Rangeland Ecology & Management
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- Library Collection RecordTransformation of indigenous vegetation for production purposes impacts negatively on biodiversity but does this necessarily equate with a decrease in phytomass accumulation, which may influence…Publication Date 2008
- grasslands
- plant production
- carbon sequestration
- land use
- management
- conservation
- agriculture
- pasture management
- biodiversity
- 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 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 Record[1] Land use/cover change has been recognized as a key component in global change. Various land cover data sets, including historically reconstructed, recently observed, and future projected, have…Publication Date 2007
- land use
- climate change
- management
- classification
- data analysis
- remote sensing
- modelling
- rainfall
- Africa
- Library Collection RecordIt has been well established that drought frequently emerges in several tropical regions following the onset of El Niño. An important characteristic of such droughts is their spatial extent, which…Publication Date 2006
- drought
- climate change
- El Nino
- rainfall
- Africa
- Library Collection RecordIn Kenya, lands surrounding wildlife protected areas (PAs), referred to as dispersal areas, have undergone widespread land use changes, but these have been little studied. This study investigated…Publication Date 2008
- conservation
- agriculture
- national parks
- land use
- grazing
- biodiversity
- disturbance
- rainfall
- 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 RecordNo abstract availablePublication Date 2007
- carbon dioxide
- savanna
- climate change
- Africa
- Library Collection RecordLong environmental proxy records are very scarce in semi-dry continental areas and often those available present conflicting interpretations. However, more in-depth investigation of apparent…Publication Date 2008
- pollen
- Lake sediments
- Stable isotope
- Speleothem
- climate change
- palaeobotany
- Africa
- Library Collection RecordThis paper reports new multi-proxy palaeoenvironmental data on the late Glacial-Holocene transition (c. 14.8-9.3 ka) in equatorial East Africa, in the form of microfossil assemblages (chironomids,…Publication Date 2007
- climate change
- Crater lake
- Chironomids
- Diatoms
- East Africa
- Empakaai
- Multi-proxy reconstruction
- Ostracods
- palaeobotany
- Africa
- Library Collection RecordThe paper brings to the fore a plethora of proven successes in agriculture and land management in Sub-Saharan Africa over the past 4 decades. Cases can be grouped into those based on agricultural…Publication Date 2008
- Sub-Saharan Africa
- agriculture
- land management
- soil and water conservation
- success
- management
- conservation
- soils
- water use efficiency
- Africa
- Library Collection RecordSummary Robust calibration of hydrological models, driven by gridded precipitation data derived from either Regional Climate Models or statistical downscaling of General Circulation Models, is…Publication Date 2008
- groundwater
- recharge
- precipitation
- distribution
- Africa
- rainfall
- hydrology
- climate change
- soil moisture
- Africa
- Library Collection RecordThe late Cenozoic climate of Africa is a critical component for understanding human evolution. African climate is controlled by major tectonic changes, global climate transitions, and local…Publication Date 2007
- human evolution
- Tectonics
- Orbital forcing
- Africa
- climate change
- palaeoclimate
- Africa
- Library Collection RecordGlobal climate change, linked to astronomical forcing factors, has been implicated in faunal evolutionary change in equatorial Africa, including the origin and diversification of hominin lineages.…Publication Date 2007
- Hominin evolution
- Pliocene
- East Africa
- Baringo
- Tugen Hills
- Precession
- Orbitally forced climate change
- Diatoms
- palaeobotany
- climate change
- Africa
- Library Collection RecordSemi-arid areas are often considered to be environmentally and economically marginal, a situation which has been exacerbated by economic change, shifts in agricultural production and land use, and…Publication Date 2008
- Dry land degradation
- Economic decline
- Livestock trends
- population change
- Small towns
- rangelands
- Economic Aspects
- livestock
- agriculture
- socio-economic aspects
- politics
- Africa
- Library Collection RecordThis paper provides a reappraisal of contemporary perspectives on climate change in southern Africa's Okavango Delta sub-region by drawing on time-line evidence from historical/archival records…Publication Date 2008
- Bush-encroachment
- desiccation
- deterioration
- Human interventions
- wetland
- climate change
- remote sensing
- hydrology
- rainfall
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- agriculture
- soils
- Soil Condition
- grazing
- rangeland condition
- ecosystem dynamics
- Africa
- Library Collection RecordThe phenology of three dominant and economically important tree species; Acacia erioloba, Acacia luederitzii and Acacia mellifera, all widespread in the Kalahari in Botswana, was studied at Tsabong (…Publication Date 2007
- Kalahari
- phenology
- Acacia luederitzii
- Acacia erioloba
- Acacia mellifera
- litter
- plant autecology
- climate change
- rainfall
- fodder production
- Africa
- Library Collection RecordWe investigated the effects of rainfall and the number of animals on changes in vegetation and on the output of milk and meat from the communal areas of Namaqualand. Previously published short- and…Publication Date 2007
- climate change
- degradation
- desert
- Karoo
- livestock production
- Disequilibrium
- sustainability
- animal nutrition
- rainfall
- pastoralism
- subsistence agriculture
- animal production
- management
- Africa
- Library Collection RecordWe use the concept of ecological revolutions to explain the environmental history of Namaqualand, from the advent of pastoralism 2000 years BP, to colonial settlement in the 18th century and finally…Publication Date 2007
- degradation
- Environmental history
- human impact
- population
- repeat photography
- socio-economic aspects
- agriculture
- grazing
- management
- land use
- Africa
- Library Collection RecordWe evaluate the possible effects of climate change on vegetation in Central and West Africa. We chose two climate scenarios from the IPCC Third Assessment Report, ECHAM3 with scenario B2 and HADCM3…Publication Date 2008
- vegetation model
- climate change
- Central and West Africa
- modelling
- global warming
- Africa
- Library Collection RecordThe rich biodiversity of southern Africa has to date been relatively unimpacted by the activities of modern society, but to what degree will this situation persist into the 21st century? We use a…Publication Date 2008
- biodiversity
- southern Africa
- climate change
- land use change
- Land cover change
- Habitat loss
- conservation
- Millennium ecosystem assessment
- image
- CBD target
- Africa
- Library Collection RecordThis study reviewed the distribution of ten common savanna trees in Namibia. Tree distributions were investigated in relation to bioclimatic, topographic and edaphic variables at a national scale.…Publication Date 2006
- biogeography
- climate change
- forestry
- Plant functional attributes
- southern Africa
- Vegetation history
- Africa
- Library Collection RecordClimate change factors interact to modify plant growth and development. The objective of this study was to evaluate the response to temperature of big bluestem (Andropogon gerardii Vitman)…Publication Date 2007
- big bluestem
- biomass
- development
- Growth Rates
- Partitioning
- Seed number
- climate change
- temperature
- plant autecology
- plant production
- carbon dioxide
- Africa
- Library Collection RecordPrecision agriculture (PA) is an innovative, int+O101egrated and internationally standardized approach aiming to increase the efficiency of resource use and to reduce the uncertainty of decisions…Publication Date 2008
- precision agriculture
- grassland
- Perspectives
- Constraints
- interdisciplinary research
- grasslands
- remote sensing
- plant production
- Economic Aspects
- agriculture
- decision support systems
- management
- 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 RecordCrop and rangelands are over 25% of the Earth's land area, and they are expanding. Agricultural ecosystems rely on a suite of supporting ecosystem services to provide food, fiber and fuel as…Publication Date 2007
- ecosystem services
- agriculture
- Nonmarket valuation
- research needs
- soil fertility
- policies
- Economic Aspects
- Africa
- Library Collection RecordThe soil's resistance to concentrated flow erosion is an important factor for predicting rill and (ephemeral) gully erosion rates. While it is often treated as a calibration parameter in process…Publication Date 2007
- soil erosion resistance
- critical shear stress
- soil erodibility
- concentrated flow
- flume experiments
- soil properties
- tillage practices
- soil erosion
- Soil Condition
- runoff
- agriculture
- no-till
- management
- Africa
- Library Collection RecordWater erosion creates negative impacts on agricultural production, infrastructure, and water quality across the world. Regional-scale water erosion assessment is important, but limited by data…Publication Date 2006
- Review
- land degradation
- soil erosion
- remote sensing
- modelling
- Validation
- degradation
- agriculture
- plant production
- animal production
- satellite imagery
- monitoring
- Africa
- Library Collection RecordAnts are increasingly being recognized as useful tools for land managers to monitor ecosystem conditions. However, despite an abundance of studies on ant responses to both environmental disturbance…Publication Date 2006
- climate change
- conservation
- indicator
- invasive
- restoration ecology
- Surrogate
- insects
- Ants
- monitoring
- management
- Alien invasive species
- ecosystem dynamics
- Africa
- Library Collection RecordAdequate water supplies are essential to efficient livestock production. In many areas livestock are in conflict with crops for water and for key areas of use. Both surface and underground sources…Publication Date 2007
- Livestock drinking water
- Resource conflict
- Organization and management of water
- participation
- Cost recovery
- hydrology
- agriculture
- livestock
- socio-economic aspects
- policies
- Africa
- Library Collection RecordThe Clean Development Mechanism (CDM) of the Kyoto Protocol of the United Nations Framework Convention on Climate Change allows a country that emits C above agreed-upon limits to purchase C offsets…Publication Date 2007
- soil carbon
- carbon sequestration
- Carbon markets
- carbon credits
- poverty reduction
- drylands
- West Africa
- climate change
- greenhouse gases
- agriculture
- Economic Aspects
- socio-economic aspects
- Africa
- Library Collection RecordClimate is one of the most important factors determining the sustainability of agricultural production systems. More emphasis must be placed on understanding the influence of changing climate…Publication Date 2007
- sustainable agriculture
- climate variability
- climate change
- Agricultural weather policy
- climate
- agriculture
- animal production
- plant production
- Africa
- Library Collection RecordDeserts are known to mankind, but the term desertification has always been an elusive concept. It is now defined in the United Nations Convention to Combat Desertification (UNCCD) as land degradation…Publication Date 2007
- land degradation
- Land use and land cover changes
- overgrazing
- Biomass burning and atmospheric emissions
- Air Pollution
- Forest and woodland clearing
- wind erosion
- climate change
- degradation
- erosion
- land use
- grazing
- management
- Carbon Sink
- 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 RecordWithin the Kyoto Protocol, the clean development mechanism (CDM) is an instrument intended to reduce greenhouse gas emissions, while assisting developing countries in achieving sustainable…Publication Date 2008
- climate change
- afforestation
- reforestation
- land use
- Spatial modeling
- trees
- forests
- carbon
- CDM-AR
- land use change
- greenhouse gases
- Sustainable development
- socio-economic aspects
- Carbon Sink
- grasslands
- savanna
- food security
- Africa
- Library Collection RecordThe Highveld region in South Africa is an important area for its food production for the nation, as 70% of country's cereal crops and 90% of the commercially grown maize is cultivated there. The…Publication Date 2008
- Agro-ecosystem
- climate change
- sustainability
- food security
- South Africa
- agriculture
- Africa
- Library Collection RecordSlash-and-burn agriculture (tavy) is the major cause of upland degradation and deforestation in eastern Madagascar. Upland degradation studies are largely based on floristic loss and have ignored the…Publication Date 2007
- Tavy
- Betsimisaraka
- Vegetation succession
- Agricultural productivity
- biodiversity
- Upland rice
- degradation
- species richness
- agriculture
- subsistence agriculture
- management
- fire
- household income studies
- traditional knowledge
- Africa
- Library Collection RecordThe global farming systems (GFS) approach is extended by adding a soil fertility and nutrient management dimension for Africa's forest-based, maize mixed, cereal-root crop mixed, and agro-…Publication Date 2006
- soil fertility
- Nutrient stocks
- Nutrient flows
- Integrated nutrient management
- farming systems
- indicators
- Sub-Saharan Africa
- agriculture
- management
- soils
- socio-economic aspects
- food security
- policies
- 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 RecordThis 556-page book examines current grassland problems and issues, and provides an insight into grassland productivity in diverse areas of the world. There is a focus on recent technical advances and…Publication Date 2005
- grasslands
- foraging ecology
- agriculture
- climate change
- biodiversity
- GIS
- pastoralism
- Sustainable development
- Africa
- Library Collection RecordResearch on the effects of ozone on agricultural crops and agro-ecosystems is needed for the development of regional emission reduction strategies, to underpin practical recommendations aiming to…Publication Date 2003
- Tropospheric ozone
- Ozone flux
- Ozone risk assessment
- detoxification
- Antioxidants
- Agricultural crops
- grassland
- climate change
- agriculture
- modelling
- plant production
- ecosystem ecology
- carbon dioxide
- Africa
- Library Collection RecordRiver salination due to dryland agriculture was studied between 1985 and 1986 in the 150-km2 large catchment of the Sandspruit river, a tributary of the Berg river in the semi-arid Western Cape…Publication Date 1995
- agriculture
- hydrology
- rainfall
- modelling
- soils
- Africa
- Library Collection RecordCreated in 1968 in Zimbabwe, the Gonarezhou National Park (GNP) is a protected area dedicated to the conservation of wildlife resources. This paper offers insights in wildlife management and issues…Publication Date 2011
- management
- game
- climate change
- wildlife management
- socio-economic aspects
- Zimbabwe
- Africa
- Library Collection RecordRainfall variability is a key constraint to agricultural production, livelihoods and economic growth in many developing countries. This is likely to be exacerbated in many places as rainfall…Publication Date 2011
- agriculture
- water storage
- Poverty
- Rural
- socio-economic aspects
- climate change
- Sub-Saharan Africa
- Africa
- Library Collection RecordThe relevance of land-use planning tools such as the Land Use and Allocation Plan (LUAP)is more than ever a necessity to face challenges of natural resources degradation (water, soil and forest) the…Publication Date 2011
- socio-economic aspects
- degradation
- agriculture
- biodiversity
- climate change
- food security
- Senegal
- Senegal
- Africa
- Library Collection RecordInformation at local scale on impacts of climate variability and climate change are crucial for planning of adaptation strategies and practices in agriculture. There is a diversity of approaches and…Publication Date 2011
- climate change
- carbon sequestration
- monitoring
- soils
- degradation
- socio-economic aspects
- Impact assessment
- hydrology
- Africa
- Library Collection RecordAbstract not avaiable.Publication Date 2011
- biodiversity
- climate change
- global warming
- rainfall
- Nigeria
- Africa
- Library Collection RecordThis study examined the awareness and adaptation to climate change among farmers in the Sahel savanna agro-ecological zone of Borno State, Nigeria. Data for the study were collected from 225…Publication Date 2012
- climate change
- adaptation
- extension agent
- farmers
- savanna
- household income studies
- socio-economic aspects
- Borno State
- Nigeria
- North Africa
- Library Collection RecordThe agricultural component of the Millennium Challenge Account (MCA) programme in Ghana, consistent with the country's Food and Agriculture Sector Development Policy (FASDEP) promotes the…Publication Date 2012
- Tobit regression
- commercialization
- agriculture
- smallholder farmers
- subsistence agriculture
- Economic Aspects
- policies
- North Africa
- Ghana