Browsing Natural and Agricultural Sciences by Title

Browsing Natural and Agricultural Sciences by Title

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  • Linking smallholder agriculture and water to household food security and nutrition 
    Wenhold, Friedeburg Anna Maria; Faber, Mieke; Van Averbeke, W.; Oelofse, Andre; Van Jaarsveld, P.; Jansen van Rensburg, W.S.; Van Heerden, I.; Slabbert, R. (Water Research Council, 2007-06)
    Promoting household food security and reducing malnutrition rates of a growing population with the same amount of water is a challenge facing South African nutritionists and agriculturalists alike. Apart from non-food ...
  • Linking trust and collaboration in project teams to project management success 
    Bond-Barnard, Taryn Jane; Fletcher, Lizelle; Steyn, Herman (Emerald, 2018)
    PURPOSE : The purpose of this paper is to emphasise the importance of high levels of trust and collaboration for increasing the likelihood of project management (PM) success. However, the link between these three constructs ...
  • Links between observed micro-meteorological variability and land-use patterns in the highveld priority area of South Africa 
    Esau, Igor; Luhunga, Philbert Modest; Djolov, George D.; Rautenbach, Cornelis Johannes de Wet; Zilitinkevich, Sergej (Springer, 2012-03)
    Links between spatial and temporal variability of Planetary Boundary Layer (PBL) meteorological quantities and existing land use patterns are still poorly understood due to the non-linearity of air-land interaction ...
  • Links between observed micro-meteorological variability and land-use patterns in the highveld priority area of South Africa 
    Esau, Igor; Luhunga, Philbert Modest; Djolov, George D.; Rautenbach, Cornelis Johannes de Wet; Zilitinkevich, Sergej (Springer, 2012)
    Links between spatial and temporal variability of Planetary Boundary Layer meteorological quantities and existing land-use patterns are still poorly understood due to the non-linearity of air–land interaction processes. ...
  • Lion hunting behaviour and vegetation structure in an African savanna 
    Loarie, Scott R.; Tambling, Craig J.; Asner, Gregory P. (Elsevier, 2013-05)
    Emerging evidence suggests that male lions are not dependent on female’s hunting skills but are in fact successful hunters. But difficulty locating kills and objectively characterizing landscapes has complicated the ...
  • Lions at the gates : trans-disciplinary design of an early warning system to improve human-lion coexistence 
    Weise, Florian Johannes; Hauptmeier, Helmut; Stratford, Ken J.; Hayward, Matt W.; Aal, Konstantin; Heuer, Marcus; Tomeletso, Mathata; Wulf, Volker; Somers, Michael J.; Stein, Andrew B. (Frontiers Media, 2019-01-25)
    Across Africa, lions (Panthera leo) are heavily persecuted in anthropogenic landscapes. Trans-disciplinary research and virtual boundaries (geofences) programmed into GPS-tracking transmitters offer new opportunities to ...
  • Lions Panthera leo prefer killing certain cattle Bos taurus types 
    Weise, Florian Johannes; Tomeletso, Mathata; Stein, Andrew B.; Somers, Michael J.; Hayward, Matt W. (MDPI, 2020-04)
    Lion predation on cattle causes severe human–wildlife conflict that results in retaliatory persecution throughout the lion’s geographic range. Cattle closely resemble the body size, shape, and herding patterns of preferred ...
  • Lipid ligand - protein receptor interactions characterised by a resonant mirror biosensor 
    Vrey, Pieter Jakobus (University of Pretoria, 2007-05-02)
    Please read the abstract in the section 05summary, of this document
  • Lipid stabilisation and partial pre-cooking of pearl millet by thermal treatments 
    Nantanga, Komeine Kotokeni Mekondjo (University of Pretoria, 2007-07-26)
    Pearl millet is a cereal crop cultivated by subsistence farmers in semi-arid parts of Africa and Asia. In Namibia, pearl millet porridge is a staple food for over half of the population. Healthful Harvest, a cooperative ...
  • Lipidome determinants of maximal lifespan in mammals 
    Bozek, Katarzyna; Khrameeva, Ekaterina E.; Reznick, Jane; Omerbasic, Damir; Bennett, Nigel Charles; Lewin, Gary R.; Azpurua, Jorge; Gorbunova, Vera; Seluanov, Andrei; Regnard, Pierrick; Wanert, Fanelie; Marchal, Julia; Pifferi, Fabien; Aujard, Fabienne; Liu, Zhen; Shi, Peng; Paabo, Svante; Schroeder, Florian; Willmitzer, Lothar; Giavalisco, Patrick; Khaitovich, Philipp (Nature Publishing Group, 2017-01-31)
    Maximal lifespan of mammalian species, even if closely related, may differ more than 10-fold, however the nature of the mechanisms that determine this variability is unresolved. Here, we assess the relationship between ...
  • A list of spider species found in the Addo Elephant National Park, Eastern Cape province, South Africa 
    Dippenaar-Schoeman, Anna S. (Anna Sophia), 1948-; Wiese, Linda; Foord, Stefan H.; Haddad, Charles R. (AOSIS Open Journals, 2020-04-02)
    The knowledge of spiders in the Eastern Cape province lags behind that of most other South African provinces. The Eastern Cape province is renowned for its conservation areas, as the largest part of the Albany Centre of ...
  • Listening to lions : animal-borne acoustic sensors improve bio-logger calibration and behaviour classification performance 
    Wijers, Matthew; Trethowan, Paul; Markham, Andrew; Du Preez, Byron; Chamaillé-Jammes, Simon; Loveridge, Andrew; Macdonald, David (Frontiers Media, 2018-10-29)
    Efforts to better understand patterns of animal behaviour have often been restricted by several environmental, human and experimental limitations associated with the collection of animal behavioural data. The introduction ...
  • Listeria monocytogenes pathogenesis : the role of stress adaptation 
    Sibanda, Thulani; Buys, E.M. (Elna Maria) (MDPI, 2022-07-27)
    Adaptive stress tolerance responses are the driving force behind the survival ability of Listeria monocytogenes in different environmental niches, within foods, and ultimately, the ability to cause human infections. ...
  • Lithium and electrical properties of ZnO 
    Vines, L.; Monakhov, E.V.; Schifano, R.; Mtangi, Wilbert; Auret, Francois Danie; Svensson, B.G. (American Institute of Physics, 2010-03)
    Hydrothermally grown n-type ZnO samples have been investigated by deep level transient spectroscopy (DLTS), thermal admittance spectroscopy (TAS), temperature dependent Hall effect (TDH) temperature, and secondary ion ...
  • Lithostratigraphy of the Elliot Formation (Karoo Supergroup), South Africa 
    Bordy, E.M.; Eriksson, Patrick George (Geological Society of South Africa, 2015)
    The Late Triassic to Early Jurassic Elliot Formation is part of the Stormberg Group (Karoo Supergroup) of South Africa. The unit is significant palaeontlologically, because it preserves not only a range of vertebrate ...
  • Lithostratigraphy of the Palaeoproterozoic Hekpoort formation (Pretoria Group, Transvaal Supergroup), South Africa 
    Lenhardt, Nils; Altermann, W.; Humbert, F.; De Kock, M. (Geological Society of South Africa, 2020-12)
    The Palaeoproterozoic Hekpoort Formation of the Pretoria Group is a lava-dominated unit that has a basin-wide extent throughout the Transvaal sub-basin of South Africa. Additional correlative units may be present in the ...
  • The Litsea genome and the evolution of the laurel family 
    Chen, Yi-Cun; Li, Zhen; Zhao, Yun-Xiao; Gao, Ming; Wang, Jie-Yu; Liu, Ke-Wei; Wang, Xue; Wu, Li-Wen; Jiao, Yu-Lian; Xu, Zi-Long; He, Wen-Guang; Zhang, Qi-Yan; Liang, Chieh-Kai; Hsiao, Yu-Yun; Zhang, Di-Yang; Lan, Si-Ren; Huang, Laiqiang; Xu, Wei; Tsai, Wen-Chieh; Liu, Zhong-Jian; Van de Peer, Yves; Wang, Yang-Dong (Nature Publishing Group, 2020-04-03)
    The laurel family within the Magnoliids has attracted attentions owing to its scents, variable inflorescences, and controversial phylogenetic position. Here, we present a chromosomelevel assembly of the Litsea cubeba ...
  • Litter characteristics of pine shavings, bio-secure pine shavings and sunflower hulls and its impact on broiler performance 
    Smalberger, Mareli; Jansen van Rensburg, Christine (Kassel University Press, 2021)
    The aim of this study was to investigate the physical characteristics of three litter materials, namely pine shavings (PS), bio-secure, fumigated pine shavings (BS) and sunflower hulls (SH) and its influence on broiler ...
  • Live animal and carcass characteristics of South African indigenous goats 
    Simela, Langelihle; Webb, E.C. (Edward Cottington); Bosman, M.J.C. (South African Society for Animal Science, 2011)
    Eighty-nine intact male, castrates and female South African indigenous goats in three age groups (0, 2 - 6 and 8 permanent incisors) and two pre-slaughter conditioning groups; namely, the non-conditioned which were slaughtered ...
  • Livelihood activities and skills in rural areas of the Zambezi Region, Namibia : implications for policy and poverty reduction 
    Kamwi, J.M.; Chirwa, Paxie W.; Graz, F.P.; Manda, S.O.M. (Samuel); Mosimane, A.W.; Katsch, C. (African Scholary Science Communications Trust, 2018)
    This paper examined livelihood activities and skill sets available within rural households in the Zambezi Region of Namibia. Specifically, the study addressed three key questions: (i) what livelihood activities do rural ...