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Browsing Research Articles (Plant Production and Soil Science) by UP Author "Barker, Nigel"
Now showing items 1-18 of 18
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Taylor, Peter John; Kearney, Teresa; Dalton, Desire Lee; Chakona, Gamuchirai; Kelly, Christopher M.R.; Barker, Nigel (Oxford University Press, 2020-07)Mitochondrial DNA sequences (1137 bp) of the cytochrome b gene and craniodental and craniometric data were used to investigate the evolutionary relationships of six putative rodent taxa of Otomys (family Muridae: subfamily ...
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Clark, V. Ralph; Vidal, Joao de Deus, Jr.; Grundy, Isla M.; Fakarayi, Togarasei; Childes, Susan L.; Barker, Nigel; Linder, H. Peter (Elsevier, 2019-10)Southern African mountains remain poorly studied as social-ecological systems (SES) and are poorly represented in the global mountain discourse. However, these mountains provide essential ecosystem services (ES) that ...
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Ueckermann, E.A.; Situngu, Sivuyisiwe; Barker, Nigel (Taylor and Francis, 2021)A new phytoseiids species, Typhlodromus (Anthoseius) uhoneae sp.n. is described from plants with domatia. In addition, 8 known phytoseiid species also associated with plants with domatia are discussed. A key to all the ...
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The Cuito catchment of the Okavango system : a vascular plant checklist for the Angolan headwaters Goyder, David J.; Barker, Nigel; Bester, Stoffel P.; Frisby, Arnold Walter; Janks, Matt; Gonçalves, Francisco M.P. (Pensoft Publishers, 2018-11-27)This paper aims to provide a baseline for conservation planning by documenting patterns of plant diversity and vegetation in the upper catchment of the Cuito River. 417 species are recorded from this region. Nine of these ...
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Peer, Nasreen; Gouws, Gavin; Maliwa, Lazola; Barker, Nigel; Juby, Paul; Perissinotto, Renzo (Pensoft Publishers, 2023-05)A new species of freshwater crab, Potamonautes amathole sp. nov., is described from the WinterbergAmathole mountain range in the Eastern Cape Province, South Africa. Morphologically, P. amathole Peer & Gouws, sp. nov. ...
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Mmonwa, Kolobe L.; Teske, Peter R.; McQuaid, Christopher D.; Barker, Nigel (Elsevier, 2017-12)Southern Africa is a biodiversity hotspot of patellid limpets, with three genera (Helcion, Cymbula and Scutellastra) identified and described in the region. Scutellastra is the most diverse and most frequently studied of ...
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Taylor, Chantal L.; Barker, Nigel; Barber-James, Helen M.; Villet, Martin H.; Pereira-da-Conceicoa, Lyndall L. (Pensoft Publishers, 2020-05-28)This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread (Afroptilum sudafricanum) and two stenotopic and thus endemic (Demoreptus natalensis and Demoreptus capensis) ...
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Matumba, Tshifhiwa G.; Oliver, Jody; Barker, Nigel; McQuaid, Christopher D.; Teske, Peter R. (F1000 Research, 2020)BACKGROUND: Mitochondrial DNA (mtDNA) has long been used to date historical demographic events. The idea that it is useful for molecular dating rests on the premise that its evolution is neutral. Even though this idea ...
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Clark, Ralph; Magee, Anthony (Botanical Society of SA, 2017-12)No abstract available.
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Parker, Daniel M.; Junkuhn, Kyle; Barker, Nigel (Wiley, 2022-09)No abstract available.
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Cullis, Christopher; Chimwamurombe, Percy; Barker, Nigel; Kunert, Karl J.; Vorster, Barend Juan (Frontiers Media, 2018-08-15)Plants have developed morphological, physiological, biochemical, cellular, and molecular mechanisms to survive in drought-stricken environments with little or no water caused by below-average precipitation. In this ...
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Price, Benjamin W.; Marshall, David C.; Barker, Nigel; Simon, Chris; Villet, Martin H. (Wiley, 2019-10)The Platypleurini is a large group of charismatic cicadas distributed from Cape Agulhas in South Africa, through tropical Africa, Madagascar, India and eastern Asia to Japan, with generic diversity concentrated in equatorial ...
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Swart, Carin; Rowswell, R.; Donaldson, John; Barker, Nigel (Elsevier, 2019-12)This study investigates the population structure and life history traits of the Critically Endangered cycad, Encephalartos latifrons. Populations of E. latifrons have been considered functionally extinct because no natural ...
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Swart, Carin; Donaldson, John; Barker, Nigel (Springer, 2018-07)This study evaluates how a modelling approach to determine areas of suitable habitat for the Critically Endangered Albany cycad Encephalartos latifrons can assist in systematic conservation planning for this and other rare ...
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Bentley, Luke K.; Robertson, Mark P.; Barker, Nigel (Springer, 2019-01)Global climate change is a major challenge for the future with serious potential impacts on biodiversity. Biodiversity in mountains is particularly vulnerable as many montane species are adapted to narrow microhabitats, ...
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Phaliso, Ntombifikile; McKenzie, Robert J.; Netnou-Nkoana, Noluthando C.; Karis, Per Ola; Barker, Nigel (Magnolia Press, 2016-02)The genus Berkheya is paraphyletic with the related genera Cullumia, Cuspidia, Didelta and Heterorhachis embedded within a broader clade termed the ‘Berkheya clade’. As a contribution towards reassessment of species ...
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Delves, Jess L.; Clark, Ralph V.; Schneiderbauer, Stefan; Barker, Nigel; Szarzynski, Jorg; Tondini, Stefano; Joao de Deus Vidal, Jr (MDPI, 2021-07-30)The Maloti-Drakensberg (MD) is the largest and highest-elevation mountain system in southern Africa. Covering 40,000 km2 and reaching 3500 m, the MD provides a range of ecosystem services (ES) to the entire southern African ...
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Situngu, Sivuyisiwe; Barker, Nigel; Vetter, Susanne (MDPI, 2020-02-18)Some plant species possess structures known as leaf domatia, which house mites. The association between domatia-bearing plants and mites has been proposed to be mutualistic, and has been found to be important in species ...
Now showing items 1-18 of 18