Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"The Namib Desert"”.
-
Social and spatial mobility along the Kuiseb River in the Namib Desert, Namibia
This study seeks to explain the unusually high rate of circulation of individuals between local domestic units of the rural settlements along the Kuiseb River as well as between these and domestic units in the closest urban centre. It is argued that these movements form part of a general state of …
-
Sedimentation on the continental margin off the Orange River and the Namib Desert
This study is the first detailed reconnaissance survey of the bathymetry, bedrock geology and the superficial sediments of the continental margin off the Orange River and the Namib Desert. The study area is bounded by latitudes 25° and 3o0 s. The Orange shelf is up to 100 km wide and 200 m deep, …
-
Behavioural and physiological ecology of the Namib Desert dune ant, Camponotus detritus emery
The ecology of Camponotus detritus was examined over two years at six sites across the Namib Desert. This common species was found to fill an important role in the dune ecosystem as the major honeydew consumer, apparently limited chiefly by intraspecific competition for food. Each colony, …
-
The water line : research into the peculiar place of the Namib Desert coast
… dissertation began as a study of a portion of the coastal Namib Desert that I am particularly inspired by and with which I formed a personal connection over the course of many childhood coastal excursions. From these studies a site within the salt pan mine concession outside of Swakopmund was …
-
Ecological niche partitioning and resource utilization in two sympatric lacertid lizard species (Meroles anchietae and M. cuneirostris) from the Namib Desert
The ability of two lizard species to co-exist within one habitat requires divergence into one or more niche dimensions (i.e., spatial, temporal and trophic) to reduce competition. Coupled with a scarcity of resources, the Namib Desert is an arid ecosystem with a high lizard diversity and presents …
-
Seasonal dynamics of edaphic bacterial communities in the hyper-arid namib desert
The Namib Desert is a hyper-arid, coastal desert with limited bioavailable water and nutrients; characteristics which collectively impose constraints on edaphic microbial communities. Several studies in the Namib Desert have investigated changes in soil microbial communities across space. However, …
-
Seasonal dynamics of edaphic bacterial communities in the hyper-arid Namib desert
The aim of this study is to investigate the edaphic bacterial community dynamics over short (57 days) and long-term (1 year) sampling intervals using an extensive sampling strategy in combination with community fingerprinting by T-RFLP analyses and micro environmental characterization. The …
-
The contribution of fog to the moisture and nutritional supply of Arthraerua leubnitziae in the central Namib Desert, Namibia
Fog is a key source of moisture to the diverse coastal Namib Desert biota, delivering five times more moisture than rain. Apart from the importance of fog as a source of water for plants, it is also associated with particulates that may contain essential nutrients for plants. Furthermore, dry …
-
Benthic foraminifera from the Orange-Luderitz shelf, southern African continental margin
An investigation of the benthic foraminifera in the surficial sediments of the continental shelf and upper slope off the Orange River mouth and the Namib Desert was undertaken as an adjunct to sedimentological and geophysical investigations being conducted by members of the Joint Geological …
-
The Vegetation and Restoration Potential of the Arid Coastal Belt Between Port Nolloth and Alexander Bay, Namaqualand, South Africa.
This thesis introduces the environment and the vegetation of the Namaqualand coastal belt between Port Nolloth and Alexander Bay. Aspects of the abiotic environment are discussed and related to patterns and processes observed in the vegetation of the study area. The restoration of the natural …
-
Design and microfabrication of multifunctional bio-inspired surfaces
In this thesis, we used CMOS-like technologies to produce improved, hierarchical multifunctional bioinspired surfaces. Different natural surfaces have been surveyed including well-known lotus leaf, sharkskin, back of the Namib Desert beetle, butterfly wings, and legs of water-walking insects. The …
-
Morphogenetic landscapes :
This thesis is concerned with the creation of systems that respond to selective environmental conditions in extreme environments resulting in varying levels of habitation. The development of these morphogenetic landscapes was arrived at through two parts. The first was a rigorous analysis of the …
-
The vegetation and restoration potential of the arid coastal belt between Port Nolloth and Alexander Bay, Namaqualand, South Africa
This thesis introduces the environment and the vegetation of the Namaqualand coastal belt between Port Nolloth and Alexander Bay. Aspects of the abiotic environment are discussed and related to patterns and processes observed in the vegetation of the study area. The restoration of the natural …
-
An ephemeral perspective of fluvial ecosystems: Viewing ephemeral rivers in the context of current lotic ecology
… of ephemeral rivers were investigated in the Namib Desert to assess how hydrologic regimes shape the physical habitat template of these river ecosystems. An analysis of long-term hydrologic records revealed that the variation in mean annual runoff and peak discharge were nearly four times …
-
Stratigraphy, igneous petrology and evolution of the Sinclair Group in southern South West Africa
The investigation of an area fringing the Namib Desert in southern South West Africa has led to the clarification of relationships between several geological units of the Late Precambrian Sinclair Group, and to the formulation of a petrogenetic scheme and geotectonic model of evolution. In the area …
-
The use of life cycle cost analysis in determining the cost effectiveness of railway lines' design and maintenance options for railway lines through windblown sandy desert in Namibia: Case study of the Aus - Luderitz railway line
Railway transport in Namibia is one of the most important mode of transport with great importance to the economy of the country. Currently, road networks are the most important because of the low population density of the nation. However, railway lines have been reported to be the most economical, …
-
The roles of education for sustainable development and Namibian youth in the advancement of sustainable household cooking energy
… and efficient cooking is a popular solution in the international development community for its presence in multiple Sustainable Development Goals (SDGs). However, in the last forty years of cookstove research and dissemination programs, adoption and sustained use have failed to meet expectations …
-
The source of uranium and vanadium at the Langer Heinrich and Klein Trekkopje uranium deposits-genesis and controlling factors for uranium mineralization, Western Namibia.
The Langer Heinrich and Klein Trekkopje U deposits are located within the Namib Desert in Central Namibia. Both deposits are hosted by calcretes developed within palaeo-channel systems of Tertiary age. The sources of both U and V in the two deposits and the reasons why the two deposits differ in …
-
The sedimentology, palaeontology and stratigraphy of coastal-plain deposits at Hondeklip Bay, Namaqualand, South Africa
The exposures in diamond mines on the Namaqualand west coast of South Africa provide a rare opportunity to examine a record that is normally inaccessible beneath a thick cover of aeolian sands. This study presents the main results of fieldwork in mine excavations on the farms Hondeklip and …
-
Movement patterns and habitat use by Namib golden moles (Eremitalpa granti namibensis Bauer and Neithammer, 1959)
Linnaeus first documented the existence of Golden Moles (Chrysochloridae and Afrosoricida) in 1758 but little is currently known about the biology of most of the species. Namib Golden Moles (Eremitalpa granti namibensis) are small, blind insectivorous mammals that inhabit the Namib Desert dunes. …
Page 1 of 2