Georgia Southern University Digital Commons@Georgia Southern Electronic Theses and Dissertations Graduate Studies, Jack N. Averitt College of Fall 2018 Foraging Ecology of a Winter Bird Community in Southeastern Georgia Rachel E. Mowbray Follow this and additional works at: https://digitalcommons.georgiasouthern.edu/etd Part of the Behavior and Ethology Commons, and the Population Biology Commons Recommended Citation Mowbray, Rachel E., "Foraging Ecology of a Winter Bird Community in Southeastern Georgia" (2018). Electronic Theses and Dissertations. 1861. https://digitalcommons.georgiasouthern.edu/etd/1861 This thesis (open access) is brought to you for free and open access by the Graduate Studies, Jack N. Averitt College of at Digital Commons@Georgia Southern. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of Digital Commons@Georgia Southern. For more information, please contact
[email protected]. FORAGING ECOLOGY OF A WINTER BIRD COMMUNITY IN SOUTHEASTERN GEORGIA by RACHEL MOWBRAY (Under the Direction of C. Ray Chandler) ABSTRACT Classical views on community structure emphasized deterministic processes and the importance of competition in shaping communities. However, the processes responsible for shaping avian communities remain controversial. Attempts to understand distributions and abundances of species are complicated by the fact that birds are highly mobile. Many species migrate biannually between summer breeding grounds and wintering grounds. The goal of this study was to test four hypotheses that attempt to explain how migratory species integrate into resident assemblages of birds (Empty-Niche Hypothesis, Competitive-Exclusion Hypothesis, Niche-Partitioning Hypothesis, and Generalist-Migrant Hypothesis). I collected data on birds foraging during the winter of 2017-2018 in Magnolia Springs State Park, Jenkins County, Georgia, U.S.A.