Biol 173. Environmental Biology. (Cross-listed with Env S). (3-0) Cr. 3. F.S. An introduction to the structure and function of natural systems at scales from the individual to the biosphere and the complex interactions between humans and their environment. Discussions of human population growth, biodiversity, sustainability, resource use, and pollution. Non-majors only. Only one of Biol 101, 173 or 211 may count toward graduation.

Biol 381. Environmental Systems. (Dual-listed with 581). (Cross-listed with Env S, EnSci, Micro). (2-4) Cr. 4. F. Prereq: Soc 130, 134 or 3 credits of Env S. (Dual-listed with EEOB 581) Dynamics of natural environmental systems. Systems approach to the analysis of material and energy flows and to understanding major physical, chemical, and biological processes in environmental systems. Laboratory emphasizes mass balance analysis and environmental simulation modeling. Nonmajor graduate credit.

Biol 472. Community Ecology. (2-2) Cr. 3. S. Prereq: Biol 312. The effect of interspecific interactions on the structure and dynamics of natural and managed communities; including concepts of guild structure and trophic web dynamics and their importance to the productivity, diversity, stability, and sustainability of communities. The implications of interspecifc interactions in the management of wild species will be emphasized with illustrative case histories of interactions between plants, invertebrates, and vertebrates. Nonmajor graduate credit.

Biol 483. Environmental Biogeochemistry. (Cross-listed with EnSci, Geol). (3-2) Cr. 4. S. Prereq: EnSci 381 and 402 or 402I. Dual-listed with EEOB 583. Biological, chemical, and physical phenomena controlling material, energy, and elemental fluxes in the environment. Interactions of life with and effects on envioronmental systems. Nonmajor graduate credit.