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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.

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Blooming wildflowers in Pinnacles National Park.

The circular highlights how our research efforts fulfill larger USGS strategic goals.

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Tricolored Heron at Ding Darling National Park

This book is dedicated to those who are or have been associated with the unit program. 

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Yellow-billed Loon on a lake in the northern area of Alaska.

This report provides abstracts of most of the ongoing and recently completed research.

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Filter Total Items: 5011

Effects of the neonicotinoid insecticide clothianidin on southern leopard frog (Rana sphenocephala) tadpole behavior Effects of the neonicotinoid insecticide clothianidin on southern leopard frog (Rana sphenocephala) tadpole behavior

Neonicotinoid insecticides are highly water soluble with relatively long half-lives, which allows them to move into and persist in aquatic ecosystems. However, little is known of the impacts of neonicotinoids on non-target vertebrates, especially at sublethal concentrations. We evaluated the effects of the neonicotinoid clothianidin on the behavior of southern leopard frog tadpoles (Rana
Authors
J. N. Holtswarth, F. E. Rowland, Holly J. Puglis, Michelle L. Hladik, Elisabeth B. Webb
By
Water Resources Mission Area, Ecosystems Mission Area, Cooperative Research Units, California Water Science Center, Columbia Environmental Research Center

Activity patterns of cave-dwelling bat species during pre-hibernation swarming and post-hibernation emergence in the central Appalachians Activity patterns of cave-dwelling bat species during pre-hibernation swarming and post-hibernation emergence in the central Appalachians

In North America, bat research efforts largely have focused on summer maternity colonies and winter hibernacula, leaving the immediate pre- and post-hibernation ecology for many species unstudied. Understanding these patterns and processes is critical for addressing potential additive impacts to White-nose Syndrome (WNS)-affected bats, as autumn is a time of vital weight gain and fat...
Authors
Michael S. Muthersbaugh, W. Mark Ford, Alexander Silvis, Karen E. Powers
By
Cooperative Research Units

Effects of distribution, behavior, and climate on mule deer survival Effects of distribution, behavior, and climate on mule deer survival

Mule deer (Odocoileus hemionus hemionus) populations in North America are a valuable economic wildlife resource, with the managed harvest of this species reflecting societal values and recreational opportunities in many parts of the western United States. Managing mule deer populations while allowing for harvest requires an understanding of the species’ population dynamics, including the...
Authors
Elizabeth M. Schuyler, Katie Dugger, Dewaine H. Jackson
By
Cooperative Research Units

Attack of the PCR clones: Rates of clonality have little effect on RAD-seq genotype calls Attack of the PCR clones: Rates of clonality have little effect on RAD-seq genotype calls

Interpretation of high-throughput sequence data requires an understanding of how decisions made during bioinformatic data processing can influence results. One source of bias that is often cited is PCR clones (or PCR duplicates). PCR clones are common in restriction site-associated sequencing (RAD-seq) data sets, which are increasingly being used for molecular ecology. To determine the...
Authors
Peter T. Euclide, Garrett McKinney, Matthew Bootsma, Charlene Tarsa, Mariah Meek, Wesley Larson
By
Cooperative Research Units

Distribution and status of trout and char in North America Distribution and status of trout and char in North America

No abstract available.
Authors
Phaedra Budy, Kevin B. Rogers, Yoichiro Kanno, Brooke E Penaluna, Nathaniel Hitt, Gary P. Thiede, Jason B. Dunham, Chad Mellison, William Somer, James DeRito
By
Cooperative Research Units

Computational sustainability: Computing for a better world and a sustainable future Computational sustainability: Computing for a better world and a sustainable future

Computational sustainability aims to develop computational methods to help solve environmental, economic, and societal problems and thereby facilitate a path towards a sustainable future. Sustainability problems are unique in scale, impact, complexity, and richness, offering challenges but also opportunities for the advancement of the state of the art of computing and information science...
Authors
Carla Gomes, Thomas Dietterich, Christopher Barrett, Jon Conrad, Bistra Dilkina, Stefano Ermon, Fei Fang, Andrew Farnsworth, Alan Fern, Xiaoli Fern, Daniel Fink, Daniel Fisher, Alexander Flecker, Daniel Freund, Angela K. Fuller, John Gregoire, John Hopcroft, Steve Kelling, Zico Kolter, Warren Powell, Nicole Sintov, John Selker, Bart Selman, Daniel Sheldon, David Shmoys, Milind Tambe, Weng-keen Wong, Christopher Wood, Xiaojian Wu, Yexiang Xue, Abdul-Aziz Yakuba, Amulya Yadav, Mary Lou Zeeman
By
Cooperative Research Units

Clarifying how hunt-specific experiences affect satisfaction among more avid and less avid waterfowl hunters Clarifying how hunt-specific experiences affect satisfaction among more avid and less avid waterfowl hunters

Marketing research methods could enhance understanding of hunter satisfaction, a key metric for state wildlife management agencies. We use three marketing research approaches—revised importance-performance, importance-grid, and penalty-reward-contrast analysis—to examine the determinants of waterfowl hunter satisfaction. These methods have seen limited application in research on hunting...
Authors
David C. Fulton, Susan A. Schroeder, Louis Cornicelli, Steven D. Cordts, Jeffrey S. Lawrence
By
Cooperative Research Units

Framework for using downscaled climate model projections in ecological experiments to quantify plant and soil responses Framework for using downscaled climate model projections in ecological experiments to quantify plant and soil responses

Soil and plant responses to climate change can be quantified in controlled settings. However, the complexity of climate projections often leads researchers to evaluate ecosystem response based on general trends, rather than specific climate model outputs. Climate projections capture spatial and temporal climate extremes and variability that are lost when using mean climate trends. In...
Authors
Rachel K. Owen, Elisabeth B. Webb, Keith W. Goyne, Bohumil M. Svoma, Sagar Gautam
By
Cooperative Research Units

Effects of air exposure on survival of Yellowstone Cutthroat Trout angled from a stream with warm water temperatures Effects of air exposure on survival of Yellowstone Cutthroat Trout angled from a stream with warm water temperatures

We evaluated the effects of air exposure on Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri caught and released in a cold-water stream with elevated water temperatures (i.e., > 14°C) in southeastern Idaho. Anglers caught fish in a 2.3-km section of Fall Creek, Idaho, during August 2018. Sampled fish remained underwater while we measured and then tagged them with T-bar anchor...
Authors
Darcy K. McCarrick, Curtis J. Roth, Daniel J. Schill, Brett High, Michael Quist
By
Cooperative Research Units

An importance–satisfaction analysis of trout license holders in Georgia An importance–satisfaction analysis of trout license holders in Georgia

As anglers become increasingly diverse, fisheries managers are challenged to find ways to satisfy users with divergent preferences while conserving a limited resource on a limited budget. With this management challenge in mind, this study combines previous angler specialization research with an importance–satisfaction analysis (ISA) to aid fisheries managers in better understanding users...
Authors
H. J. TenHarmsel, B. B. Boley, Brian J. Irwin, Cecil A. Jennings
By
Cooperative Research Units

A food web modeling assessment of Asian Carp impacts in the Middle and Upper Mississippi River, USA A food web modeling assessment of Asian Carp impacts in the Middle and Upper Mississippi River, USA

The invasion of non-native fishes has caused a great detriment to many of our native fishes. Since the introduction of invasive carps, such as Silver, Bighead, Common and Grass Carp, managers and researcher have been struggling to remove these species while also hypothesizing the detriment of further invasion. This study developed a food web model of four locations on the Mississippi...
Authors
Nicholas W. Kramer, Quinton E. Phelps, Clay Pierce, Michael E. Colvin
By
Cooperative Research Units

Invertebrate prey contributions to juvenile Coho Salmon diet from riparian habitats along three Alaska streams: Implications for environmental change Invertebrate prey contributions to juvenile Coho Salmon diet from riparian habitats along three Alaska streams: Implications for environmental change

Stream fish rely on a mix of terrestrial and aquatic prey sources. While the importance of terrestrial invertebrates as a food source for stream fish is well documented, the role of aquatic insects that emerge from the stream as winged adult insects (aquatic winged adults) and return to the stream as prey is less understood. In this study we determined the proportion of total diet for...
Authors
Jess Grunblatt, Benjamin E. Meyer, Mark S. Wipfli
By
Cooperative Research Units
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