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: 5124
A fishery after the decline: The Susquehanna River Smallmouth Bass story A fishery after the decline: The Susquehanna River Smallmouth Bass story
The Smallmouth Bass Micropterus dolomieu fishery in the Susquehanna River basin, Pennsylvania, is one of the most socioeconomically important fisheries in the region and has recently undergone considerable changes. These changes started in 2005, when disease was documented in young-of-the-year (age-0) Smallmouth Bass. Shortly thereafter, declines in abundance of both juveniles and adults...
Authors
Megan K. Schall, Geoffrey D. Smith, Vicki S. Blazer, Heather L. Walsh, Yan Li, Tyler Wagner
Genomic identification of intergeneric hybrids in New World wood-warblers (Aves: Parulidae) Genomic identification of intergeneric hybrids in New World wood-warblers (Aves: Parulidae)
The documentation of hybrids between distantly related taxa can illustrate an initial step to explain how genes might move between species that do not exhibit complete reproductive isolation. In birds, some of the most phylogenetically distant hybrid combinations occur between genera. Traditionally, morphological and plumage characters have been used to assign the identity of the...
Authors
David P. L. Toews, Gunnar R. Kramer, Andrew W. Jones, Courtney L. Brennan, Benjamin E. Cloud, David E. Andersen, Irby J. Lovette, Henry Streby
Vegetation sampling and management Vegetation sampling and management
What is the utility of vegetation measurements for wildlife managers? In the prairie, savanna, tundra, forest, steppe, and wetland regions of the world, mixtures of plant species provide wildlife with food, cover and, in some circumstances, water; the 3 essential habitat elements necessary to sustain viable wildlife populations. We define habitat in reference to use of a vegetation type...
Authors
Kenneth F. Higgins, Kurt Jenkins, Daniel W. Uresk, Lora B. Perkins, Kent C. Jensen, Jack E. Norland, Robert W. Klaver, David E. Naugle
Research and experimental design Research and experimental design
No abstract available.
Authors
Edward O. Garton, Jocelyn L. Aycrigg, Courtney J. Conway, Jon S. Horne
Complex patterns of genetic and morphological differentiation in the Smallmouth Bass subspecies (Micropterus dolomieu dolomieu and M. d. velox) of the Central Interior Highlands Complex patterns of genetic and morphological differentiation in the Smallmouth Bass subspecies (Micropterus dolomieu dolomieu and M. d. velox) of the Central Interior Highlands
Due to geologic processes and recent anthropogenic introductions, patterns of genetic and morphological diversity within the Smallmouth Bass (Micropterus dolomieu), which are endemic to the central and eastern United States (USA), are poorly understood. We assessed genetic and morphological differentiation between the widespread Northern Smallmouth Bass (M. d. dolomieu) and the more...
Authors
Joe C. Gunn, Leah K. Berkman, Jeff K. Koppelman, A. T. Taylor, Shannon K. Brewer, James M. Long, Lori S. Eggert
Adaptive management in wildlife conservation Adaptive management in wildlife conservation
No abstract available.
Authors
John F. Organ, Daniel J. Decker, Shawn J. Riley, John E. Mcdonald, Shane P. Mahoney
Hypogeous, sequestrate fungi (genus Elaphomyces) found at small-mammal foraging sites in high-elevation conifer forests of West Virginia Hypogeous, sequestrate fungi (genus Elaphomyces) found at small-mammal foraging sites in high-elevation conifer forests of West Virginia
Little is known about hypogeous, sequestrate (i.e., truffles) fungi in the eastern United States. Since the fruiting bodies of these fungi are part of the diet of multiple rodent species, filling data gaps is important to understanding more about truffle species distribution and habitat associations. During a microhabitat study on radio-collared Virginia Northern Flying Squirrels...
Authors
Corinne A. Diggins, Michael A. Castellano, W. Mark Ford
Managing state lands for wildlife Managing state lands for wildlife
State-owned lands are a vital component of state fish and wildlife management programs because they contain valuable habitats for a diversity of wild species and often provide important public access. The Association of Fish and Wildlife Agencies (AFWA 2017) reported state agencies manage or administer approximately 188 million hectares of land, including 10 million hectares under fee...
Authors
Thomas Ryder, John F. Organ
The role of phosphorus and nitrogen on chlorophyll a: Evidence from hundreds of lakes The role of phosphorus and nitrogen on chlorophyll a: Evidence from hundreds of lakes
The effect of nutrients on phytoplankton biomass in lakes continues to be a subject of debate by aquatic scientists. However, determining whether or not chlorophyll a (CHL) is limited by phosphorus (P) and/or nitrogen (N) is rarely considered using a probabilistic method in studies of hundreds of lakes across broad spatial extents. Several studies have applied a unified CHL-nutrient...
Authors
Zhongyao Liang, Patricia A. Soranno, Tyler Wagner
Effectiveness of partial sedation to reduce stress in captured mule deer Effectiveness of partial sedation to reduce stress in captured mule deer
Information garnered from the capture and handling of free-ranging animals helps advance understanding of wildlife ecology and can aid in decisions on wildlife management. Unfortunately, animals may experience increased levels of stress, injuries, and death resulting from captures (e.g., exertional myopathy, trauma). Partial sedation is a technique proposed to alleviate stress in animals...
Authors
Anna C. Ortega, Samantha P. Dwinnell, Tayler N. Lasharr, Rhiannon P. Jakopak, Kristin Denryter, Katey S. Huggler, Matthew M. Hayes, Ellen O. Aikens, Tana L Verzuh, Alexander B. May, Matthew J. Kauffman, Kevin L. Monteith
Breeding biology of the Mountain Wren-Babbler (Gypsophila crassus) Breeding biology of the Mountain Wren-Babbler (Gypsophila crassus)
Life history theory in ornithology has been mostly based on temperate birds in part because a relative paucity of biological data has been described for tropical species. Expanding our knowledge about life histories of tropical birds can help us to better understand global trends in life history strategies. To aid in this endeavor, we studied Mountain Wren-Babblers (Gypsophila crassus)...
Authors
Morgan C. Slevin, Enroe E. Bin Soudi, Thomas E. Martin
Availability and timing of fathead minnow supplementation influence largemouth bass survival and production in rearing ponds Availability and timing of fathead minnow supplementation influence largemouth bass survival and production in rearing ponds
Adjustments to rearing practices should be justified with increases in production, stocking success, or angler satisfaction. Largemouth bass (Micropterus salmoides) production was assessed between hatchery ponds where fish were restricted to an invertebrate diet or received supplemental fathead minnow (Pimephales promelas) forage during 2015. At harvest, age-0 bass yield was 4.5 times...
Authors
Steven R. Chipps, Matthew J. Ward