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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: 4351

A review of factors affecting PIT tag detection using mobile arrays and use of mobile antennas to detect PIT-tagged suckers in a wadeable Ozark stream

Advantages of passive integrated transponder (PIT) tags are their small size, longevity, and low-cost compared to other tags. PIT tags are often used in fisheries to study movement patterns, survival, or estimate population size. However, PIT tags are limited by their short detection distance. Mobile PIT antennas may increase the utility of PIT tags in fisheries. In this study, we synthesize the c
Authors
Douglas L. Zentner, Skylar Wolf, Shannon K. Brewer, Daniel E. Shoup
By
Cooperative Research Units

Post-white-nose syndrome passive acoustic sampling effort for determining bat species occupancy within the mid-Atlantic region

We assessed the sampling effort requirements for detecting the presence of extant bat species following the impact of white-nose syndrome in the mid-Atlantic region of the United States. We acoustically sampled 27,796 nights across 846 sites between 15 May and 15 August 2016–2018 within the District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia. We developed simulations to deter
Authors
Sabrina M. Deeley, Nicholas J. Kalen, Samuel R. Freeze, Elaine L. Barr, W. Mark Ford
By
Cooperative Research Units

Declining diversity of wild-caught species puts dietary nutrient supplies at risk

Although biodiversity loss adversely influences a variety of ecosystem functions, how declining wild food diversity affects nutrient supplies for people is poorly understood. Here, we analyze the impact of declining biodiversity on nutrients supplied by fish using detailed information from the Peruvian Amazon, where inland fisheries provide a critical source of nutrition for many of the region’s 8
Authors
Sebastian A. Heilpern, Ruth DeFries, Kathryn J. Fiorella, Alexander Flecker, Suresh Sethi, María Uriarte, Shahid Naeem
By
Cooperative Research Units

Improving short-term recruitment forecasts for coho salmon using a spatiotemporal integrated population model

Fishery managers often rely on forecasts of future population abundance to set allowable harvest quotas or exploitation rates. While there has been substantial research devoted to identifying environmental factors that can predict recruitment for individual populations, such correlations often degrade over time, thereby limiting their utility for management. Conversely, examining multiple populati
Authors
Lukas B. DeFilippo, Thomas W. Buehrens, Mark David Scheuerell, Neala W. Kendall, Daniel E. Schindler
By
Cooperative Research Units

Large-scale variation in wave attenuation of oyster reef living shorelines and the influence of inundation duration

One of the paramount goals of oyster reef living shorelines is to achieve sustained and adaptive coastal protection, which requires meeting ecological (i.e., develop a self-sustaining oyster population) and engineering (i.e., provide coastal defense) targets. In a large-scale comparison along the Atlantic and Gulf coasts of the United States, the efficacy of various designs of oyster reef living s
Authors
R. L. Morris, Megan K. La Peyre, B. M. Webb, D. A. Marshall, D. M. Bilkovic, J. Cebrian, G. McClenachan, K. M. Kibler, L. J. Walters, D. Bushek, E. L. Sparks, N. A. Temple, J. A. Moody, K. Angstadt, J. Goff, M. K. Boswell, P. E. Sacks, S. E. Swearer
By
Cooperative Research Units, Gulf of Mexico

Does type, quantity, and location of habitat matter for fish diversity in a Great Plains riverscape?

Fisheries professionals frequently measure habitat type and amount, but less often measure the importance of where those habitats are located and in what combinations. We address this challenge by testing whether the individual and combined type, quantity, and location of habitat affects fish diversity in the upper Neosho River basin, Kansas, as a different approach to measuring habitat heterogene
Authors
Sean M. Hitchman, Martha E. Mather, Joseph M. Smith
By
Cooperative Research Units

Selection of habitat-enhancing plants depends on predator-prey interactions

Shallow areas of drawdown reservoirs are often devoid of adequate fish habitat due to degradation associated with unnatural and relatively invariable cycles of exposure and flooding. One method of enhancing fish habitat in these areas is to sow exposed shorelines with agricultural plants to provide structure once flooded. It remains unclear if some plants may be more suitable than others to provid
Authors
G. Coppola, Leandro E. Miranda, M. E. Colvin, H. R. Hatcher, M. A. Lashley
By
Cooperative Research Units

Environmental conditions associated with occurrences of the threatened Yaqui Catfish in the Yaqui River Basin, Mexico

The Yaqui Catfish Ictalurus pricei is an understudied species, with limited information available on its ecology, distribution, and local habitat use. Native to the southwestern United States and northwestern Mexico, Yaqui Catfish populations are declining, which has prompted listing of the species as threatened in the United States and as a species of concern in Mexico. Water overallocation, habi
Authors
T. Hafen, A. T. Taylor, D.A. Hendrickson, D.R. Stewart, James M. Long
By
Cooperative Research Units

Range-wide declines of northern spotted owl populations in the Pacific Northwest: A meta-analysis

The northern spotted owl (Strix occidentalis caurina) inhabits older coniferous forests in the Pacific Northwest and has been at the center of forest management issues in this region. The immediate threats to this federally listed species include habitat loss and competition with barred owls (Strix varia), which invaded from eastern North America. We conducted a prospective meta-analysis to assess
Authors
Alan B. Franklin, Katie M. Dugger, Damon B. Lesmeister, Raymond J. Davis, J. David Wiens, Gary C. White, James D. Nichols, James E. Hines, Charles B. Yackulic, Carl J. Schwarz, Steven H. Ackers, Andrew L. Stevens, Larissa L. Bailey, Robin G. Brown, Jesse Burgher, Kenneth P. Burnham, Peter C. Carlson, Tara Chestnut, Mary M Conner, Krista E. Dilione, Eric D. Forsman, Elizabeth M. Glenn, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, Julianna M. Jenkins, William L. Kendall, David W Lamphear, Christopher McCafferty, Trent L. McDonald, Janice A Reid, Jeremy T. Rockweit, David C. Simon, Stan G. Sovern, James Swingle, Heather Wise
By
Ecosystems Mission Area, Cooperative Research Units, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Southwest Biological Science Center

Hydrologic variation influences stream fish assemblage dynamics through flow regime and drought

Hydrologic variation can play a major role in structuring stream fish assemblages and relationships between hydrology and biology are likely to be influenced by flow regime. We hypothesized that more variable flow regimes would have lower and more variable species richness, higher species turnover and lower assemblage stability, and greater abiotic environment-fish relationships than more stable f
Authors
Daniel D. Magoulick, M. P. Dekar, S. W. Hodges, M. K. Scott, M. R. Rabalais, C. M. Bare
By
Cooperative Research Units

Modeling effects of disturbance across life history strategies of stream fishes

A central goal of population ecology is to establish linkages between life history strategy, disturbance, and population dynamics. Globally, disturbance events such as drought and invasive species have dramatically impacted stream fish populations and contributed to sharp declines in freshwater biodiversity. Here, we used RAMAS-Metapop to construct stage-based demographic metapopulation models for
Authors
Robert J. Fournier, Nick R. Bond, Daniel D. Magoulick
By
Cooperative Research Units

Moose habitat selection and fitness consequences during two critical winter tick life stages in Vermont, United States

The moose (Alces alces) is a charismatic species in decline across much of their southern distribution in North America. In the northeastern United States, much of the reduction has been attributed to winter tick (Dermacentor albipictus) infestations. Winter ticks are fairly immobile throughout all life stages, and therefore their distribution patterns at any given time are shaped largely by the o
Authors
Joshua Blouin, Jacob Debow, Elias Rosenblatt, James E. Hines, Cedric Alexander, Katherina Gieder, Nicholas Fortin, James Murdoch, Therese M. Donovan
By
Cooperative Research Units
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