Author:Archibald, SallyDate:1998Various morphological and life history attributes of Acacia karroo Hayne. were investigated in five populations from three environments in South Africa: forest (Cape Vidal, Natal), arid shrubland (Prince Albert, karoo) and savanna (Hluhluwe-Umfolozi ...Read more
Author:Balfour, David AndrewDate:1991This study examines factors that may limit the abundance and distribution of climbers and the influence that climbers may have on the regeneration of forests. The abundance of climbing plants (climbers) was established over a soil nutrient ...Read more
Author:Kinsey, ElliotDate:2014Fire is a ubiquitous ecosystem process with important implications for savanna ecology and conservation. In this study we aimed to explore the short-term and long-term effects of recent fire history on bird communities in the greater Serengeti ...Read more
Author:Browne, CatherineDate:2009The biophysical drivers of fire; ignition, fire weather conditions, fuel biomass, and flammability, differ in varying ecosystems. The rates of occurrence of these factors influence fire regimes. This study investigated the causes and consequences ...Read more
Author:Bunney, KatherineDate:2005The handful of studies that have investigated chimpanzee and gorilla seed-dispersal identify these primates as important dispersal agents. These studies do not, however, make any measure of the 'quality' of the dispersal service offered by ...Read more
Author:Anderson, PippinDate:1996Patterns of segregation among Protea species were investigated. Interspecific competition was studied as a cause of these patterns. Two different methods were used for measuring competition in a mixed stand of P. lepidocarpodendron and P. ...Read more
Author:Thomas, Janet ClareDate:1995Widdringtonia cedarbergensis is an endangered conifer species in the western Cape, South Africa. This species is under serious threat of extinction and is being actively managed by Cape Nature Conservation in a small section of the Cedarberg ...Read more
Author:Masubelele, Mmoto LeonardDate:2007Tropical and subtropical grasslands ecologists have ignored decomposition, because of the important role it plays in nutrient cycling, in terms of understanding how grass litter gets to the soil during the dry season. The major flaw is in the ...Read more
Author:Moncrieff, Glenn RDate:2010Browsing ungulates can potentially have drastic impacts on vegetation patterns. This is particularly true in African savannas where many large browsers persist at high densities. Most of the theory and models outlining mechanisms of impact ...Read more
Author:Soutschka, NadineDate:2010Trees alter the environment by affecting microclimate, soil properties and adding structural complexity to an otherwise single stratum system. It is known that the herbaceous understory of Savanna ecosystems is most productive at intermediate ...Read more
Author:Waldram, MatthewDate:2005In this thesis I generated hypotheses concerning the top down effect of grazing ungulates on grass communities and fire behavior from work done within grazing exclosures in Hluhluwe iMfolozi Park. White Rhino had a large influence in controlling ...Read more
Author:Janse van Rensburg, SusanDate:2006Rangelands are a important resource for commercial, subsistence and game enterprises. However, their variabiligy poses a challenge for their effective management. This thesis was motivated by the need to contribute to a functional classification ...Read more
Author:Krook, KristineDate:2005Two distinct grassland types occur within Hluhluwe-iMfolozi Park (HiP); short stoloniferous grazing lawns and tall, tussock-like 'bunch' grasslands. Grazing lawns are maintained by grazing mammals, among which White Rhinoceros Ceratotherium ...Read more
Author:Adams, IsmatDate:2013Plants can resist herbivore pressure through structural or chemical defence or both. The ultimate
goal of defence against herbivory is to reduce the amount of damage to biomass, but more
specifically to protect against damage to meristematic ...Read more
Author:Uys, Roger GregoryDate:2000The southern African grassland biome has a diverse flora including many rare and endangered species deserving a high conservation priority. With less than two percent currently conserved, proper management of this biome is crucial to maintaining ...Read more
Author:Archibald, SallyDate:2003Fires are often used as a management tool in both game reserves and rangelands to manipulate food availability for grazing animals. After fires, large areas of the landscape are quickly covered with nutritious new regrowth, which grazers move ...Read more
Author:Skowno, Andrew LDate:2000Many conservation areas are effectively islands in a sea of agricultural or urban development in which natural disturbance regimes have been altered or limited. Managers of such areas often need to artificially maintain disturbance regimes ...Read more
Author:Jeffery, Douglas JohnDate:1997Agathosma collina is a relatively typical widespread, outcrossing shrub species, endemic to the coastal vegetation between the Agulhas Plain and Heidelberg in the Southern Cape. Although not a rare species, its endemism makes it a suitable ...Read more
Author:Wills, CameronDate:2012Savanna and forest/thicket can exist as alternate stable states, among others, determined by fire ecology feedbacks. Bush encroachment has become an ever-increasing trend converting grassland and savanna biomes to forest/thicket. A severe ...Read more
Author:Stevens, NicolaDate:2014Land cover change, elevated CO2 and associated climate change are driving changes in ecosystem structure and function across the world. These changes are best described and understood in northern hemisphere temperate systems. Studies, models ...Read more