Rangeland Ecology & Management
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- Library Collection RecordSummary 10.1002/9780470698716.ch20.abs This chapter contains section titled: * Early Grassland Soils * How did Grasslands Arise? * Evolutionary ProcessesPublication Date 2008
- dry continental interiors
- advent of grasses
- urine-impregnated middens
- plant fossils
- ancient aridland ecosystems
- grasslands
- palaeobotany
- ecosystem ecology
- southern Africa
- Library Collection RecordDecomposition is a process that releases nutrient materials in the structure of plant and animal tissues to the soil solution where the nutrients are once again potentially available to plants.…Publication Date 2002
- ecology
- desertification
- soils
- southern Africa
- Library Collection RecordThe geology, climates past and present, and soils of Africa are summarized, as are the effects of fire on the vegetation. The vegetation and animals of each major zone – forest, tropical seasonal…Publication Date 2001
- ecosystem ecology
- biodiversity
- southern Africa
- Library Collection RecordSummary 10.1002/9780470609880.ch8.abs This chapter contains sections titled: * Introduction * Hominid Exploitation of Wetlands Environments and Resources * Early Hominins: Colonization of New…Publication Date 2010
- exploitation of wetlands environments and foods by pre-sapiens hominins
- early hominins - colonization of new environments
- preconditions for encephalization - physiological considerations
- palaeobotany
- southern Africa
- Library Collection RecordSummary Grasses are one of the great successes of evolution. They occur in nearly every habitat from impoverished Antarctic wastes to the lush tropics and are dominant over vast stretches of…Publication Date 2007
- fire ecology
- grasslands
- southern Africa
- Library Collection RecordA thorough understanding of the behavior of fire in grasslands is critical to the minimization of the impact of fires on agricultural and pastoral land as well as the successful management of the…Publication Date 2010
- fire
- grasslands
- management
- species richness
- climate change
- fire ecology
- agriculture
- pastoralism
- southern Africa
- Library Collection RecordSummary 10.1002/9780470292136.ch4.abs This chapter contains sections titled: * Objectives for This Chapter * Introduction * Factors Influencing the Agricultural Use of Animals * Animal Distribution…Publication Date 2008
- food production
- physiological adaptation
- buffalo
- livestock
- veterinary service
- agriculture
- management
- sustainability
- animal production
- southern Africa
- Library Collection RecordNo Abstract available.Publication Date 2003
- grasslands
- management
- agriculture
- southern Africa
- Library Collection RecordSummary Grasslands are located in areas with precipitation ranging between 150 and 1200 mm yr-1 and temperature between 0 and 25 C (Lieth and Whittaker, 1975). Along a precipitation gradient, in…Publication Date 2001
- grasslands
- rainfall
- ecosystem ecology
- southern Africa
- Library Collection Record
160 GRASSLAND SOILS
No Abstract available.Publication Date 2005- grasslands
- soil
- southern Africa
- Library Collection RecordWoody plant encroachment has been widespread in grassland and savanna ecosystems over the past century. This phenomenon jeopardizes grassland biodiversity and threatens the sustainability of pastoral…Publication Date 2001
- grasslands
- soils
- indigenous encroaching species
- southern Africa
- Library Collection RecordThe carbon- and oxygen-isotopic composition of surficial meteoric carbonate (soils, groundwater) is widely used in paleoenvironmental reconstruction in the Quaternary. Temperature, the oxygen-…Publication Date 2007
- Meteoric Carbonate
- carbon isotopes
- Oxygen Isotopes
- Devils Hole
- soil
- C4 plants
- palaeoclimate
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 1969
- nutrition
- forage quality
- southern Africa
- Library Collection RecordAbstract Livestock grazing is often viewed as having detrimental effects on plants and plant communities. Livestock grazing can, however, be managed to be an effective tool for vegetation management…Publication Date 2010
- livestock
- grazing
- nutrition
- ecology
- management
- vegetation dynamics
- ecosystem ecology
- fire ecology
- southern Africa
- Library Collection RecordSummary In this chapter, we discuss climatic fluctuations in northern and eastern Africa during the Holocene and in particular the middle Holocene. The major emphasis is on the Sahara and the…Publication Date 2007
- palaeobotany
- palaeoclimate
- southern Africa
- Library Collection RecordThe pollen record of the late Pleistocene in Africa is poorly resolved due to the paucity of sites combined with the fragmented nature of most sequences. A vegetation history of the continent can,…Publication Date 2007
- palynology
- Vegetation history
- Last Glacial Maximum
- Biomes
- Tropical rain forest
- savannas
- Arid and semiarid biomes
- Afromontane region
- Mediterranean climate regions
- climate change
- Refugium hypothesis
- palaeoecology
- palaeobotany
- palaeoclimate
- palaeoenvironmental data
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 1970
- pasture management
- agriculture
- southern Africa
- Library Collection RecordSummary The growth of agricultural production worldwide has led to an increasing role of agro-ecosystems within the global carbon cycle. Arable land in the world covers about one-tenth of the 134…Publication Date 2001
- plant production
- carbon dioxide
- animal nutrition
- animal production
- southern Africa
- Library Collection RecordIn the Sahel and the Kalahari, the growth in groundwater extraction via simple wells and boreholes is contributing to an increased use of dryland natural resources, to competition for resources, and…Publication Date 2003
- rangeland condition
- rainfall
- groundwater
- animal production
- vegetation dynamics
- biodiversity
- bush thickening
- indigenous encroaching species
- southern Africa
- Library Collection RecordLivestock have played a pivotal and positive role in human development. Yet this has come at a heavy cost to the biological diversity of the world's rangelands and forests. Livestock grazing is…Publication Date 2001
- rangelands
- ecology
- livestock
- southern Africa
- Library Collection RecordSummary The savanna biome is diverse, including formations ranging from almost treeless grasslands to more or less closed-canopy woodlands with considerable variation in plant composition, biomass,…Publication Date 2001
- savanna
- animal production
- plant production
- plant community ecology
- land use
- degradation
- agriculture
- ecology
- southern Africa
- Library Collection Record
172 Grasslands
Vegetation dominated by grasses, which is among the largest ecosystems in the world, has great environmental significance as well as providing feed for livestock and wildlife. Grassland types vary…Publication Date 2001- savannah
- steppe
- grasses
- herbivory
- grazing
- fire
- savanna
- grasslands
- disturbance
- livestock
- southern Africa
- Library Collection RecordThe world population has increased from 2–10 million at the dawn of settled agriculture about 10–12 millennium ago to 6.5 billion in 2006, and may stabilize at 10–12 billion by 2100. Most of…Publication Date 2007
- socio-economic aspects
- agriculture
- pastoralism
- soils
- management
- plant production
- animal production
- southern Africa
- Library Collection RecordPublished studies relating erosion and productivity have been generally based on information derived from expert opinion on the extent and severity of soil erosion and on limited data on its impact…Publication Date 2003
- soil erosion
- plant production
- management
- southern Africa
- Library Collection RecordThe chapter describes different patches that are included in a single landscape unit. Patches differ in size, species composition, and the way they function in a landscape. Patches may be composed of…Publication Date 2002
- vegetation dynamics
- ecology
- southern Africa
- Library Collection RecordThis chapter contains sections titled: * Introduction * Why has woody plant abundance increased on rangelands? * Traditional perspectives on woody plant encroachment * Emerging perspectives on woody…Publication Date 2009
- southern Africa
- Library Collection RecordSummary In order to obtain a better insight into past vegetational and climatic changes along the Pole-Equator-Pole: Americas (PEP 1) transect, 32 late Quaternary pollen records from savanna and…Publication Date 2001
- southern Africa
- Library Collection RecordGrassland in most cases is a man-made ecosystem. It covers large areas as a result of logging and slash-and-burn agriculture. It is maintained by regularly burning and cattle grazing. In contrast to…Publication Date 2006
- southern Africa
- Library Collection RecordAfrican lakes show considerable dynamism over a range of timescales, underlining the large changes in precipitation-evaporation balance that have characterized Quaternary climates in Africa. On a…Publication Date 2007
- southern Africa
- Library Collection RecordSub-Saharan Africa (SSA) faces multiple problems. The main one is improving the lives of the 30% of its population that suffers from extreme poverty and food insecurity. As more than 70% of the…Publication Date 2007
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 2011
- southern Africa
- Library Collection RecordOver the past decade, economic and agricultural growth in sub-Saharan Africa (SSA) has resumed. The secular downward trend in agricultural prices ended in the early 1990s; growing incomes in Asia and…Publication Date 2010
- southern Africa
- Library Collection RecordNo abstract availablePublication Date 2006
- ecosystem ecology
- management
- Africa
- Library Collection Record  The K-State Research and Extension Forage Task Force surveyed Kansas rangelands during the course of seasonal changes to enable producers and managers to better estimate the feed value of their…Publication Date 2002
- Kansas
- Library Collection RecordIn two Mulga pasture types and in a Sandy Open Woodland, the effect of exclosure from grazing cattle during seven years,and distance from water were studied. Standing biomass levels fluctuated more…Publication Date 2014
- Library Collection RecordThe effect of sheep and rabbits grazing on the vegetation and its regeneration measured in the 275 mm annual rainfall zone on three overgrazed sites between 1968 and 1980. It was found that where the…Publication Date 2014
- Library Collection RecordThe population dynamics of Astrebla spp. at two levels of grazing and exclosure are expressed in the form of age structure and used to project the likely changes due to drought. It is concluded that…Publication Date 2014
- Library Collection RecordIn a mulga (Acacia aneura) woodland pasture, the survival of mature grasses and their seedlings was more strongly influenced by seasonal conditions than by grazing, although heavily grazed pastures…Publication Date 2014
- Library Collection RecordAnimal activity and the distribution of' faeces were studied on a small paddock grazed intensively by Merino sheep. Irrespective of whether sites were used for camping or grazing, the pattern of…Publication Date 2014
- Library Collection RecordA method for obtaining quantitative diet information for sheep is described. It requires no elaborate equipment or procedures. Dietary intake is measured as the daily difference in available forage…Publication Date 2014
- Library Collection RecordAfter 50 years of experience in the Arid Zone, I am not optimistic that it is possible for economic continuous grazing of the pastoral lands without very drastic management changes. In an article of…Publication Date 2014
- Library Collection RecordA comparatively new demographic phenomenon occurring in the central Australian arid rangelands is the establishment of micro - communities, of homelands or outstation Aboriginal people, scattered…Publication Date 2014
- Library Collection RecordComputer simulation modelling provides a valuable means of understanding the functioning of Australia's rangelands and predicting the outcomes of various management strategies. Models are…Publication Date 2004
- simulation models
- global warming
- pastoralism
- Library Collection RecordA joint rangeland survey team from the Department of Agriculture and the Department of LandInformation has the responsibility for determining carrying capacities for the pastoral areas of…Publication Date 2004
- surveys
- sustainable land management
- Buffel grass (Cenchrus)
- Library Collection RecordTo effectively manage weeds, information on the individual species' distribution and habitat is required. Both habitat and distribution can be described at a range of scales. In this study the…Publication Date 2004
- habitat
- soil surveys
- invasive species
- Library Collection RecordIn order to minimise resource damage and enhance long -term productivity, pastoralists need improved seasonal forecasting knowledge and tools to better manage for the high climate variability that…Publication Date 2004
- productivity
- pastoralism
- El Nino
- La Niña
- Library Collection RecordOver 200,000 sq km or 60% of Rajasthan is arid, and forms 62% of the Indian arid zone. Annual rainfall spans 100-350 mm, is largely monsoonal and highly variable, and grazing is the major land use.…Publication Date 2004
- Monsoon climate
- crop production
- Irrigation canals
- Library Collection RecordThe European rabbit (Oryctolagus cuniculus) is one of the most damaging environmental pests inAustralia. Over much of their range, rabbits live in large underground warrens. Large amounts of soil are…Publication Date 2004
- Pests
- productivity
- Yathong Nature Reserve
- Western NSW
- Library Collection RecordCalibrating a continental scale spatial model running at a daily time step is a challenging task. There are about 270,000 pixels for which a calculation is made. Parameters have to be estimated for…Publication Date 2004
- satellite observation
- statistics
- Library Collection RecordRabbits have been a major problem creating over grazing and increasing the impacts of drought in the rangelands. Rabbits have the ability to eat 10-150 g of food per day, which when a doe can produce…Publication Date 2004
- overgrazing
- Ripping (tillage)
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