Daly, Gregory Pattengell, 1949-2009-05-212009-05-211981-03Daly, G. P. (1981). Competitive interactions among three crab species in the intertidal zone. Thesis (Ph. D.) -- University of Oregon.https://hdl.handle.net/1794/9234xi, 153 leaves : ill. Typescript. (Another copy on microfilm is located in Archives) Thesis (PhD.) -- University of Oregon Includes vita and abstract Bibliography: leaves 145-153 University of Oregon theses, Dept. of Biology, Ph.D., 1981en-USCrabsCompetition (Biology)Cancer productusPurple shore crabYellow shore crabThesis