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Browsing by Author "Bond, William J"

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The adaptive geometrey {i.e. geometry} of savanna trees : a comparative study of the architecture and life history of Acacia karroo Hayne. in savanna, forest, and arid karoo shrubland environments

Author: Archibald, Sally Date: 1998 Various 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
Aspects of the biology of climbers in southern Africa

Author: Balfour, David Andrew Date: 1991 This 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
Burning for birds : the response of bird communities to recent fire history in the Serengeti ecosystem

Author: Kinsey, Elliot Date: 2014 Fire 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
The burning questions about Hluhluwe : causes and consequences of a severe wildfire

Author: Browne, Catherine Date: 2009 The 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
A comparison of the seed dispersal service offered by chimpanzees (Pan troglodytes) and gorillas (Gorilla gorilla)

Author: Bunney, Katherine Date: 2005 The 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
The competitive dynamics of two Protea shrubs growing in a mixed fynbos stand

Author: Anderson, Pippin Date: 1996 Patterns 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
The conservation genetics of the Clanwilliam cedar (Widdringtonia cedarbergensis)

Author: Thomas, Janet Clare Date: 1995 Widdringtonia 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
Decomposition of grasses in a South African savanna

Author: Masubelele, Mmoto Leonard Date: 2007 Tropical 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
The demographic impacts of browsing on woody plants in savannas : from individual branches to whole populations

Author: Moncrieff, Glenn R Date: 2010 Browsing 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
Does tree size matter? : giraffe influence on African savanna ecosystem properties

Author: Soutschka, Nadine Date: 2010 Trees 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
The ecological effects of grazing by the White Rhino (Ceratotherium simum simum) at a landscape scale

Author: Waldram, Matthew Date: 2005 In 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
Ecological significance of variation in Themeda triandra Forsk : a case of intra-specific divergence in life history strategies?

Author: Janse van Rensburg, Susan Date: 2006 Rangelands 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
The effect of grassland shifts on the avifauna of a South African savanna

Author: Krook, Kristine Date: 2005 Two 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
The effect of light-limitation on spinescent structural defence and its implications on resistance to herbivory in the shade

Author: Adams, Ismat Date: 2013 Plants 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
The effects of different burning regimes on grassland phytodiversity

Author: Uys, Roger Gregory Date: 2000 The 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
Effects of frequent burning on grass-grazer interactions in a mesic savanna

Author: Archibald, Sally Date: 2003 Fires 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
The effects of habitat change on bird diversity and community structure in a mesic Savanna landscape

Author: Skowno, Andrew L Date: 2000 Many 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
The effects of population size on agathosma collina (rutaceae) and its conservation implications

Author: Jeffery, Douglas John Date: 1997 Agathosma 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
Effects of repeated fire on the savanna / forest boundary

Author: Wills, Cameron Date: 2012 Savanna 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
Exploring the potential impacts of global change on the woody component of of South African savannas

Author: Stevens, Nicola Date: 2014 Land 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

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