SIT Graduate Institute/SIT Study Abroad SIT Digital Collections Independent Study Project (ISP) Collection SIT Study Abroad Fall 2017 Hummingbird Foraging Preference: The Hierarchical Impacts of Color, Position, and Concentration on Visitation Frequency Erin O'Connor SIT Study Abroad Follow this and additional works at: https://digitalcollections.sit.edu/isp_collection Part of the Animal Sciences Commons, Biodiversity Commons, Biology Commons, Forest Sciences Commons, Latin American Studies Commons, and the Other Ecology and Evolutionary Biology Commons Recommended Citation O'Connor, Erin, "Hummingbird Foraging Preference: The ieH rarchical Impacts of Color, Position, and Concentration on Visitation Frequency" (2017). Independent Study Project (ISP) Collection. 2724. https://digitalcollections.sit.edu/isp_collection/2724 This Unpublished Paper is brought to you for free and open access by the SIT Study Abroad at SIT Digital Collections. It has been accepted for inclusion in Independent Study Project (ISP) Collection by an authorized administrator of SIT Digital Collections. For more information, please contact
[email protected]. Hummingbird Foraging Preference: The Hierarchical Impacts of Color, Position, and Concentration on Visitation Frequency O’Connor, Erin Academic Director: Silva, Xavier Ph.D. Project Advisor: Beck, Holger Colgate University Biology and Spanish South America, Ecuador, Chocó Cloud Forest, Santa Lucia Reserve Submitted in partial fulfillment for Ecuador Comparative Ecology and Conservation, SIT Study Abroad, Fall 2017 Hierarchical Impacts of Color, Position, and Concentration on Hummingbird Visitation Frequency Abstract Hummingbirds are well adapted to efficiently locate high quality nectar sources, but relatively few studies have examined the mechanisms of that process under natural conditions in the field. This study investigates the visual signals that allow hummingbirds to do just that, as well as the external factors that limit their choices in foraging.