Czekala, N.M.

Linklater, W.L.; MacDonald, E.A.; Flamand, J.R.B.; Czekala, N.M. 2010. Declining and low fecal corticoids are associated with distress, not acclimation to stress, during the translocation of African rhinoceros. Animal Conservation 13 (1): 104-111. doi.org/10.1111/j.1469-1795.2009.00308.x

Linklater, W.L.; MacDonald-Madden, E.; Flamand, J.R.B.; Czekala, N.M. 2009. Corticoid concentrations are a misleading metric of animal welfare during management: tests during the translocation of African rhinoceros. Proceedings of the AWMS Annual Conference 2009 (Napier): 89.

MacDonald, E.A.; Linklater, W.L.; Steinman, K.J.; Czekala, N.M. 2008. Rapid colour-change pregnancy test for rhinoceros using faeces. Endangered Species Research 4: 277-281, figs. 1-2, tab. 1.

White, A.; Swaisgood, R.R.; Czekala, N.M. 2007. Differential investment in sons and daughters: do white rhinoceros mothers favor sons?. Journal of Mammalogy 88 (3): 632-638, figs. 1-3.

White, A.; Swaisgood, R.R.; Czekala, N.M. 2007. Ranging patterns in white rhinoceros, Ceratotherium simum simum: implications for mating strategies. Animal Behaviour 74 (2): 349-356, fig. 1, tabs. 1-4.

Steinetz, B.G.; Brown, J.L.; Roth, T.L.; Czekala, N.M. 2005. Relaxin concentrations in serum and urine of endangered species: Correlations with physiologice events and use as a marker of pregnancy. Annals of the New York Academy of Sciences 1041: 367-378.

Swaisgood, R.R.; Czekala, N.M.; Patton, M.L. 2002. Reproductive failure in southern white rhinoceros: testing hypotheses with behavioral and hormonal data from captivity and the field.

Czekala, N.M. 2002. San Diego Center for Reproduction of Endangered Species (CRES), California, USA. International Zoo News 49 (1): 53-54.

Radcliffe, R.W.; Eyres, A.; Patton, M.L.; Czekala, N.M.; Emslie, R.H. 2001. Ultrasonographic characterization of ovarian events and fetal gestational parameters in two southern black rhinoceros (Diceros bicornis minor) and correlation to fecal progesterone. Theriogenology 55: 1033-1049, figs. 1-6.

Patton, M.L.; Swaisgood, R.R.; Czekala, N.M.; White, A.; Fetter, G.A.; Montagne, J.P.; Rieches, R.; Lance, V.A. 1999. Reproductive cycle length and pregnancy in the southern white rhinoceros (Ceratotherium simum simum) as determined by fecal pregnane analysis and observations of mating behavior. Zoo Biology 18 (2): 111-127, figs. 1-4, tables 1-2.

Patton, L.; Czekala, N.M.; Lance, V.A. 1998. Proceedings of a workshop on problems associated with the low rate of reproduction among captive-born female southern white rhinoceros (Ceratotherium simum simum). San Diego, Zoological Society. pp. 1, 1-51.

Roth, T.L.; Patton, L.; Moray Brown, J.; Czekala, N.M.; Swaisgood, R.R.; Lance, V.A. 1998. The North American experience: female hormonal cycles in southern white rhinoceros.

Patton, M.L.; Czekala, N.M.; Schaffer, N.E.; Lance, V.A. 1998. Hormonal manipulations of rhinoceros.

Radcliffe, R.W.; Czekala, N.M.; Osofsky, S.A. 1997. Combined serial ultrasonography and fecal progestin analysis for reproductive evaluation of the female white rhinoceros (Caratotherium simum simum): preliminary results. Zoo Biology 16 (5): 445-456, figs. 1-5.

Czekala, N.M.; Callison, L. 1996. Pregnancy diagnosis in the black rhinoceros ( Diceros bicornis) by salivary hormone analysis. Zoo Biology 15 (1): 33-44, figs. 1-4.