Poster Presentation Society for Freshwater Science 2026 Annual Meeting

Bridging a knowledge gap between the social and the ecological in riverscape restoration on the Willamette River  (135826)

Alexis C Griffin 1 , Chris Jordan 2 , David Lytle 1 , Francis Chan 1
  1. Oregon State University, OR, United States
  2. NWFSC, NOAA, Newport, Oregon, United States

Billions of dollars are invested annually in the Pacific Northwest on riverscape restoration – millions in the Willamette River Basin alone. These projects are issued primarily to mitigate ecological degradation for Endangered Species Act listed salmonids. Salmonids are a culturally and economically important species.  Currently, restoration sites are chosen based on land ownership and efficient use of funding without considering the social values of the surrounding community. Correlations between human demographics and restoration site selections in the Willamette River Basin remain under-explored. My study utilized ArcGIS Pro to map and quantify current riverscape restoration worksites across the Willamette River Basin. By integrating spatial data with US Census demographic and socioeconomic layers, I assessed emerging patterns of project distribution relative to human community composition. Preliminary spatial analysis reveals an absence of riverscape restoration projects within urban boundaries, areas which typically house higher proportions of Black and Brown citizens. By quantifying these patterns, my research provides a critical social lens for valuing riverscape restoration for salmonids. The findings will aim to recommend management strategies that integrate a socio-ecological framework ensuring restoration efforts benefit salmonids without neglecting the importance of the riverscape to their human neighbors.  

  1. Dunham, J.B., Angermeier, P.L., Crausbay, S.D., Cravens, A.E., Gosnell, H., McEvoy, J., Moritz, M.A., Raheem, N., and Sanford, T. 2018. Rivers are social–ecological systems: Time to integrate human dimensions into riverscape ecology and management. WIREs Water 5(4): e1291. doi:10.1002/wat2.1291.
  2. King, B., and Fonner, R. 2024. Exploring restoration efforts from a social lens: statistical models reveal relationships between salmon habitat restoration efforts and ecological and social characteristics of the Puget Sound basin, USA. E&S 29(4): art14. doi:10.5751/ES-15272-290414.