Articles by Keyword: Spatio Temporal Trends

Search results for Spatio Temporal Trends

We found 45 results for you
  1. Extreme significant wave height climate in the Gulf of Guinea

    Extreme significant wave height climate in the Gulf of Guinea

    Item type: Journal Article • Journal: African Journal of Marine Science
    This article investigates spatio-temporal trends for different return periods of extreme significant wave height (SWH) in the Gulf of Guinea (GG), northeastern tropical Atlantic Ocean, based on a 37-year (1980–2016) wave hindcast. High-resolution reanalysis windfield datasets were used to force...
  2. Changing perceptions of fire management in savanna parks

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Parks are managed to preserve their pristine state. Fire has had a varied role in this, depending on shifting paradigms of savanna functioning. Formerly, an equilibrium theory of functioning prevailed where fire was at first an unavoidable evil, and then...
  3. Distribution, abundance and diversity of macrozoobenthos in Aiba Reservoir, Iwo, Nigeria

    Distribution, abundance and diversity of macrozoobenthos in Aiba Reservoir, Iwo, Nigeria

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Spatial and seasonal variation in macrozoobenthic composition, abundance and diversity in Aiba Reservoir were investigated bimonthy between June 2004 and April 2005 using a van Veen grab. A depauperate fauna of nine taxa was recorded. Generally, larger numbers of taxa...
  4. Quantification and representation of potential spatial interactions in the southern Benguela ecosystem

    Quantification and representation of potential spatial interactions in the southern Benguela ecosystem

    Item type: Journal Article • Journal: African Journal of Marine Science
    This work explores the potential spatial interactions between 13 key commercial species of the southern Benguela ecosystem: sardine Sardinops sagax, anchovy Engraulis encrasicolus, round herring Etrumeus whiteheadi, horse mackerel Trachurus trachurus capensis, chub mackerel Scomber japonicus, chokka squid Loligo vulgaris...
  5. Analysis of bycatch in the South African midwater trawl fishery for horse mackerel <em>Trachurus capensis</em> based on observer data

    Analysis of bycatch in the South African midwater trawl fishery for horse mackerel <em>Trachurus capensis</em> based on observer data

    Item type: Journal Article • Journal: African Journal of Marine Science
    The South African midwater trawl fishery targets adult horse mackerel Trachurus capensis. The bulk of the catch is taken by a single freezer-trawler, the biggest fishing vessel operating in South African waters. As fishing takes place off the south coast...
  6. Access Development in South African Mountainous Plantations—Problems, Trends, Research

    Item type: Journal Article • Journal: South African Forestry Journal
    The forest road network in South Africa's plantations was rapidly developed to provide access for planting, fire protection and later logging. The result today is a fairly high road density of rather low standard roads!
  7. Temporal and spatial relations of plant element uptake and yield of a lucerne stand

    Temporal and spatial relations of plant element uptake and yield of a lucerne stand

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    In general, agricultural fields are managed as uniform units, ignoring spatial and temporal relations between plant element uptake and yield. This study was conducted from June 2001 to February 2002 on a two-year-old lucerne stand and explores the spatial relationships...
  8. A review of advances in hydropedology for application in South Africa

    A review of advances in hydropedology for application in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Hydropedology is internationally a new and fast-growing science. It is therefore pertinent to take heed of developments in this regard to guide current and future research in South Africa. This paper aims to discuss the initiation and advances in the...
  9. Recent population trends of African penguins <em>Spheniscus demersus</em> in Namibia

    Recent population trends of African penguins <em>Spheniscus demersus</em> in Namibia

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The African penguin Spheniscus demersus is endemic to southern Africa and is listed overall as "vulnerable". Over the past century, however, the Namibian population has been severely reduced and is currently listed as "critically endangered". Recent trends at Possession, Halifax,...
  10. The influence of site, season and day of the week on exploitation of rocky intertidal biota in central Transkei, South Africa

    The influence of site, season and day of the week on exploitation of rocky intertidal biota in central Transkei, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Temporal and spatial variations in the pattern and intensity of exploitative use of rocky shores in the densely populated central Transkei region of the south-east coast of South Africa are described. Surveys of intertidal exploiters and their catches were conducted...