Publications
Recent work
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Richardson F D, B D Hahn and P I Wilke (1991). A model for the evaluation of different production strategies for animal production from rangeland in developing areas: an overview. Journal of the Grassland Society of Southern Africa 8, 153-159.
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Richardson, F.D. and Hahn, B.D. 1994. Models for the selection of cow types for extensive meat and milk production in developing areas. Pastoral Development Network Paper 36d. Overseas Development Institute, London, 27pp.
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Richardson, F.D. (1994). The needs of readers. Invited Editorial. British Journal of Nutrition 72: 795-797.
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Hahn, B.D., Richardson, F.D. and Starfield, A.M. (1999). Frame-based modelling as a method of simulating rangeland production systems in the long term. Agricultural Systems 62, 29-49.
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Richardson F D, B D Hahn and Schoeman, S.J. (2000). Modelling nutrient utilization by livestock grazing semi-arid rangeland. In Modelling Nutrient Utilization in Farm Animals ed. J P McNamara, J France and D Beever, CABI Publishing, Wallingford UK and New York, 263-280.
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Witten G Q and Richardson, F.D. (2000). Modelling nutrient utilization in growing cattle subjected to short or long periods of moderate to severe undernutrition. In Modelling Nutrient Utilization in Farm Animals, ed. J P McNamara, J France and D Beever, CABI Publishing, Wallingford UK and New York, 241-252.
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Witten G Q and F D Richardson (2000). Dynamic control of ammonia and urea diffusion across the rumen wall. Mathematical Modelling in Nutrition and the Health Sciences (Penn State University, USA, July 29 - August 1).
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Witten G Q (2000). Modelling the control of energy partitioning between protein and fat during undernutrition. International Conference on Mathematical Biology (University of Utah, USA, August 3-5).
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Witten, G.Q (2002). Mathematical models of physiological mechanisms affecting the adaptation of growing cattle during and after a period of under-nutrition. PhD Thesis, University of Cape Town (unpublished).
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Chawatama S, Ndlovu, L.R., Richardson, F.D., Mhlanga, F. and Dzama, K. (2003a). A simulation model of draught animal power in smallholder farming systems. Part I: Context and structural overview. Agricultural Systems 76, 415-440.
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Chawatama S, Ndlovu, L.R., Richardson, F.D., Mhlanga, F. and Dzama, K. (2003). A simulation model of draught animal power in smallholder farming systems. Part II: Model evaluation and application. Agricultural Systems 76, 441-455.
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Richardson F D, B D Hahn and M T Hoffman (2003). Modelling the dynamics of a Namaqualand pastoral system. Proceedings of the VIIth International Rangeland Congress (Durban, July 26–August 1), African Journal of Range & Forage Science 20(2):142.
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Witten, G.Q. and Richardson, F.D. (2003). Competition of three aggregated microbial species for four substrates in the rumen. Ecological Modelling, 164: 121-135.
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Richardson F D, Hahn, B.D. and Hoffman, M.T. (2004). Understanding arid and semi-arid grazing systems: why both equilibrium and non-equilibrium concepts are inadequate. In: S. Vetter (Editor), Rangelands at equilibrium and non-equilibrium, Programme for Land and Agrarian Studies, School of Government, University of the Western Cape, CapeTown, pp. 17–29.
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Richardson F D (2004). Simulation models of rangeland production systems: simple and complex. PhD thesis, University of Cape Town (unpublished).
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Hahn B D, Richardson, F.D., Hoffman, M.T., Roberts, R,. Todd, S.W. and Carrick, P. (2005). A simulation model of long-term climate, livestock and vegetation interactions on communal rangelands in the semi-arid Succulent Karoo, Namaqualand, South Africa. Ecological Modelling, 183: 211-230.
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Richardson F D, Hahn, B.D., and Hoffman, M.T. (2005). On the dynamics of grazing systems in the semi-arid succulent Karoo: The relevance of equilibrium and non-equilibrium concepts to the sustainability of semi-arid pastoral systems. Ecological Modelling, 187(4): 491-512.
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Richardson, F.D. and Smith, A. J. (2006). Beef Published by Macmillan Education in co-operation with The Technical Centre for Agricultural and Rural Co-operation (CTA). ISBN 0-333-59833-4. 120 pages
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Richardson, F.D. and Hahn, B.D. (2007a). A short-term mechanistic model of forage and livestock in the semi-arid Succulent Karoo: 1. Description of the model and sensitivity analyses. Agricultural Systems, 95: 49-61.
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Richardson, F.D. and Hahn, B.D. (2007b). A short-term mechanistic model of forage and livestock in the semi-arid Succulent Karoo: 2. Evaluation and application. Agricultural Systems, 95: 62-75.
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Richardson, F.D., Hahn, B.D. and Hoffman, M.T. (2007). Modelling the productivity and sustainability of pastoral systems in the communal areas of Namaqualand. Journal of Arid Environments, 70: 701-717.
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Richardson, F.D. (2009). Modelling the long-term consequences of under-nutrition of cows grazing semi-arid range for the growth of their progeny. South African Journal of Animal Science. 39: (Supplement 1—10th World Conference on Animal production: Guest Editor: Prof. N.H. Casey) Pages 202-205.
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Richardson, F.D., Hoffman, M.T. and Gillson. L. (2010) Modelling the complex dynamics of vegetation, livestock and rainfall in a semi-arid rangeland in South Africa. African Journal of Range &Forage Science. 27: 125-142.
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Kazembe, J.A. (2010) Modelling the Influence of Rainfall Variability and Different Grazing Systems on the Spatiotemporal Dynamics and Productivity of Semiarid Rangelands. PhD Thesis, University of Cape Town (Unpublished).
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Richardson, F.D. and Hoffman, M.T.(2011) Using models to predict the probability of degradation of rangelands when subjected to different management strategies. In: Observations on Environmental Change in South Africa, Zietsman L (ed), p 109-115. South African Environmental Observation Network, Pretoria. 303 pp.