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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: 5203

Movement and habitat use of sika and white-tailed deer on Assateague Island National Seashore, Maryland Movement and habitat use of sika and white-tailed deer on Assateague Island National Seashore, Maryland

This research project was conducted to describe habitat use of sika deer (Cervus nippon) and white-tailed deer (Odocoileus virginianus) and possibly attribute the effects of ungulate herbivory to specific deer species, if spatial separation in habitat use could be identified. Sturm (2007) conducted an exclosure study to document the effect of feral horse (Equus caballus) herbivory, deer...
Authors
Duane R. Diefenbach, Sonja Christensen

Warmwater fish in wadeable streams Warmwater fish in wadeable streams

Both “warmwater” and “wadeable” are terms of convenience without precise definition and are used by biologists to describe streams that are generally too warm to have sustainable salmonid populations and can be safely traversed by walking (i.e., a section of stream should have the majority of its length less than 1 m deep, and it should be possible to cross in chest waders in nearly all...
Authors
Charles F. Rabeni, John J. Lyons, Norman Mercado-Silva, James T. Peterson

Multifunctional grass farming: Science and policy considerations Multifunctional grass farming: Science and policy considerations

No abstract available.
Authors
George Boody, Prasanna H. Gowda, John Westra, Caroline van Schaik, Patrick Welle, Bruce C. Vondracek, Dennis Johnson

Evaluating the power to detect temporal trends in fishery independent surveys: A case study based on Gillnets Set in the Ohio waters of Lake Erie for walleye Evaluating the power to detect temporal trends in fishery independent surveys: A case study based on Gillnets Set in the Ohio waters of Lake Erie for walleye

Fishery-independent (FI) surveys provide critical information used for the sustainable management and conservation of fish populations. Because fisheries management often requires the effects of management actions to be evaluated and detected within a relatively short time frame, it is important that research be directed toward FI survey evaluation, especially with respect to the ability...
Authors
Tyler Wagner, Christopher S. Vandergoot, Jeff Tyson

Fledging success is a poor indicator of the effects of bird blow flies on ovenbird survival Fledging success is a poor indicator of the effects of bird blow flies on ovenbird survival

Infestations of bird blow flies (Protocalliphora spp. and Trypocalliphora braueri) have various negative effects on the condition of nestling birds. In the absence of other stressors such as inclement weather, however, infestation alone rarely reduces fledging success. Previous studies have documented effects of blow flies on nestling condition and fledging success. Without information...
Authors
Sean M. Peterson, Henry M. Streby, Paul M. Kapfer

Effects of landscape gradients on wetland vegetation communities: information for large-scale restoration Effects of landscape gradients on wetland vegetation communities: information for large-scale restoration

Projects of the scope of the restoration of the Florida Everglades require substantial information regarding ecological mechanisms, and these are often poorly understood. We provide critical base knowledge for Everglades restoration by characterizing the existing vegetation communities of an Everglades remnant, describing how present and historic hydrology affect wetland vegetation...
Authors
Christa L. Zweig, Wiley M. Kitchens

Rivers and streams: Physical setting and adapted biota Rivers and streams: Physical setting and adapted biota

Streams and rivers are enormously important, with their ecological, and economic value, greatly outweighing their significance on the landscape. Lotic ecology began in Europe with a focus on the distribution, abundance, and taxonomic composition of aquatic organisms and in North American with a focus on fishery biology. Since 1980, stream/river research has been highly interdisciplinary...
Authors
Margaret A. Wilzbach, K.W. Cummins

Short-term response of methane fluxes and methanogen activity to water table and soil warming manipulations in an Alaskan peatland Short-term response of methane fluxes and methanogen activity to water table and soil warming manipulations in an Alaskan peatland

Growing season CH4 fluxes were monitored over a two year period following the start of ecosystem-scale manipulations of water table position and surface soil temperatures in a moderate rich fen in interior Alaska. The largest CH4 fluxes occurred in plots that received both flooding (raised water table position) and soil warming, while the lowest fluxes occurred in unwarmed plots in the...
Authors
M. R. Turetsky, C. C. Treat, M. P. Waldrop, J. M. Waddington, Jennifer W. Harden, A. David McGuire

Impacts of forest age on water use in Mountain ash forests Impacts of forest age on water use in Mountain ash forests

Authors
Stephen A. Wood, Jason Beringer, Lindsay B. Hutley, A. David McGuire, Albert Van Dijk, Musa Kilinc

Hemlock ecosystem monitoring in southern West Virginia Hemlock ecosystem monitoring in southern West Virginia

We initiated a long-term hemlock ecosystem monitoring study in 1998 on the New River Gorge National River (NERI) and Gauley River National Recreation Area (GARI), in Nicholas, Fayette, and Raleigh counties, West Virginia, to quantify ecosystem response to invasion by the hemlock woolly adelgid (HWA). Hemlock vigor and degree of adelgid infestation were quantified in 1998-2007, vegetation...
Authors
Petra Bohall Wood, John H. Perez, John M. Wood

The desperate dozen: Fishes on the brink The desperate dozen: Fishes on the brink

IT IS NO SECRET THAT OUR NATIVE AQUATIC ANIMALS ARE IN DECLINE. There are currently 582 species of animals on the Federal list of endangered and threatened species, 268 of these (46%) are found in freshwater habitats. Of the amazing assemblage of 675 fishes found in southeastern waters, more than a quarter are considered imperiled. While all of the Earth’s ecosystems are in trouble...
Authors
Stuart A. Welsh
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