Allen, T. F. H., R. V. O'Neill, and T. W. Hoekstra. 1984. Interlevel relations in ecological research and management: some working principles from hierarchy theory. General Technical Report RM-110, United States Department of Agriculture, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO.
APHA. 1985. Standard methods for the examination of water and wastewaters, 16th ed. American Public Health Association, Washington, DC.
Aquatic Ecosystem Objectives Committee. 1985. 1985 annual report. Great Lakes Science Advisory Board, International Joint Commission, Windsor, Ontario.
Bro-Rasmussen, F., and H. Lokke. 1984. Ecoepidemiology— a casuistic discipline describing ecological disturbances and damages in relation to their specific causes: exemplified by chlorinated phenols and chlorophenoxy acids.Regulatory Toxicology and Pharmacology 4:391–399.
Cairns, J., Jr. 1986. What is meant by validation of predictions based on laboratory toxicity tests?Hydrobiologia 137:271–278.
Cairns, J., Jr., and J. R. Pratt. 1986. On the relation between structural and functional analyses of ecosystems.Environmental Toxicology and Chemistry 5:785–786.
Diem, K., and C. Lentner (eds.). 1971. Pages 307–764in Documenta geigy: scientific tables. Ciba-Geigy Ltd., Basle, Switzerland.
Elton, C. S. 1958. The ecology of invasions by animals and plants. John Wiley and Sons, Inc., New York.
Herricks, E. E., and J. Cairns, Jr. 1983. Biological monitoring. Part III. Receiving system methodology based on community structure.Water Research 16:144–153.
Herricks, E. E., and L. L. Osborne. 1985. Water quality restoration and protection in streams and rivers. Pages 1–20in J. Gore (ed.), The restoration of rivers and streams. Butterworth Publishers, Stoneham, MA.
Herricks, E. E., and D. J. Schaeffer. 1987a. Selection of test systems for ecological analysis.Water Science and Technology 19(11):47–54.
Herricks, E. E., and D. J. Schaeffer. 1987b.Selection of Test Systems to Evaluate the Effects of Contaminants on Ecological Systems. Civil Engineering Studies. Environmental Engineering Series No. 17. University of Illinois, Urbana, IL.
Herricks, E. E., D. J. Schaeffer, and J. A. Perry. 1988. Biomonitoring: closing the loop in the environmental sciences.In S. Levin (ed.), Environmental Biology. Cornell University Press, Ithaca, NY, in press.
Hutton, M. 1982. The role of wildlife species in the assessment of biological impact from chronic exposure to persistent chemicals.Ecotoxicology and Environmental Safety 6:471–478.
Karr, J. R. 1981. Assessment of biotic integrity using fish communities.Fisheries 6(6):21–27.
Margalef, R. 1975. Human impact on transportation and diversity in ecosystems. How far is extrapolation valid? Pages 273–241in Proceedings of the first international congress of ecology: structure, functioning and management of ecosystems, The Hague 8–14, September 1974. Centre for Agricultural Publishing and Documentation, Wageningen, Netherlands.
May, R. M. 1977. Thresholds and breakpoints in ecosystems with a multiplicity of stable states.Nature 269:471–477.
Merck & Co. 1986. The Merck veterinary manual, 6th ed. Merck & Co., Norwood, NJ.
Novak, E. E., D. B. Porcella, K. M. Johnson, E. E. Herricks, and D. J. Schaeffer. 1985. Selection of test methods to assess ecological effects of mixed aerosols.Ecotoxicology and Environmental Safety 10:361–381.
O'Neill, R. V., D. L. DeAngelis, J. B. Waide, and T. F. H. Allen. 1986. A hierarchical concept of ecosystems. Princeton University Press, Princeton, NJ.
Ott, W. 1978. Environmental indices: theory and practice. Ann Arbor Science Publishers, Ann Arbor, MI.
Paine, R. T. 1980. Food webs: linkage, interaction strength and community infrastructure.Journal of Animal Ecology 49:667–685.
Perry, J. A., D. J. Schaeffer, and E. E. Herricks. 1987. Innovative designs for environmental monitoring: are we asking the questions before the data are collected? Pages 28–39in T. P. Boyle (ed.), New approaches to monitoring aquatic ecosystems. ASTM STP 940, American Society for Testing and Materials, Philadelphia, PA.
Rapport, D. J., H. A. Riegier, and T. C. Hutchinson. 1985. Ecosystem behavior under stress.American Naturalist 125:617–640.
Schaeffer, D. J., D. K. Cox, and R. A. Deem. 1987. Variability of test systems used to assess ecological effects of chemicals.Water Science and Technology 19(11):39–45.
Schaeffer, D. J., H. W. Kerster, J. A. Perry, and D. K. Cox. 1985. The environmental audit: I: concepts.Environmental Management 9:191–198.
Shelford, V. E. 1913. Animal communities in temperate America. University of Chicago Press, Chicago.
Sokolik, S. L., and D. J. Schaeffer. 1986. Environmental audit: III: improving the management of environmental information for toxic substances.Environmental Management 10:311–317.
Tansley, A. G. 1935. The use and abuse of vegetational concepts and terms.Ecology 16:284–307.
USEPA. 1986. Solicitation DL 86-003. Stream vulnerability and recovery research.Commerce Business Daily, 11 June 1986, p.2.
Westman, W. E. 1978. Measuring the inertia and resilience of ecosystems.BioScience 28:705–711.