Rangeland Ecology & Management
Get reliable science
Toggle Search
Result Type
Collection
Keywords
Document Type
Displaying 51 - 100 of 2536 results
- Library Collection RecordFlood depth has been frequently used to explain the distribution of plant species in seasonally flooded grasslands, but its relation with vegetation production has remained ambiguous. The…Publication Date 2007
- grasslands
- plant production
- hydrology
- plant autecology
- Africa
- Library Collection RecordSystematic conservation planning is widely considered the most effective approach for designing protected area and other ecological networks. However, many conservation practitioners still ignore…Publication Date 2006
- conservation
- management
- biodiversity
- Economic Aspects
- Africa
- Library Collection RecordThis paper documents a continuous ~ 44,000-yr pollen record derived from the Mfabeni Peatland on the Maputaland Coastal Plain. A detailed fossil pollen analysis indicates the existence of extensive…Publication Date 2008
- climate change
- Forest history
- Maputaland
- Africa
- pollen
- human impacts
- palaeobotany
- Africa
- Library Collection RecordSummary Community-based natural resource management (CBNRM) remains a popular policy with many international funding institutions, in spite of growing evidence of its disappointing outcomes. It is…Publication Date 2006
- community-based natural resource management
- central and southern Africa
- Africa
- Library Collection RecordSummary In this paper, we draw upon models from ecology and New Institutional Economics to examine the various mechanisms through which globalization can lead to loss in resilience of ecosystems and…Publication Date 2006
- Poverty
- Globalization
- environment
- ecosystem
- resilience
- institutions
- semi-arid savanna
- socio-economic aspects
- economics
- Africa
- Library Collection RecordHistorically, agriculturally induced CO2 release from soils has contributed to rising levels in the atmosphere. However, by using appropriate management, soils can be turned into carbon sinks. Many…Publication Date 2007
- carbon sequestration
- drylands
- modelling
- soil carbon
- farming systems
- tropics
- global warming
- carbon dioxide
- management
- subsistence agriculture
- socio-economic aspects
- Africa
- Library Collection RecordSoil erosion and subsequent degradation has been a contributor to societal collapse in the past and is one of the major expressions of desertification in arid regions. The revised universal soil loss…Publication Date 2008
- Arid and semi-arid regions
- cryptobiotic soil crusts
- cryptogams
- Cyanobacteria
- Erosion modeling
- Universal Soil Loss Equation
- Africa
- Library Collection RecordResidues of arbuscular mycorrhizal fungi (AMF) may be important for agroecosystem functioning due to their ability to promote soil aggregation, especially in coarse textured soils with little biomass…Publication Date 2007
- soil organic matter
- Glomalin
- arbuscular mycorrhizal fungi
- Biomarker
- Arable land use
- savanna
- soils
- ecosystem ecology
- plant production
- Africa
- Library Collection RecordSoil texture is an important influence on nutrient cycling in upland soils, with documented relationships between mineral particle size distribution and organic matter retention, nitrogen (N)…Publication Date 2006
- soil texture
- N mineralization
- riparian soils
- Phugwane River
- Kruger National Park
- Soil Condition
- ecology
- soil organic carbon
- soil fertility
- Africa
- Library Collection RecordIn the low-rainfall areas of much of Africa and Asia, small ruminants represent the principal economic output, contributing a large share of the income of farmers. Animal numbers have increased over…Publication Date 2008
- small ruminants
- Feeding strategies
- Cereal crop residues
- Agro-industrial by-products
- Fodder shrubs
- Dry environment
- technology adoption
- Africa
- Library Collection RecordThis paper deals with the effects of farming systems linked to feeding aspects on the composition and quality of ewe and goat milk. When systems based on grazing and indoor systems are compared, the…Publication Date 2007
- Dairy goat
- Dairy sheep
- milk composition
- Milk quality
- System of production
- pasture
- Feeding system
- goats
- forage quality
- fodder quality
- animal nutrition
- animal production
- Africa
- Library Collection RecordThe morphometrics of mandible and teeth of mixed-breed goats on rangeland were analyzed to investigate the association between the oral apparatus and diet type. Canonical relationship between sets of…Publication Date 2007
- diet
- grazing
- Mandible
- Jaw
- Incisor
- Molar teeth
- goats
- rangelands
- diet selection
- forage quality
- foraging ecology
- Africa
- Library Collection RecordEthnobotanical field studies in the Graaff-Reinet and Murraysburg regions (southeastern Karoo) have revealed a wealth of traditional knowledge on medicinal plants and their uses amongst elderly…Publication Date 2008
- Cape Dutch culture
- Ethnobotanical survey
- Khoi-San culture
- medicinal plants
- Phytotherapy
- Southeastern Karoo
- Africa
- Library Collection RecordThis paper reviews the results of recent research on riparian vegetation recovery following the clearance of invasive alien plants. In Fynbos, Grassland and Savanna Biomes, riparian ecosystems were…Publication Date 2008
- Alien vegetation control
- fire
- Fynbos
- grassland
- biological invasions
- restoration
- riparian ecosystems
- savanna
- seed banks
- Alien invasive species
- management
- restoration ecology
- ecosystem ecology
- ecosystem services
- Africa
- Library Collection RecordIn 1998, a restoration field trial was initiated in a catchment near Wellington (Western Cape, South Africa) to determine whether fynbos riparian scrub vegetation cleared of woody invasive alien…Publication Date 2008
- biological invasions
- fire
- Follow-up treatment
- management
- restoration ecology
- Alien invasive species
- seeds
- biodiversity
- Africa
- Library Collection RecordInvasion by alien woody species is a major threat to biodiversity and ecosystem function in the Fynbos and Grassland Biomes of South Africa, and riparian areas are particularly affected. Large stands…Publication Date 2008
- Acacia longifolia
- Grassy fynbos
- invasive alien plants
- riparian vegetation
- Africa
- Library Collection RecordRecovery of indigenous species subsequent to the clearing of invasive alien plants (IAPs) is crucial for ecosystem recovery to occur. However, cleared sites are often just left in the hope that…Publication Date 2008
- biological invasions
- Ecosystem repair
- exotic plants
- diversity
- resilience
- restoration
- Working for Water
- Alien invasive species
- ecosystem dynamics
- monitoring
- restoration ecology
- management
- Africa
- Library Collection RecordWorking for Water forms part of the Expanded Public Works Programme of the South African Government, aimed at the sustainable management of natural resources through the control and management of…Publication Date 2008
- Clearing unit reference values
- costs
- invasive alien plants
- net present value
- Person days
- riparian
- WIMS
- Workload
- Alien invasive species
- Economic Aspects
- management
- socio-economic aspects
- Africa
- Library Collection RecordThe impacts of invasive alien plants (IAP) and their subsequent clearing by the Working for Water Programme (WfW) on (a) overstorey (woody plant) vegetation structure, (b) invasion intensity (…Publication Date 2008
- biological invasions
- Ecosystem repair
- grasslands
- Overstorey aerial cover
- restoration ecology
- savannas
- Africa
- Library Collection RecordSolanum mauritianum Scopoli (Solanaceae; 'bugweed') is a major weed of natural vegetation and plantations in the eastern higher rainfall regions of South Africa. This study assessed the…Publication Date 2008
- Ecosystem repair
- integrated control
- non-native species
- restoration ecology
- weed management
- Working for Water
- Alien invasive species
- ecosystem ecology
- hydrology
- grasslands
- savanna
- herbicides
- seed banks
- germination
- Africa
- Library Collection RecordRiparian zones are complex disturbance-mediated systems that are highly susceptible to invasion by alien plants. They are prioritized in most alien-plant management initiatives in South Africa. The…Publication Date 2008
- biological invasions
- Community recovery
- invasive alien plants
- restoration ecology
- Soil-stored seeds
- species assemblages
- seed banks
- Alien invasive species
- disturbance
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- biodiversity
- grasslands
- Alien invasive species
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- conservation
- management
- ecosystem dynamics
- grasslands
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- fire ecology
- management
- conservation
- national parks
- Africa
- Library Collection RecordTraditional health care is utilized by a large majority of the population in southern Africa. This is particularly true of treatment for mental health problems. A large part of the treatment regimes…Publication Date 2007
- Anxiety disorder
- depression
- Monoamine oxidase
- Parkinson's disease
- Traditional medicine
- medicinal plants
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- soils
- soil fertility
- national parks
- ecosystem ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- grasslands
- urban environment
- rurla environment
- ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- seed banks
- Alien invasive species
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- grasslands
- ecosystem ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- carbon dioxide
- savanna
- climate change
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- hydrology
- management
- ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- Africa
- Library Collection RecordCactoblastis cactorum, a phycitid moth, has been used with considerable success as a biological control agent against several different cactus species in many parts of the world, including Opuntia…Publication Date 2007
- Alien invader
- biological control
- Canonical Community Analysis
- weed
- Alien invasive species
- Africa
- Library Collection RecordOpuntia stricta (Cactaceae), an alien weed, has invaded an area of more than 35 000 ha in the Skukuza region of the Kruger National Park [KNP]. The distribution of the plant and features of the…Publication Date 2007
- Alien invader
- Cactoblastis cactorum
- Canonical Community Analysis
- Environmental correlates
- weed
- Alien invasive species
- Africa
- Library Collection RecordOpuntia is a drought tolerant crop and even the smallest amount of water is absorbed efficiently through the shallow and horizontally spread root system. However, there is a lack of knowledge on the…Publication Date 2006
- Cactus pear
- Root/cladode mass
- root distribution
- root length
- fodder production
- water use efficiency
- drought
- Africa
- Library Collection RecordA vegetation survey of natural grasslands was undertaken in the urban areas of Gauteng, supporting about 20% of the country's population. Relevés were compiled in 132 sample plots placed in…Publication Date 2006
- grasslands
- South Africa
- vegetation
- Gauteng
- ecology
- Africa
- Library Collection RecordDegradation in arid and semi-arid regions can be ascribed primarily to environmental conditions such as extreme changes in temperature and erratic rainfall patterns. Seed germination and seedling…Publication Date 2006
- Drought Stress
- polyethylene glycol (PEG)
- restoration
- rangelands
- seeds
- germination
- grasslands
- rainfall
- climate
- drought
- plant autecology
- restoration ecology
- Africa
- Library Collection RecordCeropegia macmasteri, a new species from Cathcart in the Eastern Cape Province of South Africa, is only known from a single population in Dohne sourveld grassland where it occurs with another rare…Publication Date 2006
- Ceropegia macmasteri
- Eastern Cape
- South Africa
- sp. nov.
- taxonomy
- classification
- endemic species
- Africa
- Library Collection RecordCyperus articulatus L. and Cyperus corymbosus Rottb. were studied in southern Africa and were found to be synonymous. The latter bears laminae, has longer bracts and frequently has less septate culms…Publication Date 2006
- Cyperus articulatus
- Cyperus corymbosus
- southern Africa
- taxonomy
- Africa
- Library Collection RecordThe Drakensberg Alpine Centre (DAC) of southern Africa supports a speciose number of angiosperms. Its compliment of 2520 native angiosperms is comparable with the native floras of northern hemisphere…Publication Date 2006
- Angiosperms
- Drakensberg Alpine Centre
- Endemism
- flora
- Near-endemism
- Orange list
- Plant conservation
- Radiation
- management
- Africa
- Library Collection RecordThe aim of the study was to identify and classify the woodlands, bushland and grasslands of the Umkhanyakude Integrated Sustainable Rural Development Node (also known as Maputaland) into homogenous…Publication Date 2006
- plant ecology
- Maputaland
- multivariate analysis
- Phytosociology
- grasslands
- monitoring
- data analysis
- landscape ecology
- vegetation dynamics
- Africa
- Library Collection RecordRenewable energy usage in Africa has been reviewed using South Africa, Egypt, Nigeria and Mali as case studies. The various national energy policies of these countries were analysed and areas that…Publication Date 2006
- renewable energy
- Sustainable development
- environment
- Africa
- Africa
- Library Collection RecordAlthough a variety of hierarchical image segmentation procedures for remote sensing imagery have been published, none of them specifically integrates remote sensing time series in spatial or…Publication Date 2008
- Hierarchical image segmentation
- Fast Fourier transform
- NDVI time series
- vegetation mapping
- mapping
- remote sensing
- ecosystem dynamics
- ecology
- Africa
- Library Collection RecordThis paper evaluated the capacity of SPOT VEGETATION time-series to monitor herbaceous fuel moisture content (FMC) in order to improve fire risk assessment in the savanna ecosystem of Kruger National…Publication Date 2007
- Fuel moisture content
- Live and dead fuel
- Improved Vegetation Dryness Index (IVDI)
- fire risk
- SPOT VEGETATION
- monitoring
- savanna
- fire
- ecosystem dynamics
- remote sensing
- Africa
- Library Collection RecordAn 18-year time series of monthly NOAA-AVHRR Pathfinder Land burned area was analyzed for the region of tropical Africa, from July 1981 to June 1999. The transition period between NOAA-11 and NOAA-14…Publication Date 2007
- Global burned area
- Southern Oscillation Index
- NOAA-AVHRR Pathfinder Land
- Forecast
- SARIMA
- fire ecology
- NOAA
- modelling
- Africa
- Library Collection RecordThe response of photosynthetic activity to interannual rainfall variations in Africa South of the Sahara is examined using 20 years (1981-2000) of Normalised Difference Vegetation Index (NDVI) AVHRR…Publication Date 2007
- NDVI
- vegetation
- rainfall
- Land cover
- soil properties
- Interannual variability
- Africa
- remote sensing
- Africa
- Library Collection RecordThis paper defines a land cover classification technique based on the annual NDVI cycle. A similarity measure based directly on the components of the Discrete Fourier Transform is used to determine a…Publication Date 2006
- Discrete Fourier Transform
- NDVI-time series
- classification
- Functional vegetation groups
- Africa
- Library Collection RecordThis paper evaluated the capacity of SPOT VEGETATION time-series to monitor the vegetation biomass and water content in order to improve fire risk assessment in the savanna ecosystem of Kruger…Publication Date 2006
- biomass
- Fire risk assessment
- SPOT VEGETATION
- time-series
- Vegetation water content
- fire ecology
- savanna
- vegetation dynamics
- monitoring
- plant production
- national parks
- remote sensing
- Africa