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<br />, <br /> <br />generations in captivity. These genetic adaptations are <br />deleterious when captive populations are reintroduced <br />into the wild. Minimizing genetic adaptation to captivity <br />can be done by minimizing generations in captivity, as is <br />being done by seed storage or cryopreservation in plants, <br />but is not feasible for most animal species. Genetic adaptation <br />can be minimized using equalization of family sizes, but <br />empirical tests indicate little benefit when populations <br />were translocated to the wild. The deleterious consequences <br />of genetic adaptation to captivity on wild fitness can be <br />reduced by fragmentation of captive population (with <br />occasional crossing to keep inbreeding to acceptable levels) <br />and by crossing replicate captive populations. <br /> <br />Acknowledgements <br /> <br />I thank the organizers for financial support that enabled me to <br />attend the symposium at the University of California, Los Angeles, <br />and three reviewers for helpful comments. <br /> <br />References <br /> <br />Allard RW (1988) Genetic changes associated with the evolution of <br />adaptedness in cultivated plants and their wild progenitors. <br />Journal of Heredity, 79, 225-238. <br />Allendorf FW (1993) Delay of adaptation to captive breeding by <br />equalizing family size. Conservation Biology, 7,416-419. <br />Allendorf FW, Luikart G (2006) Conservation and the Genetics of <br />Populations. Blackwell, Malden, Massachusetts. <br />Anderson D (1991) Emerging virus threat. Nature, 351, 89. <br />Anonymous (2006) AZA & CBSG: training keepers to help <br />amphibians, CBSG News, 17 (2), 7. <br />Araki H, Arden WR, Olsen EM, Cooper B, Blouin MS (2007) <br />Reproductive success of captive-bred steelhead trout in the <br />wild: evaluation of three hatchery programs in the Hood River. <br />Conservation Biology, 21, 181-190. <br />Ayala FJ (1965a) Evolution of fitness of experimental populations <br />of Drosophila serrata. Science, 150, 903-905. <br />Ayala FJ (1965b) Relative fitness of populations of Drosophila serrata <br />and Drosophila birchii. Genetics, 51, 527-544. <br />Ballou JD (1993) Assessing the risks of infectious diseases in <br />captive breeding and reintroduction programs. Journal of Zoo <br />and Wildlife Medicine, 24, 327-335. <br />Ballou J, Lacy RC (1995) Identifying genetically important individuals <br />for management of genetic diversity in pedigreed populations. <br />In: Population Management for Survival and Recovery: Analytical <br />Methods and Strategies in Small Population Conservation (eds <br />Ballou J, Gilpin M, Foose T), pp. 76-111, Columbia University <br />Press, New York. <br />Beck BB, Rapaport LG, Stanley Price MR, Wilson AC (1994) <br />Reintroduction of captive-born animals. In: Creative Conservation: <br />Interactive Management of Wild and Captive Animnls (eds Olney PJS, <br />Mace GM, Feistner A TC), pp. 265-286, Chapman & Hall, London. <br />Borlase SC, Loebel DA, Frankham R et al. (1993) Modeling problems <br />in conservation genetics using captive Drosophila populations: <br />consequences of equalization of family sizes. Conservation <br />Biology, 7, 122-131. <br />Bush GL (1978) Planning a rational quality control program for the <br />screwworm fly. In: The Screwwonn Problem (ed. Richardson RH), <br />pp. 37-84. University of Texas Press, Austin, Texas, <br /> <br />@ 2007 The Author <br />Journal compilation @ 2007 Blackwell Publishing Ltd <br /> <br />GENETIC ADAPTATION TO CAPTIVITY 7 <br /> <br />Bush GL, Neck RW, Kitto GB (1976) Screwworm eradication: inad- <br />vertant selection for noncompetitive ecotypes during mass <br />rearing. Science, 193, 491-493. <br />Center for Plant Conservation (2006) http://www.centerforplant <br />conservation.org. <br />Charlesworth B, Hughes KA (2000) The maintenance of genetic <br />variation in life-history traits. In: Evolutionary Genetics from <br />Molecules to Morphology (eds Singh RS, Krimbas C), pp. 369-392. <br />Cambridge University Press, Cambridge, UK. <br />Chilcote MW (2003) Relationship between natural productivity <br />and the frequency of wild fish in mixed spawning populations <br />of wild and hatchery steelhead (Oncorhynchus mykiss). Canadian <br />Journal of Fisheries and Aquatic Sciences, 60, 1057-1067. <br />Chilcote MW, Leider SA, Loch JJ (1986) Differential reproductive <br />success of hatchery and wild summer-run steelhead under natural <br />conditions. Transactions of the American Fisheries Society, 115, 727-735. <br />Cooper JE (1993) Historical survey of disease in birds. Journal of <br />Zoo and Wildlife Medicine, 24, 256-264. <br />Darwin C (1868) The Variation of Animnls and Plants Under Domes- <br />tication. John Murray, London. <br />Dolan R, Robertson A (1975) The effect of conditioning the medium <br />in Drosophila in relation to frequency-dependent selection. <br />Heredity, 35, 311-316. <br />Falconer DS, Mackay TFC (1996) Introduction to Quantitative Genetics. <br />4th edn. Longman, Harlow, UK. <br />Fenner F, Ratcliffe FN (1965) Myxomatosis. Cambridge University <br />Press, Cambridge, UK. <br />Fernandez J, Toro MA, Caballero A (2004) Managing individuals' <br />contributions of maximize the allelic diversity maintained in small, <br />conserved populations. Conservation Biology, 18,1358-1367. <br />Fischer J, Lindenmayer DB (2000) An assessment of the published <br />results of animal relocations. Biological Conservation, 96, 1-11. <br />Fleming lA, Gross MT (1993) Breeding success of hatchery and <br />wild coho salmon (Oru:;orhynchus kisutch) in competition. Ecological <br />Applications, 3, 230-245. <br />Fleming lA, Hindar K, Mjolnerod IB et al. (2000) Lifetime success <br />and interactions of farm salmon invading a native population. <br />Proceedings of the Royal Society of London B, 267, 1517-1523. <br />Frankham R (1990) Are responses to artificial selection for repro- <br />ductive fitness traits consistently asymmetrical? Genetical <br />Research, 56, 35-42. <br />Frankham R (1995) Genetic management of captive populations <br />for reintroduction. In: Reintroduction Biology of Australian and <br />New Zealand Fauna (ed. Serena M), pp. 31-34. Surrey Beatty & <br />Sons, Chipping Norton, New South Wales, Australia. <br />Frankham R (2000) Modeling problems in conservation genetics <br />using laboratory animals. In: Quantitative Methods for Conserva- <br />tion Biology (eds Ferson S, Burgman M), pp. 259-273. Springer- <br />Verlag, New York. <br />Frankham R, Ballou JD, Briscoe DA (2002) Introduction to Conser- <br />vation Genetics. Cambridge University Press, Cambridge, UK. <br />Frankham R, Hemmer H, Ryder OA et al. (1986) Selection in captive <br />populations. Zoo Biology, 5, 127-138. <br />Frankham R, Loebel DA (1992) Modeling problems in conserva- <br />tion genetics using captive Drosophila populations: rapid genetic <br />adaptation to captivity. Zoo Biology, 11, 333-342. <br />Frankham R, Manning H, Margan SH, Briscoe DA (2000) Does <br />equalisation of family sizes reduce genetic adaptation to captiv- <br />ity? Animnl Conservation, 3, 357-363. <br />Frankham R, Nurthen RK (1981) Forging links between popu- <br />lation and quantitative genetics, Theoretical and Applied Genetics, <br />59,251-263. <br />