Rangeland Ecology & Management
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- Library Collection RecordHerbivores are regulated by predation under certain environmental conditions, whereas under others they are limited by forage abundance and nutritional quality. Whether top-down or bottom-up…Publication Date 2010
- savanna
- ecosystem dynamics
- ecology
- animal production
- population ecology
- Africa
- Library Collection RecordA thorough understanding of the role of microbes in C cycling in relation to fire is important for estimation of C emissions and for development of guidelines for sustainable management of dry…Publication Date 2004
- C isotopes
- C sequestration
- CO2 flux
- Dry and rainy season
- fire effects
- Microbial biomass C
- savanna
- Substrate-induced respiration
- carbon dioxide
- carbon dynamics
- fire
- management
- soils
- grasslands
- ecosystem ecology
- Africa
- Library Collection RecordWooded rangelands are a vast grazing land resource globally, including shrublands, savannas and forested ranges. They generally provide forage year-round for small ruminants and they are vitally…Publication Date 2005
- diet selection
- Physical and chemical plant defences
- anti-quality
- grazing behaviour
- grazing
- rangelands
- savanna
- goats
- sheep
- foraging ecology
- livestock
- forage quality
- Africa
- Library Collection RecordAbstract The knowledge of relative performance of plants across environmental gradients is critical for their effective management and for understanding future range expansion. Pennisetum setaceum is…Publication Date 2014
- Alien grass
- Ecological invasions
- competition
- disturbance
- Seedling translocation
- Transplant experiment
- Alien invasive species
- management
- grasslands
- savanna
- ecosystem ecology
- restoration ecology
- South Africa
- Library Collection RecordEnumeration of carbon stocks at benchmark sites is a necessary activity in assessing the potential carbon sequestration and possible generation of credits through restoration of intensively impacted…Publication Date 2011
- allometry
- basal area
- biomass
- carbon
- Lowveld
- savanna
- Mesophyllous
- Microphyllous
- rainfall gradient
- volume
- carbon sequestration
- restoration
- rainfall
- South Africa
- Library Collection RecordHere we describe the fine root distribution of trees and grasses relative to soil nitrogen and water profiles. The primary objective is to improve our understanding of edaphic processes influencing…Publication Date 2010
- nitrogen
- root biomass
- savanna
- Trees and grasses
- water
- [delta]13C
- [delta]15N
- soils
- grasslands
- ecology
- ecosystem dynamics
- soil nutrition
- Kruger National Park
- South Africa
- Library Collection RecordFour plant functional types (PFTs) were used to compare the vegetation structure of an alien-invaded Acacia nilotica savanna with one of negligible invasions. Heights, canopy covers and species…Publication Date 2010
- alien plants
- canopy cover
- composition
- physiognomy
- plant functional types
- plant height
- species richness
- savanna
- Alien invasive species
- vegetation dynamics
- KwaZulu-Natal
- South Africa
- Library Collection RecordNo abstract availablePublication Date 2009
- Soil Condition
- savanna
- ecosystem ecology
- Kruger National Park
- South Africa
- Library Collection RecordNo abstract availablePublication Date 2009
- savanna
- vegetation dynamics
- Africa
- Library Collection RecordNo abstract availablePublication Date 2009
- carbon sequestration
- savanna
- ecology
- KwaZulu-Natal
- South Africa
- Library Collection RecordSavanna covers about two-thirds of Africa, with forage quantity and quality being important factors determining the distribution and density of wildlife and domestic stock. Testing hypotheses about…Publication Date 2010
- forage
- quality
- remote sensing
- hyperspectral
- herbivory
- Foliar
- nitrogen
- protein
- Polyphenol
- mopane
- savanna
- forage quality
- Forage Quantity
- livestock
- mapping
- management
- land use
- Africa
- Library Collection RecordFire is a prominent disturbance factor and a major force of environmental change especially in the African savannas. The development of an accurate system to map and monitor fires on the African…Publication Date 2005
- Savanna fires
- Low-resolution bias
- Burned-area mapping
- Seasonal-mosaic
- Africa
- savanna
- fire
- remote sensing
- mapping
- Africa
- Library Collection RecordThe remote sensing of fire severity is a noted goal in studies of forest and grassland wildfires. Experiments were conducted to discover and evaluate potential relationships between the…Publication Date 2005
- Fire severity
- savannah
- Surface reflectance
- Char
- nitrogen
- carbon
- Burn severity index
- Linear and non-linear spectral unmixing
- Elemental emission factor
- savanna
- fire ecology
- GIS
- remote sensing
- grasslands
- modelling
- Africa
- Library Collection RecordA new integrated approach, involving continuum-removed absorption features, the red edge position and neural networks, is developed and applied to map grass nitrogen concentration in an African…Publication Date 2004
- Hymap imagery
- Absorption features
- Continuum removal
- red edge position
- Foliar nitrogen concentration
- Savanna rangelands
- savanna
- rangelands
- mapping
- plant production
- grasslands
- forage quality
- remote sensing
- conservation
- national parks
- Africa
- Library Collection RecordThe remote sensing of pasture quality as determined by nitrogen, phosphorous, potassium, calcium and magnesium concentration is critical for a better understanding of wildlife and livestock feeding…Publication Date 2004
- Field spectra
- Absorption features
- bootstrapping
- Continuum removal
- Savanna rangelands
- remote sensing
- forage quality
- management
- savanna
- rangeland condition
- Africa
- Library Collection RecordThe lack of information on the vegetation status before the use of fire as a management tool in protected areas leads to drastic destruction of the natural vegetation and biodiversity. This paper…Publication Date 2004
- fire risk
- savanna
- LANDSAT-ETM
- Tasseled Cap
- simulation
- national park
- Senegal
- fire
- hazard assessment
- management
- national parks
- modelling
- remote sensing
- Africa
- Library Collection RecordPalynological and sedimentological data from a core extracted from Lake Eteza shed new light on the Holocene vegetation and climate history in KwaZulu-Natal and can be linked to regional and global…Publication Date 2010
- forest reconstruction
- Vegetation history
- southern hemisphere
- African coast
- human impact
- palaeobotany
- Africa
- Library Collection RecordPollen analysis of a 12.8-m-long core (R96-I) from the southern basin of Lake Rukwa (Tanzania, 8°S, 33°E, 793 m a.s.l.) provides new information on the vegetation history of central eastern Africa…Publication Date 2005
- palaeobotany
- pollen
- Late Quaternary
- southern Tanzania
- vegetation dynamics
- lake levels
- climate change
- Africa
- Library Collection RecordTo reconstruct the response of vegetation to abrupt climate changes during the last glacial we have compiled pollen records from the circum-Atlantic tropics between 23° 176' N and 23° 176…Publication Date 2010
- palaeobotany
- climate change
- South America
- Library Collection RecordPollen analysis of material from a variety of sediment types including those from ponds, streams, a rock-shelter and hyrax dung accumulations in the Blydefontein Basin (31°09'S, 25°05'E,…Publication Date 2005
- palaeobotany
- Africa
- Library Collection RecordAbstract Woody plant encroachment is a common consequence of disturbance in savannas. Grazers and browsers interfere with sapling establishment dynamics by direct consumption of plant tissue,…Publication Date 2013
- Acacia
- browsing
- grazing
- mesic savanna
- tree sapling biomass
- woody plant encroachment
- indigenous encroaching species
- savanna
- soil nutrients
- ecosystem ecology
- vegetation dynamics
- South Africa
- Library Collection RecordPerennial grasses are a dominant component of many vegetation formations and provide important ecosystem services including supporting herbivores and preventing soil erosion. Despite their importance…Publication Date 2010
- demography
- Density-dependent mortality
- disturbance
- Intra-specific competition
- Tuft mortality
- survival
- Grass mortality
- savanna
- fire ecology
- ecosystem services
- Namibia
- Africa
- Library Collection RecordThe ReSaKo project undertook extended fieldwork across southern Cameroon to explore the palaeoenvironmental information recorded in the alluvial sediments of equatorial African rivers. 160 hand-…Publication Date 2011
- Alluvial sediments
- Palaeosurfaces
- Equatorial Africa
- West African monsoon
- Late Pleistocene
- Fluvial rain forest refuges
- palaeobotany
- 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 RecordPaleoenvironmental records derived from pollen, fungal spores, and microscopic charcoal from Lake Baringo, Kenya, reveal a largely dry environment in the East African region since AD 1650. The dry…Publication Date 2009
- Paleoenvironmental changes
- palynology
- land degradation
- Radiocarbon inversion
- palaeobotany
- palaeoclimate
- palaeoenvironmental data
- East Africa
- Library Collection RecordA paleo-environmental record covering the last 16 ka (16,000 cal yrs BP) from the eastern areas of the summer rainfall region in South Africa is presented. This area is until now sparsely…Publication Date 2009
- climate change
- pollen
- stable isotopes
- palaeobotany
- South Africa
- Library Collection RecordThe carbon isotope signature of fossil phytoliths (silica bodies produced in abundance in the tissue of grasses) presents a promising tool for reconstructing the biogeography of C3 and C4 grasses…Publication Date 2004
- phytoliths
- carbon isotopes
- C3/C4 grasses
- grasslands
- paleoecology
- palaeobotany
- palaeoecology
- 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 RecordSome of the earliest evidence for modern human behavior has been recovered from the Western Cape Province, South Africa. Archaeological and paleontological sites in the Western Cape are typically…Publication Date 2010
- Modern human behavior
- paleoecology
- Glacial environments
- Middle Stone Age
- Later Stone Age
- palaeobotany
- Western Cape Province
- South Africa
- Library Collection RecordStable carbon isotope analyses have shown that South African australopiths did not have exclusively frugivorous diets, but also consumed significant quantities of C4 foods such as grasses, sedges, or…Publication Date 2005
- Hominins
- Paleodiet
- carbon isotopes
- Sedges
- Termites
- Kruger National Park
- palaeobotany
- Africa
- Library Collection RecordIt is well recognised that local ecological knowledge is an important facet of natural resource management in rural regions of the developing world. However, techniques to assess levels and to…Publication Date 2010
- experts
- local ecological knowledge
- savanna
- Scoring
- traditional knowledge
- management
- Indigenous knowledge
- South Africa
- Library Collection RecordAnthropogenic fires in Africa are an ancient form of environmental disturbance, which probably have shaped the savanna vegetation more than any other human induced disturbance. Despite anthropogenic…Publication Date 2005
- Anthropogenic fires
- Bush encroachment
- Indigenous knowledge of herders
- fire history
- Namibia
- savanna
- Scale dependence
- species richness
- vegetation trends
- fire ecology
- disturbance
- management
- vegetation dynamics
- landscape ecology
- Africa
- Library Collection RecordBurnt daga structures in Iron Age villages serve as proxies for severe drought on the plateau of southern Africa. The distribution of burnt daga remains in two other rainfall areas, KwaZulu-Natal and…Publication Date 2010
- Burnt daga
- Cultural proxies for drought
- El Nino
- Iron age of south-eastern Africa
- palaeobotany
- palaeoclimate
- drought
- rainfall
- south-eastern Africa
- Library Collection RecordThe most common grass phytoliths from "Zambezian" miombos are described here for the first time. Their potential for long term preservation in sediments makes them a useful tool in the…Publication Date 2010
- Poaceae Phytoliths
- Great African Rift
- Mozambique
- Niassa
- Miombo woodlands
- Paleoenvironment
- discriminant analysis
- principal component analysis
- and Cluster Analysis
- palaeobotany
- Africa
- Library Collection RecordSpanning the period from 74-58 160;ka, and being broadly coeval with marine oxygen isotope stage 4 (MIS 4), the Still Bay and Howiesons Poort industries represent important phases in the development…Publication Date 2010
- palaeoenvironment
- Still bay
- Howiesons Poort
- Marine oxygen isotope stage 4
- Modern human behaviour
- palaeobotany
- southern Africa
- Library Collection RecordThe impacts of fire and grazing management on grass nutritional quality in semi-arid savannas may depend on inherent variation in rainfall and soil nutrient status. We examined the effects of grazing…Publication Date 2010
- crude protein
- Grass nutritional quality
- phosphorus
- rainfall
- grazing
- fire ecology
- soil nutrients
- management
- savanna
- forage quality
- plant production
- Northern Cape
- South Africa
- Library Collection RecordAfrican savannas are primarily used as pastures and are subject to changes in climate and management strategies. For sustainable management of these landscapes ecological knowledge on seasonal and…Publication Date 2010
- beta diversity
- Distance decay
- Precipitation gradient
- species richness
- Systematic sampling
- Tree islands
- biodiversity
- savanna
- pasture management
- climate
- management
- sustainability
- rainfall
- monitoring
- conservation
- Namibia
- Africa
- Library Collection RecordThis study investigates the extent to which seed production in Schinus molle is dependent upon pollinators and outcrossing with the objective of understanding whether pollination and seed set could…Publication Date 2010
- biological invasions
- Breeding system
- dioecy
- Peruvian pepper tree
- pollination
- savanna
- Alien invasive species
- seeds
- South Africa
- Library Collection RecordThe Kalahari Transect (KT) is an International Geosphere-Biosphere Programme mega-transect designed to examine hydrological and ecological patterns and processes throughout the savannas of southern…Publication Date 2010
- grass biomass
- Kalahari
- phosphorus
- precipitation
- savanna
- rainfall
- ecology
- hydrology
- plant production
- Soil Condition
- fertilizer
- southern Africa
- Library Collection RecordThe use of pollen analysis of herbivore middens in arid and semi-arid areas has facilitated palaeoenvironmental reconstruction and interpretation in places where this may otherwise be impossible due…Publication Date 2010
- Fynbos
- Hyrax midden
- palynology
- southern hemisphere
- Stable isotope analysis
- Vegetation history
- winter rainfall zone
- palaeobotany
- palaeoecology
- Western Cape
- South 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
- Library Collection RecordSavanna water management is predicated on the hypothesis that surface water availability can be manipulated at scales that influence herbivore distributions. Using a case study in the Kruger National…Publication Date 2005
- water management
- wildlife management
- Semi-arid savannas
- Artificial water sources
- Water source heterogeneity
- rainfall
- Kruger National Park
- savanna
- national parks
- management
- Africa
- Library Collection RecordComparative field studies were conducted on Acacia tortilis (Forsk.) Hyne and Acacia xanthophloea Benth. trees growing in a semi-arid environment in Kibwezi, Kenya, to assess root access to soil…Publication Date 2005
- Acacia
- [delta]13C
- Hydraulic conductance
- savanna
- soil water content
- stomatal conductance
- transpiration
- soil moisture
- plant production
- plant autecology
- drought
- Africa
- Library Collection RecordTransformation of South African succulent thicket in response to grazing is widespread and characterized by the extensive replacement of dense closed-canopy thicket with a [`]pseudo-savanna' of…Publication Date 2005
- desertification
- functional diversity
- Goat browsing
- plant diversity
- grazing
- savanna
- Aerial Photographs
- ecosystem dynamics
- degradation
- Africa
- Library Collection RecordResearch was conducted to investigate rapid chemical responses of Acacia karroo to severe defoliation in a semi-arid, subtropical savanna. A flock of 250 goats reduced available foliage by 87% in a…Publication Date 2005
- alkaloids
- browse
- goats
- Induced responses
- nitrogen
- tannins
- savanna
- foraging ecology
- plant autecology
- Africa
- Library Collection RecordThe study was conducted in a semi-arid savanna of South Africa, dominated by an almost pure stand of Acacia mellifera subsp. detinens (Black Thorn). Due to its invasive habits and suppression of the…Publication Date 2005
- Bush encroachment
- Canopied subhabitat
- soil nutrients
- Uncanopied subhabitat
- savanna
- management
- indigenous encroaching species
- plant production
- Africa
- Library Collection RecordIn evolutionary time frames, grazing by domesticated livestock on the short grass plains of East Africa is a new occurrence resulting in increased animal densities year around and modification to…Publication Date 2005
- evolutionary history of grazing
- Modified-Whittaker plots
- Serengeti ecosystem
- East Africa
- seasonal grazing
- rangelands
- savanna
- grazing
- biodiversity
- vegetation dynamics
- management
- livestock
- animal impact
- Africa
- Library Collection RecordThis paper set out to analyse time-series and spatial livestock data in the arid west of Namibia over a period of 11 years. These were interpreted in the context of rainfall conditions and access to…Publication Date 2004
- carrying capacity
- Central Namib
- desertification
- desert
- Farming system
- Namibia
- range management
- savanna
- Africa
- Library Collection RecordLike other African countries, Madagascar is concerned by vegetation cover degradation especially in savanna ecosystems. In this article, we describe an approach to quantify and localise savanna…Publication Date 2010
- MODIS
- Time series
- STL
- change
- trend
- savanna
- Phenological indicator
- degradation
- remote sensing
- NDVI values
- management
- fire
- Madagascar
- Africa
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