Streams and Aquatic Life

Stream hydrology and aquatic research on the forests is largely conducted in and around Oak Creek. This stream is one of three major drainages on the McDonald Forests to the north and west of Corvallis and flows into the Mary’s River. The other two streams include Soap Creek and Jackson-Frazier Creeks. Hydrologic and aquatic research help inform land managers on best practices around water resource management and conservation to ensure protection of watersheds and of species relying on bodies of water for survival. The following links provide information on Dr. Catalina Segura’s Watershed Processes Laboratory and Dr. Kevin Bladon’s Forest Ecohydrology and Watershed Science Laboratory.

Current Projects


Cargill, S. K., Segura, C., Villamizar, S. R., and Warren, D. R. 2021. The influence of lithology on stream metabolism in headwater systems. Ecohydrology 14: e2284.

Heaston, E. D., Segura, C., and Warren, D. R. 2021. Do electrofishing activities disrupt stream biofilm standing stocks? An assessment from two headwater streams in Western Oregon. North American Journal of Fisheries Management 41: 466-473.

Falke, L. P., Henderson, J. S., Novak, M., and Preston, D. L. 2020. Temporal shifts in intraspecific and interspecific diet variation among 3 stream predators. Freshwater Science 39: 115-125.

Preston, D. L., Layden, T. J., Segui, L. M., Falke, L. P., Brant, S. V., and Novak, M. 2020. Trematode parasites exceed aquatic insect biomass in Oregon stream food webs. Journal of Animal Ecology 90: 766-775.

Cargill, S. A. 2019. The influence of lithology on stream metabolism in mountain systems. MS Thesis, OSU.

Preston, D. L., Henderson, J. S., Falke, L. P. Segui, L. M., Layden, T. J., and Noval, M. 2018. What drives interaction strengths in complex food webs? A test with feeding rates of a generalist stream predator. Ecology 99: 1591-1601.