Browsing Research Articles (Geography and Environmental Studies) by Title
Now showing items 68-87 of 117
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Making the case for biodiversity in South Africa : re-framing biodiversity communications
(AOSIS Publishing, 2016)Background: Biodiversity education and public awareness do not always contain the motivational messages that inspire action amongst decision-makers. Traditional messages from the biodiversity sector are often framed around ... -
Measuring and modelling evapotranspiration in a South African grassland : comparison of two improved Penman-Monteith formulations
(South African Water Research Commission, 2018)Accurately measuring evapotranspiration (ET) is important in the context of global atmospheric changes and for use with climate models. Direct ET measurement is costly to apply widely and local calibration and validation ... -
Modelling the winter distribution of a rare and endangered migrant, the Aquatic Warbler Acrocephalus paludicola
(Blackwell Publishing Ltd, 2007-04)The Aquatic Warbler Acrocephalus paludicola is one of the most threatened Western Palearctic passerine species, classified as globally Vulnerable. With its breeding grounds relatively secure, a clear need remains for ... -
Modelling water stress in a Shiraz Vineyard using hyperspectral imaging and machine learning
(MDPI, 2018)The detection of water stress in vineyards plays an integral role in the sustainability of high-quality grapes and prevention of devastating crop loses. Hyperspectral remote sensing technologies combined with machine ... -
Monitoring effects of land cover change on biophysical drivers in rangelands using albedo
(MDPI, 2019)This paper explores the relationship between land cover change and albedo, recognized as a regulating ecosystems service. Trends and relationships between land cover change and surface albedo were quantified to characterise ... -
Multi-temporal remote sensing land-cover change detection for biodiversity assessment in the Berg River catchment
(CONSAS, 2013)Due to the intimate relationship that exists between land cover and biodiversity it is possible to draw inferences on the current state of the biodiversity of an area, assess the likely future pressures and plan accordingly ... -
National coastal assessment & coastal climate change vulnerability assessment: Implications for the future
(2019-09)In this presentation the legacy of the coastal flood and erosion risk assessments conducted from the National Coastal Assessment project and the Coastal Climate Change Vulnerability Assessment is explained and the way ... -
Naturalization of European plants on other continents : the role of donor habitats
(National Academy of Sciences, 2019)The success of European plant species as aliens worldwide is thought to reflect their association with human-disturbed environments. However, an explicit test including all human-made, seminatural and natural habitat types ... -
The nutrient status of South African rivers : concentrations, trends and fluxes from the 1970s to 2005
(Academy of Science for South Africa, 2007)Eutrophication of river systems, resulting from nutrient enrichment, is globally considered to be one of the most serious threats to freshwater ecosystem services such as water quality and biodiversity. This study provides ... -
Oceans of discourses : utilizing Q methodology for analyzing perceptions on marine biodiversity conservation in the Kogelberg Biosphere Reserve, South Africa
(Frontiers, 2016-09-29)This paper attempts to empirically investigate perceptions regarding marine biodiversity conservation among different stakeholders of the Kogelberg Biosphere Reserve, South Africa. The study's data was collected by following ... -
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 ...
