Rangeland Ecology & Management
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Displaying 251 - 286 of 286 results
- Library Collection RecordThe in vitro biological activity of nine frequently used medicinal plants in South Africa was assessed and re-assessed after various lengths of storage. The plants investigated were Alepidea…Publication Date 2005
- Antibacterial
- Anti-inflammatory
- medicinal plants
- storage
- Accelerated ageing
- South Africa
- Africa
- Library Collection RecordWe examined the relationship between the distribution of Martial Eagles Polemaetus bellicosus (and other large eagle species) breeding on electricity transmission pylons in the central and…Publication Date 2005
- Large eagles
- land management
- habitat quality
- conservation
- South Africa
- birds
- management
- rangeland condition
- landscape ecology
- ecosytem ecology
- Africa
- Library Collection RecordHabitat degradation through over-grazing and wood collection is especially prevalent in developing countries such as South Africa. As human populations expand and the demand for land increases, the…Publication Date 2005
- Lizards
- ecosystems
- disturbance
- reptiles
- biodiversity
- human impact
- savanna
- Traditional medicine
- South Africa
- degradation
- conservation
- land use
- species richness
- vegetation dynamics
- Africa
- Library Collection RecordThe replacement of indigenous grasslands by commercial forestry plantations on the mountainous eastern escarpment of South Africa, has inevitably led to alteration of nutrient cycling. The overall…Publication Date 2005
- soil nutrients
- soil ecology
- plants nutrition
- soil nutrition
- landscape ecology
- Pinus patula
- South Africa
- Eucalyptus grandis
- trees
- growth
- southern Africa
- Library Collection RecordUrban nature conservation issues in South Africa are overshadowed by the goal to improve human well-being, which focuses on aspects such as poverty, equity, redistribution of wealth and wealth…Publication Date 2004
- Biotope mapping
- Integrated research
- native vegetation
- Phytosociology
- Urban ecology
- grasslands
- South Africa
- decision support systems
- biodiversity
- land-use
- Africa
- Library Collection RecordThere is a pressing need for an objective, repeatable, systematic and spatially explicit measure of land degradation. In northeastern South Africa (SA), there are large areas of the former homelands…Publication Date 2004
- land degradation
- NDVI values
- rangelands
- South Africa
- degradation
- land use
- remote sensing
- rainfall
- ecosystem ecology
- Africa
- Library Collection RecordThe abundance and distribution patterns of four threatened species of bustards (Eupodotis caerulescens, E. barrowii, E. melanogaster and Neotis denhami) in 3200 km2 of montane grasslands in the…Publication Date 2004
- Bustards
- South Africa
- distribution patterns
- Conservation status
- grasslands
- birds
- land use
- biodiversity
- monitoring
- Africa
- Library Collection RecordMeasurements of surface ozone in the southern African region are limited to a few active and passive monitoring sites. Over the region, the mean surface ozone concentrations exhibit strong seasonal…Publication Date 2004
- Ozone
- Botswana
- South Africa
- Zimbabwe
- Zambia
- CAPIA
- Cape Point
- monitoring
- climate change
- Africa
- Library Collection RecordClimate, topography, vegetation and land use interact to influence fire regimes. Variable fire regimes may promote landscape heterogeneity, diversification in vegetation pattern and biotic diversity…Publication Date 2004
- Botswana
- Fire exclusion
- fire management
- Landsat
- landscape heterogeneity
- Landscape metric
- Patch characteristic
- prescribed fire
- Principal components analysis
- South Africa
- land use
- fire
- fire ecology
- grasslands
- climate
- vegetation dynamics
- biodiversity
- ecology
- Africa
- Library Collection RecordWhat is overgrazing? Does it cause soil erosion? The recent debate from the ecological literature is reviewed as background to the debate on overgrazing and soil erosion. This debate stresses the…Publication Date 2004
- soil erosion
- Over Grazing
- Communal lands
- equilibrium and non-equilibrium theory
- South Africa
- grazing
- communal farming
- Abandoned lands
- rangeland condition
- management
- Africa
- Library Collection RecordThe KwaZulu-Natal region of South Africa hosts a large diversity of asclepiads (Apocynaceae: Asclepiadoideae), many of which are endemic to the area. The asclepiads are of particular interest because…Publication Date 2003
- animals
- ecosystem
- Flowers/physiology/ultrastructure
- Gentianaceae/*physiology
- Hymenoptera/*physiology/ultrastructure
- microscopy
- Electron
- Scanning
- Poaceae/*physiology
- Pollen/*physiology/ultrastructure
- South Africa
- grasslands
- endemic species
- ecosystem ecology
- insects
- Africa
- Library Collection RecordThe Western Cape Province of South Africa has a long history of human occupation and utilisation; the impact of colonial settlement (late 17th century onwards) on agriculture has been especially…Publication Date 2003
- soil erosion
- soil conservation
- Land use policy
- Environmental history
- South Africa
- conservation
- land use
- agriculture
- degradation
- Africa
- Library Collection RecordIn many South African catchments, water is an increasingly limited and highly fluctuating resource. Accurate prediction of low flows is especially vital if water resource managers are to successfully…Publication Date 2003
- streamflow
- IHACRES
- land-use
- Rainfall-runoff model
- South Africa
- hydrology
- modelling
- rainfall
- decision support systems
- ecosystem ecology
- Africa
- Library Collection RecordIn southern African countries soil erosion and the related problems, such as water quality issues or decreasing soil productivity, are the main topics affecting the inhabitants of both rural and…Publication Date 2003
- gully erosion
- Erosion modelling
- Erosion Response Units
- Swaziland
- South Africa
- modelling
- soil erosion
- agriculture
- remote sensing
- Africa
- Library Collection RecordThis paper draws on recent empirical studies of changing land and water use in semi-arid Africa to identify socioeconomic and political dynamics and discusses their implications for current policy…Publication Date 2003
- Decentralization
- land tenure
- Mali
- Kenya
- Botswana
- South Africa
- land reform
- land use
- socio-economic aspects
- politics
- policies
- management
- Africa
- Library Collection RecordLittle is known regarding the effects of land use on soil organic matter status and earthworm communities in South African soils. For that reason the effects of the main agricultural land uses in the…Publication Date 2003
- earthworms
- Soil organic C
- microbial biomass
- pastures
- Arable crops
- forests
- Oxisols
- South Africa
- KwaZulu-Natal
- Soil Condition
- soil fertility
- invertebrates
- agriculture
- management
- land use
- Africa
- Library Collection RecordA study on grasshopper assemblage response to seasonal grazing, rotational grazing, continuous resting and continuous grazing was undertaken in the eastern Karoo, South Africa. Rotationally-grazed…Publication Date 2003
- seasonal grazing
- rotational grazing
- Karoo
- grasshoppers
- South Africa
- plant production
- insects
- grazing
- land use
- rangelands
- biodiversity
- Africa
- Library Collection RecordThe stable carbon isotope ratio of fossil tooth enamel carbonate is determined by the photosynthetic systems of plants at the base of the animal's foodweb. In subtropical Africa, grasses and…Publication Date 2003
- Australopithecines
- South Africa
- carbon isotopes
- diet
- C4 plants
- palaeobotany
- Africa
- Library Collection RecordSr and Ba levels of two proximal aragonite speleothems from Cold Air Cave, South Africa, are examined at [mu]m resolution. A compositional map derived from parallel secondary ion mass spectrometry…Publication Date 2003
- South Africa
- Cold Air Cave
- Speleothem
- SIMS
- ion probe
- palaeoenvironments
- palaeobotany
- rainfall
- Africa
- Library Collection RecordThe following dissertation sets out to investigate the decline of agriculture in Mission location at Butterworth, Transkei, using the Rehabilitation Scheme as a benchmark. The scheme was introduced…Publication Date 2003
- agriculture
- South Africa
- Transkei
- land use
- land tenure
- soil erosion
- politics
- policies
- communal farming
- southern Africa
- Library Collection RecordThe microscopic charcoal content of several Quaternary pollen sequences is used to investigate fire history in South Africa both during the Holocene and the Late Pleistocene. Although fluctuations in…Publication Date 2002
- microscopic charcoal
- pollen sequences
- fire history
- Iron Age
- Quaternary
- South Africa
- palaeobotany
- Africa
- Library Collection RecordLantana camara (lantana), a thicket-forming shrub, a number of different varieties of which were introduced into South Africa as ornamental plants but which has become a serious invasive weed.…Publication Date 2002
- Biological pest control
- South Africa
- Lantana camara
- Beetles
- Hemiptera
- Weeds
- Alien invasive species
- biological control
- modelling
- southern Africa
- Library Collection RecordWith an increased emphasis on the tangible demonstration of the socio-economic benefits of research the need arises for impact evaluation. Impact assessment is a form of evaluation that deals with…Publication Date 2001
- impact
- indicators
- Social
- economic
- South Africa
- Africa
- Library Collection RecordThe diminishing wilderness areas remaining in southern Africa offer opportunities to establish and market ecotourism destinations. It would thus be useful to gain insight into what conditions make…Publication Date 2001
- eco-tourism
- economic viability
- local communities
- environmental impacts
- Ongoye Forest
- South Africa
- Economic Aspects
- modelling
- Africa
- Library Collection RecordMultivariate analyses and complementarity-based reserve selection algorithms were used as tools for delimiting representative conservation areas in KwaZulu-Natal, South Africa, based on environmental…Publication Date 2001
- birds
- climate
- Conservation area selection
- Pattern and process
- ordination
- spatial autocorrelation
- South Africa
- conservation
- modelling
- land use
- data analysis
- Africa
- Library Collection RecordA number of methodological approaches to understanding and quantifying the potential impacts of changes in macroeconomic and sectoral policies on the natural resource environment have been developed…Publication Date 2000
- Farming practices
- Economic policy
- Environmental indicators
- South Africa
- policies
- Economic Aspects
- decision support systems
- agriculture
- Africa
- Library Collection RecordRecent political transformation in South Africa has laid the basis for significant socioeconomic change. One area in which the greatest socioeconomic disparities are discernable is the agricultural…Publication Date 1999
- agriculture
- Resettlement
- Rural development
- South Africa
- socio-economic aspects
- subsistence agriculture
- commercial agriculture
- economics
- Africa
- Library Collection RecordRecent political changes in South Africa have required a new approach to project management, one that includes community involvement at all levels of project planning, decision-making and execution.…Publication Date 1998
- Mier Rural Area
- Kalahari
- South Africa
- desertification
- Community involvement
- rangeland degradation
- rangeland rehabilitation
- rangeland condition
- rangelands
- degradation
- rehabilitation
- management
- community based resource management
- socio-economic aspects
- decision support systems
- stakeholders
- Africa
- Library Collection RecordA recently published rangeland health assessment guide for arid shrublands of the Karoo, South Africa, addresses the problem of apathy toward rangeland. The guide is designed for land users with a…Publication Date 1998
- rangeland health assessment guide
- South Africa
- shrublands
- Karoo
- rangelands
- decision support systems
- Soil Condition
- animal production
- plant production
- ecology
- management
- Africa
- Library Collection RecordA history ofland degradation is reconstructed in a part of the dividing ridge between the Great Fish and Keiskamma rivers, in Peddie District, former Ciskei. The study entails a comparative…Publication Date 1997
- land use
- Eastern Cape
- South Africa
- erosion
- degradation
- Tenure
- land use
- Subsistence farming
- Commercial farming
- Traditional management
- betterment villages
- Aerial Photographs
- GIS
- southern Africa
- Library Collection RecordIn 1989, the opportunity was identified to create a botanical map series which could be used by authorities to make informed decisions and which would highlight the potential impact significance of…Publication Date 1996
- mapping
- conservation
- vegetation
- Coast
- South Africa
- development
- GIS
- management
- Africa
- Library Collection RecordIn the process of dredge mining, employed since 1977 on the Zululand coast, heavy minerals are extracted from the dunes after the complete removal of the existing vegetation. The tailings are then…Publication Date 1996
- Post-mining
- rehabilitation
- Dunes
- Zululand
- South Africa
- mine rehabilitation
- restoration ecology
- vegetation dynamics
- data analysis
- species richness
- Africa
- Library Collection RecordSpatio-temporal variation in dung beetle distribution and cattle dung dispersal was quantified across a spectrum of summer rainfall habitat types in South Africa, i.e. grassland, open woodland and…Publication Date 1996
- Australia
- dung
- Pasture Improvement
- Scarabaeidae
- South Africa
- dung beetles
- ecosytem ecology
- soils
- rangeland condition
- rainfall
- grasslands
- Africa
- Library Collection RecordMethods used in the analysis of 1163 pieces of charcoal from Elands Bay, South Africa, are described. Results from three archaeological sites (Tortoise Cave, Spring Cave and Mike Taylors Midden) show…Publication Date 1992
- South Africa
- Elands Bay
- Holocene
- environment
- charcoal
- palaeobotany
- Africa
- Library Collection RecordNo abstract availablePublication Date 1991
- biodiversity
- ecosystem ecology
- conservation
- South Africa
- Africa
- Library Collection RecordAbstract Soil-stored seed banks of grassland, fynbos and thicket, all growing on calcareous dunes and each subject to different disturbance regimes, were examined. Seed banks were determined from…Publication Date 1991
- Fynbos
- grasslands
- ordination
- South Africa
- succession
- Thicket
- Bond & Goldblatt (1984)
- seed banks
- germination
- disturbance
- biodiversity
- Africa
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