Emphasizes specific aspects of ecology based on specialties of faculty. One or more courses are offered most semesters. Topics have included dynamics of mountain ecosystems, tundra ecology, ethnoecology, population dynamics, tropical and insular biology, ecology of fishes, quantitative plant ecology, and arctic and alpine environments. May use animals and/or animal tissues. May be repeated twice provided the topics vary. Prereqs., EBIO 1210, 1220, 1230, 1240, and EBIO 2040 or 2640, or EPOB 2050 and 2060. Same as EBIO 5100.