Rangeland Ecology & Management
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- 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 Record1. Gradients of animal impact known as piospheres tend to develop around artificial watering points, particularly in arid zones. Such grazing gradients represent a potential opportunity for…Publication Date 2006
- animal impact
- piosphere
- watering points
- livestock
- species richness
- ecosystem ecology
- rangelands
- grazing
- management
- disturbance
- stocking rates
- Africa
- Library Collection RecordAbstract The paleoenvironmental context of plant and animal species evolution (including glacial migrations and population separations) is based on a very patchy and incomplete paleo-phytogeographic…Publication Date 2008
- Africa
- glacial–interglacial cycles
- grasslands
- human evolution
- phytogeography
- Pleistocene
- savannas
- tropical forests
- vegetation modeling
- palaeoemvironment
- 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 RecordA treatment of the Rubiaceae of Angola is presented based on herbarium collections kept at BM, BR, COI, K, LISC, LISU, LUA, LUAI, P, and PRE. The basionyms, relevant synonyms, and types from Angola…Publication Date 2008
- biodiversity
- flora
- tropical Africa
- taxonomy
- Africa
- Library Collection RecordUsing new tools (boosted regression trees) in predictive biogeography, with extensive spatial 23 distribution data for >19 000 species, we developed predictive models for South African plant…Publication Date 2006
- modelling
- species richness
- ecosystem ecology
- Alien invasive species
- grasslands
- Africa
- Library Collection RecordThe relationship between above and belowground species composition has been researched in forests, grasslands, and wetlands to understand what mechanisms control community composition. I thoroughly…Publication Date 2007
- grasslands
- plant community ecology
- plant production
- plant autecology
- species richness
- seed banks
- management
- 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 RecordAims Mapping vegetation through remotely sensed images involves various considerations, processes and techniques. Increasing availability of remotely sensed images due to the rapid advancement of…Publication Date 2008
- vegetation mapping
- remote sensing sensors
- image processing
- image classification
- mapping
- remote sensing
- 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 RecordThere is a perception that sustained frequent fires cause nitrogen limitation over the long term (50–100 y) by volatilizing the nitrogen in soil, plant biomass and litter. Here we test this…Publication Date 2008
- soils
- fire ecology
- management
- Nitrogen cycle
- Africa
- Library Collection RecordPatches of wooded vegetation in nutrient-poor grassland characteristically contain high soil moisture and nutrient availability compared with surrounding grassland. These 'islands of fertility…Publication Date 2007
- grasslands
- soil moisture
- soil nutrients
- soil fertility
- animal impact
- fire
- ecosystem ecology
- Africa
- Library Collection RecordFlood depth has been frequently used to explain the distribution of plant species in seasonally flooded grasslands, but its relation with vegetation production has remained ambiguous. The…Publication Date 2007
- grasslands
- plant production
- hydrology
- plant autecology
- Africa
- Library Collection RecordSystematic conservation planning is widely considered the most effective approach for designing protected area and other ecological networks. However, many conservation practitioners still ignore…Publication Date 2006
- conservation
- management
- biodiversity
- Economic Aspects
- 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 RecordSummary Community-based natural resource management (CBNRM) remains a popular policy with many international funding institutions, in spite of growing evidence of its disappointing outcomes. It is…Publication Date 2006
- community-based natural resource management
- central and southern Africa
- Africa
- Library Collection RecordSummary In this paper, we draw upon models from ecology and New Institutional Economics to examine the various mechanisms through which globalization can lead to loss in resilience of ecosystems and…Publication Date 2006
- Poverty
- Globalization
- environment
- ecosystem
- resilience
- institutions
- semi-arid savanna
- socio-economic aspects
- economics
- Africa
- Library Collection RecordHistorically, agriculturally induced CO2 release from soils has contributed to rising levels in the atmosphere. However, by using appropriate management, soils can be turned into carbon sinks. Many…Publication Date 2007
- carbon sequestration
- drylands
- modelling
- soil carbon
- farming systems
- tropics
- global warming
- carbon dioxide
- management
- subsistence agriculture
- socio-economic aspects
- Africa
- Library Collection RecordSoil erosion and subsequent degradation has been a contributor to societal collapse in the past and is one of the major expressions of desertification in arid regions. The revised universal soil loss…Publication Date 2008
- Arid and semi-arid regions
- cryptobiotic soil crusts
- cryptogams
- Cyanobacteria
- Erosion modeling
- Universal Soil Loss Equation
- 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 RecordSoil texture is an important influence on nutrient cycling in upland soils, with documented relationships between mineral particle size distribution and organic matter retention, nitrogen (N)…Publication Date 2006
- soil texture
- N mineralization
- riparian soils
- Phugwane River
- Kruger National Park
- Soil Condition
- ecology
- soil organic carbon
- soil fertility
- Africa
- Library Collection RecordIn the low-rainfall areas of much of Africa and Asia, small ruminants represent the principal economic output, contributing a large share of the income of farmers. Animal numbers have increased over…Publication Date 2008
- small ruminants
- Feeding strategies
- Cereal crop residues
- Agro-industrial by-products
- Fodder shrubs
- Dry environment
- technology adoption
- Africa
- Library Collection RecordThis paper deals with the effects of farming systems linked to feeding aspects on the composition and quality of ewe and goat milk. When systems based on grazing and indoor systems are compared, the…Publication Date 2007
- Dairy goat
- Dairy sheep
- milk composition
- Milk quality
- System of production
- pasture
- Feeding system
- goats
- forage quality
- fodder quality
- animal nutrition
- animal production
- Africa
- Library Collection RecordThe morphometrics of mandible and teeth of mixed-breed goats on rangeland were analyzed to investigate the association between the oral apparatus and diet type. Canonical relationship between sets of…Publication Date 2007
- diet
- grazing
- Mandible
- Jaw
- Incisor
- Molar teeth
- goats
- rangelands
- diet selection
- forage quality
- foraging ecology
- Africa
- Library Collection RecordEthnobotanical field studies in the Graaff-Reinet and Murraysburg regions (southeastern Karoo) have revealed a wealth of traditional knowledge on medicinal plants and their uses amongst elderly…Publication Date 2008
- Cape Dutch culture
- Ethnobotanical survey
- Khoi-San culture
- medicinal plants
- Phytotherapy
- Southeastern Karoo
- 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 RecordIn 1998, a restoration field trial was initiated in a catchment near Wellington (Western Cape, South Africa) to determine whether fynbos riparian scrub vegetation cleared of woody invasive alien…Publication Date 2008
- biological invasions
- fire
- Follow-up treatment
- management
- restoration ecology
- Alien invasive species
- seeds
- biodiversity
- Africa
- Library Collection RecordInvasion by alien woody species is a major threat to biodiversity and ecosystem function in the Fynbos and Grassland Biomes of South Africa, and riparian areas are particularly affected. Large stands…Publication Date 2008
- Acacia longifolia
- Grassy fynbos
- invasive alien plants
- riparian vegetation
- Africa
- Library Collection RecordRecovery of indigenous species subsequent to the clearing of invasive alien plants (IAPs) is crucial for ecosystem recovery to occur. However, cleared sites are often just left in the hope that…Publication Date 2008
- biological invasions
- Ecosystem repair
- exotic plants
- diversity
- resilience
- restoration
- Working for Water
- Alien invasive species
- ecosystem dynamics
- monitoring
- restoration ecology
- management
- Africa
- Library Collection RecordWorking for Water forms part of the Expanded Public Works Programme of the South African Government, aimed at the sustainable management of natural resources through the control and management of…Publication Date 2008
- Clearing unit reference values
- costs
- invasive alien plants
- net present value
- Person days
- riparian
- WIMS
- Workload
- Alien invasive species
- Economic Aspects
- management
- socio-economic aspects
- Africa
- Library Collection RecordThe impacts of invasive alien plants (IAP) and their subsequent clearing by the Working for Water Programme (WfW) on (a) overstorey (woody plant) vegetation structure, (b) invasion intensity (…Publication Date 2008
- biological invasions
- Ecosystem repair
- grasslands
- Overstorey aerial cover
- restoration ecology
- savannas
- 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 RecordRiparian zones are complex disturbance-mediated systems that are highly susceptible to invasion by alien plants. They are prioritized in most alien-plant management initiatives in South Africa. The…Publication Date 2008
- biological invasions
- Community recovery
- invasive alien plants
- restoration ecology
- Soil-stored seeds
- species assemblages
- seed banks
- Alien invasive species
- disturbance
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- biodiversity
- grasslands
- Alien invasive species
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- conservation
- management
- ecosystem dynamics
- grasslands
- Africa
- Library Collection RecordNo abstract availablePublication Date 2008
- fire ecology
- management
- conservation
- national parks
- Africa
- Library Collection RecordTraditional health care is utilized by a large majority of the population in southern Africa. This is particularly true of treatment for mental health problems. A large part of the treatment regimes…Publication Date 2007
- Anxiety disorder
- depression
- Monoamine oxidase
- Parkinson's disease
- Traditional medicine
- medicinal plants
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- soils
- soil fertility
- national parks
- ecosystem ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- grasslands
- urban environment
- rurla environment
- ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- seed banks
- Alien invasive species
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- grasslands
- ecosystem ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- carbon dioxide
- savanna
- climate change
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- hydrology
- management
- ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- Africa