Rangeland Ecology & Management
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Displaying 51 - 100 of 281 results
- Library Collection RecordThe non-selective, soil-applied herbicide tebuthiuron (1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea) is registered for the control of the indigenous encroacher shrub Seriphium plumosum (…Publication Date 2012
- bare patches
- half-life
- Herbicide
- pot experiment
- Seriphium plumosum
- South Africa
- Library Collection RecordThis study investigated the relationship between grazing veld condition and herbaceous plant species richness in the moist Midlands Mistbelt Grassland in KwaZulu-Natal. The observed herbaceous plant…Publication Date 2012
- grazing
- plant-herbivore interactions
- rangeland condition
- veld assessment
- KwaZulu-Natal
- South Africa
- Library Collection RecordThere is increasing evidence that climate change will be one of the primary challenges facing future development and agriculture. Farmers, whether crop or livestock farmers, will be faced with…Publication Date 2012
- carbon farming
- climate change adaptation
- drought
- Livestock Farmers
- subtropical thicket
- South Africa
- Library Collection RecordSouthern Africa has been recognised as one of the most interesting and important areas of the world from an ecological and evolutionary point of view. The establishment and development of the…Publication Date 2012
- conservation targets
- data combinations
- ecoinformatics
- locality confidence
- species bias
- Turboveg
- South Africa
- Library Collection RecordChanging land cover is a phenomenon that is growing in magnitude and significance, both globally and in South Africa. Changes in land cover include the conversion of natural vegetation to…Publication Date 2012
- South Africa
- Library Collection RecordIn South Africa conservation is still largely framed in terms of Western scientific values, with a focus on material benefits to local communities, whilst little is known about the intangible values…Publication Date 2012
- South Africa
- Library Collection RecordAcacia mearnsii is an introduced Australian acacia in South Africa and has invaded more than 2.5 million ha, primarily establishing in rangeland and riparian areas. Because acacias have the…Publication Date 2012
- Invasion biology
- Isotope ecology
- Nitrogen isotopes
- riparian
- riparian ecology
- nitrogen fixation
- South Africa
- Library Collection RecordStem diameter variations relative to atmospheric vapour pressure deficits and the corresponding differences in pre-dawn and late dusk foliar organic acids were measured in 4 evergreen and 2 partly…Publication Date 2012
- Photosynthetic mode
- Foliar acids
- Stem-diameter variation
- Succulent shrubs
- precipitation
- Vapour pressure deficit
- South Africa
- Library Collection RecordWhat underlies species distribution and species coexistence has long been of key interest in community ecology. Several methods and theories have been used to address this question. However, it still…Publication Date 2012
- ecosystem ecology
- grasslands
- national park
- conservation
- management
- community ecology
- savanna
- Kruger National Park
- South Africa
- Library Collection RecordWith the first democratic elections, there was a great need to rebuild the South African (SA) economy. Some of the major pressing issues that needed priority included addressing the high poverty and…Publication Date 2012
- Land reform programme
- land tenure
- poverty alleviation
- smallholder farmers
- South Africa
- Library Collection RecordTraditional smallholder farming systems are characterized by low yields and high risks of crop failure and food insecurity. Through a biophysical model, PARCHED-THIRST and a socio-economic farming…Publication Date 2012
- farming systems
- food security
- gross margin
- simulation
- vulnerability
- Olifants River Basin
- South Africa
- Library Collection RecordThe aim of this study is to evaluate the efficiency of the small scale farmers for the production year 2006/2007 in Limpopo province using policy analysis matrix. A total of twelve production systems…Publication Date 2012
- Policy analysis matrix
- small-scale farmers
- efficiency
- South Africa
- Library Collection RecordThere seems to be a general consensus that improving agriculture and enhancing agricultural productivity through irrigation will remain a key strategy for rural poverty alleviation in most of the low…Publication Date 2012
- Farmer management skills
- food security
- institutional and organisational arrangements
- poverty alleviation
- revitalisation
- smallholder irrigation schemes
- South Africa
- Library Collection RecordPayments for ecosystem/environmental services (PES) interventions aim to subject ecosystem conservation to market dynamics and are often posited as win-win solutions to contemporary ecological,…Publication Date 2012
- Maloti-Drakensberg
- Lesotho
- South Africa
- payments for ecosystem services
- neoliberal conservation
- marketing
- Maloti-Drakensberg
- South Africa
- Library Collection RecordThe ingression of woody plants into the grassy layer of savannas and grasslands has become a global concern. The increase of woody plants has been primarily attributed over grazing, fire and more…Publication Date 2012
- aerial photography
- fire suppression
- herbivory
- Long-term observations
- Palatable trees
- remote sensing
- Textural analysis
- Time-series analysis
- Unpalatable trees
- woody plant encroachment
- KwaZulu-Natal
- South Africa
- Library Collection RecordThe ecology of Seriphium plumosum is not yet fully understood and therefore requires in-depth research to assist with the control of this encroacher plant. The habitat preferences of the plant were…Publication Date 2012
- bankrupt bush
- rangelands
- shrub encroachment
- Seriphium plumosum (Stoebe vulgaris)
- slangbos
- vaalbos
- Thaba Nchu
- South Africa
- Library Collection RecordLantana camara L. (sensu lato) has a wide range of impacts throughout its global invasive range. Here we review the mechanisms driving its invasion dynamics in South Africa at national (biome,…Publication Date 2012
- biological invasions
- Geographic Distribution
- management
- Kruger National Park
- South Africa
- Library Collection RecordThis study is the first detailed assessment of an invasion by Acacia implexa (Benth.) (screw-pod wattle) anywhere in the world. Approximately 30 000 A. implexa individuals were found spread over…Publication Date 2012
- biological invasions
- Early detection and rapid response
- Emerging invader
- Eradication
- Invasive alien plant
- South Africa
- Library Collection RecordTrait-based community assembly theory suggests that trait variation among co-occurring species is shaped by two main processes: abiotic filtering, important in stressful environments and promoting…Publication Date 2012
- abiotic filtering
- bottom-up control
- community assembly
- competition
- functional diversity
- grasses
- grasshoppers
- herbivores
- savannas
- top-down control
- trait dispersion
- trophic interactions
- South Africa
- Library Collection RecordQuestionsHow does heavy grazing change plant community structure, composition and species richness and diversity in an ecotone between grassland and semi-arid shrub steppe-type vegetation? Does…Publication Date 2012
- South Africa
- Library Collection RecordInvestigating the life history strategy of an African savanna tree, Sclerocarya birrea subsp. caffra (marula) Chantal Vinisia Helm Abstract Lack of understanding of the life history attributes and…Publication Date 2012
- elephant
- fire
- growth
- mortality
- recruitment
- regeneration
- South Africa
- Library Collection RecordSavannah ecosystems exhibit constant transitions between states dominated by trees and states dominated by a combination of trees and grasses. Transitions between these states are driven by…Publication Date 2012
- Antelope
- habitat management
- herbivore
- herbivory
- savannah ecology
- South Africa
- Library Collection RecordThe factors that affect resource selection by a foraging herbivore can vary according to the resources or conditions associated with particular levels of organization in the environment, and to the…Publication Date 2012
- bushveld savanna
- forage selection
- foraging behaviour
- foraging hierarchy
- South Africa
- Library Collection RecordFire is a process that shapes the structure and composition of vegetation in many regions. Species in these regions have presumably evolved life-history strategies that allow success in fire-prone…Publication Date 2012
- determinants of plant community diversity and structure
- fire
- growth
- plant functional traits
- savanna
- shifts in abundance
- topkill
- South Africa
- Library Collection Record1.?Treeless grasslands with climates that can support tree growth are common in upland regions around the world. In South Africa, the upland grasslands are adjacent to lowland savannas in many areas…Publication Date 2012
- savanna
- grasslands
- ecosystem ecology
- fire ecology
- day-length
- determinants of plant community diversity and structure
- fire
- frost
- growth rate
- savanna tree phenology
- temperature
- South Africa
- Library Collection RecordThe structure and composition of savanna vegetation is influenced by resource availability and disturbance. Grasses, a major component of savanna systems, influence the tree-grass balance by…Publication Date 2012
- Acacia karroo
- Acacia nilotica
- Bush encroachment
- competition
- soil nutrients
- KwaZulu-Natal
- South Africa
- Library Collection RecordNo abstract is available for this article.Publication Date 2012
- soils
- South Africa
- Library Collection RecordQuestions: What are the patterns of remotely sensed vegetation phenology, including their inter-annual variability, across South Africa? What are the phenological attributes that contribute most to…Publication Date 2011
- Phytosociology
- AVHRR
- Biomes
- NDVI
- net primary production
- phenology
- Regression tree
- vegetation mapping
- mapping
- remote sensing
- plant production
- rainfall
- diversity
- South Africa
- Library Collection RecordElandskloof was the first land restitution case in post-apartheid South Africa in which the government returned land to a community. The communal property association became dysfunctional, and the…Publication Date 2011
- Communal land systems
- Common property regimes
- Land restitution
- Post-apartheid land reform
- legislation
- subsitence agriculture
- socio-economic aspects
- non-grazing resources
- management
- South Africa
- Library Collection RecordThe feeding behaviour of Xhosa lop-eared (XLE), Nguni (NGN) and Nguni x Boer crossbred (NBC) goat genotypes was compared in a False Thornveld rangeland by recording time spent on browsing, grazing…Publication Date 2011
- rangelands
- foraging
- goats
- South Africa
- Library Collection RecordFour major climato-environmental phases have been identified in the Eastern Cape, Plettenberg Bay-Knysna region and Little Karoo between somewhat before ?40 000 cal. a BP and the present: the Birnam…Publication Date 2011
- palaeoclimate
- southern Africa
- Late Quaternary
- Last Glacial Maximum
- Late Glacial
- Holocene
- South Africa
- Library Collection RecordSubtropical thicket dominated by the leaf- and stem-succulent tree Potulacaria afra (spekboom) accumulates extraordinarily high amounts of soil organic carbon for a semi-arid ecosystem. This has been…Publication Date 2011
- carbon dioxide
- rainfall
- restoration
- Semi-arid ecosystem
- soil organic matter
- carbon sequestration
- climate change
- Eastern Cape Province
- South Africa
- Library Collection RecordDespite the Roggeveldberge comprising the montane heart of the celebrated Hantam-Roggeveld Centre of Plant Endemism (HRC), this section of the southern Great Escarpment in South Africa is botanically…Publication Date 2011
- biogeography
- Endemic speciesFloristics
- Great Escarpment
- Hantam-Roggeveld Centre of Plant Endemism
- Komsberg
- Roggeveld
- phytogeography
- ecology
- plant community
- Great Escarpment
- 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 RecordSpatial prioritizations and gap analyses are increasingly undertaken to allocate conservation resources. Most spatial prioritizations are conducted without specifying the conservation instruments to…Publication Date 2011
- Conservancy
- Community conservation
- Effectiveness
- Gauteng
- off-reserve conservation
- optimal instrument mix
- conservation
- management
- Eastern Cape
- South Africa
- Library Collection RecordBackground: Numerous Cape Floristic Region (CFR) clades are found in the Afromontane region of Africa, causing speculation on the source of their distribution. The southern Escarpment has been…Publication Date 2011
- data analysis
- montane grasslands
- ecosystem ecology
- palaeobotany
- climate change
- rainfall
- South Africa
- Library Collection RecordFour Trifolium repens (white clover) cultivars were evaluated under field conditions to determine the potential of these cultivars to sucessfully develop Rhizobium-associated root nodules. Nodulation…Publication Date 2011
- pasture management
- seeds
- plant production establishment
- nodulation index
- Rhizobia
- thousand seed mass
- white clover
- Western Cape
- South Africa
- Library Collection RecordThe study area was located in the central Free State Grassland biome, but the vegetation partially represented riparian thicket. Leaf carriage patterns of deciduous species were determined from…Publication Date 2011
- foraging ecology
- leaf budding
- leafless period
- mixed feeder
- seasonal changes
- senescing leaves
- rainfall
- temperature
- game
- foraging ecology
- Forage Quantity
- forage quality
- stocking rates
- plant production
- Wag-‘n-Bietjie Private Nature Reserve
- South Africa
- Library Collection RecordWe assessed the impact of Prosopis invasion and clearing on the grazing capacity of heavily grazed Nama Karoo rangeland in the Beaufort West district of the Western Cape province of South Africa.…Publication Date 2011
- exotic invasive plants
- management
- natural resources
- rangeland condition
- rehabilitation
- alien invasive plants
- grazing
- plant production
- forage quality
- Forage Quantity
- Nama Karoo
- South Africa
- Library Collection RecordThe Roggeveld consists of an island of Mountain Renosterveld (Fynbos biome) surrounded by Succulent Karoo biome vegetation. Since management of abandoned croplands depends on a better understanding…Publication Date 2011
- diversity indices
- Fynbos biome
- old fields
- species richness
- Succulent Karoo biome
- management
- Abandoned lands
- restoration ecology
- Roggeveld
- South Africa
- Library Collection RecordDate of Meeting: 22 Jun 2011 Chairperson: Mr J de Lange (ANC) Documents handed out: application/pdf icon National Treasury: Acid Mine Drainage : Funding 38; Recommendations application/pdf icon…Publication Date 2011
- acid mine drainage
- Parliamentary Report
- South Africa
- southern Africa
- Library Collection RecordFire is a key driver in shaping and maintaining grasslands. Long-term exclusion of fire in moist grasslands has been attempted at Catchment IX (CIX) at Cathedral Peak since 1952. Vegetation was…Publication Date 2011
- Erica evansii
- Leucosidea sericea
- moist grasslands
- tree mortality
- fire ecology
- grasslands
- management
- species diversity
- KwaZulu-Natal
- South Africa
- Library Collection RecordQuantification of the short-term impact of burning in terms of the encroacher shrub Seriphium plumosum and grass tuft mortality, seed germination of the shrub (field and seed bank), aboveground…Publication Date 2011
- bankrupt bush
- mortality
- seed germination
- slangbos
- Stoebe vulgaris
- Seriphium plumosum
- Alien invasive species
- germination
- seed banks
- grassland
- plant production
- seedlings
- fire ecology
- Thaba Nchu
- South Africa
- Library Collection RecordInteractions between mature grass plants and grass seedlings have been found to be both facilitative and competitive. To examine the effects of aboveground and belowground competition on seedling…Publication Date 2011
- competition
- grass seedling
- soil depth
- seedlings
- grasslands
- plant production
- siol depth
- plant autecology
- grazing
- stocking rates
- management
- South Africa
- Library Collection RecordThis study investigated the seasonal and plant species patterns of short-term intake rate (STIR) by Nguni goats fed six common browse species in subhumid subtropical savannas. Six 2-year-old…Publication Date 2011
- browser
- conditioning
- feeding behaviour
- herbivore
- intake rate
- goats
- Fodder
- diet selection
- foraging ecology
- management
- South Africa
- Library Collection RecordThe coastal grasslands in north-eastern South Africa are a severely threatened vegetation type rich in plant species, particularly forbs. Many of the forbs have underground storage organs which allow…Publication Date 2011
- C4 grassland
- forb
- persistence
- pine afforestation
- resprouters
- restoration
- conservation
- diversity
- species richness
- fire ecology
- South Africa
- Library Collection RecordThe Grassland biome is the most transformed biome in South Africa, with cultivation and other human impacts having the largest effect on pristine grasslands. Conversion of natural grassland to…Publication Date 2011
- conservation
- Gauteng
- grassland
- old lands
- rehabilitation
- species diversity
- reseeding
- restoration ecology
- Weeds
- plant production
- South Africa
- Library Collection RecordWe assessed past and present vegetation patterns in relation to land use on a municipal commonage in South Africa. We asked specifically whether the reassignment of the commonage for the use of…Publication Date 2011
- Bush encroachment
- land degradation
- land reform
- post-apartheid
- subtropical thicket
- land use
- aerial photography
- Impact assessment
- indigenous encroaching species
- Eastern Cape
- South Africa
- Library Collection Record1. Scaling theory predicts that organisms respond to different scales of resource patchiness in relation to their own size. We tested the hypothesis that the scale of nutrient patchiness mediates…Publication Date 2011
- savanna
- grassland
- ecosystem ecology
- soil nutrients
- fertiliser
- rainfall
- determinants of plant community diversity and structure
- Herbaceous
- heterogeneity
- mopane
- nitrogen
- phosphorous
- soil fertility
- water availability
- woodland
- Klaserie Private Nature Reserve
- South Africa
- Library Collection RecordArthropods are valuable biological indicators owing to strong relationships with primary producers. The supposition that arthropod-plant interactions are constant over seasons was tested using Mantel…Publication Date 2011
- arthropod community composition
- Bloemfontein Dry Grassland
- Mantel test
- plant community composition
- trophic interactions
- insects
- biological indicators
- plant production
- biodiversity
- ecosystem ecology
- grasslands
- Free State province
- South Africa