Portland State University PDXScholar Dissertations and Theses Dissertations and Theses Summer 8-10-2017 Anthropogenic Effects on the Fouling Community: Impacts of Biological Invasions and Anthropogenic Structures on Community Structure Whitney Elizabeth McClees Portland State University Follow this and additional works at: https://pdxscholar.library.pdx.edu/open_access_etds Part of the Environmental Sciences Commons, and the Marine Biology Commons Let us know how access to this document benefits ou.y Recommended Citation McClees, Whitney Elizabeth, "Anthropogenic Effects on the Fouling Community: Impacts of Biological Invasions and Anthropogenic Structures on Community Structure" (2017). Dissertations and Theses. Paper 3883. https://doi.org/10.15760/etd.5771 This Thesis is brought to you for free and open access. It has been accepted for inclusion in Dissertations and Theses by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible:
[email protected]. Anthropogenic Effects on the Fouling Community: Impacts of Biological Invasions and Anthropogenic Structures on Community Structure by Whitney Elizabeth McClees A thesis submitted in partial fulfillment of the requirements of the degree of Master of Science in Environmental Science and Management Thesis Committee: Catherine de Rivera, Chair Sarah Eppley Gregory Ruiz Portland State University 2017 © 2017 Whitney Elizabeth McClees Abstract Coastal anthropogenic infrastructure has significantly modified nearshore environments. Because these structures often have a strong association with shipping as would be found in ports and harbors, they have been identified as invasion hotspots. Due to propagule pressure from shipping and recreational boating and suitable uncolonized substrate that provides a refuge from native predators, a greater number of non-native species have been found on these structures compared to nearby natural substrate.