Cooperative Research Units
Home
Programs L2 Landing Page
Grassland bird associations with introduced and native grass Conservation Reserve Program fields in the Southern High Plains
We examined relative abundances of grassland birds among Conservation Reserve Program (CRP) fields seeded with 2 monocultures of introduced grass species and 2 mixes of native grasses in the Southern High Plains of Texas. We assessed bird compositions among these 4 cover types and between the cover types pooled into categories of introduced and...
Thompson, Thomas R.; Boal, Clint W.; Lucia, Duane Hemlock ecosystem monitoring of New River Gorge National River and Gauley River National Recreation Area vegetation and bird communities: 1998–2008
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 the effects of hemlock woolly adelgid (HWA) on forest ecosystem dynamics. Hemlock vigor and degree of adelgid...
Wood, John M.; Wood, Petra Bohall; Perez, John Individual variation in baseline and stress-induced corticosterone and prolactin levels predicts parental effort by nesting mourning doves
Endocrine systems have an important mechanistic role in structuring life-history trade-offs. During breeding, individual variation in prolactin (PRL) and corticosterone (CORT) levels affects behavioral and physiological processes that drive trade-offs between reproduction and self-maintenance. We examined patterns in...
Miller, David A.; Vleck, Carol M.; Otis, David L. Influences of high-flow events on a stream channel altered by construction of a highway bridge: A case study
Impacts of highway construction on streams in the central Appalachians are a growing concern as new roads are created to promote tourism and economic development in the area. Alterations to the streambed of a first-order stream, Sauerkraut Run, Hardy County, WV, during construction of a highway overpass included placement and removal of a...
Hedrick, Lara B.; Welsh, Stuart A.; Anderson, James T. Interactions between soil thermal and hydrological dynamics in the response of Alaska ecosystems to fire disturbance
Soil temperature and moisture are important factors that control many ecosystem processes. However, interactions between soil thermal and hydrological processes are not adequately understood in cold regions, where the frozen soil, fire disturbance, and soil drainage play important roles in controlling interactions among these processes. These...
Yi, Shuhua; McGuire, A. David; Harden, Jennifer; Kasischke, Eric; Manies, Kristen L.; Hinzman, Larry; Liljedahl, Anna K.; Randerson, J.; Liu, Heping; Romanovsky, Vladimir E.; Marchenko, Sergey S.; Kim, Yongwon Length frequency, condition, growth, and catch per effort indices for common North American fishes: chapter 15
One of the greatest advantages to using standard sampling is the ability of compare sample data to those data collected from an array of other populations over a wide geographic area using similar techniques. A biologist can then ascertain if the sampling data are within an expected range or are higher or lower than expected when compared to other...
Bonar, Scott A.; Hubert, Wayne A.; Willis, David W.; Brouder, Mark J.; Ilses, Alison C.; Bonar, Scott A. Lessons and insights from evolution, taxonomy, and conservation genetics
No abstract available.
Culver, Melanie 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...
Diefenbach, Duane R.; Christensen, Sonja Multifunctional grass farming: Science and policy considerations
No abstract available.
Franzluebbers, Alan J.; Boody, George; Gowda, Prasanna H.; Westra, John; van Schaik, Caroline; Welle, Patrick; Vondracek, Bruce C.; Johnson, Dennis Standardizing electrofishing power for boat electrofishing: chapter 14
Standardization of electrofishing can help reduced the variability of survey data and potentially reduce injur of fish. Without standardization, differences among collections can be partially attributed to disparities in electrofishing methodology, intensity of the electrical field, and size of the electrical field rather than to disparities in...
Bonar, Scott A.; Hubert, Wayne A.; Willis, David W.; Miranda, L.E. (Steve) Threats to Paddlefish habitat: Implications for conservation
No abstract available.
Gerken, Joseph E.; Paukert, Craig P. Tracking the Commonwealth’s moose: GPS technology and the Massachusetts moose research project
No abstract available.
DeStefano, Stephen; Wattles, David W.Social Media
Locations
Cooperative Research Units Program Headquarters
Phone: (703) 648 - 4260
Fax: (703) 648 - 4269