, J. A. O'Donnell, C.-L. Ping, W.J. Riley, A. Rinke, V.E. Romanovsky, A. B. K. Sannel, C. Schädel, K. Schaefer, J. Sky, Z.M. Subin, C. Tarnocai, M.R. Turetsky, M. P. Waldrop, K.M. Walter Anthony, K.P. Wickland, C. J. Wilson, S.A. Zimov
Newly documented host fishes for the eastern elliptio mussel (Elliptio complanata) Newly documented host fishes for the eastern elliptio mussel (Elliptio complanata)
The eastern elliptio Elliptio complanata is a common, abundant, and ecologically important freshwater mussel that occurs throughout the Atlantic Slope drainage in the United States and Canada. Previous research has shown E. complanata glochidia to be host fish generalists, parasitizing yellow perch Perca flavescens, banded killifish Fundulus diaphanus, banded sculpin Cottus carolinae...
Authors
William A. Lellis, Barbara St. John White, Jeffrey C. Cole, Connie S. Johnson, Julie L. Devers, Ellen van Snik-Gray, Heather S. Galbraith
Effects of isolation and fishing on the marine ecosystems of Easter Island and Salas y Gómez, Chile Effects of isolation and fishing on the marine ecosystems of Easter Island and Salas y Gómez, Chile
1. An expedition to Salas y Gómez and Easter islands was conducted to develop a comprehensive baseline of the nearshore marine ecosystem, to survey seamounts of the recently created Motu Motiro Hiva Marine Park (MMHMP) – a no-take marine reserve of 150 000 km2 – and to compare these results with Easter Island where the marine ecosystem is similar but has no marine protection. 2. Live...
Authors
Alan M. Friedlander, Enric Ballesteros, Jim Beets, Eric Berkenpas, Carlos F. Gaymer, Matthias Gorny, Enric Sala
Practical guidance on characterizing availability in resource selection functions under a use-availability design Practical guidance on characterizing availability in resource selection functions under a use-availability design
Habitat selection is a fundamental aspect of animal ecology, the understanding of which is critical to management and conservation. Global positioning system data from animals allow fine-scale assessments of habitat selection and typically are analyzed in a use-availability framework, whereby animal locations are contrasted with random locations (the availability sample). Although most...
Authors
Joseph M. Northrup, Mevin Hooten, Charles R. Anderson, George Wittemyer
Reconciling resource utilization and resource selection functions Reconciling resource utilization and resource selection functions
Summary: 1. Analyses based on utilization distributions (UDs) have been ubiquitous in animal space use studies, largely because they are computationally straightforward and relatively easy to employ. Conventional applications of resource utilization functions (RUFs) suggest that estimates of UDs can be used as response variables in a regression involving spatial covariates of interest. 2...
Authors
Mevin Hooten, Ephraim M. Hanks, Devin S. Johnson, Mat W. Alldredge
Survival and behavior of Chinese mystery snails (Bellamya chinensis) in response to simulated water body drawdowns and extended air exposure Survival and behavior of Chinese mystery snails (Bellamya chinensis) in response to simulated water body drawdowns and extended air exposure
Nonnative invasive mollusks degrade aquatic ecosystems and induce economic losses worldwide. Extended air exposure through water body drawdown is one management action used for control. In North America, the Chinese mystery snail (Bellamya chinensis) is an invasive aquatic snail with an expanding range, but eradication methods for this species are not well documented. We assessed the...
Authors
Kody M. Unstad, Daniel R. Uden, Craig R. Allen, Noelle M. Chaine, Danielle M. Haak, Robert A. Kill, Kevin L. Pope, Bruce J. Stephen, Alec Wong
Microhabitat use of the diamond darter Microhabitat use of the diamond darter
The only known extant population of the diamond darter (Crystallaria cincotta) exists in the lower 37 km of Elk River, WV, USA. Our understanding of diamond darter habitat use was previously limited, because few individuals have been observed during sampling with conventional gears. We quantified microhabitat use of diamond darters based on measurements of water depth, water velocity and...
Authors
Stuart A. Welsh, Dustin M. Smith, Nate D. Taylor
To stock or not to stock? Assessing restoration potential of a remnant American shad spawning run with hatchery supplementation To stock or not to stock? Assessing restoration potential of a remnant American shad spawning run with hatchery supplementation
Hatchery supplementation has been widely used as a restoration technique for American Shad Alosa sapidissima on the East Coast of the USA, but results have been equivocal. In the Penobscot River, Maine, dam removals and other improvements to fish passage will likely reestablish access to the majority of this species’ historic spawning habitat. Additional efforts being considered include...
Authors
Michael M. Bailey, Joseph D. Zydlewski
A novel approach to surveying sturgeon using side-scan sonar and occupancy modeling A novel approach to surveying sturgeon using side-scan sonar and occupancy modeling
Technological advances represent opportunities to enhance and supplement traditional fisheries sampling approaches. One example with growing importance for fisheries research is hydroacoustic technologies such as side-scan sonar. Advantages of side-scan sonar over traditional techniques include the ability to sample large areas efficiently and the potential to survey fish without...
Authors
H. Jared Flowers, Joseph E. Hightower
Seasonal comparison of aquatic macroinvertebrate assemblages in a flooded coastal freshwater marsh Seasonal comparison of aquatic macroinvertebrate assemblages in a flooded coastal freshwater marsh
Marsh flooding and drying may be important factors affecting aquatic macroinvertebrate density and distribution in coastal freshwater marshes. Limited availability of water as a result of drying in emergent marsh may decrease density, taxonomic diversity, and taxa richness. The principal objectives of this study are to characterize the seasonal aquatic macroinvertebrate assemblage in a...
Authors
Sung-Ryong Kang, Sammy L. King
Incorporating harvest rates into the sex-age-kill model for white-tailed deer Incorporating harvest rates into the sex-age-kill model for white-tailed deer
Although monitoring population trends is an essential component of game species management, wildlife managers rarely have complete counts of abundance. Often, they rely on population models to monitor population trends. As imperfect representations of real-world populations, models must be rigorously evaluated to be applied appropriately. Previous research has evaluated population models...
Authors
Andrew S. Norton, Duane R. Diefenbach, Christopher S. Rosenberry, Bret D. Wallingford