Colden V. Baxter

Associate Professor
Department of Biology
Idaho State University

 

Email: baxtcold@isu.edu
Phone: (208) 251-5980
Curriculum Vitae

 

Research conducted in the Stream Ecology Center focuses on rivers and streams, but more generally on the ecological linkages between water and land. Reciprocal connections such as those between streams, floodplains, and riparian forests are critical to watershed ecosystems, and they couple land and water in their vulnerability to the agents of global environmental change. Research led by Dr. Baxter is aimed at improving our understanding of the basic nature of such connections and the consequences of their disruption by human activities, but also contributing to better-informed conservation and stewardship. Examples of current research include 1) studies of the direct and indirect effects of nonnative species invasions, habitat degradation, and the loss of Pacific salmon on reciprocal linkages between stream and riparian forest food webs, 2) investigations of the effects of human land use, flow regulation, and changing climate on large river-riparian ecosystems of the western U.S. (work focused in the Columbia and Colorado basins), 3) studies of groundwater-stream water interactions, including human impacts on this connectivity and potential for floodplain restoration efforts in the Columbia Basin, and 4) research into the effects of wildfire on linked aquatic-terrestrial ecosystems in watersheds of the northern Rocky Mountains.

Recent Publications

Bellmore, J.R., C.V. Baxter, and P.J. Connolly. 2014. Spatial complexity reduces interaction strengths in the meta-food web of a river floodplain mosaic. Ecology (In press).

Collins, S. F. and C.V. Baxter. 2014. Heterogeneity of riparian habitats mediates responses of terrestrial arthropods to a subsidy of Pacific salmon carcasses. Ecosphere (In press).

Zahn Seegert, S.E., E.J. Rosi-Marshall, C.V. Baxter, T.A. Kennedy, R.O. Hall, Jr., and W.F. Cross. 2014. High diet overlap between native small-bodied fishes and non-native Fathead Minnow in the Colorado River, Grand Canyon, Arizona. Transactions of the American Fisheries Society 143:1072-1083.

Marcarelli, A.M., C.V. Baxter and M.S. Wipfli. 2014. Nutrient additions to mitigate for loss of Pacific salmon: consequences for stream biofilm and nutrient dynamics. Ecosphere 5(6):69. http://dx.doi.org/10.1890/ES13-00366.1.

Bellmore, J. R. and C.V. Baxter. 2014. Effects of geomorphic process domains on the structure and function of aquatic ecosystems: a comparison of floodplain and confined river segments. River Research and Applications 30: 617–630.

Benjamin, J.R., F. Lepori, C.V. Baxter, and K.D. Fausch. 2013. Can replacement of native by non-native trout alter stream-riparian food webs? Freshwater Biology 58:1694–1709.

Cross, W. F., C. V. Baxter, E. J. Rosi-Marshall, R. O. Hall, Jr., T. A. Kennedy, K. C. Donner, S.E.Z. Seegert, H. A. W. Kelly, M.D. Yard, and K.E. Behn. 2013. Foodweb dynamics in a large river discontinuum. Ecological Monographs 83:311-337.

Davis, J M., C.V. Baxter, B.T. Crosby, J.L. Pierce, E. J. Rosi-Marshall. 2013. Anticipating stream ecosystem responses to climate change: toward predictions that incorporate effects via land-water linkages. Ecosystems 16: 909–922.

Bellmore, J.R., C.V. Baxter, P.J. Connolly, and K. Martens. 2013. The floodplain food web mosaic: a study of its importance to Pacific salmon and steelhead with implications for their restoration. Ecological Applications 23:189–207.

Lepori, F., J.R. Benjamin, K.D. Fausch, and C.V. Baxter. 2012. Are invasive and native trout functionally-equivalent predators? Results and lessons from a field experiment. Aquatic Conservation: Marine and Freshwater Ecosystems 22: 787–798.

Mineau, M.M., C.V. Baxter, A.M. Marcarelli, G.W. Minshall. 2012. An invasive riparian tree reduces stream ecosystem efficiency via a recalcitrant organic matter subsidy. Ecology 93:1501–1508.

Bellmore, J. R., C.V. Baxter, A. Ray, L. Denny, E. Galloway, K. Tardy. 2012. Assessing the potential for salmon recovery via floodplain restoration: A multitrophic level comparison of dredge-mined to reference segments. Environmental Management 49:734-750.

Benjamin, J.R. and C.V. Baxter. 2012. Is a trout a trout? A range-wide comparison shows nonnative brook trout exhibit greater density, biomass, and production than native inland cutthroat trout. Biological Invasions 14:1865–1879.

Benjamin, J.R. K.D. Fausch, and C.V. Baxter. 2011. Species replacement by a nonnative salmonid alters ecosystem function by reducing prey subsidies that support riparian spiders. Oecologia 167(2):503-12.

Marcarelli A.M., Baxter C.V., Mineau M.M., and Hall R.O. 2011. Quantity and quality: unifying food web and ecosystem perspectives on the role of resource subsidies in freshwaters. Ecology 92: 1215-1225. DOI 10.1890/10-2240.1

Lance, M.J. and C.V. Baxter. 2011. Abundance, production, and tissue composition of mountain whitefish (Prosopium williamsoni) in a central Idaho wilderness stream. Northwest Science 85(3):445-454.

Torgersen, C.E., C.V. Baxter, J.L. Ebersole, and R.E. Gresswell. 2011. Incorporating spatial context into the analysis of salmon-habitat relationships. Gravel-bed Rivers: Processes, Tools, Environments, First Edition. Edited by Michael Church, Pascale M. Biron and Andre΄ Roy.

Cross, W.F., C.V. Baxter, K.C. Donner, E.J. Rosi-Marshall, T.A. Kennedy, R.O. Hall, Jr., H.W. Kelly, and R.S. Rogers. 2011. Ecosystem ecology meets adaptive management: food web response to a controlled flood on the Colorado River, Glen Canyon. Ecological Applications 21(6):2016–2033.

Mineau, M.M., C.V. Baxter, A.M. Marcarelli. 2011. A non-native riparian tree (Elaeagnus angustifolia) changes nutrient dynamics in streams. Ecosystems 14: 353-365.

Yard, M.D., L.G. Coggins, C.V. Baxter, G.E. Bennett, and J.T. Korman. 2011. Trout piscivory in the Colorado River, Grand Canyon: Effects of turbidity, temperature, and fish prey availability. Transactions of the American Fisheries Society 140:471–486.

Marcarelli, A.M., R.W. Van Kirk and C.V. Baxter. 2010. Predicting effects of hydrologic alteration and climate change on ecosystem metabolism in a western U.S. river. Ecological Applications 20(8):2081–2088.

Malison, R.L. and C.V. Baxter. 2010. The “fire pulse:” wildfire stimulates flux of aquatic prey to terrestrial habitats driving increases in riparian consumers. Canadian Journal of Fisheries and Aquatic Sciences 67(3):570-579.

Malison, R.L., J. Benjamin, and and C.V. Baxter. 2010. Measuring adult insect emergence from streams: the influence of trap placement and a comparison with benthic sampling. Journal of North American Benthological Society 29(2):647–656.

Malison, R.L. and C.V. Baxter. 2010. Effects of wildfire of varying severity on benthic stream insect assemblages and emergence. Journal of North American Benthological Society 29:647-656.

Wipfli, M.S. and C.V. Baxter. 2010. Linking ecosystems, food webs, and fish production: Subsidies in salmonid watersheds. Fisheries 35:373-387.

Benjamin, J.R. and C.V. Baxter. 2010. Do nonnative salmonines exhibit greater density and production than the natives they replace? A comparison of nonnative brook trout to native cutthroat trout. Transactions of the American Fisheries Society 139:641-651.

Fausch, K.D., C.V. Baxter, and M. Murakami. 2010. Multiple stressors in north temperate streams: lessons from linked forest-stream ecosystems in northern Japan. Freshwater Biology 55: 12-134.