Rangeland Ecology & Management
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- Library Collection RecordOverseas Development Institute/International Institute for Environment and Development/Commonwealth Secretariat, London (1993) xi + 248 pp. ISBN 0-85003-195-8Publication Date 1995
- rangelands
- ecology
- pastoralism
- savanna
- Africa
- Library Collection Record
2 Savanna
Savannas are characterized by the coexistence of trees and grasses and occur largely in the seasonal tropics between the equatorial rainforests and mid-latitude desert ecosystems. This article…Publication Date 2008- climate change
- Deciduous
- Evergreen
- fire
- grazing
- herbivory
- phenology
- Seasonal tropics
- soils
- Tree and grass competition
- savanna
- ecology
- animal impact
- grasslands
- rainfall
- southern Africa
- Library Collection RecordAn overview of ecological models of grasslands and their research questions is presented. For the purpose of this article, models are regarded as a simplified and formalized representation of…Publication Date 2008
- competition
- disturbance
- Ecosystem modeling
- Grassland dynamics
- grazing
- Optimal life-history strategies
- primary production
- Remote sensing data
- Spatially explicit models
- succession
- modelling
- ecosystem ecology
- community
- vegetation dynamics
- plant production
- southern Africa
- Library Collection RecordAbstract Livestock grazing is often viewed as having detrimental effects on plants and plant communities. Livestock grazing can, however, be managed to be an effective tool for vegetation management…Publication Date 2010
- livestock
- grazing
- nutrition
- ecology
- management
- vegetation dynamics
- ecosystem ecology
- fire ecology
- southern Africa
- Library Collection RecordIn the Sahel and the Kalahari, the growth in groundwater extraction via simple wells and boreholes is contributing to an increased use of dryland natural resources, to competition for resources, and…Publication Date 2003
- rangeland condition
- rainfall
- groundwater
- animal production
- vegetation dynamics
- biodiversity
- bush thickening
- indigenous encroaching species
- southern Africa
- Library Collection RecordSummary The savanna biome is diverse, including formations ranging from almost treeless grasslands to more or less closed-canopy woodlands with considerable variation in plant composition, biomass,…Publication Date 2001
- savanna
- animal production
- plant production
- plant community ecology
- land use
- degradation
- agriculture
- ecology
- southern Africa
- Library Collection RecordVegetation dominated by grasses, which is among the largest ecosystems in the world, has great environmental significance as well as providing feed for livestock and wildlife. Grassland types vary…Publication Date 2001
- savannah
- steppe
- grasses
- herbivory
- grazing
- fire
- savanna
- grasslands
- disturbance
- livestock
- southern Africa
- Library Collection RecordThe chapter describes different patches that are included in a single landscape unit. Patches differ in size, species composition, and the way they function in a landscape. Patches may be composed of…Publication Date 2002
- vegetation dynamics
- ecology
- southern Africa
- Library Collection RecordThe use of fire in the management of grassland is a common rangeland practice in South Africa. This portends ecological implication for the sustainability of the savannah rangelands as a system. A…Publication Date 2008
- fire ecology
- management
- savanna
- grasslands
- rangelands
- Soil Condition
- plant production
- Africa
- Library Collection RecordWe introduce the five rangeland types found in the arid and semiarid regions of South Africa, namely Arid Savanna, Arid Grassland, Nama-karoo, Succulent Karoo, and Thicket, and describe the important…Publication Date 2006
- rangelands
- savanna
- livestock
- grazing
- management
- commercial agriculture
- subsistence agriculture
- Sustainable development
- Africa
- Library Collection RecordAbstract Question: Do anthropogenic activities facilitate the distribution of exotic plants along steep altitudinal gradients? Location: Sani Pass road, Grassland biome, South Africa. Methods: On…Publication Date 2008
- Alien
- dispersal
- disturbance
- Gradient analysis
- grasslands
- Multivariate
- spatial analysis
- transect
- Germishuizen & Meyer (2003)
- Alien invasive species
- rehabilitation
- restoration ecology
- management
- biodiversity
- seed banks
- vegetation dynamics
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- seed banks
- savanna
- vegetation dynamics
- Africa
- Library Collection RecordSummary * 1Grasses using the C4 photosynthetic pathway dominate today's savanna ecosystems and account for ~20% of terrestrial carbon fixation. However, this dominant status was reached only…Publication Date 2008
- atmospheric CO2
- C4 plants
- climate change
- fire
- grasslands
- grazing
- Poaceae
- rainfall
- savanna
- seasonality
- carbon dioxide
- palaeoclimate
- palaeobotany
- Africa
- Library Collection RecordAbstract Aim Grasslands and savannas, which make up >75% of Madagascar's land area, have long been viewed as anthropogenically derived after people settled on the island c. 2 ka. We…Publication Date 2008
- Africa
- biome origin
- C4 grasses
- deforestation
- fire ecology
- grassland
- Madagascar
- savanna
- Africa
- Library Collection RecordSummary * 1Fire is important for the maintenance and conservation of African savanna ecosystems. Despite the importance of fire intensity as a key element of the fire regime, it is seldom measured or…Publication Date 2006
- fire management
- fuel loads
- Kruger National Park
- long-term ecological experiment
- fire
- fire ecology
- management
- savanna
- Africa
- Library Collection RecordAbstract Anthropogenic perturbations have profoundly modified the Earth's biogeochemical cycles, the most prominent of these changes being manifested by global carbon (C) cycling. We…Publication Date 2007
- carbon sequestration
- 13C NMR
- deforestation
- land-use change
- NEXAFS
- organic matter composition
- Sr-FTIR-ATR
- synchrotron radiation
- land use
- grasslands
- vegetation dynamics
- carbon dynamics
- soil organic carbon
- agriculture
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- savanna
- ecology
- Africa
- Library Collection RecordSummary * 1Demographic processes, particularly the recruitment of seedlings, are critical to the long-term survival and re-establishment of plant populations. In many perennial grasslands successful…Publication Date 2008
- demography
- emergence
- full factorial experiment
- intraspecific competition
- irrigation
- recruitment limitation
- seed addition
- seedling survival
- semi-arid savanna
- Stipagrostis uniplumis
- grasslands
- fire ecology
- seeds
- ecosystem ecology
- vegetation dynamics
- germination
- 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 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 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 RecordNo abstract availablePublication Date 2007
- carbon dioxide
- savanna
- climate change
- 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 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 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
- Library Collection RecordCoexistence of trees and grasses in savannas should be possible if competition between the woody and the grassy components is less intense than the competition within each component. Although several…Publication Date 2008
- Acacia mellifera
- Competitor removal experiment
- Nearest-neighbour distance
- quantile regression
- spatial autocorrelation
- Spatial point pattern analysis
- savanna
- ecosystem ecology
- vegetation dynamics
- ecology
- Africa
- Library Collection RecordThe tree-grass interactions of African savannas are mainly determined by varying rainfall patterns and soil fertility. Large savanna trees are known to modify soil nutrient conditions, but whether…Publication Date 2007
- canopy
- Fibre content
- Grass structure
- grazing
- nitrogen
- phosphorus
- savanna
- rainfall
- soil fertility
- plant production
- nutrition
- soil organic carbon
- biomass
- forage quality
- Africa
- Library Collection RecordThe coexistence of woody and grassy plants in savannas has often been attributed to a rooting-niche separation (two-layer hypothesis). Water was assumed to be the limiting resource for both growth…Publication Date 2006
- fire
- grazing
- Honeycomb rippling model
- Inter-tree competition
- Spatio-temporal rainfall variation
- Tree-grass coexistence
- savanna
- indigenous encroaching species
- grasslands
- soil moisture
- rainfall
- vegetation dynamics
- Africa
- Library Collection RecordLake Urema is one of the most important ecological features of Gorongosa National Park, located in central Mozambique, in the East African Rift System. Understanding hydrology and ecology of the lake…Publication Date 2006
- floodplain
- remote sensing
- Reservoir lake
- Sediment composition
- savanna
- water quality
- Africa
- Library Collection RecordSavannah (C4) grasses are first recorded at low latitudes in the mid-Miocene prior to their expansion towards mid-latitudes by approximately the Miocene-Pliocene boundary. In an attempt to determine…Publication Date 2006
- isotopes
- carbon
- Microwear
- Rodent
- South Africa
- Pliocene
- savanna
- palaeobotany
- palaeoclimate
- Africa
- Library Collection RecordSemi-arid climatic conditions were responsible for the evolution of the vast savanna that stretches across central Africa and for the evolution of placers in this area that carry gemstones, rare…Publication Date 2008
- Placer deposit
- savanna
- Gemstones
- Titanium
- Rare earth element minerals
- Zircon landform types
- Malawi
- palaeobotany
- Africa
- Library Collection RecordSummary In this paper, we present a method to estimate the additional costs made by nature reserve managers to mitigate the effects of atmospheric deposition. Theoretically, these extra costs may be…Publication Date 2007
- Nature target types
- Management costs
- Deposition scenarios
- grasslands
- Reed and rough land
- Heathland
- forests
- Moorland pools
- conservation
- vegetation dynamics
- Economic Aspects
- greenhouse gases
- Africa
- Library Collection RecordReconstructing Plio-Pleistocene African paleoenvironments is important for models of early hominin evolution, but is often hampered by low-resolution or discontinuous climatic data. Here, we present…Publication Date 2007
- savanna
- Monsoon
- Walker Circulation
- Precession
- Hominin
- palaeobotany
- palaeoclimate
- palaeoenvironmental data
- Africa
- Library Collection RecordThis paper reports an assessment of the current and potential impacts of invasive alien plants on selected ecosystem services in South Africa. We used data on the current and potential future…Publication Date 2008
- biodiversity
- Fynbos
- grassland
- grazing
- groundwater
- hydrology
- Karoo
- savanna
- water yield
- Alien invasive species
- ecosystem services
- Africa
- Library Collection RecordThe importance of wild edible herbaceous species to resource poor households in most rural economies within savannas has been little studied. This is because most of the herbs grow in impoverished…Publication Date 2007
- biodiversity
- cultivation
- food security
- Impoverished lands
- NTFPs
- savanna
- Poverty
- household income studies
- rural areas
- socio-economic aspects
- management
- Africa
- Library Collection RecordNamibian rangelands are encroached with Acacia mellifera, partially resulting from a poor understanding of vegetation dynamics. A conceptual state-and-transition model of vegetation dynamics in the…Publication Date 2008
- fire
- hazards
- management
- opportunities
- state-and-transition
- savanna
- indigenous encroaching species
- bush thickening
- rainfall
- seed banks
- vegetation dynamics
- plant autecology
- Africa
- Library Collection RecordBush encroachment is a phenomenon that affects semi-arid savannas world-wide. To apply effective browsing to control trees, the browse-browser interaction must be well understood. An important aspect…Publication Date 2008
- Bush encroachment
- Delayed induced response
- Growth-defence tradeoff
- herbivory
- Plant defence
- savanna
- indigenous encroaching species
- plant autecology
- fertilizer
- irrigation
- forage quality
- foraging ecology
- Africa
- Library Collection RecordDespite the ubiquity of sub-tropical savannas throughout the earth, limitations of savanna productivity are understudied relative to other terrestrial systems. The limitations of savanna productivity…Publication Date 2008
- grass
- nitrogen
- phosphorus
- savanna
- rainfall
- soil nutrients
- plant production
- plant autecology
- Africa
- Library Collection RecordA number of studies have begun to show the large impact that pastoralism has on African savanna ecosystems. Here we look at the impact of abandoned settlements on the distribution of the large…Publication Date 2008
- pastoralism
- Sedentarization
- primary succession
- Nutrient hotspots
- community
- land use
- Abandoned lands
- vegetation dynamics
- Africa
- Library Collection RecordInvasion of ecosystems by woody alien plant species is a widespread phenomenon. Interspecific competition has often been suggested as a mechanism for replacement of one species by another, but this…Publication Date 2008
- biological invasions
- Coefficient of tree symmetry (TS)
- shade
- Symmetry technique
- Woodland structure
- savanna
- Alien invasive species
- ecosystem ecology
- ecosystem dynamics
- Phytosociology
- Africa
- Library Collection RecordChanges in species richness and vegetation composition in the diverse semi-arid Succulent Karoo vegetation of South Africa were investigated after 67 (1937-2004) years of rest from livestock grazing…Publication Date 2008
- diversity
- Growth Form
- ordination
- species richness
- succession
- Termitaria
- grazing
- vegetation dynamics
- ecology
- insects
- degradation
- restoration ecology
- Africa
- Library Collection RecordThis paper provides values for nitrogen isotopic abundances of southern African soils and plants along land use gradients of varying aridity. The ?15N values of soils and plants were generally higher…Publication Date 2008
- grasses
- grazing
- mineralization
- nitrification
- savanna
- trees
- soils
- grazing
- Africa
- Library Collection RecordThe Kalahari sand sheet, with a 2.5-million ha area, is probably the largest continuous surface of sand in the world. The Kalahari Transect (KT) is one of a set of IGBP 'megatransects '…Publication Date 2007
- biogeochemistry
- Hydraulic properties
- Kalahari transect
- Sand deposits
- stable isotopes
- ecosystem dynamics
- vegetation dynamics
- soil organic carbon
- Soil Condition
- soil nutrients
- rainfall
- grasslands
- Africa
- Library Collection RecordRapid growth of the black rhino (Diceros bicornis) population in the Great Fish River Reserve (GFRR), South Africa, has potential to negatively impact the semi-arid thicket vegetation that occurs in…Publication Date 2007
- diet
- herbivory
- intake
- Plant defence
- savanna
- forage quality
- management
- conservation
- Africa
- Library Collection RecordResearchers and managers debate the relevance of non-equilibrium dynamics in rangelands, where ungulate populations are more closely associated with abiotic events than forage availability, and…Publication Date 2007
- Coefficient of variation
- Density dependence
- Ecosystem modeling
- non-equilibrium
- precipitation
- savanna
- Africa
- Library Collection RecordIn Namaqualand, heavy grazing of low-lying areas has resulted in the reduction of palatable perennial shrubs and the dominance of the unpalatable shrub, Galenia africana. This study investigates the…Publication Date 2007
- Succulent karoo
- Namaqualand
- Vegetation Change
- rehabilitation
- microhabitats
- grazing
- seeds
- restoration ecology
- vegetation dynamics
- Africa
- Library Collection RecordWe tested the theories on hierarchical foraging by large herbivores by studying selection of woody browse by goats in a semi-arid savanna. In the smallest scale, we compared characteristics of woody…Publication Date 2007
- Hierachical foraging
- intake rate
- Plant defences
- selective foraging
- foraging ecology
- savanna
- goats
- diet selection
- Africa
- Library Collection RecordSatellite imagery derived fire history data for the southern Okavango Delta, Botswana from 1989 to 2003 were used to analyse the temporal and spatial distribution of fires and to assess changes in…Publication Date 2007
- savanna
- fire season
- fire regime
- fire frequency
- wetland
- southern Africa
- fire
- fire ecology
- Africa
- Library Collection RecordThe objective of this paper is to examine the spatial variability of islands of enhanced hydrologic activity and its application to remediation of degraded arid and semi-arid ecosystems. Factors…Publication Date 2006
- Biotic productivity
- heterogeneity
- rangeland
- remediation
- runoff
- Water ponding dikes
- restoration ecology
- degradation
- vegetation dynamics
- ecosystem ecology
- Africa
- Library Collection RecordDegradation in semi-arid Karoo rangelands has been ascribed to over-utilization by livestock and variations in rainfall regime. The understanding of vegetation dynamics in confined plant-herbivore…Publication Date 2006
- African wild herbivore
- Herbivore exclosure
- plant functional type
- Protected area
- vegetation monitoring
- rangelands
- rangeland condition
- vegetation dynamics
- livestock
- grazing
- land use
- national parks
- rainfall
- monitoring
- Africa