Environmental Studies Program
Office: Dana 178
Phone: x. 5213 (off campus: 518-580-5213)
- Ph.D. 2004. University of Georgia, Institute of Ecology, Athens, Georgia. Dissertation: Alterations in ecosystem processes as a result of anthropogenic modifications to streams and their catchments.
- M.S. 1999. University of Georgia, Warnell School of Forest Resources, Athens, Georgia. Title: Predatory impact of benthic species in a southern Appalachian stream.
- B.S. 1995. Duke University, Biology, Durham, North Carolina.
I explore how environmental perturbations control and influence ecosystems. I focus on aquatic systems, and incorporate concepts and methodologies from geology, hydrology, chemistry, biology, ecology, landscape science to examine how changes in land-use, stream hydrology, geomorphology, and pollutants affect ecosystem functioning. I diagnose ecosystem functioning using a variety of metrics, including nutrient cycling dynamics, respiration, algal production, decomposition, community composition, and the transfer of energy within food webs. I teach the foundational environmental science courses for the environmental science and environmental social and cultural perspectives tracks of the Environmental Studies major at Skidmore, as well as upper-level courses focusing on restoration science and urban ecology and the senior capstone course in Environmental Studies. Students perform inquiry-based research in all my courses, and we link this work to needs identified by local and regional stakeholders. My research collaborations with students in local systems (Upper Hudson and Catskill Mountain watersheds) have produced co-authored publications and presentations at international research conferences (see below). I am the primary investigator of a successful research grant from the National Science Foundation to create SAIL - an interdisciplinary analytics laboratory at Skidmore to study the links between structure and function (http://www.skidmore.edu/sail/).
* denotes undergraduate author
Gibson, CA, CM O'Reilly, AL Conine*, SM Lipshutz*. Nutrient uptake dynamics across a gradient of nutrient concentrations and ratios at the landscape scale. In review.
Gibson CA, CM O’Reilly, A Conine*, L Jefferies*, W. Jobs, and S. Belli. Organic matter carbon, nitrogen and phosphorous from a single persulfate digestion. In Review.
Richardson DC, IA Oleksy*, TJ Hoellein, DB Arscott, CA Gibson, SM Root*. 2014. Abundance of a nuisance, mat-forming diatom (Didymosphenia geminate) and effects on macroinvertebrate communities across Catskill Mountain streams, New York. Aquatic Sciences (in press)
Gibson CA and CM O’Reilly. 2012. Organic matter stoichiometry influences nitrogen and phosphorus uptake in a headwater stream. Freshwater Science 31: 395-407.
Wenger, SW, AH Roy, CR Jackson, ES Bernhardt, TL Carter, S Filoso, CA Gibson, WC Hession, SS Kaushal, E Marti, JL Meyer, MA Palmer, MJ Paul, AH Purcell, A Ramirez, AD Rosemond, KA Schofield, EB Sudduth, CJ Walsh. 2009. Twenty-six key research questions in urban stream ecology: an assessment of the state of the science. Journal of the North American Benthological Society 28: 1080-1098.
CA Gibson and JL Meyer. 2007. Nutrient uptake in a large urban river. Journal of the American Water Resources Association 43(3) 576-587.
CA Gibson, JL Meyer, NL Poff, LE Hay, and A Georgakakos. 2005. Flow regime alterations under changing climate in two river basins: Implications for freshwater ecosystems. River Research and Applications 21: 849-864.
CA Gibson, RE Ratajaczak, Jr., and GD Grossman. 2004. Patch based predation in a southern Appalachian stream. Oikos 106: 158-166.
CA Gibson and JL Meyer. 2003. Ammonium uptake in urban and forested headwater streams. In K.J. Hatcher (ed.) Proceedings of the 2003 Georgia Water Resources Conference
CA Gibson and JL Meyer. 2001. Ecosystem services in a regulated river: variability in nutrient uptake and net ecosystem metabolism in the Chattahoochee River. In K.J. Hatcher (ed.) Proceedings of the Georgia Water Resources Conference
$557,755. National Science Foundation, 2010. CA Gibson (Principal Investigator), D Domozych, K Frederick, H Hurst, J Ness (all from Skidmore College). From molecules to ecosystems: Establishment of the Skidmore Analytical Interdisciplinary Laboratory (SAIL).
$19,840. New York State Water Resources Institute, 2010. D Richardson (SUNY New Paltz), T Hoellein (Baruch College, CUNY), D Arscott (Stroud Water Research Center), CA Gibson (Skidmore College). Rock snot in sick rivers, What are the environmental drivers controlling blooms of invasive diatom (Didymosphenia geminata) in Northeastern and Mid-Atlantic United States?
$5,000. Ashokan Watershed Stream Management Program, 2010. D Richardson (SUNY New Paltz), T Hoellein (Baruch College, CUNY), D Arscott (Stroud Water Research Center), CA Gibson (Skidmore College). What are the environmental drivers controlling blooms of the invasive diatom (Didymospehnia geminata) in the Northeastern and Mid-Atlantic United States?
$40,000. LI-COR Environmental Education Fund, LI-COR Biosciences, 2009. CA Gibson and JH Ness (Skidmore College). Funding to increase student access to innovative instrumentation in courses across the Environmental Studies science curriculum.
Presentations (past 5 years)
* denotes undergraduate co-author
CA Gibson, CM O’Reilly, A Conine*. 2014. Variation in the C:N:P of epilithic biofilms in Catskill, NY headwater streams. Joint Aquatic Science Meeting, Portland, OR.
CA Gibson. 2014. Student analysis of streamflow trends in Northeast, United States. Joint Aquatic Science Meeting, Portland, OR.
CA Gibson, J Harfmann*, N Crossnohere*, CM O’Reilly. 2013. Shifts in organic matter stoichiometry and nutrient uptake in a forested headwater stream in autumn. Society for Freshwater Science, Annual Meeting, Jacksonville, FL.
MV Mahan, CA Gibson, and CM O’Reilly. 2013. The influence of leaf stoichiometry on nutrient uptake in microcosms. Society for Freshwater Science Annual Meeting, Jacksonville, FL.
CA Gibson, CM O’Reilly, A Conine*, S Lipshutz*. 2012. Relationship between nitrogen and phosphorus uptake in Catskill headwater streams. Society for Freshwater Science, Annual Meeting, Louisville, KY.
A Conine*, S Lipshutz*, CA Gibson, CM O’Reilly. 2012. Nutrient uptake in Catskills headwater streams. Society for Freshwater Science, Annual Meeting, Louisville, KY.
CA Gibson, CM Superak*, CM O’Reilly. 2011. Relative uptake of nitrogen and phosphorus in forested Adirondack streams. North American Benthological Society, Annual Meeting, Providence, RI.
CA Gibson. 2011. Didymosphenia geminata: An ecological mystery in Kayaderosseras Creek. Friends of the Kayaderosseras Annual Meeting, Invited Speaker.
Richardson, DC, LA Achterberg*, MR Redfield*, S Root*, DB Arscott, CA Gibson, TJ Hoellein. 2011. Rock snot in a sick river: Didymosphenia geminata (Didymo) blooms and water chemistry in Esopus Creek, Catskill Mountains, NY. North American Benthological Society, Annual Meeting, Providence, RI.
O’Reilly, CM, CA Gibson, E Hannigan*, L Miller*, M Rahmati*. 2010. Organic matter stoichiometry couples N and P dynamics in a headwater stream. American Society of Limnology and Oceanography, Annual Meeting, Santa Fe, NM.
CA Gibson, CM O’Reilly, M Ausanka-Crues*, M Dutoit*. 2009. Physical heterogeneity, organic matter quantity, and nutrient uptake in a forested headwater stream. North American Benthological Society, Annual Meeting, Grand Rapids, MI.
CM O’Reilly, CA Gibson, S Belli, M Dutoit*, M Ausanka-Crues*. 2009. Linking nitrogen and phosphorus uptake to organic matter quantity and quality in a forested headwater stream. North American Benthological Society, Annual Meeting, Grand Rapids, MI.
S Belli, CM O’Reilly, CA Gibson. 2009. C, N, and P from a simple-single vial persulfate digestion. North American Benthological Society, Annual Meeting, Grand Rapids, MI.
CA Gibson. 2009. Stream Ecosystem Functioning in Urban Landscapes, Department of Biology, Bard College, March, 2009.