Rangeland Ecology & Management
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- Library Collection RecordThis chapter describes relationships between environmental stress and the reaction of plants thereupon. Plants might react to environmental stress on various levels: on the biochemical, cellular, or…Publication Date 2003
- Autecology
- biodiversity
- character state
- climate change
- ecotoxicology
- effects
- Ellenberg
- flora
- heavy metal
- IEPS
- insecticide
- PAF
- palynology
- photosynthesis
- Synecology
- vascular plants
- vegetation
- southern Africa
- Library Collection RecordNo Abstract available.Publication Date 2002
- cattle
- sustainability
- southern Africa
- Library Collection RecordCarrying capacity is typically defined as the maximum population size that can be supported indefinitely by a given environment, but there are at least 10 different specific definitions used in basic…Publication Date 2008
- Density dependence
- Law of the minimum
- Logistic population growth model
- population regulation
- population size
- Sustainable yield
- carrying capacity
- cattle
- ecology
- rangelands
- southern Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- forage quality
- cattle
- 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 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 presents an environmental exposure assessment model for estimating chronic intake of vanadium (a transition metal) by cattle farmed extensively in areas contaminated by vanadium pollutants…Publication Date 2006
- Environmental epidemiology
- Vanadium
- pollution
- cattle
- model
- Transition metals and exposure assessment
- modelling
- Africa
- Library Collection RecordIn this study we employ the TRIFFID (Top-down Representation of Interactive Flora and Foliage Including Dynamics) Dynamic Global Vegetation Model (DGVM) and the Hadley Centre Atmospheric General…Publication Date 2006
- Mid-Pliocene
- vegetation
- General Circulation Model
- Top-down Representation of Interactive Flora and Foliage Including Dynamics
- Hominid
- Bipedalism
- palaeobotany
- Africa
- Library Collection RecordThe multiple benefits from livestock production to rural households are evaluated in Thorndale, a communal area of the Limpopo Province South Africa. Monetary values of livestock products are…Publication Date 2006
- Communal areas
- Direct-use value
- households
- Livelihood
- Non-marketed outputs
- policy
- cattle
- socio-economic aspects
- rural areas
- goats
- household income studies
- Africa
- Library Collection RecordPastoral production around artificial watering points in semi-arid environments affects the density and composition of plant communities. In the Kalahari desert of southwestern Africa, bush…Publication Date 2007
- Rural livelihoods
- watering points
- land degradation
- Fodder trees
- Indigenous ecological knowledge
- Herero
- pastoralism
- traditional knowledge
- piosphere
- degradation
- cattle
- household income studies
- participatory rural appraisal
- livestock
- subsistence agriculture
- socio-economic aspects
- Africa
- Library Collection RecordThe most practical and effective method to increase dry matter production in rangelands is by adequate fertilization. N and K fertilizers have commonly been used worldwide to increase yield in…Publication Date 2008
- forage quality
- botanical composition
- mineral concentration
- harvest date
- cattle
- 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 RecordThis paper revisits the debate over the relative effectiveness of 'conservative' and 'opportunistic' stocking strategies for African pastoral rangelands. The paper is based on a…Publication Date 2006
- rangelands
- cattle
- Pastoral strategy
- stocking rate
- Capital costs
- southern Africa
- Zimbabwe
- pastoralism
- stocking rates
- socio-economic aspects
- communal farming
- management
- Africa
- Library Collection RecordConserving African wildlife in human-occupied landscapes requires management intervention that is guided by a mechanistic understanding of how anthropogenic factors influence large-scale ecological…Publication Date 2007
- wildlife
- rainfall
- predation
- competition
- apparent competition
- Non-protected area
- management
- conservation
- grasslands
- eco - tourism
- cattle
- Africa
- Library Collection RecordLivestock production systems in Africa are experiencing rapid changes in structure and function due to increased demands for livestock products from a more prosperous and ever-increasing human…Publication Date 2008
- Methane
- livestock systems
- Livestock Populations
- climate change
- IPCC
- Africa
- cattle
- sheep
- goats
- greenhouse gases
- Africa
- Library Collection RecordSuccess in long-term agricultural production in resource-poor farming systems relies on the efficiency with which nutrients are conserved and recycled. Each transfer of nutrients across the farming…Publication Date 2006
- cattle
- Compost
- feed intake
- manure
- nitrogen use efficiency
- N losses
- agriculture
- soil nutrients
- management
- communal farming
- livestock
- Africa
- Library Collection RecordLarge herbivores can both positively and negatively affect primary productivity and rates of nutrient cycling in different ecosystems. Positive effects of grazers in grasslands have been attributed…Publication Date 2006
- livestock
- soil fertility
- rainfall
- ecosystem processes
- savanna
- productivity
- soil fertility
- cattle
- migration
- Africa
- Library Collection RecordFarm practices in the Sneeuberg Mountains, Karoo, South Africa are examined to assess their contribution to the development of the observed gullies and badlands. Data from the literature is augmented…Publication Date 2007
- erosion
- land degradation
- range management
- vegetation
- grazing
- Stock
- management
- degradation
- land use
- participatory rural appraisal
- livestock
- rehabilitation
- Africa
- Library Collection RecordLittle is known about the grass species type, composition and nutritive value in the semiarid savannas that sustain most of Swaziland's cattle population through the seven-month-long dry season…Publication Date 2009
- cumulative gas production
- organic matter degradability
- ruminant livestock
- tropical grass species
- nutrition
- cattle
- grasslands
- savanna
- grazing
- soils
- forage quality
- Swaziland
- Africa
- Library Collection RecordThe study focused on investigating the effects of different grazing ratios and stocking rate of cattle and goats under mixed species grazing on different species of plant. The experimental site was…Publication Date 2012
- Mixed-species grazing
- stocking rate
- grazing ratio
- cattle
- goats
- biomass
- Zimbabwe
- Africa
- Library Collection RecordFor estimating herbage intake during grazing, the traditional sward cutting technique was compared in grazing experiments in 2002 and 2003 with the recently developed n-alkanes technique and with the…Publication Date 2005
- dairy cow
- herbage intake
- sward cutting
- n-alkanes
- grazing
- cattle
- fodder quality
- Africa
- Library Collection RecordPrimary energy extraction patterns by livestock under agropastoralism and ranching were investigated by the bite count method in semiarid south-eastern Kenya. Sward biomass for optimal energy intake…Publication Date 2009
- agropastoralism
- energy intake
- ranching
- livestock
- cattle
- sheep
- goats
- pastoralism
- diet selection
- grazing
- management
- animal production
- Kenya
- Africa
- Library Collection RecordThe present study assessed the effects of deferred grazing management on rangeland condition using aboveground biomass, vegetation cover and species composition as indicators of range condition. The…Publication Date 2013
- grazing
- vegetation
- ecosystem ecology
- management
- rangeland
- biomass
- grazing management
- ngitili
- species diversity
- vegetation cover
- Shinyanga
- Meatu districts
- Tanzania
- Africa
- Library Collection RecordThere is a common perception in South Africa that the youth are not interested in agriculture, leading to two concerns: first, that this is exacerbating the youth unemployment crisis, and second,…Publication Date 2013
- agriculture
- socio-economic aspects
- communal farming
- rural areas
- animal production
- Plant Productivity
- policy
- livestock
- communal rangelands
- cattle
- goats
- South Africa
- Library Collection RecordEffects of mine dump pollution on semiarid savanna vegetation were investigated in Kombat, Namibia. Vegetation structure, species richness, composition and diversity were compared between polluted…Publication Date 2011
- heavy metals
- Kombat
- ordination
- vegetation
- pollution
- savanna
- mining
- mine dump
- species richness
- species diversity
- toxicity
- decision support systems
- Namibia
- Africa
- Library Collection RecordIn spite of predictions of communal rangeland collapse due to continuous grazing and increased livestock populations, this grazing system remains prevalent in communal areas, suggesting animals…Publication Date 2010
- cattle
- Graze
- key resource areas
- livestock
- communal farming
- rangelands
- grazing
- plant production
- soils
- soil organic carbon
- Eastern Cape
- South Africa
- Library Collection RecordSeed ecology may play a role in the widespread increase of Acacia karroo in savanna and grassland. Accordingly, fecundity, predation, mortality by fire, dispersal by livestock, and seed longevity…Publication Date 2010
- dispersal
- fire
- seed bank
- seed lngevity
- seed predation
- seed production
- ecology
- savanna
- grassland
- livestock
- insects
- germination
- cattle
- sheep
- goats
- management
- Eastern Cape
- South Africa
- Library Collection RecordThe relative benefit of different grazing management practices for maintaining grassland biodiversity integrity was assessed. Practices considered were grazing system, stocking rate, animal type,…Publication Date 2010
- analytic heirarchy process
- plant diversity
- stocking rate
- veld condition assessment
- grazing
- management
- biodiversity
- fire
- cattle
- sheep
- Impact assessment
- South Africa
- Library Collection RecordSinking boreholes to tap groundwater supplies facilitated expansion of all-year round livestock production into the semi-arid Kalahari. Increased grazing and trampling pres sure around the boreholes…Publication Date 1997
- agriculture
- piosphere
- grazing
- grasslands
- soil erosion
- Soil Condition
- cattle
- watering points
- rainfall
- modelling
- Africa
- Library Collection RecordAbstract. Shrub encroachment, i.e. the increase in woody plant cover, is a major concern for livestock farming in southern Kalahari savannas. We developed a grid-based computer model simulating the…Publication Date 2004
- Acacia erioloba
- browsing
- Bush encroachment
- Savanna dynamics
- shrub invasion
- Spatial-explicit simulation model
- indigenous encroaching species
- modelling
- rangelands
- livestock
- savanna
- cattle
- fire ecology
- shrub encroachment
- stocking rates
- Africa
- Library Collection Record1. Ecological edges (zones separating ecosystems or land cover types) can function as active boundaries, unique habitats and dynamic transition zones. Abiotic factors, species and species…Publication Date 2011
- savanna
- ecosystem structure
- Ecosystem function
- edge effects
- grazing
- cattle
- Acacia drepanolobium
- boma
- continuous response function
- Crematogaster
- edge depth
- habitat fragmentation
- multiple edges
- Tetraponera penzigi
- Laikipia
- Kenya
- 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 RecordProtected areas constitute strategy for biodiversity conservation. Unfortunately, these sanctuaries of biodiversity are submitted to a high human pressure in Togo. This study carried out in the Alé…Publication Date 2012
- vegetation
- diversity
- Pressure
- management
- Togo
- 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 RecordA sampling system was devised and used from 1992 to 1996 in annual grassland and open woodland of the south-west Kenyan Rift Valley. The monitoring was designed to detect vegetation changes…Publication Date 2000
- range assessment
- savanna
- transect
- vegetation
- woodland
- ecosystem ecology
- land-use
- management
- rangeland condition
- monitoring
- livestock
- Africa
- Library Collection RecordThe effects of species composition and sward structure on the ingestive behaviour of cattle and sheep grazing a mesic, low quality grassland in South Africa were investigated over the 1990–93…Publication Date 1996
- diet selection
- cattle
- sheep
- grasslands
- grazing
- Africa
- Library Collection RecordDuring the last decade a [']new rangeland science 039; has emerged. One of the tenets of the new science is that pastoralists should not adhere to a single conservative stocking rate, but rather…Publication Date 2000
- Capital costs
- cattle
- carrying capacity
- Environmental costs
- modelling
- rangeland
- southern Africa
- stocking rate
- socio-economic aspects
- economics
- management
- Africa
- Library Collection RecordAbstract not available.Publication Date 2001
- soil moisture
- vegetation
- ecohydrology
- stochastic processes
- hydrology
- water stress
- water balance
- savanna
- grasslands
- Crossing analysis
- Africa
- Library Collection RecordThis series of four papers studies the complex dynamics of water-controlled ecosystems from the hydro-ecological point of view [e.g., I. Rodriguez-Iturbe, Water Resour. Res. 36 (1) (2000) 3–9].…Publication Date 2001
- soil moisture
- vegetation
- ecohydrology
- stochastic processes
- hydrology
- water stress
- water balance
- savanna
- grasslands
- Crossing analysis
- Africa
- Library Collection RecordWe constructed a simple simulation model (SESS) of the dynamics of forage growth and standing crop and cattle production to evaluate the ecological sustainability of management alternatives for…Publication Date 2003
- models
- simulation
- Grazinglands
- rangelands
- Semi-arid zones
- ANP
- sustainability
- range condition
- grazing
- Cattle reproduction
- forage quality
- cattle
- management
- plant production
- animal production
- soils
- rainfall
- rangeland condition
- 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 RecordSeveral of the problems associated with grazing animals in extensive settings are related to their uneven patterns of use across the landscape. After fencing, water and salt are two of the most…Publication Date 2001
- Global positioning system
- Activities
- grazing time
- Resting time
- livestock management
- rangelands
- cattle
- grazing
- management
- Africa
- Library Collection RecordSavanna landscapes in the dry communal areas of southern Zimbabwe are highlyspatially heterogeneous. This year-long study explores the responses of cattle to variation in the availability of fodder…Publication Date 1995
- foraging behaviour
- cattle movement
- spatial and temporal hererogeneity
- savanna vegetation
- Zimbabwe
- savanna
- foraging ecology
- cattle
- plant production
- forage quality
- management
- grazing
- policies
- 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 RecordThis article analyses land use and vegetation change in the savanna contexts of central Zimbabwe and coastal Ghana. The results of analyses based on field surveys, time series aerial photographs/…Publication Date 2002
- Africa
- vegetation
- GIS
- Narrative
- Multi-directional change
- Patch dynamic change
- Africa
- Library Collection RecordThe estimated number of tsessebes on a cattle and wildlife ranch in Zimbabwe decreased during 1995-1999 from 2209 to 435 animals. Existing records of rainfall, cattle management, wildlife numbers,…Publication Date 2003
- Tsessebe antelope
- population decline
- Damaliscus lunatus
- competition
- drought
- cattle
- vegetation dynamics
- forage quality
- Forage Quantity
- management
- Africa
- Library Collection RecordPollen records from Lake Malawi, Africa spanning the last 135 160;kyr show substantial and abrupt vegetation response to multiple episodes of extreme aridity between 135 and 75 160;ka. Peaks in both…Publication Date 2011
- pollen
- vegetation
- Pleistocene
- Paleoclimate
- East Africa
- Library Collection RecordAccurate reconstructions of past hydrological variability are essential for understanding the climate history of the tropics. In tropical Africa, the relative proportion of vegetation utilizing the…Publication Date 2009
- vegetation
- n-alkane
- Lignin phenol
- Compound-specific carbon isotope
- Paleoclimate
- East Africa
- Library Collection RecordThis study was conducted to understand how seasonality in drylands influences the space-time dynamics of cattle behavior and mobility among pastoralist managed Zebu cattle. The study relies on the…Publication Date 2010
- behavior
- cattle
- Cultural ecology
- GPS
- Herd mobility
- pastoralism
- seasonality
- tracking
- zebu
- Kenya
- Africa
- Library Collection RecordMonitoring cattle inflows and outflows over time is a good indicator of herd productivity. In this study, ninety households were monitored for a year to determine the effect of season, rangeland type…Publication Date 2009
- Cattle sales
- Herd dynamics
- Household consumption
- mortality
- cattle
- Economic Aspects
- rangelands
- animal production
- South Africa