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An evaluation of the empirical basis for grazing management recommendations for rangeland in southern Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J. O'Reagain --- Department of Agricultural Development (Eastern Cape Region), Republic of South Africa J.R. Turner --- Department of Grassland Science, Republic of South AfricaAnalysis of over 50 grazing experiments conducted in southern Africa does not support certain management recommendations. Furthermore, the conclusions of some experiments are questionable owing to poor experimental design or confirmation bias. Based on available evidence, it was concluded that... -
Reaction of three veld grasses to different schedules of grazing and resting. 1. Patterns of shoot growth
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.L. Barnes --- Department of Agriculture and Water Supply, Republic of South AfricaSeven defoliation treatments involving grazing at three-weekly intervals with sheep until mid-January or mid- March, or for the whole growing season, at each of two stocking rates, or resting for the whole growing season, were applied on veld during the... -
Reaction of three veld grasses to different schedules of grazing and resting. 2. Residual effects on vigour
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.L. Barnes --- Department of Agriculture and Water Supply, Republic of South AfricaSeven defoliation treatments involving grazing at intervals with sheep until mid-January or mid-March, or for the whole growing season at each of two stocking intensities, or resting for the whole growing season (control treatment) were applied on veld during the... -
Tackling 'the most avoided issue': communal rangeland management in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MI PedenDemocratisation in 1994 resulted in a shift in state focus from white commercial farmers to small-scale and subsistence black farmers living in communal areas in South Africa. The LandCare Program of the National Department of Agriculture aimed to improve productivity... -
Branchipodopsis species — specialists of ephemeral rock pools
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Brendonck ML Hamer BJ Riddoch MT SeamanThe anostracan Branchipodopsis genus is widespread throughout southern Africa and is the second most speciose anostracan taxon in this sub-continent. Branchipodopsis species are particularly dominant in small short-lived and clear rock pools, to the vagaries of which they are extremely... -
Effects of temperature and salinity on resting metabolism in two South African rock pool fish: the resident gobiid Caffrogobius caffer and the transient sparid Diplodus sargus capensis
Item type: Journal Article • Journal: African Zoology • Authors: J. O. G. Kemp [AN0001]Intertidal rock pools are inherently dynamic environments that experience marked changes in physico-chemical parameters over diel, tidal and seasonal time scales. Fish that inhabit the intertidal zone can generally be characterized as either permanent residents or transients/visitors. This study investigates... -
Differences in resting metabolic rates of two southern African tortoises: Psammobates oculiferus and Geochelone pardalis
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Michael Scantlebury --- University of Pretoria, South Africa Peter Minting --- Ayrshire Rivers Trust, UKEnergy metabolism varies considerably between different groups of endotherms, yet there is little or no reported variation among extant groups of reptiles. We measured lower resting metabolic rates (RMRs) in Kalahari tent tortoises (Psammobates oculiferus) than in sympatric Leopard tortoises... -
Agreement between measured energy expenditure and predictive energy equations in paediatric oncology
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: I Kellerman --- Stellenbosch University, South Africa M Kruger --- Stellenbosch University, South Africa J Schoeman --- Stellenbosch University, South Africa R Blaauw --- Stellenbosch University, South Africa