The Natural Cycles of Grazing Ungulates

Article: Ecology of a Grazing Ecosystem: The Serengeti Authors: McNaughton, S.J. Journal: Ecological Monographs, 55(3) 1985, pp. 259-294 In previous posts, we have analyzed research dealing with spatial heterogeneity on the landscape.  Sometimes spatial heterogeneity is a desirable management objective, … Continue reading

Utilization and Multi-Species Grazing in the African Serengeti

Article: Ecology of a Grazing Ecosystem: The Serengeti Authors: McNaughton, S.J. Journal: Ecological Monographs, 55(3) 1985, pp. 259-294 McNaughton’s research also sheds light on the proportions of utilization and the effects of multiple ungulate species harvesting biomass from the same … Continue reading

Plant Productivity and Compensatory Growth

Article: Ecology of a Grazing Ecosystem: The Serengeti Authors: McNaughton, S.J. Journal: Ecological Monographs, 55(3) 1985, pp. 259-294 As noted, the relationships between grazers, grasses, and other biota are complex and highly connected.  The research of Samuel J. McNaughton has … Continue reading

Grazing ungulates, plant biomass concentrations, and nutrient cycling

The evolutionary ecologist S.J. McNaughton is well-known as a strong advocate of the grazing optimization hypothesis.  Essentially, this hypothesis is summarized as follows: …grazing benefits many grasses and other plants in grassland ecosystems… moderate grazing promotes the productivity of many … Continue reading

Grazing: The Spatial Dimension

Landscapes are not uniform in time or space.  Estimated stocking rates tend to be conservative, and on the low side, often in attempt to account for sites that are susceptible to deterioration and overgrazing.  But these conservative estimates and a … Continue reading

The Charter Trials: A Slide Show

This series of slides condenses the most salient points of the Charter Estate Grazing Trials into a series of charts and graphs.  If you are looking to understand the fundamental points of the Charter Trials in a concise, visual format, … Continue reading

The Charter Trials: Botanical Analysis

Article: The Charter Estate Grazing Trial Results of the Botanical Analysis Author: Clatworthy, J.N. Published: Zimbabwe Journal of Agricultural Research (1984), Vol. 81 (2) In implementing the Charter Grazing Trials, changes in vegetation were carefully monitored to detect changes in … Continue reading

The Charter Trials: Animal Production and Management

Article: The Charter Estate Grazing Trial Animal Production And Management Author: Worthington, D.K. Published: Zimbabwe Journal of Agricultural Research (1984), Vol. 81 (2) The Charter Trials were a seven year study conducted on the 2,500 ha Charter Estate by Allan … Continue reading

South Africa and Intensive Short Duration Grazing

Article: Southern Africa’s Experience with Intensive Short Duration Grazing Authors: Skovlin, J. Published: Rangelands 9(4), August 1987 This paper points to previous research by Tainton that highlights the tension between utilization and animal performance.  In some cases where stocking rates … Continue reading