Rangeland Ecology & Management
Get reliable science
Toggle Search
Result Type
Collection
Keywords
Document Type
Displaying 151 - 200 of 249 results
- Library Collection RecordThe sediments of Holocene floodplain banks in several river catchments in the southern Cape region, South Africa, were sedimentologically investigated and radiometrically dated. The study resulted in…Publication Date 2010
- Floodplain formation
- fluvial geomorphology
- Environmental change
- palaeobotany
- Gourits River basin
- Cape region
- South Africa
- Library Collection RecordThis paper analyses the claim of Sumberg [Sumberg, J., 2002. The logic of fodder legumes in Africa. Food Policy 27, 285-300] that there is a [`]logic of fodder legumes' in Africa based on an…Publication Date 2004
- fodder legumes
- Fodder grasses
- crop residues
- Africa
- Crop-livestock systems
- Development narratives
- Participatory approaches
- Livestock policy
- fodder production
- fodder quality
- livestock
- agriculture
- Africa
- Library Collection RecordLittle is known about the sequence of climate and environmental change in southern Africa during the last glacial period, in spite of the intimations from records, such as Antarctic ice cores and…Publication Date 2009
- Late Pleistocene
- climate variability
- stalagmites
- stable isotopes
- palaeobotany
- palaeoclimate
- South Africa
- Library Collection RecordThe impacts of climate change are expected to be generally detrimental for agriculture in many parts of Africa. Overall, warming and drying may reduce crop yields by 10-20% to 2050, but there are…Publication Date 2009
- Season failure
- Poverty
- Agricultural systems
- Targeting
- climate change
- global warming
- agriculture
- drought
- animal production
- plant production
- livestock
- Sub-Saharan Africa
- Library Collection RecordIn previous papers we have considered the optimal mix of biodiversity in semi-arid rangelands, focusing on the steady state. This paper addresses the question of conservation in the optimal use of…Publication Date 2004
- rangelands
- biodiversity
- Managed
- Natural
- conservation
- management
- fire ecology
- grazing
- livestock
- vegetation dynamics
- Africa
- Library Collection RecordNon-equilibrium processes in savannas are poorly understood because little data is available on how tree abundance has changed over long periods of time. Here I analyse fossil pollen and charcoal…Publication Date 2004
- pollen
- charcoal
- Cyclical
- Phase and transition
- stochastic
- Fourier analysis
- savanna
- plant autecology
- palaeobotany
- 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 RecordCompetition and compatibility between livestock and wildlife in Africa has been a point of considerable speculation, with implications for conservation. However, controlled replicated experiments are…Publication Date 2005
- livestock
- Africa
- Dung counts
- Trait-mediated effects
- indirect effects
- conservation
- game farming
- wildlife
- management
- 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 communal areas of NE Zimbabwe, feed resources are collectively managed, with herds grazing on grasslands during the rainy season and mainly on crop residues during the dry season, which creates…Publication Date 2011
- Crop-livestock interactions
- Dynamic modelling
- cattle
- crop residues
- grasslands
- livestock
- foraging ecology
- soil organic carbon
- soil fertility
- management
- communal farming
- Zimbabwe
- 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 RecordPrevious archaeological and palaeoenvironmental work relating to the late Quaternary of the Lesotho highlands, southern AFrica, is reviewed. Emphasis is placed upon the region's importance for…Publication Date 1996
- palaeobotany
- palaeoenvironmental data
- Africa
- Library Collection RecordEvidence on late Quaternary palaeoenvironments of the western and southwestern Cape of South Africa has facilitated detailed reconstructions mainly for the mountains, where organic sediment…Publication Date 1996
- palaeobotany
- palaeoecology
- Africa
- Library Collection RecordThe Namib and Kalahari deserts preserve evidence of a long history of aridification in southern Africa. The earliest sedimentation within the Kalahari Basin dates to the Late Cretaceous, but the…Publication Date 1993
- palaeobotany
- palaeoclimate
- palaeoecology
- Africa
- Library Collection RecordMultiple land-use designs are becoming increasingly necessary in semi-arid Africa as growing populations focus numerous production systems onto spatially limited arable lands. Engineering distinct…Publication Date 1993
- land use
- fodder production
- agriculture
- irrigation
- livestock
- carrying capacity
- pastoralism
- management
- Africa
- Library Collection RecordThe Pliocene epoch represents an important transition from a climate regime with high-frequency, low-amplitude oscillations when the Northern Hemisphere lacked substantial ice sheets, to the typical…Publication Date 1994
- palaeobotany
- climate change
- Africa
- Library Collection RecordThe development of savanna-type grasslands is a relatively recent phenomena in East Africa. The stable carbon isotopic composition of paleosol carbonates from fossil localities in East Africa show…Publication Date 1992
- palaeobotany
- grasslands
- savanna
- Africa
- Library Collection RecordIn African semi-arid savannas livestock production frequently dominates human activity, but it has been claimed that wildlife ranching can be more profitable than extensive beef production.…Publication Date 1994
- livestock production
- overstocking
- stocking rates
- Economic Aspects
- livestock
- rangelands
- cattle
- animal production
- wildlife
- Africa
- Library Collection RecordThe general characteristics of global vegetation during the middle Pliocene warm period can be reconstructed from fossil pollen and plant megafossil data. The largest differences between Pliocene…Publication Date 1996
- palaeoclimate
- palaeobotany
- Africa
- Library Collection RecordRegional water budget tendencies reported by 14C-dated field data are correlated with Late Quaternary cooling and warming phases. Areal frequency distribution analysis of these correlations shows…Publication Date 1989
- palaeobotany
- palaeoclimate
- Africa
- Library Collection RecordA general model of rotational grazing is constructed where in each of P consecutive time periods a mob of animals grazes one of m paddocks. The optimal grazing sequence is that which maximises their…Publication Date 1995
- grazing
- management
- livestock
- fodder production
- foraging ecology
- diet selection
- forage quality
- Africa
- Library Collection RecordA utilitarian simulation model of botanical composition of ruminant diets on rangelands is proposed. It emphasizes the use of forage resource diversity within the range ecosystem context. The forage…Publication Date 1993
- modelling
- Forage Quantity
- rangelands
- species richness
- biodiversity
- cattle
- forage quality
- livestock
- grazing
- ecology
- Africa
- Library Collection RecordOne of the major issues in agropastoral development is the relationship of livestock and crop production. Does the introduction of crop cultivation on to productive rangeland deprive livestock of a…Publication Date 1991
- plant production
- animal nutrition
- animal production
- rangeland condition
- rangelands
- drought
- management
- stocking rates
- livestock
- Africa
- Library Collection RecordThis paper discusses options for improvement of the Borana pastoralist system. Overall, the prospects for increasing offtake of livestock or milk, by improvements in marketing facilities alone are…Publication Date 1988
- pastoralism
- animal production
- management
- drought
- livestock
- Supplementary Feeding
- Africa
- Library Collection RecordRainfall and the length of the growing seasons are highly variable in the semiarid East African rangelands such as Borana. Dry years occur about one year in five and droughts one year in twenty.…Publication Date 1988
- pastoralism
- animal production
- management
- drought
- livestock
- Supplementary Feeding
- cattle
- livestock
- Africa
- Library Collection RecordThe design of improved technology or production policies depends upon evaluation of alternative options in terms of their efficiency. Measurement of the efficiency of a pastoral livestock system may…Publication Date 1986
- policies
- pastoralism
- carrying capacity
- livestock
- rangeland condition
- Economic Aspects
- management
- Africa
- Library Collection RecordIt is as important to measure the degree of risk involved as it is to measure the probable return from an investment project. The expected returns from such a project are usually calculated from a…Publication Date 1977
- rangeland condition
- agriculture
- Economic Aspects
- livestock
- Africa
- Library Collection RecordMethods used in the analysis of 1163 pieces of charcoal from Elands Bay, South Africa, are described. Results from three archaeological sites (Tortoise Cave, Spring Cave and Mike Taylors Midden) show…Publication Date 1992
- South Africa
- Elands Bay
- Holocene
- environment
- charcoal
- palaeobotany
- Africa
- Library Collection RecordThe Mfolozi and Hluhluwe Valleys of southeastern Africa are representative of a sub-tropical biome and have archaeological evidence for farming settlement spanning more than 1500 years. By collecting…Publication Date 1984
- southern Africa
- sub-tropics
- farming communities
- soils
- plant communities
- site distributions
- iron production
- Environmental change
- conservation
- palaeobotany
- agriculture
- Africa
- Library Collection RecordArtifact occurrences from the alluvial fills of the Lower Vaal Basin, South Africa, are summarized with reference to a revised stratigraphic framework for these deposits. The Older Gravels, Younger…Publication Date 1978
- palaeobotany
- Africa
- Library Collection RecordSPUR (Simulation of Production and Utilization of Rangelands) is a physically-based model designed to simulate the complexity of rangeland ecosystems (Wight and Skiles, 1987). Results of extensive…Publication Date 1996
- model evaluation
- Rangeland ecosystems
- Spur
- modelling
- management
- soils
- temperature
- livestock
- Africa
- Library Collection RecordCompared with monospecies stocking, numerous studies substantiate that multispecies stocking can efficiently increase use within and among the mosaic pattern of rangeland plant life forms. However,…Publication Date 1990
- rangeland
- livestock
- management
- diet selection
- foraging ecology
- cattle
- sheep
- vegetation dynamics
- Africa
- Library Collection RecordLearning early in life may play an important role in the development of dietary habits and foraging skills of domestic ruminants. In this review we (1) explore the theoretical and empirical bases of…Publication Date 1987
- diet selection
- foraging ecology
- livestock
- management
- Africa
- Library Collection RecordThe carrying capacity concept was developed from animal ecology, and applied to rangeland management in order to assess sustainable livestock stocking rates. In it, long-term ecological…Publication Date 1994
- rangelands
- management
- livestock
- carrying capacity
- stocking rates
- agriculture
- sustainability
- Africa
- Library Collection Record
185 Rangelands
Effective integration of the three main goals of rangeland management - economic gain through livestock production, management of game animals for recreational use, and conservation of biological…Publication Date 1992- rangelands
- biodiversity
- Economic Aspects
- grazing
- livestock
- conservation
- animal impact
- animal production
- management
- fire
- restoration ecology
- Africa
- Library Collection RecordWe begin by stressing that relevant and adequate information is an essential ingredient of efficient decision-making processes aimed at optimising the performance of livestock enterprises. Such…Publication Date 1995
- livestock
- Health production
- Africa
- Monitoring methods
- decision support systems
- management
- animal production
- monitoring
- Africa
- Library Collection RecordDisease of domestic animals on rangelands is caused by a wide variety of agents (some infectious and some non-infectious). Disease is primarily a function of the ecosystem, where a shift in the…Publication Date 1992
- livestock
- disease
- rangelands
- ecosystem ecology
- economics
- Africa
- Library Collection RecordThe Karoo Sequence spans an age ranging from Carboniferous to Jurassic and occurs in intra-cratonic and graben-rift basins throughout southern Africa. All of the subcontinent 039;s bituminous,…Publication Date 1990
- plant anatomy
- palaeoecology
- grasslands
- palaeobotany
- Africa
- Library Collection RecordPetrographical and palynological coal-quality investigations relating to variations in one of the best-known and well-researched coalfields in Africa, the Witbank coalfield, and one of the most…Publication Date 1989
- palaeobotany
- Africa
- Library Collection RecordOne of the major diseases affecting human beings and livestock in Africa, trypanosomiasis--known in its common human form as sleeping sickness--remains resistant to general eradication, a wide belt…Publication Date 1979
- disease
- livestock
- insects
- economics
- ecology
- Africa
- Library Collection RecordNo abstract availablePublication Date 1991
- palaeobotany
- grassland
- soils
- Africa
- Library Collection RecordThe fossil locality of Fort Ternan, Kenya, preserves the remains of the middle Miocene hominoidKenyapithecus wickeri, and a reconstruction of the paleoenvironment of this site offers important…Publication Date 1991
- middle Miocene
- Bovids
- functional morphology
- Kenyapithecus
- paleoecology
- hominoid evolution
- palaeobotany
- Africa
- Library Collection RecordStructural and stratigraphic aspects of the Lebowa Granite Suite (the granites) and Rustenburg Layered Suite (the basic rocks) are examined and compared in various compartments of the Bushveld…Publication Date 1990
- palaeobotany
- Africa
- Library Collection RecordAn extensive search was made for distinctive shock-metamorphic effects in order to test the theory that the Bushveld Complex (BC) was formed by the impact of large extraterrestrial objects. Field and…Publication Date 1990
- palaeobotany
- Africa
- Library Collection RecordPaleomagnetic pole positions, ocean-floor magnetic anomalies and least-squares fits of continental edges show that most Phanerozoic orogenic belts have formed at or near the borders of continents and…Publication Date 1976
- palaeobotany
- Africa
- Library Collection RecordA pollen sequence in a relatively young hyrax dung midden in the Orange Free State, South Africa, shows marked changes in composition which can be related to environmental fluctuations. The midden…Publication Date 1992
- palaeobotany
- Africa
- Library Collection RecordPollen analysis of vlei or swamp sediments from the Nuweveldberg Mountains in the Central Karoo yields a vegetation history spanning the last 760 years. It sheds light on the local vegetation shifts…Publication Date 1989
- palaeobotany
- palaeoclimate
- Africa
- Library Collection RecordResults of fossil pollen studies in Eastern, Central and Southern Africa covering the last 32,000 years are surveyed in this paper. This research, conducted between 1951 and 1985, was mostly…Publication Date 1988
- palaeobotany
- Africa
- Library Collection RecordPollen spectra in a peat deposit from a mountainous area near Tate Vondo in Venda have been grouped into three zones. The oldest zone of c. 12,000-10,000 yr B.P. contains mainly grassland and fynbos…Publication Date 1987
- palaeobotany
- Africa
- Library Collection RecordPollen analyses of rare spring deposits in the Transvaal, South Africa, ranging back to roughly 35 000 B.P., were carried out. A photographic record of 140 types of palynomorphs was made. Indicators…Publication Date 1982
- palaeobotany
- Africa