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because it protects rare species from extinction, but it also protects the ecosystems that serve as habitat for these species and assures a better environment for man. REFERENCES Barkley, P.W., and D.W. Seckler. 1972. Economic growth and environmental decay: the solution becomes a problem. Harcourt, Brace, Jovanovich, Inc., New York. 193 pp. Behnke, R.J. 1968. Rare and endangered species: the native trouts of western North America. Proc. Annu. Conf. West. Assoc. Game and Fish Comm. 48:530-533. Behnke, R.J. 1972. The rationale of preserving genetic diversity: examples of the utilization of intra-specific races of salmonid fishes in fisher- ies management. Proc. Annu. Conf. West. Assoc. State Game Fish. Comm. 52:559-561. Behnke, R.J., and M. Zarn. 1976. Biology and management of threatened and endangered western trouts. U.S. For. Serv., Gen. Tech. Rep. RM-28. 45 pp. Benson, N.G., editor. 1970. A century of fisheries in North America. Am. Fish. Soc., Spec. Publ. No. 7. 330 pp. Cairns, J., Jr. 1975. Critical species, including man, within the bio- sphere. Naturwissenschaften 62:193-199. Carter, W.M. 1973. The Atlantic salmon -- a case of man's indifference to his resource blessings. Pages 31-35 in P.A. Douglas, ed. United nations for biosurvival: an international symposium, National Wildlife Federa- tion, Washington, D.C. Cutler, M.R. 1974. New role for government information and education per- sonnel. Trans. N. Am. Wildl. Nat. Resour. Conf. 39:397-405. Duffey, E. 1974. Nature reserves and wildlife. Heinemann Educational Books, Ltd., Toronto. 134 pp. Evenden, F.G. 1976. Is professionalism going out of style? U.S. Fish Wildl. Serv. News, Washington, D.C. Feb. 1976:3-4. Fisher, J., N. Simon, and J. Vincent. 1969. Wildlife in danger. Viking Press, New York. 368 pp. Gilbert, D.L. 1971. The sociology of public relations. Pages 83-96 in D.L. Gilbert. Natural resources and public relations. The Wildlife Society, Washington, D.C. 11