Ryder, O.A.

Houck, M.L.; Ryder, O.A.; Vahala, J.; Kock, R.; Oosterhuis, J.E. 1994. Diploid chromosome number and chromosomal variation in the white rhinoceros (Ceratotherium simum). Journal of Heredity 85: 30-34, figs. 1-3, table 1.

Vahala, J.; Kase, F.; Ryder, O.A. 1994. Haematological and biochemical values of the blood and blood serum of captive northern white rhinoceroses (Ceratotherium simum cottoni). Acta Veterinaria Brno 63: 99-102.

George, M.; Chemnick, L.G.; Cisova, D.; Gabrisova, E.; Stratil, A.; Ryder, O.A. 1993. Genetic differentiation of white rhinoceros subspecies: diagnostic differences in mitochondrial DNA and serum proteins.

Noble, S.J.; Ryder, O.A. 1993. Perinatal mortality in rhinos.

Jama, M.; Zhang, Y.; Aman, R.A.; Ryder, O.A. 1993. Sequence of the mitochondial control region, tRNA(thr), tRNA(pro) and tRNA(phe) genes from the black rhinoceros, Diceros bicornis. Nucleic Acids Research 21 (18): 4392, figs. 1-2.

Ryder, O.A. 1993. Rhinoceros biology and conservation: Proceedings of an international conference, San Diego, U.S.A. San Diego, Zoological Society. pp. i-v, 1-368.

Ryder, O.A. 1990. A wildlife genetics laboratory in Kenya. Zoonooz (San Diego) 63 (9) Sep: 5-9, 9 images.

Merenlender, A.M.; Woodruff, D.S.; Ryder, O.A.; Kock, R.; Vahala, J. 1989. Allozyme variation and differentiation in African and Indian rhinoceroses. Journal of Heredity 80: 377-382, fig. 1, tables 1-3.

Ryder, O.A. 1988. Research frontier in genetics. Proceedings of the AAZPA Meeting. 375-381.

Ryder, O.A.; Houck, M.L.; Kumamoto, A.T. 1987. Rhinoceros genetics: the state-of-the-art and application to conservation measures. AAZPA Annual Conference Proceedings 1987: 710-714.

Ryder, O.A. 1986. Species conservation and systematics: the dilemma of subspecies. Tree. 9-10.

Ryder, O.A.; Byrd, M.L. 1984. One medicine: a tribute to Kurt Benirschke. Berlin etc., Springer. pp. 1-373.

George, M.; Puentes, L.A.; Ryder, O.A. 1983. Genetische Unterschiede zwischen den Unterarten des Breitmaulnashorns.

Ryder, O.A. 1981. (White) rhinos to China. Zoonooz (San Diego) 54 (1) Jan: 10-12, 5 images.