Rangeland Ecology & Management
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- Library Collection RecordThe African Wildlife Foundation (AWF) has developed and applied a landscape-scale conservation planning methodology in eight priority conservation landscapes in Africa, areas we call African…Publication Date 2009
- conservation
- biodiversity
- stakeholders
- socio-economic aspects
- 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 this volume in honour of John Rogers we propose a new way of looking at Gondwana and we urge our colleagues everywhere to join us in this venture. The Gondwana Alive Corridors provide a way of…Publication Date 2003
- Gondwana Alive Corridors
- Sixth Extinction
- biodiversity
- consilience
- Earth System Science
- palaeobotany
- ecology
- Africa
- Library Collection RecordThe paper analyses land use trajectories in savannah woodlands in the Central-West Region, Burkina Faso and the Upper East Region in northern Ghana by use of satellite images and historical archives…Publication Date 2003
- deforestation
- remote sensing
- Colonial history
- Land cover changes
- Ghana
- Burkina Faso
- socio-economic aspects
- land-use
- legislation
- ecosystem ecology
- Africa
- Library Collection RecordIntensification of agriculture in the tropics has resulted from a shortage of farmland and insufficient food production to satisfy the needs of an expanding population. Many tropical farmers are…Publication Date 1997
- Decomposition
- Decomposer biota
- biodiversity
- soil fertility
- Agricultural intensification
- Biotic interactions
- Ecosystem function
- Africa
- Library Collection RecordThe community structure and abundance of plant-feeding nematodes were studied in four grasslands, which had not been fertilised for 6, 10, 23, and 28 years, respectively. We hypothesised that…Publication Date 2001
- body size
- Feeding strategy
- Food quality
- nematodes
- soil fertility
- succession
- grasslands
- fertilizer
- invertebrates
- ecosystem ecology
- soil nutrients
- Africa
- Library Collection RecordThis paper argues that, at present, ecotourism can contribute to safeguard biodiversity and ecosystem functions in developing countries, even though meeting the requirements for ecotourism is…Publication Date 1999
- biodiversity
- cost-benefit analysis
- Ecosystem functions
- eco-tourism
- Rainforests
- ecosystem dynamics
- ecosystem services
- conservation
- Africa
- Library Collection RecordSouth Africa is rich in biological diversity, but measures to conserve this heritage are under-funded and are of relatively low priority at national level. Part of the problem is that the social…Publication Date 2003
- Value of biodiversity
- contingent valuation
- Fynbos
- climate change
- biodiversity
- socio-economic aspects
- Africa
- Library Collection RecordWe contend diets and habitats that allow animals to select among alternatives enable individuals to better meet needs for nutrients and to better cope with toxins. All plants contain toxins, and the…Publication Date 2003
- foraging ecology
- herbivory
- biodiversity
- conservation biology
- toxins
- diet selection
- toxicity
- nutrition
- grazing
- Africa
- Library Collection RecordNatural products are becoming more important in modern-day society as man is moving away from synthetic products, which can be detrimental to the environment and human health. Scientific research on…Publication Date 2002
- Traditional healing
- Ethnobotany
- Amaryllidaceae
- Hyacinthaceae
- Bulbs
- medicinal plants
- biodiversity
- Africa
- Library Collection RecordThe overall effects of fire on ecosystems are complex, ranging from the reduction or elimination of aboveground biomass to impacts on belowground physical, chemical and microbial mediated processes.…Publication Date 1999
- fire
- soils
- physical properties
- Microbial ecology
- nutrients
- organic matter
- fire ecology
- sustainability
- Soil Condition
- vegetation dynamics
- ecosystem ecology
- Africa
- Library Collection RecordMosaics of natural forest and grassland tracts in sub-Saharan Africa provide differences in woody species biodiversity. These mosaics are of considerable interest as they are a major biodiversity…Publication Date 2002
- biodiversity
- Shannon index
- tropical forest
- grassland
- burning
- spatial variability
- Uganda
- grasslands
- fire ecology
- management
- Africa
- Library Collection RecordEast Africa contains areas with some of the greatest large mammal biodiversity on the planet. These areas are key natural resources for the economic development of the region. They are also key areas…Publication Date 2003
- Agro-pastoralism
- savanna
- simulation
- Dietary energy
- cash flow
- Ngorongoro Conservation Area
- pastoralism
- cattle
- game farming
- biodiversity
- socio-economic aspects
- ecosystem dynamics
- modelling
- household income studies
- Africa
- Library Collection RecordWe tested the potential of artificial neural networks (ANNs) as predictive tools in ecology. We compared the performance of ANNs and regression models (RM) in predicting ecosystems attributes, with…Publication Date 1997
- aboveground net primary production
- Artificial neural networks
- grasslands
- normalized difference vegetation index
- prediction
- Regression models
- remote sensing
- ecosystem ecology
- NDVI values
- Africa
- Library Collection RecordThe metaphysiological modelling approach relates aggregated population dynamics to biomass gained from resources consumed, relative to physiological attrition and mortality losses. A GMM (Growth,…Publication Date 2002
- Consumer-resource dynamics
- Herbivore-vegetation systems
- Metaphysiological modelling
- seasonality
- animal production
- diet selection
- modelling
- ecosystem ecology
- Africa
- Library Collection RecordInteractions between fire regime, dispersal strategies and patch structure were examined as key issues for the management of floristic composition of grasslands, through a model that simulates the…Publication Date 2001
- grasslands
- fire management
- fire frequency
- Dispersal strategies
- colonization
- simulation model
- grassland
- fire ecology
- management
- vegetation dynamics
- biodiversity
- modelling
- seeds
- Africa
- Library Collection RecordFocusing on the issue of veldt degradation and grazing pressure on rangelands, a simplified model was constructed for a sustainable stocking rate (SR) evaluation of the complex system of semi-arid…Publication Date 1999
- stocking rates
- mixed grazing
- modelling
- Arid and sub-humid regions
- grazing
- degradation
- management
- decision support systems
- biodiversity
- traditional knowledge
- ecosystem ecology
- conservation
- foraging ecology
- Africa
- Library Collection RecordGiven current population trends and projections in sub-Saharan Africa, it is anticipated that substantial intensification of agricultural cropland is certain within the next decades. In the absence…Publication Date 2002
- climate
- conservation
- Livelihoods
- socio-economic aspects
- ecology
- biodiversity
- legislation
- Communal areas
- subsistence agriculture
- sustainble development
- Africa
- Library Collection RecordChanges in litter production following back and head fires, some soil characteristics and root and litter turnover were quantified over two growing seasons for a semi-arid grassland. Sampling of…Publication Date 2005
- fire ecology
- grasslands
- Soil Condition
- soil moisture
- ecosystem ecology
- Africa
- Library Collection RecordThe role of herbivores in controlling plant species richness is a critical issue in the conservation and management of grassland biodiversity. Numerous field experiments in grassland plant…Publication Date 1998
- herbivores
- grassland
- diversity
- species richness
- environmental gradients
- grasslands
- biodiversity
- conservation
- management
- livestock
- soil fertility
- rainfall
- ecosystem ecology
- Africa
- Library Collection RecordIt has long been recognized that alternative vegetation states may occur in terrestrial grazing systems. This phenomenon may be of great importance as small environmental fluctuations may lead to…Publication Date 1997
- vegetation dynamics
- grazing
- grasslands
- ecosystem ecology
- degradation
- Africa
- Library Collection RecordAbstract not available.Publication Date 2000
- Mkomazi
- Game Reserve
- ecology
- conservation
- biodiversity
- savanna
- Africa
- Library Collection RecordA vegetation survey of road verges along an urban to rural gradient in the Potchefstroom Municipal Area was conducted. Important applications of these studies include understanding of the role of…Publication Date 2000
- Braun-Blanquet approach
- Dispersal corridors
- roadside vegetation
- vegetation analysis
- ecosystem ecology
- management
- biodiversity
- Africa
- Library Collection RecordPolycultural agroecosystems, such as rangelands, are too complex and poorly understood to permit precise numerical simulation. Management decisions that depend on behavioral predictions of such…Publication Date 1996
- Case-based reasoning (CARMA)
- Model-based reasoning
- prediction
- ecosystem
- Reasoning paradigms
- pest management
- rangelands
- ecosystem ecology
- modelling
- ecosystem dynamics
- management
- decision support systems
- Africa
- Library Collection RecordThe species composition of grazing lands can be influenced by livestock and grazing pressure. A study on manure seed bank was conducted in Ghinchi highland Research Site in Ethiopia between 1995 and…Publication Date 2000
- manure
- species
- Life-form
- livestock
- seed banks
- biodiversity
- grazing
- species richness
- grasslands
- germination
- soil fertility
- management
- Africa
- Library Collection RecordLand-use practices can impact on bird populations. This study set out to explain why the helmeted guineafowl, Numida meleagris (Linnaeus 1766; Aves: Numididae) declined in the Midlands of KwaZulu-…Publication Date 1999
- Helmeted guineafowl
- Land-use patterns
- Pesticides
- Maize agriculture
- KwaZulu-Natal
- Edge distance
- birds
- conservation
- biodiversity
- savanna
- land use
- Africa
- Library Collection RecordAn experiment designed to study the effects of habitat fragmentation on biological diversity in the montane grasslands of Southern Africa was launched in September 1994. The Groenvaly experiment is…Publication Date 1998
- grasslands
- Fragmentation experiment
- Pinus elliotti
- Groenvaly
- biodiversity
- vegetation dynamics
- invasive plants
- monitoring
- conservation
- Africa
- Library Collection RecordEnvironmental weeds are an escalating problem worldwide. Integrated control is unable to keep up with the demands for management strategies for existing and new, potentially invasive plant species.…Publication Date 1998
- Environmental weeds
- management
- Priority areas
- surveys
- integrated control
- rehabilitation
- Weeds
- Alien invasive species
- ecosystem ecology
- conservation
- 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 RecordTransformation of natural vegetation to other land-uses, such as crop cultivation and urban development, presents the most important threat to biodiversity. Plant and animal species distribution data…Publication Date 2003
- Land transformation
- Biodiversity risk
- arable land
- conservation
- species richness
- biodiversity
- land reform
- land use
- policies
- management
- Africa
- Library Collection RecordGlobal debates surrounding the management of natural resources in protected areas advocate greater involvement of local populations in order to maintain sustainable resource use and conserve…Publication Date 2001
- Botswana
- Livelihoods
- natural resources
- protected areas
- sustainability
- management
- national parks
- biodiversity
- socio-economic aspects
- Africa
- Library Collection RecordTo test the effects of shade on understorey herbaceous productivity in tropical savannas, water relations of important grass species that either grow primarily under tree crowns or in open grasslands…Publication Date 1995
- Cynodon n1emfuensis
- Digitaria macroblephara
- Eustachyspaspaloides
- irradiance
- Panicum maximum
- rainfall-use efficiency
- stomatal conductance
- Tropical grasses
- water potential
- vegetation dynamics
- ecosystem ecology
- Africa
- Library Collection RecordThe impact of ecological factors such as changes in rainfall could lead to large compositional changes in the diverse indigenous flora of southern Africa. A study was therefore initiated to determine…Publication Date 1995
- vegetation
- rainfall increase
- rainfall decrease
- southern Africa
- rainfall
- species richness
- biodiversity
- drought
- grazing
- vegetation dynamics
- Africa
- Library Collection RecordAspects of the relationships between the plants and the flower-visiting insects of the north-western Cape, South Africa, based upon a 3-year study on permanent plots, are examined. The vast majority…Publication Date 1994
- anthophilous insects
- Apoidea
- Asteraceae
- Bombyliidae
- flower visitation behaviour
- Mesembryanthemaceae
- masarine wasps
- melittophily
- Namaqualand broken veld
- pollen loads
- ecosystem ecology
- insects
- Africa
- Library Collection RecordDistribution patterns were examined at both regional and local scales for an entire species assemblage of dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) from the margins of the semi-arid Nama…Publication Date 2004
- Assemblage
- Dune
- dung
- Edge
- Kalahari
- Karoo
- Local
- range
- dung beetles
- rainfall
- ecosystem ecology
- Africa
- Library Collection RecordDuring the dormant winter period the semi-arid rangeland areas of South Africa are characterized by unplanned fires, either by lightning or negligence by man. The quantification of the impact of…Publication Date 2004
- Above-ground phytomass production
- basal cover
- Crude Protein Content
- Grass sward recovery
- Head fire
- litter
- rain-use efficiency
- root mass
- fire ecology
- rangelands
- plant production
- vegetation dynamics
- ecosystem ecology
- management
- Africa
- Library Collection RecordSemi-arid rangelands, which have retrogressed beyond a certain threshold and could not rest-recover, can only be restored by mechanical inputs helping the re-establishment of vegetation. Therefore,…Publication Date 2003
- degradation
- Hollows
- Mechanical implements
- restoration
- Rip action
- Species composition and density
- Walking-stick planter
- rangeland condition
- restoration ecology
- species richness
- biodiversity
- Soil Condition
- Africa
- Library Collection RecordUnplanned fires are a natural phenomenon in southern African rangelands. The influence of fire on soil characteristics (soil-water content, soil compaction, soil temperature, infiltration ability,…Publication Date 2003
- Head fire
- Infiltrability
- Organic Matter Content
- soil compaction
- soil temperature
- Soil-water content
- soil properties
- fire ecology
- rangeland condition
- Soil Condition
- disturbance
- soil moisture
- ecosystem ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 1970
- grasslands
- ecology
- biodiversity
- southern Africa
- Library Collection RecordThe biodiversity convention aims at conserving biodiversity and guaranteeing fair and sustainable human use of biodiversity. The convention further requires that the causes of biodiversity decline…Publication Date 1999
- biodiversity
- climate change
- Earth system modelling
- global change
- Scenarios
- land use
- modelling
- Africa
- Library Collection RecordSavanna ecosystems are water limited and responsive to rainfall on short time scales, characteristics that can be exploited to estimate fractional cover of trees, grass, and bare soil over large-…Publication Date 2002
- savanna
- ecosystem ecology
- rainfall
- remote sensing
- NDVI values
- soils
- Africa
- Library Collection RecordThe amount and quality of inputs into soil organic matter will be altered by both climate and landuse change. The increase in growth of plants caused by increasing CO2 concentration implies not only…Publication Date 1997
- elevated carbon dioxide
- Decomposition
- organic residues
- secondary chemicals
- soil organic carbon
- climate change
- land use
- plant autecology
- carbon dioxide
- modelling
- ecosystem dynamics
- ecosystem ecology
- plant production
- management
- Africa
- Library Collection RecordAlteration of land use will continue to be the dominant driver of environmental change in the tropics for the next several decades. It can take the form of fundamental vegetation cover transformation…Publication Date 1997
- global change
- tropical ecosystems
- Land cover
- climate
- atmosphere
- land use
- landscape ecology
- management
- climate change
- ecosystem ecology
- Africa
- Library Collection RecordWhere species distribution data are inadequate reserve selection procedures have to rely on surrogate measures of biodiversity. The informativeness of land facets (the simplest units of a landscape…Publication Date 1999
- biodiversity
- Surrogates
- Land facets
- Reserve selection
- Priority conservation areas
- conservation
- species richness
- land use
- ecosystem ecology
- Africa
- Library Collection RecordLarge-scale afforestation with pines is taking place in montane grasslands of South Africa. Many species dependent on the grass sward will be eliminated from the planted areas. Land should be…Publication Date 1999
- commercial afforestation
- Afromontane
- endemicity
- land type
- species richness
- biodiversity
- birds
- Africa
- Library Collection RecordDifferences in reporting rates of birds on atlas checklists from major land-use categories (protected, unprotected, wildlife management area (WMA)) in Botswana were investigated to evaluate the…Publication Date 1998
- Botswana
- Bird conservation
- land use
- overgrazing
- Atlas-data
- biodiversity
- grasslands
- conservation
- Africa
- Library Collection RecordThe grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the…Publication Date 1998
- Sub-Antarctic
- introduced plants
- Soil fauna
- species richness
- conservation
- Alien invasive species
- biodiversity
- ecology
- Africa
- Library Collection RecordNomadic larks in the semi-arid Nama-Karoo, South Africa, depend on patches of temporally suitable habitat for breeding. These patches occur where rain has recently fallen, where there has been growth…Publication Date 1998
- semi-arid
- Nomadic birds
- modelling
- Patchy environment
- Stochastic environment
- Protected area design
- biodiversity
- birds
- conservation
- ecosystem ecology
- Africa
- Library Collection RecordIn the savanna biome of southern Africa, introduced mesquite species have transformed at least 200,000 ha in the northern Cape Province of South Africa and could have a significant effect on insect…Publication Date 1996
- mesquite
- invasive plant
- Bush encroachment
- Scarabaeidae
- rare species
- savanna
- Alien invasive species
- insects
- management
- ecosystem ecology
- Africa
- Library Collection RecordMontane grasslands in high rainfall areas of South Africa are subject to large-scale afforestation, making wildlife conservation evaluations necessary. A system which uses landscape features to…Publication Date 1997
- bird
- butterfly
- endemic
- grasshopper
- species richness
- biodiversity
- savanna
- conservation
- soil classification
- Africa
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