Rangeland Ecology & Management
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Displaying 201 - 250 of 4164 results
- Library Collection RecordDryland degradation (in other words, desertification) is defined for the purposes of this paper as a persistent decrease in the capacity of an arid or semiarid ecosystem to supply a range of services…Publication Date 2009
- Africa
- Library Collection RecordDespite significant attention paid to desertification and climate change in the last few decades, interactions between the phenomena, as well as implications thereof, have received less of a focus.…Publication Date 2009
- Africa
- Library Collection RecordThe Namibian rangelands consist of a mixture of herbaceous and woody components. The main source of income is from farming systems with grass production the predominant source of forage. For…Publication Date 2009
- Africa
- Library Collection RecordFor many years, rangeland monitoring has mainly been the field of scientists, academics and extension workers trying to fine-tune methods to assess the condition of rangelands. Frameworks and…Publication Date 2009
- Africa
- Library Collection RecordTwo types of desertification professionals are typically characterised?the scientist and the policy-maker. After many years of efforts to combat desertification and promote sustainable land…Publication Date 2009
- Africa
- Library Collection RecordBy its nature, combating desertification is a complex, multidisciplinary activity that requires coordinated responses at a multitude of levels spanning both scientific disciplines and government…Publication Date 2009
- Africa
- Library Collection RecordThis study investigated the impact of rainfall and herbivory by indigenous herbivores over five years (2004?2008) on the vegetation of the Sanbona Wildlife Reserve (SWR), a 54 000 ha privately owned…Publication Date 2009
- Africa
- Library Collection RecordPteronia paniculata is an indigenous, unpalatable shrub that invades mismanaged Karooveld, resulting in degraded rangelands with low species diversity and grazing potential. We conducted a series of…Publication Date 2009
- 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 RecordThis study evaluated the variation of the concentration of mimosine in Leucaena forage with season, the time of defoliation and dehydration. Fresh samples were collected randomly from Leucaena…Publication Date 2009
- Africa
- Library Collection Record1-Jul-09Publication Date 2009
- forage
- grazing
- range management
- Arizona
- Library Collection RecordOn rangelands, uneven or unmanaged livestock distribution can adversely affect plant community composition, riparian function, or displace wildlife. These issues have historic precedents and are…Publication Date 2009
- range management
- grazing behaviour
- forage selection
- standing crop
- management
- grasslands
- plant production
- forage quality
- cattle
- grazing
- Burns
- Oregon
- USA
- Library Collection RecordThe African Wildlife Foundation (AWF) has developed and applied a landscape-scale conservation planning methodology in eight priority conservation landscapes in Africa, areas we call African…Publication Date 2009
- conservation
- biodiversity
- stakeholders
- socio-economic aspects
- Africa
- Library Collection RecordSummaryOver 1,200 Important Bird Areas (IBAs) have been identified in Africa, each meeting at least one of four objective criteria that identify it as an area of high conservation importance for…Publication Date 2009
- 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 establishment of enclosures has become an important measure to combat land degradation in many of the world's semi-arid rangelands. In view of the increased pressure exerted by this land…Publication Date 2009
- enclosures
- Semi-arid rangeland
- vegetation structure
- soil quality
- rehabilitation
- degradation
- management
- soil
- commercial agriculture
- communal farming
- plant production
- Soil Condition
- biomass
- Kenya
- Africa
- Library Collection RecordIn situ rainwater harvesting (RWH) belong to the promising practices to support sustainable development in sub-Saharan Africa facing climate change impacts. However, appropriate indicators for their…Publication Date 2009
- Ecosystem service
- climate change
- biodiversity
- soil and water conservation
- Downstream effects
- ecohydrology
- Soil Condition
- rainfall
- conservation
- sustainability
- soil nutrients
- species richness
- socio-economic aspects
- Africa
- Library Collection RecordThe influence of dispersed trees on microclimatic conditions, gas exchange and productivity of maize (Zea mays L.) in a Grevillea robusta-based agroforestry system in semi-arid Kenya was examined to…Publication Date 2009
- agroforestry
- Grevillea robusta
- microclimate
- temperature
- gas exchange
- Maize
- agriculture
- ecosystem ecology
- rainfall
- Kenya
- Africa
- Library Collection RecordDespite the importance of livestock to poor people and the magnitude of the changes that are likely to befall livestock systems, the intersection of climate change and livestock in developing…Publication Date 2009
- development
- research
- Poverty
- impact
- livestock
- systems
- climate change
- household income studies
- pastoralism
- Economic Aspects
- Africa
- Library Collection RecordThe adoption of conservation agriculture (CA), based on minimal soil movement, permanent soil cover with crop residues or growing plants and crop rotation has advanced rapidly in the Americas and…Publication Date 2009
- conservation agriculture
- infiltration
- water use efficiency
- erosion
- Soil moisture relations
- soil moisture
- Soil Condition
- Zambia
- Zimbabwe
- Africa
- Library Collection RecordSpatially explicit land use/cover models are indispensable for sustainable rural land use planning, particularly in southern African countries that are experiencing rapid land use/cover changes.…Publication Date 2009
- Land use/cover change
- Multicriteria evaluation (MCE)
- Multi-objective land allocation (MOLA)
- Markov-cellular automata model
- land use
- modelling
- remote sensing
- mapping
- degradation
- rural areas
- Zimbabwe
- Africa
- Library Collection RecordThe study examines the changes in sub-Saharan's natural land cover resources for a 25 year period. We assess these changes in four broad land cover classes - forests, natural non-forest…Publication Date 2009
- Land cover change
- High resolution satellite data
- sampling
- Africa
- Library Collection RecordData from the NASA'S MODIS (Aqua and Terra) and EUMETSAT'S MSG-SEVIRI satellite sensors is analysed to characterise the geographic and temporal (including diurnal) evolution of the July…Publication Date 2009
- Disaster
- fire
- GIS
- MODIS
- MSG-SEVIRI
- Swaziland
- fire ecology
- remote sensing
- Swaziland
- Africa
- Library Collection RecordImproved agricultural productivity using conservation farming (CF) systems based on non-inversion tillage methods, have predominantly originated from farming systems in sub-humid to humid regions…Publication Date 2009
- Conservation farming
- Non-inversion tillage
- semi-arid
- Water productivity
- On-farm experiments
- no-till
- management
- agriculture
- plant production
- Africa
- Library Collection RecordWe assessed whether prior foraging by wild herbivores affected foraging behaviour of cattle in Laikipia rangeland, Kenya, during February 2001, August 2001 and February 2002. The study compared…Publication Date 2009
- competition
- bite rate
- foraging behaviour
- livestock
- private land
- Step rate
- wildlife
- foraging ecology
- management
- Africa
- Library Collection RecordIn African savannahs, large trees improve grass quality, particularly in dry and nutrient poor areas. Enhanced below-canopy grass nutrients, such as nitrogen and phosphorus contents should therefore…Publication Date 2009
- canopy
- feeding preferences
- Fibre
- Grass quality
- Grazer
- herbivores
- linear programming
- nitrogen
- nutrients
- phosphorus
- savanna
- forage quality
- grazing
- animal nutrition
- modelling
- Africa
- Library Collection RecordLeaf gas exchange characteristics play a key role in carbon sequestration and water balance from site to regional scales, yet show differences among plant species with alternative adaptations to the…Publication Date 2009
- Arid and semiarid environments
- CO2 assimilation
- Ecophysiological models
- Kalahari
- Leaf gas exchange
- stomatal conductance
- carbon dioxide
- carbon sequestration
- water use efficiency
- climate
- plant autecology
- rainfall
- Botswana
- Africa
- Library Collection RecordNo abstract availablePublication Date 2009
- savanna
- vegetation dynamics
- Africa
- Library Collection RecordThis study looks at the impact of subdivision and sedentarization of pastoral lands on wildlife numbers and production in a savanna ecosystem of southern Kenya. The study uses aerial counts over a…Publication Date 2009
- land fragmentation
- rangelands
- Maasai
- settlement
- conservation
- land reform
- land use
- savanna
- ecosystem dynamics
- ecosystem ecology
- wildlife
- management
- grazing
- grasslands
- socio-economic aspects
- Kenya
- Africa
- Library Collection RecordWe quantified livestock (cattle, shoats, horses and donkeys) losses to lions (Panthera leo) and attitudes to lions, livestock losses and tourism among livestock owners, village residents and tourism…Publication Date 2009
- communities
- cattle
- Benefit
- predation
- compensation
- eco - tourism
- subsistence agriculture
- pastoralism
- socio-economic aspects
- Botswana
- Africa
- Library Collection RecordDegradation of vegetation and soils in drylands, sometimes called desertification, is thought to be a serious threat to the sustainability of human habitation, but maps of the extent and severity of…Publication Date 2009
- dryland degradation
- desertification
- Communal land
- net primary production (NPP)
- Local NPP scaling (LNS)
- MODIS
- sustainability
- mapping
- degradation
- communal farming
- plant production
- Zimbabwe
- Africa
- Library Collection RecordRelations between phytolith occurrences, taxonomy, and habitat are assessed for 184 East African grass species through the re-analysis of two qualitative surveys of phytolith types in leaf epidermis…Publication Date 2009
- phytolith
- Poaceae
- silica
- grassland
- savannas
- paleoecology
- Africa
- Library Collection RecordThe forest and savanna are already denuded of trees, hence this study focused on grasses, weeds and leaves as a possible source of sustainable, highly renewable replacement for wood as an energy…Publication Date 2009
- forest
- trees
- grasses
- Renewable
- wood
- availability
- sustainability
- grasslands
- Economic Aspects
- Nigeria
- Africa
- Library Collection RecordPollen and charcoal data generated from a 1469 cm core, radiocarbon dated to 26,430 14C yr BP, recovered from Rumuiku Swamp on the southeast of Mount Kenya, are used to document changes in the…Publication Date 2009
- charcoal
- Holocene
- Last Glacial Maximum
- pollen
- Younger Dryas
- palaeobotany
- Kenya
- Africa
- Library Collection RecordLeaf wax components of terrestrial plants are an important source of biomass in the geological records of soils, lakes and marine sediments. Relevant to the emerging use of plant wax derived…Publication Date 2009
- plant autecology
- biomass
- savanna
- Africa
- Library Collection RecordLivestock are a global resource of significant benefits to society in the form of food, income, nutrients, employment, insurance, traction, clothing and others. In the process of providing these…Publication Date 2009
- agriculture
- livestock
- greenhouse gases
- Economic Aspects
- Africa
- Library Collection RecordThroughout the Neogene, the faunas and floras in Africa recorded global climatic changes. We present an overview of Neogene desertification in Africa by tracing stable isotopes in eggshells and…Publication Date 2009
- desert
- Tugen Hills
- desert
- Africa
- Neogene
- Namib
- Congo Basin
- Egypt
- Library Collection RecordCentral governments have neither the capacity nor the local knowledge to implement a just, large-scale national land registration system. Support to local institutions to undertake intermediate forms…Publication Date 2009
- land
- Property
- institutions
- investment
- management
- policies
- socio-economic aspects
- pastoralism
- land reform
- land use
- Africa
- Library Collection RecordThis paper explores Swaziland's National Action Programme (NAP) to combat desertification; the country's main strategy for implementing the United Nations Convention to Combat…Publication Date 2009
- land degradation
- policy
- Poverty
- Orthodoxy
- Myth
- desertification
- policies
- management
- degradation
- land use
- Africa
- Swaziland
- Library Collection RecordSavanna chimpanzees are useful as referential models for early hominins, and here potential differences between chimpanzee and early hominin ecology is the focus. Whereas chimpanzees inhabit only a…Publication Date 2009
- Pan troglodytes
- diet
- paleoemvironmental data
- Africa
- Library Collection RecordThe results from two climate model simulations are used to explore the relationship between North Atlantic sea surface temperatures and the development of African aridity around 100,000 years ago.…Publication Date 2009
- Human dispersal
- Heinrich events
- Paleoenvironment
- climate change
- Africa
- Library Collection RecordA sequence of paleosols in the Solo Basin, Central Java, Indonesia, documents the local and regional environments present when Homo erectus spread through Southeast Asia during the early Pleistocene…Publication Date 2009
- carbon isotopes
- Hominin evolution
- Indonesia
- paleoecology
- Paleosols
- Sunda
- Africa
- Library Collection RecordThe need to implement sustainable resource management regimes for semi-arid and arid rangelands is acute as non-adapted grazing strategies lead to irreversible environmental problems such as…Publication Date 2009
- adaptation
- climate change
- Arid rangelands
- Namibia
- Bio-economic simulation approach
- land use
- sustainability
- management
- socio-economic aspects
- grazing
- modelling
- ecology
- savanna
- stocking rates
- decision support systems
- vegetation dynamics
- Namibia
- Africa
- Library Collection RecordIn this paper, we investigate the ways in which climate stressors and economic changes related to liberalisation alter the local vulnerability context. Household and key informant data from two…Publication Date 2009
- Economic liberalization
- Coping strategies
- climate change
- drought
- vulnerability
- Mozambique
- economics
- Mozambique
- Africa
- Library Collection RecordIn this study, we asked the Ariaal herders of northern Kenya to answer 'why, what and how' they classified landscape, and assessed and monitored the biodiversity of 10 km2 of grazing land.…Publication Date 2009
- Anthropogenic indicators
- Ariaal
- biodiversity
- Indigenous knowledge
- Grazing suitability
- landscape classification
- Landscape potential
- traditional knowledge
- pastoralism
- monitoring
- grazing
- grasslands
- land use
- Soil Condition
- livestock
- conservation
- management
- Kenya
- Africa
- Library Collection RecordThe Global Assessment of Soil Degradation (GLASOD) has been the most influential global appraisal of land quality in terms of environmental policy. However, its expert judgments were never tested for…Publication Date 2009
- GLASOD
- land degradation
- Expert judgment
- Qualitative response model
- Non-parametric analysis
- Soil Condition
- degradation
- environmental impact
- GIS
- land use
- mapping
- crop production
- Africa
- Library Collection RecordFires threaten human lives, property and natural resources in Southern African savannas. Due to warming climate, fire occurrence may increase and fires become more intense. It is crucial, therefore,…Publication Date 2009
- Burned area estimation
- Fire probability
- GLM
- Hierarchical partitioning
- logistic regression
- MODIS fire data
- spatial autocorrelation
- fire ecology
- savanna
- modelling
- climate change
- GIS
- East Caprivi
- Namibia
- Africa
- Library Collection RecordNatural resource management may change local and regional ecosystems, especially in drought-prone environments. Livestock are commonly kept as a source of capital in agriculturally dominated…Publication Date 2009
- desertification
- erosion
- Holistic management
- riparian grazing
- management
- degradation
- communal farming
- ecosystem dynamics
- livestock
- watering points
- Zimbabwe
- Africa
- Library Collection RecordHuman land use such as pastoralism may be a key determinant of wildlife populations. We studied the influence of land use on wildlife and livestock in south-western Kalahari, Botswana, during the wet…Publication Date 2009
- Carnivore
- distance
- herbivore
- Mammal
- Ostrich
- savanna
- land use
- conservation
- national parks
- livestock
- pastoralism
- cattle
- species richness
- Africa
- Library Collection RecordWe detail the impact of abandoned traditional settlements (or bomas) on plant and nutrient succession in the Amboseli ecosystem, southern Kenya, over the course of a century. Plant and soil data were…Publication Date 2009
- biomass
- Nutrient hotspots
- pastoralism
- patch dynamics
- species richness
- wildlife
- Abandoned lands
- soil fertility
- vegetation dynamics
- savanna
- Africa
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