Browsing Research Articles (Geography and Environmental Studies) by Title
Now showing items 78-97 of 117
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Oil palm (Elaeis guineensis) mapping with details : smallholder versus industrial plantations and their extent in Riau, Sumatra
(MDPI, 2019-11)Oil palm is rapidly expanding in Southeast Asia and represents one of the major drivers of deforestation in the region. This includes both industrial-scale and smallholder plantations, the management of which entails ... -
Patterns of species richness and narrow endemism of terrestrial bird species in the Afrotropical region
(Wiley-Blackwell, 2002)Geographical patterns and peaks of species richness and narrow endemism (defined by rangerestrictedness and range-size rarity) are described for terrestrial Afrotropical birds and subsets thereof based on residency, ... -
A pragmatic assessment of the usefulness of the MODIS (Terra and Aqua) 1-km active fire (MOD14A2 and MYD14A2) products for mapping fires in the fynbos biome
(CSIRO Publishing, 2008)The moderate resolution imaging spectroradiometer (MODIS) fire-affected area data are not currently available for download by the public; therefore, 1-km pixel MODIS active fire data (MOD14A2 and MYD14A2) were assessed ... -
Predicting runoff-induced pesticide input in agricultural sub-catchment surface waters : linking catchment variables and contamination
(Elsevier, 2002-05)An urgent need exists for applicable methods to predict areas at risk of pesticide contamination within agricultural catchments. As such, an attempt was made to predict and validate contamination in nine separate ... -
Probabilistic description of vegetation ecotones using remote sensing
(Elsevier, 2018-07)Ecotone transitions between vegetation types are of interest for understanding regional diversity, ecological processes and biogeographical patterns. Ecotones are seldom represented on vector, line-based vegetation maps, ... -
Quantifying the effects of ecological constraints on trait expression using novel trait-gradient analysis parameters
(Wiley Open Access, 2017)Complex processes related to biotic and abiotic forces can impose limitations to assembly and composition of plant communities. Quantifying the effects of these constraints on plant functional traits across environmental ... -
Quantitative risk analysis using vulnerability indicators to assess food insecurity in the Niayes agricultural region of West Senegal
(AOSIS Publishing, 2017)There is an increasing need to develop indicators of vulnerability and adaptive capacity to determine the robustness of response strategies over time and better understand the underlying processes. This study aimed to ... -
Reflections on student tourism research in South Africa
(AfricaJournals, 2017)In South Africa, the tourism system has seen considerable policy attention over the past twenty years. As a consequence, there has been a large body of scholarship tracing its development. Much of this work draws heavily ... -
Regional development of Saldanha Bay region, South Africa : the role of Saldanha Steel
(De Gryuter Open, 2014-12-11)Since 1970 the Saldanha Bay region on the West Coast of the Western Cape Province has been high on South Africa’s national development agenda. The region has been struggling for years to meet the preconditions for ... -
Remote sensing training in African conservation
(Wiley, 2017-01)The potential of remote sensing (RS) to assist with conservation planning, implementation and monitoring is well described, and particularly relevant in African areas that are inaccessible due to terrain, finances or ... -
Revealing unexpected uses of space by wintering Aquila pomarina : how does satellite telemetry identify behaviour at different scales?
(Wiley Online, 2015)Little is understood about the dispersion and movements of Palaearctic migrant raptors while wintering in southern Africa. The high temporal and spatial resolution of GPS telemetry data provided the opportunity to describe ... -
A revision of the 2004 growth potential of towns in the Western Cape study
(Stellenbosch University, 2010-03)One of the objectives of the Department of Environmental Affairs and Development Planning (DEA&DP) is to undertake spatial planning that promotes and guides the sustainable future development of the Western Cape province ... -
Semi-automated segment generation for geographic novelty detection using edge and area metrics
(CONSAS Conference, 2012)An approach to generating accurate image segments for land-cover mapping applications is to model the process as an optimisation problem. Area-based empirical discrepancy metrics are used to evaluate instances of generated ... -
Short-term relationships between winter temperatures and cardiac disease mortality in Cape Town
(Health & Medical Publishing Group, 1995)The short-term relationship between winter temperatures and cardiac disease mortality in Cape Town was investigated for the period 1978-1985. The mortality data were stratified according to age (0-4 years, 5-59 years, 60 ... -
A simple normalized difference approach to burnt area mapping using multi-polarisation C-band SAR
(MDPI, 2017)In fire-prone ecosystems, periodic fires are vital for ecosystem functioning. Fire managers seek to promote the optimal fire regime by managing fire season and frequency requiring detailed information on the extent and ... -
Spatial accessibility in urban regeneration areas : a population-weighted method assessing the social amenity provision
(Cogitatio, 2021)Principles of social sustainability serve to guide urban regeneration programmes around the world. Increasingly, the upholding of these principles is subject to qualified evaluation and monitoring. One of the cornerstones ... -
Spatial and temporal variations of satellite-derived multi-year particulate data of Saudi Arabia : an exploratory analysis
(MDPI, 2014-10)The effects of concentrations of fine particulate matter on urban populations have been gaining attention because fine particulate matter exposes the urban populace to health risks such as respiratory and cardiovascular ... -
Spatial variation in school performance, a local analysis of socio-economic factors in Cape Town
(CONSAS Conference, 2014)Poor pass rates of matric learners at secondary schools in South Africa has been a concern for quite some time. Despite large government spending on education, research has shown that the South African schooling system ... -
Special trends and factors affecting tuberculosis in South Africa (2004-2014) : Evidence from the vital registration systems
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH SUMMARY: Background: Worldwide, South Africa is one of the countries which has consistently witnessed no significant reduction in the number of TB deaths. TB in South Africa remains the leading cause of death ... -
A spectral unmixing method with ensemble estimation of endmembers : application to flood mapping in the Caprivi floodplain
(MDPI, 2017)The Caprivi basin in Namibia has been affected by severe flooding in recent years resulting in deaths, displacements and destruction of infrastructure. The negative consequences of these floods have emphasized the need for ...
