Rangeland Ecology & Management
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- 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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
- Library Collection RecordIn the Miombo Woodlands Region of south-central Africa, the interaction between fires and elephants is one of the main drivers of vegetation, along with climate, soils and topography. Fire-elephant…Publication Date 2008
- fire
- Elephants
- multivariate statistics
- Miombo woodlands
- conservation
- savanna
- mammals
- Nature reserves
- vegetation dynamics
- ecology
- ecosystem ecology
- Africa
- Library Collection RecordThe self-thinning line is a very robust pattern, which can be obtained in modeling studies by a variety of different mechanistic assumptions. Our opinion is that we can only advance in our…Publication Date 2008
- Size inequality
- Competitive asymmetry
- Zone of influence model
- Arid savanna
- Acacia reficiens
- Namibia
- Parsimony
- Pattern-oriented modeling
- savanna
- vegetation dynamics
- modelling
- Africa
- Library Collection RecordMany mechanisms have been suggested to explain the coexistence of woody species and grasses in savannas, yet, evidence from field studies and simulation models has been mixed. Shrub encroachment is…Publication Date 2007
- Patch-dynamics
- Cyclical succession
- shrub encroachment
- Spatially explicit root growth
- Computer simulation model
- Validation
- Latin Hypercube sensitivity analysis
- Acacia mellifera
- savanna
- indigenous encroaching species
- vegetation dynamics
- ecosystem ecology
- modelling
- rainfall
- fire
- soil moisture
- Africa
- Library Collection RecordIn semiarid savannas of Southern Africa current land use practices and climate change may lead to substantial changes of vegetation structure in the near future, however uncertainty remains about the…Publication Date 2006
- Acacia erioloba
- Bush encroachment
- global change
- Grewia flava
- overgrazing
- seed dispersal
- shrub encroachment
- Southern Kalahari
- Spatial-explicit simulation model
- savanna
- land use
- grazing
- climate change
- vegetation dynamics
- cattle
- ecosystem ecology
- ecosystem dynamics
- rainfall
- fire ecology
- modelling
- conservation
- management
- carrying capacity
- biodiversity
- indigenous encroaching species
- Africa
- Library Collection RecordA payments for ecosystem services (PES) system came about in South Africa with the establishment of the government-funded Working for Water (WfW) programme that clears mountain catchments and…Publication Date 2008
- Working for Water
- Payment mechanisms
- ecosystem services
- water supply
- Poverty relief
- Poverty
- Alien invasive species
- fire
- plant production
- biodiversity
- hydrology
- vegetation dynamics
- Economic Aspects
- Africa
- Library Collection RecordRapid population growth, unsustainable land use, and a pervasively degrading landscape are components of a dominant paradigm regarding African development. While recent work articulating the '…Publication Date 2006
- conservation
- land tenure
- land use
- remote sensing
- deforestation
- Uganda
- vegetation dynamics
- degradation
- Sustainable development
- grasslands
- biomass
- soil
- Africa
- Library Collection RecordSeed production, viability, dispersal, predation and seed banks of Themeda triandra were determined to assess the potential of the seeds of this indigenous species in the re-establishment of degraded…Publication Date 2009
- burning
- disturbance
- regeneration
- seeds
- vegetation dynamics
- grasslands
- seed banks
- degradation
- restoration ecology
- fire ecology
- South Africa
- Library Collection RecordThe atmospheric carbon dioxide content was monitored continuously near Pretoria for 15 months. Variations on the timescale of hours, days and seasons were observed and related to source and…Publication Date 1979
- carbon dioxide
- pollution
- vegetation dynamics
- Africa
- Library Collection RecordPredicting the effect of different management strategies on range condition is a challenge for farmers in highly variable environments. A model that explains how the relations between rainfall,…Publication Date 2010
- catastrophe theory
- complexity theory
- Disequilibrium
- hysteresis
- moving attractors
- vegetation dynamics
- livestock
- rainfall
- rangelands
- mangement
- rangeland condition
- modelling
- ecosystem ecology
- stocking rate
- South Africa
- Library Collection RecordThe physiognomy of dry savannas is described as a combination of discontinuous woody perennials and a continuous grassland matrix. Interactions between these two components are of vital importance…Publication Date 1992
- Herb composition
- herbaceous production
- microclimate
- nitrogen fixation
- Soil amelioration
- vegetation dynamics
- savanna
- grasslands
- landscape ecology
- soil nutrients
- rainfall
- Africa
- Library Collection RecordThe mediterranean ecosystems of the world harbor exceptional biodiversity, and factors such as livestock grazing which may negatively affect biodiversity are of global concern. The mediterranean…Publication Date 2009
- rangelands
- rangeland condition
- vegetation dynamics
- grazing
- biodiversity
- livestock
- commercial agriculture
- communal farming
- Karoo
- Africa
- Library Collection RecordAbstract Aim Evidence is accumulating of a general increase in woody cover of many savanna regions of the world. Little is known about the consequences of this widespread and fundamental ecosystem…Publication Date 2009
- Biome shift
- Bush encroachment
- global change
- Land cover change
- landscape heterogeneity
- savanna
- biodiversity
- birds
- ecosystem ecology
- species richness
- vegetation dynamics
- South Africa
- Library Collection RecordNo abstract availablePublication Date 1984
- vegetation dynamics
- ecology
- Africa
- Library Collection Record1. Through their effects on plant communities, herbivores can exert strong direct and indirect effects on savanna ecosystems and have the potential to create and maintain savanna landscape…Publication Date 2010
- grazing
- savanna
- herbivores
- ecosystem ecology
- vegetation dynamics
- cattle
- game
- cattle - wildlife interactions
- ecological legacies
- facilitation
- foraging behaviour
- landscape heterogeneity
- pastoralism
- plant - herbivore interactions
- rangeland
- succession
- Africa
- Library Collection Record1. Grazing lawns are short grassland areas where intense grazing maintains grass in an early growth stage. These areas represent a source of high-quality forage for herbivores. However, as herbivores…Publication Date 2010
- grazing
- grasslands
- management
- plant production
- savanna
- vegetation dynamics
- climatic variability
- continuous stocking
- grazing systems
- intensively managed grasslands
- large herbivores
- primary production
- rainfall
- white rhino
- South Africa
- Library Collection Record1. The coexistence of leguminous trees and C4 grasses in many African savannas forces competition between these two distinct plant life-forms. The nature of tree - grass coexistence and the…Publication Date 2010
- vegetation dynamics
- soil nitrogen
- fertilizer
- C4 grasses
- African Acacia
- competition
- grass
- nitrogen fixation
- nodule
- Phosphate
- savanna
- Africa
- Library Collection Record1. Up to 73% of the world s rangelands are degraded, and increasing demand for meat in developing countries and a growing human population are likely to exert even greater pressures on rangelands in…Publication Date 2010
- restoration ecology
- stocking rates
- grazing
- rangelands
- rainfall
- management
- ecosystem ecology
- vegetation dynamics
- South Africa
- Library Collection RecordSummary This paper presents a description of the temporal and spatial distribution of rainfall within the Serengeti Ecosystem, Tanzania. Ecosystem and Regional patterns are discussed with respect to…Publication Date 1975
- rainfall
- ecosystem dynamics
- ecosystem ecology
- vegetation dynamics
- Africa
- Library Collection RecordThe interaction, both above and belowground, between tree saplings and the surrounding grass sward is dependent on solar radiation, temperature, rainfall, soil depth, tree species and sward…Publication Date 2014
- vegetation dynamics
- encroachment
- management
- Aboveground competition
- belowground competition
- Bush encroachment
- savanna
- soil depth
- Ukulinga Research Farm
- Pietermaritzburg
- South Africa
- Library Collection RecordHerbivores influence the structure and composition of terrestrial plant communities. However, responses of plant communities to herbivory are variable and depend on environmental conditions,…Publication Date 2013
- abiotic gradients
- community structure
- exclosure experiment
- herbivory
- livestock-wildlife interactions
- plant species richness
- plant-herbivore interactions
- wildlife decline
- ecosystem ecology
- vegetation dynamics
- soils
- rainfall
- biodiversity
- East Africa
- Library Collection RecordAbstract Protected areas such as national parks are often assumed to be the best way to conserve plant diversity and maintain ecosystem composition and structure. To evaluate this assertion, we…Publication Date 2011
- conservation
- management
- restoration ecology
- management
- grasslands
- data analysis
- biodiversity
- land use
- vegetation dynamics
- grazing
- species richness
- national parks
- Tunisia
- Africa
- Library Collection RecordDead shrubs lying on the soil surface in an arid shrubland in the southern Karoo have half-lives of 9 to 18 years depending on wood density which varies among species. Dung pellets of sheep and…Publication Date 1996
- ecosystem ecology
- rangeland condition
- rangelands
- land use
- climate
- vegetation dynamics
- Africa
- Library Collection RecordThe dynamics of savannah vegetation are still poorly understood. This study aims at analysing land cover changes over the past 20 years in the rangelands area of Narok District, Kenya. To analyse the…Publication Date 2001
- vegetation dynamics
- ecosystem ecology
- land-use
- remote sensing
- climate
- Africa
- Library Collection RecordSummary In savannas, degrading trends such as increasing woody cover are caused by livestock ranging. Hence, identifying sustainable utilisation intensities is crucial for range management. However,…Publication Date 2000
- ungulate herbivory
- semiarid rangelands
- degradation
- shrub encroachment
- savanna vegetation
- savanna
- sustainability
- management
- rangelands
- vegetation dynamics
- plant production
- animal production
- Africa
- Library Collection RecordAim To determine whether patterns of avian species turnover reflect either biome or climate transitions at a regional scale, and whether anthropogenic landscape transformation affects those patterns…Publication Date 2004
- Avian species turnover
- ?-diversity
- biome
- heterogeneity
- spatial congruence
- birds
- biodiversity
- vegetation dynamics
- ecosystem ecology
- climate
- landscape ecology
- land use
- Africa
- Library Collection RecordAbstract not available.Publication Date 2002
- vegetation dynamics
- ecosystem ecology
- rangelands
- grazing
- Africa
- Library Collection RecordSummary * 1The success of large-scale cattle ranching in African savanna vegetation has often been limited by problems of bush encroachment and disease (in particular trypanosomiasis spread by tsetse…Publication Date 2003
- Bush encroachment
- East Africa
- grazing patterns
- Landsat TM
- remote sensing
- Vegetation classification
- indigenous encroaching species
- shrub encroachment
- cattle
- savanna
- commercial agriculture
- vegetation dynamics
- grazing
- mapping
- Landsat images
- Economic Aspects
- Africa
- Library Collection RecordIn this study, we present a stochastic landscape modeling approach that has the power to transfer and integrate existing information on vegetation dynamics and hydrological processes from the small…Publication Date 2009
- modelling
- vegetation dynamics
- landscape ecology
- hydrology
- commercial agriculture
- subsistence agriculture
- grazing
- plant production
- runoff
- drought
- rainfall
- management
- Namibia
- 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 RecordGullied and ungullied catchments in four areas of deeply weathered saprolite in the Middle Veld of Swaziland can be successfully separated (p<0.01) using discriminant analysis based on area and…Publication Date 2003
- gully erosion
- thresholds
- discriminant analysis
- Swaziland
- land use
- soil erosion
- rangelands
- vegetation dynamics
- Africa