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SOME ASPECTS OF THE ECOLOGY OF THE FRESHWATER CRAB (POTAMONAUTES PERLATUS MILNE EDWARDS) IN THE UPPER REACHES OF THE BUFFALO RIVER, EASTERN CAPE PROVINCE, SOUTH AFRICA.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M.P. Hill --- Department of Zoology and Entomology, South Africa J.H. O'Keeffe --- , South AfricaFreshwater crabs (Potamonautes perlatus) are the largest naturally occurring invertebrates in southern African rivers. The ecology of these animals in South African riverine ecosystems is little understood. This study investigates some aspects of the population and feeding ecology of P... -
Carbon stocks and productivity of mangrove forests in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marco A Njana --- National Carbon Monitoring Centre, Tanzania Eliakimu Zahabu --- National Carbon Monitoring Centre, Tanzania Rogers E Malimbwi --- Department of Forest Mensuration and Management, TanzaniaMangroves offer a number of ecosystem goods and services, including carbon (C) storage. As a carbon pool, mangroves could be a source of CO2 emissions as a result of human activities such as deforestation and forest degradation. Conversely, mangroves may... -
Aboveground biomass quantification and tree-level prediction models for the Brazilian subtropical Atlantic Forest
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Heitor Felippe Uller --- Departamento de Engenharia Florestal, Brazil Laio Zimermann Oliveira --- Departamento de Engenharia Florestal, Brazil Aline Renata Klitzke --- Departamento de Engenharia Florestal, Brazil Jackson Roberto Eleotério --- Departamento de Engenharia Florestal, Brazil Alfredo Celso Fantini --- Departamento de Fitotecnia, Brazil Alexander Christian Vibrans --- Departamento de Engenharia Florestal, BrazilForests are the largest biological reservoir of biomass and carbon on the planet. This fact turns them into the main tool to neutralise the CO2 emitted by human activities. Despite such importance, the uncertainties associated with biomass estimates in forests,... -
Estimating above-ground biomass of individual trees with terrestrial laser scanner and 3D quantitative structure modelling
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tasiyiwa P Muumbe --- , Zimbabwe Paradzayi Tagwireyi --- , Zimbabwe Pride Mafuratidze --- , Zimbabwe Yousif Hussin --- , The Netherlands Louise van Leeuwen --- , The NetherlandsThis study explored the feasibility of using the terrestrial laser scanner (TLS) and quantitative structure modelling (QSM) to estimate the above-ground biomass (AGB) of individual trees in the tropical rainforest using data from the Ayer Hitam Forest Reserve, Malaysia. We... -
Machine learning approach for identifying suspicious uniform resource locators (URLs) on Reddit social network
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nureni Ayofe Azeez --- , Nigeria Ahmed Oladapo Lawal --- , Nigeria Sanjay Misra --- , Norway Jonathan Oluranti --- , NigeriaThe applications and advantages of the Internet for real-time information sharing can never be over-emphasized. These great benefits are too numerous to mention but they are being seriously hampered and made vulnerable due to phishing that is ravaging cyberspace. This... -
Carbon storage in a dry Miombo woodland area in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ezekiel Edward Mwakalukwa --- Sokoine University of Agriculture, Tanzania Henrik Meilby --- Copenhagen University, Denmark Thorsten Treue --- Copenhagen University, DenmarkA persistent need exists, both politically and academically, for knowledge on carbon storage and sequestration potentials of forest ecosystems and their contributions to the global carbon balance. This study assessed carbon stocks of a 6 065 ha dry Miombo woodland...