In search of optimal stocking regimes in semi-arid grazing lands: one size does not fit all

We discuss the search for optimal stocking regimes in semi-arid grazing lands. We argue that 'one size does not fit all' and that different stocking regimes are appropriate under different conditions. This paper is an attempt to move beyond polarization of the current debate towards a more integrative and flexible approach to grazing management. We propose five different conditions as major influences on grazing regimes: environmental variability and predictability; degradation and thresholds; property right regimes; discount rates; and market stability and prices. We suggest a lack of connection between the micro-economics literature and natural science and social-anthropological literature. it is timely to achieve greater integration around some key questions and hypotheses, and recognize that policy prescriptions at national or even regional levels are likely to have limited value due to context specificity.

[1]  Andrew W. Illius,et al.  ON THE RELEVANCE OF NONEQUILIBRIUM CONCEPTS TO ARID AND SEMIARID GRAZING SYSTEMS , 1999 .

[2]  William S. Abruzzi Ecological stability and community diversity during mormon colonization of the Little Colorado River Basin , 1987 .

[3]  S. Higgins,et al.  An ecological economic simulation model of a non-selective grazing system in the Nama Karoo, South Africa , 2002 .

[4]  T. O’Connor,et al.  Effect of stocking rate and rainfall on rangeland dynamics and cattle performance in a semi‐arid savanna, South Africa , 2000 .

[5]  G. Stanhill Tropical savannas (ecosystems of the world 13): F. Bourlière (Editor). Elsevier, Amsterdam—Oxford—New York, 1983, xii + 730 pages, US$197.75, Dfl.465.50, ISBN 0-444-42035-5 , 1983 .

[6]  Stephen Sandford,et al.  Opportunistic and conservative pastoral strategies: Some economic arguments , 2006 .

[7]  Ian Scoones,et al.  Living with uncertainty : new directions in pastoral development in Africa , 1995 .

[8]  J. Derry,et al.  The nature and modelling of piospheres: a review , 1999 .

[9]  P. Blaikie,et al.  Land degradation, stocking rates and conservation policies in the communal rangelands of Botswana and Zimbabwe , 1989 .

[10]  M. Fernández-Giménez,et al.  Testing a non‐equilibrium model of rangeland vegetation dynamics in Mongolia , 1999 .

[11]  David M. Anderson,et al.  Conservation in Africa : people, policies, and practice , 1989 .

[12]  R. Cowling,et al.  Desertification in the lower Sundays River Valley, South Africa , 1990 .

[13]  Harold F. Heady,et al.  Rangeland Ecology and Management , 2019 .

[14]  B. Mckenzie Reselience and stability of the grasslands of transkei herstelvermoë en stabiliteit van die grasveld van transkei , 1982 .

[15]  Alan Randall,et al.  Resource Economics: An Economic Approach to Natural Resource and Environmental Policy , 1981 .

[16]  P. Frost,et al.  Improving rural livelihoods in semi-arid regions through management of micro-catchments in semi-arid regions through the management of micro-catchments. , 1999 .

[17]  D. Bromley Testing for common versus private property: Comment , 1991 .

[18]  I. Scoones,et al.  Rethinking range ecology: implications for rangeland management in Africa. , 1992 .

[19]  M. Luckert,et al.  Is the Tragedy of the Commons Likely? Factors Preventing the Dissipation of Fuelwood Rents in Zimbabwe , 2003, Land Economics.

[20]  S. Sullivan,et al.  On non‐equilibrium in arid and semi‐arid grazing systems , 2002 .

[21]  J. Ellis,et al.  Stability of African pastoral ecosystems: alternate paradigms and implications for development , 1988 .

[22]  M. Westoby,et al.  Opportunistic management for rangelands not at equilibrium. , 1989 .

[23]  M. Friedel Range condition assessment and the concept of thresholds: a viewpoint. , 1991 .

[24]  S. Vetter Rangelands at equilibrium and non-equilibrium: recent developments in the debate , 2005 .

[25]  Martin K. Luckert,et al.  Economic comparisons of livestock production in communal grazing lands in Zimbabwe , 2000 .

[26]  D. Coppock,et al.  Cattle population dynamics in the southern Ethiopian rangelands, 1980-97. , 2002 .

[27]  D. Ward,et al.  Perceptions and realities of land degradation in arid Otjimbingwe, Namibia. , 2000 .

[28]  N. M. Tainton Veld Management in South Africa , 1999 .

[29]  F. E. Egler Ecosystems of the World , 1960 .

[30]  Stephen Sandford,et al.  Management of Pastoral Development in the Third World , 1984 .

[31]  I. Scoones,et al.  Range Ecology At Disequilibrium: New Models Of Natural Variability And Pastoral Adaptation In African Savannas , 1994 .

[32]  T. O’Connor Composition and population responses of an African savanna grassland to rainfall and grazing , 1994 .

[33]  DeeVon Bailey,et al.  Livestock Pricing In The Northern Kenyan Rangelands , 2003 .

[34]  M. Hoffman,et al.  A fence-line contrast reveals effects of heavy grazing on plant diversity and community composition in Namaqualand, South Africa , 1999, Plant Ecology.

[35]  D. Coppock,et al.  Cattle Populations Dynamics in the Southern Ethiopian Rangelands , 2002 .

[36]  D. Briske,et al.  Vegetation dynamics on rangelands: a critique of the current paradigms , 2003 .

[37]  M. C. Rutherford Primary production ecology in southern Africa , 1978 .

[38]  J. McCabe,et al.  Drought and recovery: Livestock dynamics among the Ngisonyoka Turkana of Kenya , 1987 .

[39]  Michael B. Coughenour,et al.  Invited Synthesis Paper: Spatial Components of Plant-Herbivore Interactions in Pastoral, Ranching, and Native Ungulate Ecosystems , 1991 .

[40]  K. Homewood,et al.  Impact of drought on pastoral livestock in Baringo, Kenya 1983-85 , 1987 .

[41]  A. Ainslie When ‘community’ is not enough: Managing common property natural resources in rural South Africa , 1999 .

[42]  Susan Ringrose,et al.  Desertification in north-central Botswana: causes, processes, and impacts , 1996 .

[43]  R. Morgan Soil Erosion and Conservation , 1988 .

[44]  W. Bond,et al.  Why communal pastoralists do what they do in the Richtersveld National Park , 2004 .

[45]  S. Sandford 10. Improving the efficiency of opportunism: new directions for pastoral development , 1995 .

[46]  Rajiv Sethi,et al.  The Evolution of Social Norms in Common Property Resource Use , 1996 .

[47]  John G. McPeak,et al.  Contrasting income shocks with asset shocks: livestock sales in northern Kenya , 2004 .

[48]  G. Oba The effect of multiple droughts on cattle in Obbu, Northern Kenya , 2001 .

[49]  Sian Sullivan,et al.  People, plants and practice in drylands : socio-political and ecological dimensions of resource-use by Damara farmers in north-west Namibia , 1998 .

[50]  R. Scholes,et al.  Changes in herbaceous layer condition under contrasting land use systems in the semi-arid lowveld, South Africa☆ , 1997 .

[51]  Iain J. Gordon,et al.  Evaluation of strategies for tracking climatic variation in semi-arid grazing systems ☆ ☆ PII of original article S0308-521X(99)00068-2 , 1998 .

[52]  Steven Cheung The Structure of a Contract and the Theory of a Non-Exclusive Resource , 1970, The Journal of Law and Economics.

[53]  K. Homewood,et al.  Conservation in Africa: Pastoralism, conservation and the overgrazing controversy , 1988 .

[54]  C. Barrett,et al.  DECOMPOSING PRODUCER PRICE RISK: A POLICY ANALYSIS TOOL WITH AN APPLICATION TO NORTHERN KENYAN LIVESTOCK MARKETS , 2004 .

[55]  C. Kerven,et al.  Redesigning for risk: tracking and buffering environmental variability in Africa's rangelands , 1995 .

[56]  Revisited: the overstocking controversy in semi-arid Africa , 1996 .

[57]  T. O’Connor Transformation of a savanna grassland by drought and grazing , 1995 .

[58]  B. Walker,et al.  The Effects of Different Forms of Land Use on the Ecology of a Semi-Arid Region in South-Eastern Rhodesia , 1976 .

[59]  K. Arrow Inter-Generational Equity and the Rate of Discount in Long-Term Social Investment , 1999 .

[60]  B. Müller,et al.  Uncertainty and Sustainability in the Management of Semi-Arid Rangelands , 2005 .

[61]  I. Scoones Exploiting heterogeneity:habitat use by cattle in dryland Zimbabwe , 1995 .

[62]  Ian Scoones,et al.  New Ecology and the Social Sciences: What Prospects for a Fruitful Engagement? , 1999 .