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: 5083
Wildlife policy and law in South America Wildlife policy and law in South America
No abstract available.
Authors
Francisco Vilella
Evaluation of internet surveys for conducting statewide angler surveys in South Dakota Evaluation of internet surveys for conducting statewide angler surveys in South Dakota
Stakeholder information is critical for effective fisheries management. Agencies have traditionally used infrequent mail surveys to collect human dimensions data. Internet surveys provide cost savings, but are associated with caution due to data quality issues. To improve study validity, survey access can be controlled using email invitations, but because these addresses are voluntary...
Authors
Larry M. Gigliotti, Kjetil Henderson
Low-dose stimulation of growth of the harmful alga, Prymnesium parvum, by glyphosate and glyphosate-based herbicides Low-dose stimulation of growth of the harmful alga, Prymnesium parvum, by glyphosate and glyphosate-based herbicides
Glyphosate-based herbicides (GBH) are widely used around the globe. While generally toxic to phototrophs, organic phosphorus in glyphosate can become available to glyphosate-resistant phytoplankton and contribute to algal bloom development. Few studies have examined the effects of GBH on growth of eukaryotic microalgae and information for the toxic bloom-forming haptophyte, Prymnesium...
Authors
Brittanie L. Dabney, Reynaldo Patino
Patch and landscape responses of bird abundance to fragmentation in agroecosystems of east-central Argentina Patch and landscape responses of bird abundance to fragmentation in agroecosystems of east-central Argentina
Forest fragmentation in agroecosystems is linked to declines of avian species worldwide. Agriculture has greatly reduced native forest cover in east-central Argentina. Assessing the influence of fragmentation on forest bird populations is vital to inform reliable conservation and management strategies for the Espinal region of Argentina. We determined the relationships of vegetation...
Authors
Francisco Vilella, N.C. Calamari, P.A. Mercuri
Subterranean invasion by gapped ringed crayfish: Effectiveness of a removal effort and barrier installation Subterranean invasion by gapped ringed crayfish: Effectiveness of a removal effort and barrier installation
Non-native crayfish invasion is a major threat to many stream fauna; however, invasions in subterranean habitats are rarely documented. Our study objectives were to examine demographics and morphological and life-history traits of a gapped ringed crayfish Faxonius neglectus chaenodactylus population that invaded Tumbling Creek Cave and determine the effects of removal on the population...
Authors
J.B. Mouser, D.C. Ashley, T. Aley, Shannon K. Brewer
Confirmation of diving and swimming behavior in the Sora (Porzana carolina) Confirmation of diving and swimming behavior in the Sora (Porzana carolina)
We first observed Sora (Porzana carolina) swimming and diving under water while capturing them with hand nets at night. Since that time, we have observed the behavior several times and documented it with photos and video. Rails are among the most elusive birds. Despite living in wetlands, water depth has often been discussed as a factor limiting habitat use by rails, with the assumption...
Authors
David G. Krementz
Stable pack abundance and distribution in a harvested wolf population Stable pack abundance and distribution in a harvested wolf population
Harvesting gray wolves (Canis lupus) could affect the abundance and distribution of packs, but the frequency of change in pack occurrence (i.e., turnover) and relative effects of harvest compared to environmental factors is unclear. We used noninvasive genetic sampling, hunter surveys, and occupancy models to evaluate the effect of harvest on occurrence and turnover of packs in a...
Authors
Sarah B. Bassing, David E. Ausband, Michael S. Mitchell, Paul Lukacs, Allison Keever, Greg Hale, Lisette Waits
Bat activity following repeated prescribed fire in the central Appalachians, USA Bat activity following repeated prescribed fire in the central Appalachians, USA
Background To restore and manage fire-adapted forest communities in the central Appalachians, USA, land managers are now increasingly prioritizing use of prescribed fire. However, it is unclear how the reintroduction of fire following decades of suppression will affect bat communities, particularly where white-nose syndrome-related population declines of many cave-hibernating bat species...
Authors
Lauren V. Austin, Alexander Silvis, Michael S. Muthersbaugh, Karen E. Powers, W. Mark Ford
Movement and diel habitat use of juvenile Neosho Smallmouth Bass in an Ozark stream Movement and diel habitat use of juvenile Neosho Smallmouth Bass in an Ozark stream
Documenting fish movement patterns and examining relationships with both fish and habitat characteristics are essential aspects of sound conservation and management. Stream fish movement and habitat use have been associated with a myriad of factors, and variability among individuals is common. Movement and habitat use patterns of juvenile Smallmouth Bass Micropterus dolomieu in streams...
Authors
Andrew D. Miller, Robert Mollenhauer, Shannon K. Brewer
The development of a GIS methodology to identify oxbows and former stream meanders from LiDAR-derived digital elevation models The development of a GIS methodology to identify oxbows and former stream meanders from LiDAR-derived digital elevation models
Anthropogenic development of floodplains and alteration to natural hydrological regimes have resulted in extensive loss of off-channel habitat. Interest has grown in restoring these habitats as an effective conservation strategy for numerous aquatic species. This study developed a process to reproducibly identify areas of former stream meanders to assist future off-channel restoration...
Authors
Courtney L. Zambory, Harvest Ellis, Clay Pierce, Kevin J. Roe, Michael J. Weber, Keith E. Schilling, Nathan C. Young
Population characteristics and management of lentic populations of nonnative Burbot in the Green River system, Wyoming Population characteristics and management of lentic populations of nonnative Burbot in the Green River system, Wyoming
Fishes introduced outside of their native distributions have the potential to negatively affect their recipient ecosystems. Since their illegal introduction into the Green River, Wyoming, in the 1990s, Burbot Lota lota have been sampled in lotic and lentic environments throughout the Green River system where they pose a threat to native fishes and valuable sport fisheries. In response to...
Authors
Tucker A. Brauer, Michael C. Quist, Darren T. Rhea, Troy W. Laughlin, John D. Walrath
Pitfall traps: A review of methods for estimating arthropod abundance Pitfall traps: A review of methods for estimating arthropod abundance
Pitfall traps are commonly used in diet studies for insectivorous and omnivorous wildlife. Pitfall trap methodologies and designs vary tremendously among studies and investigators, and this variation and lack of standardization limits scientists’ abilities to compare their results to others. We conducted a literature review to identify the most common methods used by past investigators...
Authors
Courtney J. Conway, Rhianna Hohbein