Browsing Natural and Agricultural Sciences by Type "Article"

Browsing Natural and Agricultural Sciences by Type "Article"

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  • Aardwolf population diversity and phylogenetic positioning inferred using complete mitochondrial genomes 
    Westbury, Michael V.; De Cahsan, Binia; Dalerum, Fredrik; Noren, Karin; Hofreiter, Michael (Southern African Wildlife Management Association, 2019)
    The aardwolf (Proteles cristata) is a unique, insectivorous species of the family Hyaenidae. It occupies a disjunct range in eastern and southern Africa and is possibly a remaining member of a historical dog-like hyaena ...
  • Ab initio studies of bimetallic-doped {0001} hematite surface for enhanced photoelectrochemical water splitting 
    Simfukwe, Joseph; Mapasha, Refilwe Edwin; Braun, Artur; Diale, M. (Mmantsae Moche) (MDPI, 2021-08)
    First-principles calculations based on density functional theory (DFT) were carried out to study the energetic stability and electronic properties of a bimetallic-doped α-Fe2O3 photoanode surface with (Zn, Ti) and (Zn, ...
  • Ab initio studies of isolated boron substitutional defects in graphane 
    Mapasha, Refilwe Edwin; Chetty, Nithaya (IOP Publishing Limited, 2017)
    We have systematically studied energetics, structural and electronic properties of di erent con gurations of the B atoms substituting C-H pairs located on a single hexagonal ring in a graphane system using the rst-principles ...
  • An ab-initio study of P-type ZrCoY (Y[dbnd]Sb and Bi) half – Heusler semiconductors 
    Allan, Lynet; Mulwa, Winfred M.; Mwabora, Julius M.; Musembi, Robinson J.; Mapasha, Refilwe Edwin (Elsevier, 2023-08)
    Please read abstract in article.
  • Ab-initio study of the optical properties of beryllium-sulphur co-doped graphene 
    Olaniyan, Okikiola; Igumbor, Emmanuel; Khaleed, Abubakar A.; Mirghni, Abdulmajid Abdallah; Manyala, Ncholu I. (American Institute of Physics, 2019)
    Graphene is a carbon material with excellent properties, which makes it applicable in a myriad of applications. However, the range of the applications of graphene can be extended to the developing field of nanoelectronics ...
  • The ABCs of an NRF rating 
    Wingfield, Brenda D. (AOSIS Open Journals, 2014)
    I have now been awarded virtually every NRF (National Research Foundation) rating reasonably available. Many years ago at the start of my academic life I received a 'Y' label; I have recently been awarded an 'A' rating. ...
  • Abiotically-induced plant morphological changes and host-range expansion in quarantine evaluations of candidate weed biocontrol agents : the case study Conchyloctenia hybrida (Coleoptera: Chrysomelidae) 
    Ghebremariam, Tsedal Tseggai; Kruger, Kerstin; Reinhardt, Carl Frederick (Charlie); Robbertse, P.J. (Petrus Johannes), 1932- (Entomological Society of America, 2014)
    Plant morphological changes mediated by growth conditions are linked to changes in host preference of herbivores. Understanding how these morphological changes influence herbivore feeding is critical in the interpretation ...
  • Aboveground biomass density models for NASA’s global ecosystem dynamics investigation (GEDI) lidar mission 
    Duncanson, Laura; Kellner, James R.; Armston, John; Dubayah, Ralph; Minor, David M.; Hancock, Steven; Healey, Sean P.; Patterson, Paul L.; Saarela, Svetlana; Marselis, Suzanne; Silva, Carlos E.; Bruening, Jamis; Goetz, Scott J.; Tang, Hao; Hofton, Michelle; Blair, Bryan; Luthcke, Scott; Fatoyinbo, Lola; Abernethy, Katharine; Alonso, Alfonso; Andersen, Hans-Erik; Aplin, Paul; Baker, Timothy R.; Barbier, Nicolas; Bastin, Jean Francois; Biber, Peter; Boeckx, Pascal; Bogaert, Jan; Boschetti, Luigi; Boucher, Peter Brehm; Boyd, Doreen S.; Burslem, David F.R.P.; Calvo-Rodriguez, Sofia; Chave, Jerome; Chazdon, Robin L.; Clark, David B.; Clark, Deborah A.; Cohen, Warren B.; Coomes, David A.; Corona, Piermaria; Cushman, K.C.; Cutler, Mark E.J.; Dalling, James W.; Dalponte, Michele; Dash, Jonathan; De-Miguel, Sergio; Deng, Songqiu; Ellis, Peter Woods; Erasmus, Barend Frederik Nel; Fekety, Patrick A.; Fernandez-Landa, Alfredo; Ferraz, Antonio; Fischer, Rico; Fisher, Adrian G.; Garcia-Abril, Antonio; Gobakken, Terje; Hacker, Jorg M.; Heurich, Marco; Hill, Ross A.; Hopkinson, Chris; Huang, Huabing; Hubbell, Stephen P.; Hudak, Andrew T.; Huth, Andreas; Imbach, Benedikt; Jeffery, Kathryn J.; Katoh, Masato; Kearsley, Elizabeth; Kenfack, David; Kljun, Natascha; Knapp, Nikolai; Kral, Kamil; Krucek, Martin; Labriere, Nicolas; Lewis, Simon L.; Longo, Marcos; Lucas, Richard M.; Main, Russell; Manzanera, Jose A.; Martínez, Rodolfo Vasquez; Mathieu, Renaud; Memiaghe, Herve; Meyer, Victoria; Mendoza, Abel Monteagudo; Monerris, Alessandra; Montesano, Paul; Morsdorf, Felix; Næsset, Erik; Naidoo, Laven; Nilus, Reuben; O’Brien, Michael; Orwig, David A.; Papathanassiou, Konstantinos; Parker, Geoffrey; Philipson, Christopher; Phillips, Oliver L.; Pisek, Jan; Poulsen, John R.; Pretzsch, Hans; Rudiger, Christoph; Saatchi, Sassan; Sanchez-Azofeifa, Arturo; Sanchez-Lopez, Nuria; Scholes, Robert; Silva, Carlos A.; Simard, Marc; Skidmore, Andrew; Sterenczak, Krzysztof; Tanase, Mihai; Torresan, Chiara; Valbuena, Ruben; Verbeeck, Hans; Vrska, Tomas; Wessels, Konrad; White, Joanne C.; White, Lee J.T.; Zahabu, Eliakimu; Zgraggen, Carlo (Elsevier, 2022-03)
    NASA’s Global Ecosystem Dynamics Investigation (GEDI) is collecting spaceborne full waveform lidar data with a primary science goal of producing accurate estimates of forest aboveground biomass density (AGBD). This ...
  • Abrus kaokoensis (Leguminosae-Papilionoideae-Abreae), a new species from Namibia 
    Swanepoel, Wessel; Kolberg, H. (Elsevier (open access), 2011-08)
    Abrus kaokoensis Swanepoel & H.Kolberg, a woody subshrub, is described as a new species. It is only known from the vicinity of the Kunene River and the Baynes Mountains in the Kaokoveld Centre of Endemism, Namibia. Its ...
  • Abundance and trait-matching both shape interaction frequencies between plants and birds in seed-dispersal networks 
    Pena, Rocio; Schleuning, Matthias; Dalerum, Fredrik; Donoso, Isabel; Rodriguez-Perez, Javier; Garcia, Daniel (Elsevier, 2023-02)
    Abundance and trait-driven processes have both been identified as potential mechanisms in determining the occurrence of species interactions. However, little is known about how these two mechanisms interact to determine ...
  • Abundance estimates of killer whales at subantarctic Marion Island 
    Reisinger, Ryan Rudolf; De Bruyn, P.J. Nico; Bester, Marthan Nieuwoudt (Inter-Research, 2011-05-05)
    Killer whales Orcinus orca are apex predators known to have important effects on marine ecosystems. A fundamental step towards understanding their role in ecosystems, and vital for their informed management and conservation, ...
  • Abundance of Indo-Pacific bottlenose dolphins (Tursiops aduncus) along the south coast of South Africa 
    Vargas-Fonseca, O. Alejandra; Kirkman, Stephen P.; Oosthuizen, Wessel Christiaan; Bouveroux, Thibaut; Cockcroft, Vic; Conry, Danielle S.; Pistorius, Pierre Anton (Public Library of Science, 2020-10)
    Coastally distributed dolphin species are vulnerable to a variety of anthropogenic pressures, yet a lack of abundance data often prevents data-driven conservation management strategies from being implemented. We investigated ...
  • Abundance, predation, and habitat associations of lemming winter nests in northern Sweden 
    Vigues, Jan; Noren, Karin; Wilkinson, Caitlin; Stoessel, Marianne; Angerbjorn, Anders; Dalerum, Fredrik (Wiley, 2022-06)
    Spatially synchronous fluctuations of animal populations have profound ecological consequences, especially in northern latitudes. Spatially coupled fluctuations are often seen in small rodent populations, albeit with ...
  • Abundance, survival and population growth of killer whales Orcinus orca at subantarctic Marion Island 
    Jordaan, Rowan Keith; Oosthuizen, Wessel Christiaan; Reisinger, Ryan Rudolf; De Bruyn, P.J. Nico (Nordic Council for Wildlife Research, 2020)
    Killer whales, Orcinus orca, are a cosmopolitan species with large ecological and demographic variation across populations. Population-specific demographic studies are, therefore, crucial in accurately assessing the status ...
  • The Acacia controversy resulting from minority rule at the Vienna Nomenclature Section : much more than arcane arguments and complex technicalities 
    Moore, Gerry; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Demissew, Sebsebe; Lewis, G.P. (Gwilym Peter); Schrire, Brian D.; Rico, Lourdes; Van Wyk, Abraham Erasmus (Braam); Luckow, Melissa; Kiesling, Roberto; Mario, Sousa S. (International Association for Plant Taxonomy, 2011-06)
    The arguments towards resolving the Acacia nomenclatural controversy put forth by Thiele & al. (2011) are reviewed and rebutted. We argue that a truly pragmatic and, moreover, defensible and equitable alternative to ...
  • Acacia, the 2011 Nomenclature Section in Melbourne, and beyond 
    Moore, Gerry; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Demissew, Sebsebe; Lewis, G.P. (Gwilym Peter); Schrire, Brian D.; Rico, Lourdes; Van Wyk, Abraham Erasmus (Braam) (International Association for Plant Taxonomy, 2010-08)
    This paper briefly reports on the developments surrounding the Acacia name conservation controversy since the Nomenclature Section meeting at the Seventeenth International Botanical Congress at Vienna in 2005. Actions taken ...
  • Acaricidal activity of the aqueous and hydroethanolic extracts of 15 South African plants against Rhipicephalus turanicus and their toxicity on human liver and kidney cells 
    Fouche, Gerda; Adenubi, Olubukola Tolulope; Leboho, Tlabo; McGaw, Lyndy Joy; Naidoo, Vinny; Wellington, Kevin W.; Eloff, Jacobus Nicolaas (AOSIS OpenJournals, 2019-07-22)
    Hot water and hydroethanolic (70:30) extracts were prepared from 15 plant species, which were investigated to discover eco-friendly and less expensive tick control methods as an alternative to synthetic acaricides. A ...
  • Accelerated failure-time model with weighted least-squares estimation : application on survival of HIV positives 
    Mustefa, Abdela; Chen, Ding-Geng (Din) (BMC, 2021-05)
    BACKGROUND: Survival analysis is the most appropriate method of analysis for time-to-event data. The classical accelerated failure-time model is a more powerful and interpretable model than the Cox proportional hazards ...
  • Acceptability of chevon from kids, yearling goats and mature does of indigenous South African goats : a case study 
    Simela, Langelihle; Webb, E.C. (Edward Cottington); Bosman, M.J.C. (South African Society for Animal Science, 2008)
    Consumer sensory evaluations of oven-roasted goat and sheep m. longissimus dorsi samples were conducted in two series to determine the acceptability of chevon from indigenous South African goats to consumers. Chevon samples ...
  • The acceptability of yellow mealworm as chicken feed : a case study of small-scale farmers in South Africa 
    Selaledi, Letlhogonolo Andrew; Maake, Matome; Mabelebele, Monnye (BMC, 2021-05)
    BACKGROUND: Small-scale poultry farming plays a major role as a source of income for farmers through the sale of birds and eggs. Furthermore, in households’ poultry products are a valuable source of protein in the ...