Ambrose S.H., DeNiro M.J. 1986. The isotopic ecology of East African mammals. Oeco. 69: 395-406
Bergström R., Skarpe C. 1999. The abundance of large wild herbivores in a semi-arid savanna in relation to seasons, pans and livestock. Afr. J. Ecol. 37: 12-26
Berger J., Murray Berger K., Bergen S., Buuveibaatar B., Fine A., Lkhavgvasuren B., Young J.K., Zahler P.2008. Migration bottlenecks; climate, and the conservation of Pleistocene relicts in Central Asia. Op. Conser. Biol. J. 2: 9-10
Cerling E.T., Harris J.M., MacFadden B.J., Leakey M.G., Quade J., Eisenmann V., Ehleringer J.R. 1997. Global change through the Miocene/Pliocene boundary. Nature 389: 153-158
Cerling E.T., Harris J.M., Passey B.H. 2003. Diets of east African bovidae based on stable isotope analysis. J. Mam. 84(2): 456-470
Cerling E.T., Wittemyers G., Rasmussen H.B., Volltrah F., Cerling C.E., Robinson T.J., Hamilton I.D. 2006. Stable isotopes in elephant hair document migration patterns and diet changes. PNAS 103(2): 371–373
DeNiro M.J., Epstein S. 1978. Influence of diet on the distribution of carbon isotopes in animals. Geochim. Cosmochim. Acta 42: 495-506
Gordon I.J., Illius A.W. 1989. Resource partitioning by ungulates on the Isle of Rhum. Oeco. 79: 383-389
Hobson K.A., Wassenaar L.I. 2008. Tracking animal migration with stable isotopes, volume 2 (Terrestrial Ecology). Academic Press, London, UK.
Leary R.F., Allendorf F.W. 1989. Fluctuating asymmetry as an indicator of stress: implications for conservation biology. Trend Ecol. Evol. 4: 214-217
Lee-Thorp J., van der Merwe N.J. 1987. Carbon isotopes analysis of fossil bone apatite. South Afr. J. Sci. 83: 712-715
Le Houérou H.N. 2002. Man-made deserts: Desertization processes and threats. Ar. Land Res. Manag. 16: 1-36
Longinelli A. 1984. Oxygen isotopes in mammals bone phosphate: a new tool for paleohydrological and paleoclimatological research? Geochim. Cosmochim. Acta 48: 385-390
Luz B., Kolodny Y., Horowitz M. 1984. Fractionation of oxygen isotopes between mammalian bone-phosphate and environmental drinking water. Geochim. Cosmochim. Acta 48: 1689-1693
Macko S.A., Engel M.H., Lubec V.C., O’Connell T.C., Hedges R.E.M. 1999. Documenting the diet in ancient human populations through stable isotope analysis of hair. Philos. Trans. R. Soc. London B 354: 65-76
Moller A.P., Cuevro J.J., Soler J.J., Zamora-Mûnoz C. 1996. Horn asymmetry and fitness in gemsbok, Oryx g. gazella. Behav. Ecol. 7: 247-253
Moller A.P., Swaddle J.P. 1997. Asymmetry, developmental stability and evolution. Oxford University Press, Oxford, United Kingdom.
Nagy K.N., Knight M.H. 1994. Energy, water, and food use in springbok antelope (Antidorcas marsupialis) in the Kalahari desert. J. Mamm. 75(4): 860-872
Ostrowski S., Williams J.B., Bedin E., Ismail K. 2002. Water influx and food consumption of free living oryxes (Oryx leucoryx) in the Arabian desert in summer. J. Mamm. 83: 665-673
Sommer S., Loddo S., Puddu R. 1998. Indicators of soil consumption by urbanisation and industrial activities. In Indicators for Assessing Desertification in the Mediterranean, Enne G, D’Angelo M, Zanolla CH (eds). Proceedings of the International Seminar Held in Porto Torres, Italy, September 1998. Ministerio dell’Ambiente, ANPA: Porto Torres; 116–125.
Vitousek P.M., Ehrlich P.R., Ehrlich A.H., Matson P.A. 1986. Biosc. 36: 368
Namibia Association of CBNRM Support Organizations. NACSO 2009.
http://www.nacso.org.na/index.php
Digital Atlas of Namibia. 2002. Directorate of Environmental Affaires, Ministry of Environment and Tourism of Namibia. http://www.uni-koeln.de/sfb389/e/e1/download/atlas_namibia/index_e.htm