Publications by date, newest to oldest
Ryder, O.A. 1989. Recent advances in the applications of research in the genetics of small populations to the conservation of species in zoological parks . Pages 55-60 in Achievements of Zoos in Breeding Rare and Endangered Species of Animals . Edited by
V. Spitsin. Ministry of Culture of the Union of Soviet Socialist Republics, Moscow, Union of Soviet Socialist Republics.
Ryder, O.A. 1989. Genetic studies in support of conservation of gorillas. International Union of Directors of Zoological GardensScientific Session of the 44th Annual Conference 1989. 54-58.
Temple, S.A., M.P. Wallace. 1989. Survivorship patterns in a population of Andean condors. Pages 247-251 in Raptors in the Modern World. Edited by B.U. Meyburg, and R.D. Chancellor. World Working Group on Birds of Prey, Berlin, Germany.
Wallace, M.P. 1989. Andean Condor Experimental Releases to Enhance California Condor Recovery. Endangered Species Update 6. 1.
Bowling, A.T., O.A. Ryder. 1988. Switched identity of two Przewalski’s horse mares detected by blood typing . Zoo Biology 7. 81-84.
Bowling, A.T., O.A. Ryder. 1988. Reply to letter by P.W. Hedrick . Journal of Heredity 79. 401-402.
Meyne, J., D.H. Wurster-Hill, T.C. Hsu, O.A. Ryder, O.G. Ward, H. Hobart, R.K. Moyzis. 1988. Evolution of human telomeric repetitive DNA sequence: Non-telomeric localization accompanying chromosomal rearrangement and speciation . American Journal of Human Genetics 43. A115.
Oshima, R.G., K. Trevor, L.H. Shevinsky, O.A. Ryder, G. Cecena. 1988. Identification of the gene coding for the Endo B murine cytokeratin and its methylated, stable inactive state in mouse non-epithelial cells . Genes & Development 2. 505-516.
Ryder, O.A. 1988. Founder effects and endangered species . Nature 331. 396.
Ryder, O.A., J.H. Shaw, C.M. Wemmer. 1988. Species, subspecies and ex situ conservation. International Zoo Yearbook 27. 134-140.
Ryder, O.A., R. Massena. 1988. A case of male infanticide in Equus przewalskii . Applied Animal Behaviour Science 21. 187-190.
Ryder, O.A. 1988. Przewalski’s horse: Putting the wild horse back in the wild . Oryx 22. 154-157.
Ryder, O.A. 1988. Research frontiers in genetics: Future needs and opportunities in support of self-sustaining populations . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1988. 375-379.
Ryder, O.A. 1988. Genetic considerations in saving rhinoceros populations. Pages 118-123 in Technologies for conserving species: Saving the endangered rhinoceros.Hearing before the subcommittee on Natural Resources, Agriculture Research and Environmentof theCommittee on Science, Space, and TechnologyU.S. House of RepresentativesOne-hundredth CongressSecond Session . United States Government Printing Office, Washington, District of Columbia.
Wallace, M.P., S.A. Temple. 1988. A comparison between raptor and vultures hacking techniques. . Pages 75-81 in Proceedings of the International Symposium on Raptor Reintroduction. Edited by D.K. Garcelon, and G.W. Roemer. Institute for Wildlife Studies, Arcata, California/United States of America.
Wallace, M.P., S.A. Temple. 1988. Impacts of the 1982-1983 El Nino on Population Dynamics of Andean Condors in Peru. Biotropica 20. 144-150.
Bowling, A.T., O.A. Ryder. 1987. Genetic studies of blood markers in Przewalski’s horses . Journal of Heredity 78. 75-80.
Lake, L.M., O.A. Ryder. 1987. Conservation and organization of a highly repetitive DNA fragment in the genus Equus. Journal of Cell Biology 105. 204a.
Ryder, O.A. 1987. Conservation action for gazelles: An urgent need . Trends in Ecology & Evolution 2. 143-144.
Ryder, O.A. 1987. Captive breeding and Przewalski’s horse . Pages 156 in Technologies to Maintain Biological Diversity. Edited by Congress of the United States Office of Technology Assessment. Congress of the United States Office of Technology Assessment, District of Columbia, United States of America.
Ryder, O.A. 1987. Biochemical investigations of rhino systematics. Proceedings of African rhino workshop. Pachyderm 9. 5-6.
Ryder, O.A., M.L. Houck, A.T. Kumamoto. 1987. Rhinoceros genetics: State of the art and application to conservation measures . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1987. 710-714.
Snyder, N.F.R., M.P. Wallace. 1987. Reintroduction of the Thick-billed Parrot in Arizona. Proceedings of the Jean Delacour/International Foundation for Conservation of Birds Symposium on Breeding Birds in Captivity 1987. 360-384.
Sumi, H.P., O.A. Ryder. 1987. Zoo researchers: A new educational resource . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1987. 569-580.
Wallace, M.P., S.A. Temple. 1987. Releasing captive-reared Andean condors to the wild. The Journal of Wildlife Management 51. 541-550.
Wallace, M.P., S.A. Temple. 1987. Competitive interactions within and between species in a guild of avian scavengers. . The Auk 104. 290-295.
Durrant, B. 1986. Embryo Manipulations. Pages 1053-1056 in Current Therapy in Theriogenology. Edited by D.A. Morrow. W.B. Saunders, Philadelphia, Pennsylvania.
Frankham, R., H. Hemmer, O.A. Ryder, E.G. Cothran, M.E. Soulè, N.D. Murray, M. Snyder. 1986. Selection in captive populations . Zoo Biology 5. 127-138.
George, M., O.A. Ryder. 1986. Mitochondrial DNA evolution in the genus Equus . Molecular Biology and Evolution 3. 535-546.
MacClure, J.W., J.L. VandeBerg, B. Read, O.A. Ryder. 1986. Pedigree analysis by computer simulation . Zoo Biology 5. 147-160.
Nielsen, K. 1986. The life of the Greater North American Web Marm . A Journal of No Small Scientific Repute 12. 50-60.
Ryder, O.A. 1986. Tools for supporting breeding programme goals . International Zoo Yearbook 24/25. 157-162.
Ryder, O.A. 1986. Genetic analysis of Przewalski’s horses in captivity . Pages 43-66 in The Przewalski Horse and Restoration to its Natural Habitat in Mongolia . Edited by Food and Agriculture Organization of the United Nations, and United Nations Environment Programme. Food and Agriculture Organization of the United Nations, Rome, Italy.
Ryder, O.A. 1986. Genetics of small populations of Equus przewalskii . Pages 117-130 in The Przewalski Horse and Restoration to its Natural Habitat in Mongolia . Edited by Food and Agriculture Organization of the United Nations, and United Nations Environment Programme. Food and Agriculture Organization of the United Nations, Rome, Italy.
Ryder, O.A. 1986. Species conservation and systematics: The dilemma of subspecies . Trends in Ecology & Evolution 1. 9-10.
Ryder, O.A. 1986. The collection of samples for genetic analysis: Principles, protocols and pragmatism . Pages 1033-1036 in Primates: The Road to Self-Sustaining Populations. Edited by K. Benirschke. Springer Verlag, New York, New York.
Ryder, O.A. 1986. Status of red ruffed lemurs, Varecia variegata rubra, in captivity . Proceedings of the International Union of Directors of Zoological Gardens 41. 42-45.
Woodruff, D.A., O.A. Ryder. 1986. Genetic characterization and conservation of endangered species: Arabian oryx and Pere David’s deer. Isozyme Bulletin 19. 33.
1985. A genetic comparison of Dasypus novemcinctus and D. hybridus based on electrophoretic studies . Pages 143-146 in The Evolution and Ecology of Armadillos Sloths and Vermilinguas . Smithsonian Institution, District of Columbia, United States of America.
Benirschke, K., O.A. Ryder. 1985. Genetic aspects of equids with particular reference to their hybrids. Equine Veterinary Journal Supplement 3. 1-10.
Lowenstein, J.M., O.A. Ryder. 1985. Immunological systematics of the extinct quagga (Equidae) . Experentia 41. 1192-1193.
Rideout, B.A., G.E. Gause, K. Benirschke, B.L. Lasley. 1985. Stress induced adrenal changes and their relation to reproductive failure in captive nine-banded armadillos (Dasypus novemcinctus) . Zoo Biology 4. 129-137.
Ryder, O.A., L.G. Chemnick, A.T. Bowling, K. Benirschke. 1985. A male mule foal qualifies as the offspring of a female mule and jack donkey . Journal of Heredity 76. 379-381.
Cronin, J.E., V.M. Sarich, O.A. Ryder. 1984. Molecular evolution and speciation in the lesser apes. Pages 467-485 in The Lesser Apes: Evolution and Behavioural Biology . Edited by H. Prenschoft, D.J. Chivers, W.Y. Brockelman, and N. Creel. Edinburgh University Press, Edinburgh, Scotland.
Higuchi, R., B. Bowman, M. Freiberger, O.A. Ryder, A.C. Wilson. 1984. DNA sequences from the quagga, an extinct member of the horse family . Nature 312. 282-284.
Ryder, O.A. 1984. Molecular cytogenetics of the Equidae:III. Cytological localization of heterochromatin and satellite DNA in Hartmann’s mountain zebra, Equus zebra hartmannae (Matschie, 1898). Pages 119-127 in One Medicine: A Tribute to Kurt Benirschke . Edited by O.A. Ryder, and M.L. Byrd. Springer Verlag, New York, New York.
Ryder, O.A., A.T. Bowling, P.C. Brisbin, P.M. Carroll, I.K. Gadi, S.K. Hansen, E.A. Wedemeyer. 1984. Genetics of Equus przewalskii Poliakov 1881: Analysis of genetic variability in breeding lines, comparison of equid DNAs, and a brief description of a cooperative breeding program in North America . Equus 2. 207-228.
Ryder, O.A., K. Benirschke. 1984. Value of frozen tissue collections for zoological parks. Pages 6-9 in Collections of Viable Tissues: Value, Management, and Future . Edited by H.C. Dessauer, and M.S. Hafner. Association of Systematic Collections, Lawrence, Kansas.
Ryder, O.A. 1984. A note on the North American Przewalski’s horse breeders’ group-to participants and other interested parties . Equus 2. 199-200.
Thompson, M.A., B.L. Lasley, B.A. Rideout, L.H. Kasman. 1984. Characterization of the estrogenic properties of a nonsteroidal estrogen, equol, extracted from the urine of pregnant macaques . Biology of Reproduction 31. 705-713.
Gadi, I.K., O.A. Ryder. 1983. Molecular cytogenetics of the Equidae.II. Purification and cytological localization of a (G+C)-rich satellite DNA from Equus hemionus onager and cross-species hybridization to E. asinus metaphase chromosomes . Cytogenetics and Cell Genetics 35. 124-130.
Gadi, I.K., O.A. Ryder. 1983. Distribution of silver-stained nucleolus organizing regions in the chromosomes of the Equidae. Genetica 62. 109-116.
Ryder, O.A., L.G. Chemnick. 1983. Relative hypomethylation of CpG residues in a (dG+dC)-rich satellite DNA from Equus przewalskii . Journal of Cell Biology 97. 379a.
Ryder, O.A. 1983. Genetic considerations in breeding threatened and endangered birds . Proceedings of the International Foundation for Conservation of Birds 1983. 551-565.
Tong, B.D., O.A. Ryder. 1983. Restriction mapping of the ribosomal genes of the family Equidae . Journal of Cell Biology 97. 382a.
Wallace, M.P., S.A. Temple. 1983. An evaluation of techniques for releasing hand-reared vultures to the wild. Pages 400-423 in Vulture Biology and Management. Edited by S.R. Wilbur, and J.A. Jackson. University of California Press, Berkeley, California/United States of America.
Ryder, O.A., A.E. Wedemeyer. 1982. A cooperative breeding program for the Mongolian wild horse, Equus przewalskii, in the United States. Biological Conservation 22. 259-271.
Ryder, O.A., R.A. Fisher, W. Putt, D. Whitehouse. 1982. Genetic differences among subgroups of a captively bred endangered species: The case of the Mongolian wild horse, Equus przewalskii. American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1982. 91-102.
Yang, T.P., S.K. Hansen, K.K. Oishi, O.A. Ryder, B.A. Hamkalo. 1982. Characterization of a cloned repetitive DNA sequence concentrated on the human X chromosome . Proceedings of the National Academy of Sciences 79. 6593-6597.
Mitchell, A.R., J.C. Gosden, O.A. Ryder. 1981. Satellite DNA relationships in man and the primates . Nucleic Acids Research 9. 3235.
Ryder, O.A., P.C. Brisbin, A.T. Bowling, E.A. Wedemeyer. 1981. Monitoring genetic variation in endangered species . Pages 417-424 in Evolution Today, Proceedings of the Second International Congress of Systematic and Evolutionary Biology . Edited by G.G.E. Scudder, and J.L. Reveal. Carnegie-Mellon University, Pittsburgh, Pennsylvania.
Ryder, O.A. 1981. Preserving the gene pools of endangered species: Management considerations . Journal of Zoo and Wildlife Medicine 12. 112-113.
Ryder, O.A. 1981. North American Przewalski’s horse breeding program. American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1981. 35-40.
Yang, T.P., S.K. Hansen, O.A. Ryder, B.A. Hamkalo. 1981. The arrangement in primate genomes of a human repeated DNA sequence. Journal of Cell Biology 91. 133a.
Yang, T.P., S.K. Hansen, K.K. Oishi, O.A. Ryder, B.A. Hamkalo. 1981. Characterization of a cloned repetitive DNA sequence located on the human X chromosome . Journal of Cell Biology 91. 132a.
Arnheim, N., M. Krystal, R. Schmickel, G. Wilson, O.A. Ryder, E. Zimmer. 1980. Molecular evidence for genetic exchanges among ribosomal genes on nonhomologous chromosomes in man and apes . Proceedings of the National Academy of Sciences 77. 7323-7327.
Benirschke, K., B.L. Lasley, O.A. Ryder. 1980. Recent advances in the technology of captive propagation. Pages 242-255 in Conservation Biology: An Evolutionary-Ecological Perspective. Edited by M.E. Soulé, and B.A. Wilcox. Sinauer Associates, Sunderland, Massachusetts.
Ryder, O.A., A.T. Kumamoto, J. Patterson, K. Benirschke. 1980. The chromosomal complement of Equus przewalskii Poliakoff . Equus 2. 43-51.
Smith, A.T., Y. Suzuki, C. Stormont, K. Benirschke, O.A. Ryder. 1980. Blood type markers in five Przewalski’s horses . Equus 2. 52-54.
Wallace, M.P., P.G. Parker, S.A. Temple. 1980. An evaluation of patagial markers for cathartid vultures. Journal of Field Ornithology 51. 309-314.
Ryder, O.A., S.K. Hansen. 1979. Molecular cytogenetics of the Equidae.I. Purification and cytological localization of a (G+C)-rich satellite DNA from Przewalski’s horse Equus przewalskii. Chromosoma 72. 115-129.
Ryder, O.A., M.C. Sparkes, R.S. Sparkes, J.B. Clegg. 1979. Hemoglobin polymorphism in Equus przewalskii and E. caballus analyzed by isoelectric focusing . Comparative Biochemistry and Physiology 62B. 305-308.
Ryder, O.A., A. Trommershausen-Smith, S.K. Hansen, Y. Suzuki, M.C. Sparkes, R.S. Sparkes, J.B. Clegg, J.E. Oosterhuis, L.S. Nelson, P.T. Robinson, J. Meier, K. Benirschke. 1979. Genetic variation in Przewalski’s horses, Equus przewalskii, of the Munich line in the United States . Pages 41-60 in Przewalski’s Horse . Edited by J. Bouman. Foundation for the Preservation and Protection of the Przewalski’s Horse, Rotterdam, Netherlands.
Ryder, O.A. 1979. The usefulness of inbreeding coefficients and heterozygosity indices in the breeding of Equus przewalskii . Pages 67-69 in Edited by J. Bouman. Foundation for the Preservation and Protection of the Przewalski’s Horse, Rotterdam, Netherlands.
Smith, A.T., O.A. Ryder, Y. Suzuki. 1979. Blood typing studies of twelve Przewalski’s horses . International Zoo Yearbook 19. 224-228.
Kaminski, M., L. Metenier, M. Sykiotis, O.A. Ryder, M. Demontoy. 1978. Common and species-specific esterases of Equidae-IV. Horse of Przewalski, onager and Zebra hartmannae. Comparative Biochemistry and Physiology 61B. 357-364.
Rice, N.R., S. Simek, O.A. Ryder, L. Coggins. 1978. Detection of proviral DNA in horse cells infected with equine infectious anemia virus. Journal of Virology 26. 577-583.
Ryder, O.A., N.C. Epel, K. Benirschke. 1978. Chromosome banding studies of the Equidae. Cytogenetics and Cell Genetics 20. 323-350.
Ryder, O.A. 1978. Chromosomal polymorphism in Equus hemionus. Cytogenetics and Cell Genetics 21. 177-183.
Ryder, O.A., S.K. Hansen. 1978. Localization of nucleotide sequences complementary to the satellite DNA of Przewalski’s horse in metaphase chromosomes of Przewalski’s horse (2n = 66) and Hartmann’s mountain zebra (2n = 32) . Journal of Cell Biology 79. 127a.
Ryder, O.A., N.C. Epel, A.T. Kumamoto, K. Benirschke. 1977. Chromosome and protein evolution in the Equidae. Journal of Supramolecular Structure. Supplement 1. 109.
Ryder, O.A. 1989. Genetic studies in support of conservation of gorillas. International Union of Directors of Zoological GardensScientific Session of the 44th Annual Conference 1989. 54-58.
Temple, S.A., M.P. Wallace. 1989. Survivorship patterns in a population of Andean condors. Pages 247-251 in Raptors in the Modern World. Edited by B.U. Meyburg, and R.D. Chancellor. World Working Group on Birds of Prey, Berlin, Germany.
Wallace, M.P. 1989. Andean Condor Experimental Releases to Enhance California Condor Recovery. Endangered Species Update 6. 1.
Bowling, A.T., O.A. Ryder. 1988. Switched identity of two Przewalski’s horse mares detected by blood typing . Zoo Biology 7. 81-84.
Bowling, A.T., O.A. Ryder. 1988. Reply to letter by P.W. Hedrick . Journal of Heredity 79. 401-402.
Meyne, J., D.H. Wurster-Hill, T.C. Hsu, O.A. Ryder, O.G. Ward, H. Hobart, R.K. Moyzis. 1988. Evolution of human telomeric repetitive DNA sequence: Non-telomeric localization accompanying chromosomal rearrangement and speciation . American Journal of Human Genetics 43. A115.
Oshima, R.G., K. Trevor, L.H. Shevinsky, O.A. Ryder, G. Cecena. 1988. Identification of the gene coding for the Endo B murine cytokeratin and its methylated, stable inactive state in mouse non-epithelial cells . Genes & Development 2. 505-516.
Ryder, O.A. 1988. Founder effects and endangered species . Nature 331. 396.
Ryder, O.A., J.H. Shaw, C.M. Wemmer. 1988. Species, subspecies and ex situ conservation. International Zoo Yearbook 27. 134-140.
Ryder, O.A., R. Massena. 1988. A case of male infanticide in Equus przewalskii . Applied Animal Behaviour Science 21. 187-190.
Ryder, O.A. 1988. Przewalski’s horse: Putting the wild horse back in the wild . Oryx 22. 154-157.
Ryder, O.A. 1988. Research frontiers in genetics: Future needs and opportunities in support of self-sustaining populations . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1988. 375-379.
Ryder, O.A. 1988. Genetic considerations in saving rhinoceros populations. Pages 118-123 in Technologies for conserving species: Saving the endangered rhinoceros.Hearing before the subcommittee on Natural Resources, Agriculture Research and Environmentof theCommittee on Science, Space, and TechnologyU.S. House of RepresentativesOne-hundredth CongressSecond Session . United States Government Printing Office, Washington, District of Columbia.
Wallace, M.P., S.A. Temple. 1988. A comparison between raptor and vultures hacking techniques. . Pages 75-81 in Proceedings of the International Symposium on Raptor Reintroduction. Edited by D.K. Garcelon, and G.W. Roemer. Institute for Wildlife Studies, Arcata, California/United States of America.
Wallace, M.P., S.A. Temple. 1988. Impacts of the 1982-1983 El Nino on Population Dynamics of Andean Condors in Peru. Biotropica 20. 144-150.
Bowling, A.T., O.A. Ryder. 1987. Genetic studies of blood markers in Przewalski’s horses . Journal of Heredity 78. 75-80.
Lake, L.M., O.A. Ryder. 1987. Conservation and organization of a highly repetitive DNA fragment in the genus Equus. Journal of Cell Biology 105. 204a.
Ryder, O.A. 1987. Conservation action for gazelles: An urgent need . Trends in Ecology & Evolution 2. 143-144.
Ryder, O.A. 1987. Captive breeding and Przewalski’s horse . Pages 156 in Technologies to Maintain Biological Diversity. Edited by Congress of the United States Office of Technology Assessment. Congress of the United States Office of Technology Assessment, District of Columbia, United States of America.
Ryder, O.A. 1987. Biochemical investigations of rhino systematics. Proceedings of African rhino workshop. Pachyderm 9. 5-6.
Ryder, O.A., M.L. Houck, A.T. Kumamoto. 1987. Rhinoceros genetics: State of the art and application to conservation measures . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1987. 710-714.
Snyder, N.F.R., M.P. Wallace. 1987. Reintroduction of the Thick-billed Parrot in Arizona. Proceedings of the Jean Delacour/International Foundation for Conservation of Birds Symposium on Breeding Birds in Captivity 1987. 360-384.
Sumi, H.P., O.A. Ryder. 1987. Zoo researchers: A new educational resource . American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1987. 569-580.
Wallace, M.P., S.A. Temple. 1987. Releasing captive-reared Andean condors to the wild. The Journal of Wildlife Management 51. 541-550.
Wallace, M.P., S.A. Temple. 1987. Competitive interactions within and between species in a guild of avian scavengers. . The Auk 104. 290-295.
Durrant, B. 1986. Embryo Manipulations. Pages 1053-1056 in Current Therapy in Theriogenology. Edited by D.A. Morrow. W.B. Saunders, Philadelphia, Pennsylvania.
Frankham, R., H. Hemmer, O.A. Ryder, E.G. Cothran, M.E. Soulè, N.D. Murray, M. Snyder. 1986. Selection in captive populations . Zoo Biology 5. 127-138.
George, M., O.A. Ryder. 1986. Mitochondrial DNA evolution in the genus Equus . Molecular Biology and Evolution 3. 535-546.
MacClure, J.W., J.L. VandeBerg, B. Read, O.A. Ryder. 1986. Pedigree analysis by computer simulation . Zoo Biology 5. 147-160.
Nielsen, K. 1986. The life of the Greater North American Web Marm . A Journal of No Small Scientific Repute 12. 50-60.
Ryder, O.A. 1986. Tools for supporting breeding programme goals . International Zoo Yearbook 24/25. 157-162.
Ryder, O.A. 1986. Genetic analysis of Przewalski’s horses in captivity . Pages 43-66 in The Przewalski Horse and Restoration to its Natural Habitat in Mongolia . Edited by Food and Agriculture Organization of the United Nations, and United Nations Environment Programme. Food and Agriculture Organization of the United Nations, Rome, Italy.
Ryder, O.A. 1986. Genetics of small populations of Equus przewalskii . Pages 117-130 in The Przewalski Horse and Restoration to its Natural Habitat in Mongolia . Edited by Food and Agriculture Organization of the United Nations, and United Nations Environment Programme. Food and Agriculture Organization of the United Nations, Rome, Italy.
Ryder, O.A. 1986. Species conservation and systematics: The dilemma of subspecies . Trends in Ecology & Evolution 1. 9-10.
Ryder, O.A. 1986. The collection of samples for genetic analysis: Principles, protocols and pragmatism . Pages 1033-1036 in Primates: The Road to Self-Sustaining Populations. Edited by K. Benirschke. Springer Verlag, New York, New York.
Ryder, O.A. 1986. Status of red ruffed lemurs, Varecia variegata rubra, in captivity . Proceedings of the International Union of Directors of Zoological Gardens 41. 42-45.
Woodruff, D.A., O.A. Ryder. 1986. Genetic characterization and conservation of endangered species: Arabian oryx and Pere David’s deer. Isozyme Bulletin 19. 33.
1985. A genetic comparison of Dasypus novemcinctus and D. hybridus based on electrophoretic studies . Pages 143-146 in The Evolution and Ecology of Armadillos Sloths and Vermilinguas . Smithsonian Institution, District of Columbia, United States of America.
Benirschke, K., O.A. Ryder. 1985. Genetic aspects of equids with particular reference to their hybrids. Equine Veterinary Journal Supplement 3. 1-10.
Lowenstein, J.M., O.A. Ryder. 1985. Immunological systematics of the extinct quagga (Equidae) . Experentia 41. 1192-1193.
Rideout, B.A., G.E. Gause, K. Benirschke, B.L. Lasley. 1985. Stress induced adrenal changes and their relation to reproductive failure in captive nine-banded armadillos (Dasypus novemcinctus) . Zoo Biology 4. 129-137.
Ryder, O.A., L.G. Chemnick, A.T. Bowling, K. Benirschke. 1985. A male mule foal qualifies as the offspring of a female mule and jack donkey . Journal of Heredity 76. 379-381.
Cronin, J.E., V.M. Sarich, O.A. Ryder. 1984. Molecular evolution and speciation in the lesser apes. Pages 467-485 in The Lesser Apes: Evolution and Behavioural Biology . Edited by H. Prenschoft, D.J. Chivers, W.Y. Brockelman, and N. Creel. Edinburgh University Press, Edinburgh, Scotland.
Higuchi, R., B. Bowman, M. Freiberger, O.A. Ryder, A.C. Wilson. 1984. DNA sequences from the quagga, an extinct member of the horse family . Nature 312. 282-284.
Ryder, O.A. 1984. Molecular cytogenetics of the Equidae:III. Cytological localization of heterochromatin and satellite DNA in Hartmann’s mountain zebra, Equus zebra hartmannae (Matschie, 1898). Pages 119-127 in One Medicine: A Tribute to Kurt Benirschke . Edited by O.A. Ryder, and M.L. Byrd. Springer Verlag, New York, New York.
Ryder, O.A., A.T. Bowling, P.C. Brisbin, P.M. Carroll, I.K. Gadi, S.K. Hansen, E.A. Wedemeyer. 1984. Genetics of Equus przewalskii Poliakov 1881: Analysis of genetic variability in breeding lines, comparison of equid DNAs, and a brief description of a cooperative breeding program in North America . Equus 2. 207-228.
Ryder, O.A., K. Benirschke. 1984. Value of frozen tissue collections for zoological parks. Pages 6-9 in Collections of Viable Tissues: Value, Management, and Future . Edited by H.C. Dessauer, and M.S. Hafner. Association of Systematic Collections, Lawrence, Kansas.
Ryder, O.A. 1984. A note on the North American Przewalski’s horse breeders’ group-to participants and other interested parties . Equus 2. 199-200.
Thompson, M.A., B.L. Lasley, B.A. Rideout, L.H. Kasman. 1984. Characterization of the estrogenic properties of a nonsteroidal estrogen, equol, extracted from the urine of pregnant macaques . Biology of Reproduction 31. 705-713.
Gadi, I.K., O.A. Ryder. 1983. Molecular cytogenetics of the Equidae.II. Purification and cytological localization of a (G+C)-rich satellite DNA from Equus hemionus onager and cross-species hybridization to E. asinus metaphase chromosomes . Cytogenetics and Cell Genetics 35. 124-130.
Gadi, I.K., O.A. Ryder. 1983. Distribution of silver-stained nucleolus organizing regions in the chromosomes of the Equidae. Genetica 62. 109-116.
Ryder, O.A., L.G. Chemnick. 1983. Relative hypomethylation of CpG residues in a (dG+dC)-rich satellite DNA from Equus przewalskii . Journal of Cell Biology 97. 379a.
Ryder, O.A. 1983. Genetic considerations in breeding threatened and endangered birds . Proceedings of the International Foundation for Conservation of Birds 1983. 551-565.
Tong, B.D., O.A. Ryder. 1983. Restriction mapping of the ribosomal genes of the family Equidae . Journal of Cell Biology 97. 382a.
Wallace, M.P., S.A. Temple. 1983. An evaluation of techniques for releasing hand-reared vultures to the wild. Pages 400-423 in Vulture Biology and Management. Edited by S.R. Wilbur, and J.A. Jackson. University of California Press, Berkeley, California/United States of America.
Ryder, O.A., A.E. Wedemeyer. 1982. A cooperative breeding program for the Mongolian wild horse, Equus przewalskii, in the United States. Biological Conservation 22. 259-271.
Ryder, O.A., R.A. Fisher, W. Putt, D. Whitehouse. 1982. Genetic differences among subgroups of a captively bred endangered species: The case of the Mongolian wild horse, Equus przewalskii. American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1982. 91-102.
Yang, T.P., S.K. Hansen, K.K. Oishi, O.A. Ryder, B.A. Hamkalo. 1982. Characterization of a cloned repetitive DNA sequence concentrated on the human X chromosome . Proceedings of the National Academy of Sciences 79. 6593-6597.
Mitchell, A.R., J.C. Gosden, O.A. Ryder. 1981. Satellite DNA relationships in man and the primates . Nucleic Acids Research 9. 3235.
Ryder, O.A., P.C. Brisbin, A.T. Bowling, E.A. Wedemeyer. 1981. Monitoring genetic variation in endangered species . Pages 417-424 in Evolution Today, Proceedings of the Second International Congress of Systematic and Evolutionary Biology . Edited by G.G.E. Scudder, and J.L. Reveal. Carnegie-Mellon University, Pittsburgh, Pennsylvania.
Ryder, O.A. 1981. Preserving the gene pools of endangered species: Management considerations . Journal of Zoo and Wildlife Medicine 12. 112-113.
Ryder, O.A. 1981. North American Przewalski’s horse breeding program. American Association of Zoological Parks and Aquariums Annual Conference Proceedings 1981. 35-40.
Yang, T.P., S.K. Hansen, O.A. Ryder, B.A. Hamkalo. 1981. The arrangement in primate genomes of a human repeated DNA sequence. Journal of Cell Biology 91. 133a.
Yang, T.P., S.K. Hansen, K.K. Oishi, O.A. Ryder, B.A. Hamkalo. 1981. Characterization of a cloned repetitive DNA sequence located on the human X chromosome . Journal of Cell Biology 91. 132a.
Arnheim, N., M. Krystal, R. Schmickel, G. Wilson, O.A. Ryder, E. Zimmer. 1980. Molecular evidence for genetic exchanges among ribosomal genes on nonhomologous chromosomes in man and apes . Proceedings of the National Academy of Sciences 77. 7323-7327.
Benirschke, K., B.L. Lasley, O.A. Ryder. 1980. Recent advances in the technology of captive propagation. Pages 242-255 in Conservation Biology: An Evolutionary-Ecological Perspective. Edited by M.E. Soulé, and B.A. Wilcox. Sinauer Associates, Sunderland, Massachusetts.
Ryder, O.A., A.T. Kumamoto, J. Patterson, K. Benirschke. 1980. The chromosomal complement of Equus przewalskii Poliakoff . Equus 2. 43-51.
Smith, A.T., Y. Suzuki, C. Stormont, K. Benirschke, O.A. Ryder. 1980. Blood type markers in five Przewalski’s horses . Equus 2. 52-54.
Wallace, M.P., P.G. Parker, S.A. Temple. 1980. An evaluation of patagial markers for cathartid vultures. Journal of Field Ornithology 51. 309-314.
Ryder, O.A., S.K. Hansen. 1979. Molecular cytogenetics of the Equidae.I. Purification and cytological localization of a (G+C)-rich satellite DNA from Przewalski’s horse Equus przewalskii. Chromosoma 72. 115-129.
Ryder, O.A., M.C. Sparkes, R.S. Sparkes, J.B. Clegg. 1979. Hemoglobin polymorphism in Equus przewalskii and E. caballus analyzed by isoelectric focusing . Comparative Biochemistry and Physiology 62B. 305-308.
Ryder, O.A., A. Trommershausen-Smith, S.K. Hansen, Y. Suzuki, M.C. Sparkes, R.S. Sparkes, J.B. Clegg, J.E. Oosterhuis, L.S. Nelson, P.T. Robinson, J. Meier, K. Benirschke. 1979. Genetic variation in Przewalski’s horses, Equus przewalskii, of the Munich line in the United States . Pages 41-60 in Przewalski’s Horse . Edited by J. Bouman. Foundation for the Preservation and Protection of the Przewalski’s Horse, Rotterdam, Netherlands.
Ryder, O.A. 1979. The usefulness of inbreeding coefficients and heterozygosity indices in the breeding of Equus przewalskii . Pages 67-69 in Edited by J. Bouman. Foundation for the Preservation and Protection of the Przewalski’s Horse, Rotterdam, Netherlands.
Smith, A.T., O.A. Ryder, Y. Suzuki. 1979. Blood typing studies of twelve Przewalski’s horses . International Zoo Yearbook 19. 224-228.
Kaminski, M., L. Metenier, M. Sykiotis, O.A. Ryder, M. Demontoy. 1978. Common and species-specific esterases of Equidae-IV. Horse of Przewalski, onager and Zebra hartmannae. Comparative Biochemistry and Physiology 61B. 357-364.
Rice, N.R., S. Simek, O.A. Ryder, L. Coggins. 1978. Detection of proviral DNA in horse cells infected with equine infectious anemia virus. Journal of Virology 26. 577-583.
Ryder, O.A., N.C. Epel, K. Benirschke. 1978. Chromosome banding studies of the Equidae. Cytogenetics and Cell Genetics 20. 323-350.
Ryder, O.A. 1978. Chromosomal polymorphism in Equus hemionus. Cytogenetics and Cell Genetics 21. 177-183.
Ryder, O.A., S.K. Hansen. 1978. Localization of nucleotide sequences complementary to the satellite DNA of Przewalski’s horse in metaphase chromosomes of Przewalski’s horse (2n = 66) and Hartmann’s mountain zebra (2n = 32) . Journal of Cell Biology 79. 127a.
Ryder, O.A., N.C. Epel, A.T. Kumamoto, K. Benirschke. 1977. Chromosome and protein evolution in the Equidae. Journal of Supramolecular Structure. Supplement 1. 109.
