Andrewartha, H. G., and L. C. Birch. 1984. The Ecological Web. Chicago: The University of Chicago Press. An excellent overview of population dynamics and regulation.

Begon, M., and M. Mortimer. 1981. Population Ecology: A Unified Study of Animals and Plants. London: Blackwell Scientific Publications. A clear, well-illustrated basic text.

Boucher, D. H., ed. 1985. The Biology of Mutualism. New York: Oxford University Press. An anthology of articles about mutualism between species.

Gilpin, M. E., and M. E. Soule. 1986. "Minimum Viable Populations: Processes of Species Extinction," in M. E.

Soule, ed. Conservation Biology: The Science of Scarcity and Diversity. Sunderland, MA: Sinauer Associates. An important historical contribution to our understanding of population dynamics and the prospects for endangered species.

Pulliam, H. R. 1988. "Sources, Sinks, and Population Regulation," American Naturalist 132:757-785. An important contribution to the understanding of sources and sinks to the dynamics of small, isolated populations.

Shaffer, M. L. 1981. "Minimum Population Sizes for Species Conservation," BioScience 31:131-134. One of the first papers to discuss minimum population size necessary to maintain viability.