Schaffer, N.E.

Houwald, F. von; Ferrie, G.M.; Ellis, S.; Schaffer, N.E.; Pilgrim, N.; 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

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.

Nardelli, F.; Dierenfeld, E.S.; Havmoller, R.G.; Schaffer, N.E.; Roth, T. 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

Schaffer, N.E.; Agil, M.; Zainuddin, Zainal Zahari 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.

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.

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.

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 2014 in Freising, Germany.

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.

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.

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.

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.

Schaffer, N.E. 2006. Tanjung Reproductive Post-Mortem Report to Sabah Wildlife Department. SOS Rhino. pp. 1-8.

Hermes, R.; Hildebrandt, T.B.; Portas, T.J.; Goeritz, F.; Bryant, B.R.; 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.

Schaffer, N.E.; Agil, M.; Bosi, E.J. 2002. Utero – ovarian pathological complex of the Sumatran Rhinoceros (Dicerorhinus sumatrensis).

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.

Bosi, E.J.; Kilbourn, A.; Schaffer, N.E. 2002. Sumatran rhinoceros conservation strategy in Sabah, Malaysia.

Schaffer, N.E.; Meehan, T.P.; Jeyendram, R.S. 2002. Successful electroejaculation and other semen procurement methods from four species of rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis, Dicerorhinus sumatrensis).

Schaffer, N.E.; Bryant, W. 2002. Progesterone supplemented pregnancy in a black rhinoceros (Diceros bicomis): a case report.

Schaffer, N.E.; Meehan, T.P.; Jeyendram, R.S. 2001. Successful electroejaculation and procurement methods from four species of rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis, Dicerorhinus sumatrensis).

Schaffer, N.E.; Agil, M.; Bosi, E.J. 2001. Utero – ovarian pathological complex of the Sumatran Rhinoceros (Dicerorhinus sumatrensis).

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.

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.

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.

Bosi, E.J.; Kilbourn, A.; Schaffer, N.E. 2001. Sumatran rhinoceros conservation strategy in Sabah.