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Nardelli, F.; Dierenfeld, E.S.; Havmoller, R.G.; Schaffer, N.E.; Roth, T.L. 2025. Sumatran Rhinoceros Dicerorhinus sumatrensis (Fischer, 1814). [chapter 7]. In: Melletti, M.; Talukdar, B.; Balfour, D. 2025. Rhinos of the world: ecology, conservation and management. Berlin, Springer. pp. 1530183. doi.org/10.1007/978-3-031-67169-2_7
Houwald, F. von; Ferrie, G.M.; Ellis, S.; Schaffer, N.E.; Pilgrim, M.; Versteege, L.; Eyres, A. 2025. Ex situ conservation and management of rhinoceros. [chapter 14]. In: Melletti, M.; Talukdar, B.; Balfour, D. 2025. Rhinos of the world: ecology, conservation and management. Berlin, Springer. pp. 351-365. doi.org/10.1007/978-3-031-67169-2_14
Payne, J.; Dixon, K.K.; Lusli, S.; Zainuddin, Z.Z.; Indrawan, M.; Yoganand, K.; Rookmaaker, L.C.; Schaffer, N.E.; Wahab, A.Z.A.; Kretzschmar, P.; Havmoller, R.G.; Agil, M. 2025. The Sumatran Rhinoceros: what went wrong and how to move forward. [chapter 12]. In: Melletti, M.; Talukdar, B.; Balfour, D. 2025. Rhinos of the world: ecology, conservation and management. Berlin, Springer. pp. 307-331. doi.org/10.1007/978-3-031-67169-2_12
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Payne, J.; Dixon, K.K.; Lusli, S.; Zainuddin, Z.Z.; Indrawan, M.; Rookmaaker, L.C.; Schaffer, N.E.; Wahab, A.Z.A.; Kretzschmar, P.; Havmoller, R.G.; Agil, M.; Yoganand, K. 2025. The most endangered extant rhino species is now on the verge of extinction. Pachyderm 66: 214-220.
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Schaffer, N.E.; Agil, M.; Zainuddin, Z.Z. 2020. Ramifications of reproductive diseases on the recovery of the Sumatran rhinoceros Dicerorhinus sumatrensis (Mammalia: Perissodactyla: Rhinocerotidae). Journal of Threatened Taxa 12 (3): 15279-15288.
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Kretzschmar, P.; Kramerschadt, S.; Ambu, L.N.; Bender, J.; Bohm, T.; Ernsing, M.; Goeritz, F.; Hermes, R.; Payne, J.; Schaffer, N.E.; Thayaparan, S. 2016. The catastrophic decline of the Sumatran rhino (Dicerorhinus sumatrensis harrissoni) in Sabah: Historic exploitation, reduced female reproductive performance and population viability. Global Ecology and Conservation 6: 257-275.
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Kretzschmar, P.; Kramerschadt, S.; Ambu, L.N.; Bender, J.; Bohm, T.; Ernsing, M.; Goeritz, F.; Hermes, R.; Payne, J.; Schaffer, N.E. 2016. Lessons learned from the decline of the Sumatran rhino (Dicerorhinus sumatrensis harrissoni) in Sabah (abstract). In: Scientific program of the 15th International Elephant & Rhino conservation and research symposium, Singapore, November 14-18, 2016. pp. 59-60.
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Kretzschmar, P.; Ambu, L.N.; Bender, J.; Bosi, E.J.; Ernsing, M.; Hofer, H.; Payne, J.; Schaffer, N.E.; Siva, T.; Kramerschadt, S. 2014. Using 10 years’ survey data to assess environmental variables associated with the distribution of Sumatra rhino in Sabah, Malaysia. Proceedings European Conference of Tropical Ecology in Freising, Germany 2014: 1.
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Kretzschmar, P.; Sipangkui, R.; Schaffer, N.E. 2009. Eye disorders in captive Sumatran rhinoceros (Dicerorhinus sumatrensis harrissoni) in Sabah, Malaysia. Proceedings of the international conference on diseases of zoo and wild animals 2009: 236-242, figs. 1-6.
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Thayaparan, S.; Payne, J.; Ahmad, A.H.; Schaffer, N.E.; Tungga, A. 2007. Tabin Wildlife Reserve Sumatran rhinoceros general survey 2007. Organized by Sabah Wildlife Department and SOSRhino jointly with WWF-Malaysia and UMS. Report to Sabah Wildlife Department. pp. 1-43.
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Kretzschmar, P.; Schaffer, N.E.; Bosi, E.J.; Andau, P.M.; Schwarzenberger, F. 2007. Conservation and captive management of Sumatran rhinos in Sabah, Malaysia. Proceedings of the Conference on Animals, zoos & conservation, Poznan, Poland 1: 7-14.
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Kretzschmar, P.; Hermes, R.; Hildebrandt, T.B.; Andau, P.M.; Sentenial, N.; Symphorosa, S.; Goeritz, F.; Walzer, C.; Schwarzenberger, F.; Schaffer, N.E. 2006. Assisted reproduction program in the Sumatran rhinoceros (Dicerorhinus sumatrensis harrissonii). Proceedings of the International Symposium on physiology and ethology of wild and zoo animals 6: 132-133.
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Hermes, R.; Hildebrandt, T.B.; Portas, T.J.; Goeritz, F.; Bryant, B.; Kretzschmar, P.; Walzer, C.; Schaffer, N.E.; Ladds, P.; Blottner, S. 2006. Testis and epididymis ultrasonography and fine-needle biopsy in the rhinoceros for tumor and fertility diagnosis. Proceedings of the European Association of Zoo- and Wildlife Veterinarians 2006: 1-2.
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Schaffer, N.E. 2006. Tanjung Reproductive Post-Mortem Report to Sabah Wildlife Department. SOS Rhino. pp. 1-8.
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Schaffer, N.E.; Agil, M.; Bosi, E.J. 2002. Utero – ovarian pathological complex of the Sumatran Rhinoceros (Dicerorhinus sumatrensis). In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2002. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling. p. 322.
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Tuah, M.N.A.; Kilbourn, A.; Bosi, E.J.; Schaffer, N.E.; Mohamed, M. 2002. Demographics of Sumatran rhinoceros (Dicerorhinus sumatrensis harrissoni) in Sabah, Malaysia: correlation to food distribution in Tabin Wildlife Reserve. In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2002. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling. p. 330.
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Bosi, E.J.; Kilbourn, A.; Schaffer, N.E. 2002. Sumatran rhinoceros conservation strategy in Sabah, Malaysia. In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2002. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling. pp. 166-172.
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Schaffer, N.E.; Meehan, T.P.; Jeyendran, R.S. 2002. Successful electroejaculation and other semen procurement methods from four species of rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis, Dicerorhinus sumatrensis). In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2002. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling. p. 218.
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Schaffer, N.E.; Bryant, W. 2002. Progesterone supplemented pregnancy in a black rhinoceros (Diceros bicomis): a case report. In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2002. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling. pp. 316-321.
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Schaffer, N.E.; Bryant, W. 2001. Progesterone supplemention and pregnancy in a black rhinoceros (Diceros bicomis): A case report. In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2001. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten. p. 76.
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Schaffer, N.E.; Meehan, T.P.; Jeyendran, R.S. 2001. Successful electroejaculation and procurement methods from four species of rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis, Dicerorhinus sumatrensis). In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2001. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten. p. 47.
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Schaffer, N.E.; Agil, M.; Bosi, E.J. 2001. Utero – ovarian pathological complex of the Sumatran Rhinoceros (Dicerorhinus sumatrensis). In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2001. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten. pp. 76-77.
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Tuah, M.N.A.; Kilbourn, A.; Bosi, E.J.; Schaffer, N.E.; Mohamed, M. 2001. Demographics of Sumatran rhinoceros (Dicerorhinus sumatrensis harrissoni) in Sabah, Malaysia: Correlation to food distribution in Tabin Wildlife Reserve. In: Schwammer, H.M.; Foose, T.J.; Fouraker, M.; Olson, D. 2001. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten. pp. 78-79.
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Schaffer, N.E.; Meehan, T.P.; Bryant, W.; Agnew, D.; Atkinson, M.W.; Wolfe, B.A. 2001. Ultrasonographic monitoring of electroejaculation in three species of rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis). Proceedings of the AAZV, AAWV, ARAV, NAZWV Joint Conference 2001: 343.
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Schaffer, N.E.; Foley, G.L.; Gill, S.; Pope, C.E. 2001. Clinical implications of rhinoceros reproductive tract anatomy and histology. Journal of Zoo and Wildlife Medicine 32 (1): 31-46, figs. 1-15, tables 1-3.
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