C. Andrew DolloffTeam Leader, Research Fishery Biologist
Blacksburg, VA 24060-6349
Current ResearchClimate change: characterization and prediction of water temperature in headwater streams Effect of climate change on transition of aquatic communities from cold-, cool-, and warmwater habitats Influence of disturbances [floods, debris flows, transportation networks, water temperature] on aquatic organismsAmerican eel freshwater distribution, age & growth, and habitat use Influence of frequent prescribed fire on large wood in Atlantic coastal plain streams and aquatic communities Effect of dam and reservoir operation on riverine communities
Research InterestsTrout and coldwater fish production ecologyEcology and management of large wood in streamEffectiveness of forestry Best Management Practices
Influence of natural [hurricanes, ice storms, microbursts, landslides and debris flows] and human-related [acid precipitation, road/stream crossings, increased temperature, water-based recreation, forest harvest] disturbance on brook trout and coldwater stream ecology
Past ResearchEffects of removal/addition of large wood in streams on coldwater fishes and their habitats (Alaska and Virginia)Winter habitat use by juvenile coho salmon and Dolly Varden (Alaska)Basinwide estimation of habitat and fish populations (Alaska, Virginia, North Carolina, Tennessee, Georgia)Use of surrogate species to evaluate the impact of habitat disturbance on threatened, endangered or sensitive benthic riffle fishesManipulation of streamside management zone width and harvest intensity for water quality (Virginia, West Virginia)Loss of Eastern hemlock from riparian areas in the Eastern US
Alternative methods for assessing fish distribution and abundance [benthic riffle fishes, underwater observation, scale dependent sampling protocols, sample extrapolation]
Why This Research is Important
The aquatic fauna of the southeastern US is among the most diverse worldwide, with many dozens of endemic species spread across 13 southeastern states. Many of these species, such as the eastern Brook trout are highly prized both for their sport and asthetc value but are under increasing pressure from land use and climate change. Particularly in coldwater streams, the composition and character of aquatic communities are among the most compelling indicators of ecosystem heath and vitality. The response of aquatic organisms to changes in water quality and their habitats can be directly linked to disturbances and land use changes, and knowledge of the role of disturbance in structuring aquatic communities will enable managers to implement protective measures and enhancements.
Ph.D. in Fisheries and Wildlife, 1983
Montana State University
M.S. in Zoology, 1979
North Carolina State University
B.S. in Wildlife Management, 1975
University of Maine
- Team Leader and Supervisory Fisheries Research Biologist , USDA Forest Service Southern Research Station, Blacksburg, Virginia
- Project Leader and Supervisory Fisheries Research Biologist , USDA Forest Service Southern Research Station, Blacksburg, Virginia
- Fisheries Research Biologist , USDA Forest Service Southeastern Forest Experiment Station, Blacksburg, Virginia.
- Post Doctoral Fishery Scientist, USDA Forest Service Pacific Northwest Forest Experiment Station, Forestry Sciences Laboratory, Juneau, Alaska and Montana State University, Bozeman, MT
- Sigma Xi, The Scientific Research Society, Member (1981—Current)
- American Institute Of Fishery Research Biologists, Member (1979—Current)
- American Fisheries Society, Lifetime Member (1978—Current)
- Xi Sigma Pi, Member (1973—Current)
- The Wildlife Society, Member (1972—2006)
Awards and Recognition
- Award for Professional Excellence, 2009
- University of Maine Department of Wildlife Ecology
- USDA-Forest Service Rise to the Future Award, 2004
- Mentorship Award
- Federal Laboratory Consortium for Technology Transfer, 2000
- Recognizes the technology transfer efforts of C.A. Dolloff USDA Forest Service, SRS, Center for Aquatic Technology Transfer, for efforts in scientifically-based management of aquatic habitat and resources on forested lands.
- USDA Forest Service Rise to the Future, 1999
- For Collaborative Aquatic Resource Stewardship (presented to the Center for Aquatic Technology Transfer (CATT)).
- USDA-Forest Service Eastern Region Award, 1999
- Award for Riparian Management
- USDA-Forest Service Rise to the Future Award, 1991
- For outstanding efforts in support of the program for aquatic habitat improvement.
- USDA Unit Award for Superior Service, 1989
- For outstanding achievement in providing new information and creative methodologies to protect and enhance fish habitat on forest and range lands
- USDA-Forest Service Research Award, 1988
- For Excellence in Technology Transfer
Featured Publications and Products
- McManamay, R. , A..; Orth, D., J..; Dolloff, C., A..; Frimpong, E., A. 2011. Regional frameworks applied to hydrology: can landscape-based frameworks capture the hydrologic variability?.
- Evans, Daniel , M..; Aust, Michael , W..; Dolloff, C. , A..; Templeton, Ben , S..; Peterson, John , A. 2011. Eastern hemlock decline in riparian areas from Maine to Alabama.
- McManamay, Ryan , A..; Webster, Jackson , R..; Valett, H. , M..; Dolloff, C. , A. 2011. Does diet influence consumer nutrient cycling? Macroinvertebrate and fish excretion in streams.
- Lakel, William , A..; Aust, Wallace , M..; Aust, M.; Bolding, Chad; Dolloff, C. , A..; Keyser, Patrick; Feldt, Robert. 2010. Sediment trapping by streamside management zones of various widths after forest harvest and site preparation.
- Kozarek, J., L..; Hession, W., C..; ASCE, M.; Dolloff, C., A..; Diplas, P. 2010. Hydraulic complexity metrics for evaluating in-stream brook trout habitat.
- Warrington, Brooke M.; Aust, W. Michael; Barrett, Scott M.; Ford, W. Mark; Bolding, M. Chad; Dolloff, Andy. 2016. Potential effects of forestry operations and associated best management practices on riparian wildlife species in the southeastern United States.
- Li, H.; Deng, X.; Dolloff, Andy; Smith, E. P. 2015. Bivariate functional data clustering: grouping streams based on a varying coefficient model of the stream water and air temperature relationship.
- McDonnell, T. C.; Sloat, M. R.; Sullivan, T. J.; Dolloff, C. A.; Hessburg, P. F.; Povak, N. A.; Jackson, W. A; Sams, C. 2015. Downstream Warming and Headwater Acidity May Diminish Coldwater Habitat in Southern Appalachian Mountain Streams.
- Timm, Anne; Hallerman, Eric; Dolloff, Andy; Hudy, Mark; Kolka, Randall. 2015. Identification of a barrier height threshold where brook trout population genetic diversity, differentiation, and relatedness are affected.
- McManamay, Ryan, A..; Orth, Donald J.; Dolloff, Charles A.; Mathews, David C. 2015. Isolating causal pathways between flow and fish in the regulated river hierarchy.
- Adams, Susan B.; Roghair, Craig; Krause, Colin; Warren, Mel; Cochran, J. Allison; Dolloff, Andy; Moran, John; McGregor, Stuart W.; Schuester, Guenter A.; Gangloff, Michael; DeVries, Dennis R.; Kendrick, Michael R.; Grove, G. Lee; Wright, Russell A. 2015. New crayfish species records from the Sipsey Fork drainage, including Lewis Smith Reservoir (Alabama, USA): Native or introduced species?.
- Lakel, William A., III.; Aust, Wallace, M..; Dolloff, C. Andrew; Keyser, Patrick D. 2015. Residual timber values within Piedmont streamside management zones of different widths and harvest levels.
- Myers, Bonnie. J.E.; Dolloff, C. Andrew; Rypel, Andrew L. 2014. Rainbow trout versus brook trout biomass and production under varied climate regimes in small southern Appalachian streams.
- Trumbo, Bradly A.; Nislow, Keith H.; Stallings, Jonathan; Hudy, Mark; Smith, Eric P.; Kim, Dong-Yun; Wiggins, Bruce; Dolloff, Charles A. 2014. Ranking site vulnerability to increasing temperatures in southern Appalachian brook trout streams in Virginia: An exposure-sensitivity approach.
- Brown, Kristopher, R..; McGuire, Kevin J.; Aust, W. Michael; Hession, W. Cully; Dolloff, C. Andrew. 2014. The effect of increasing gravel cover on forest roads for reduced sediment delivery to stream crossings.
- McManamay, Ryan A.; Orth, Donald J.; Dolloff, Charles A.; Mathews, David C. 2013. Application of the ELOHA framework to regulated rivers in the upper Tennessee River Basin: A case study.
- Wear, Laura R.; Aust, Michael W.; Bolding, M. Chad; Strahm, Brian D.; Dolloff, C. Andrew. 2013. Effectiveness of best management practices for sediment reduction at operation forest stream crossings.
- Carroll, Matthew B.; Aust, W. Michael; Dolloff, C. Andrew; Shaffer, Robert M. 2013. Evaluation of road approaches to four different types of stream crossings in the Virginia Piedmont.
- McManamay, Ryan A.; Orth, Donald J.; Dolloff, A. Charles. 2013. Macroinvertebrate Community responses to gravel addition in a Southeastern regulated river.
- McManamay, Ryan A.; Orth, Donald J.; Dolloff, Charles A.; Firmpong, Emmaneul A. 2012. A regional classification of unregulated stream flows: spatial resolution and hierarchical frameworks.
- McManamay, Ryan A.; Orth, Donald J.; Dolloff, Charles A. 2012. Revisiting the homogenization of dammed rivers in the southeastern US.
- Aust, Wallace M.; Carroll, Matthew B.; Bolding, M. Chad; Dolloff, Andy. 2011. Operational forest stream crossings effects on water quality in the Virginia Piedmont.
- McManamay, Ryan , A..; Orth, D., J..; Dolloff, Charles , A..; Cantrell, Mark, A. 2010. Gravel addition as a habitat restoration technique for tailwaters.
- Dunham, Jason B.; Rosenberger, Amanda E.; Thurow, Russell F.; Dolloff, C. Andrew; Howell, Philip J. 2009. Coldwater fish in wadeable streams [Chapter 8].
- Hilderbrand, Robert H.; Lemly, A. Dennis; Dolloff, C. Andrew. 1999. Habitat sequencing and the importance of discharge in inferences.