Browsing by Author "Le Roux, M.M."
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- ItemClarifying the placement of Trifolium capense in Leobordea (Fabaceae)(2024-01-01) Le Roux, M.M.; Klopper, R.R.; Boatwright, J.S.
- ItemCrassula obovata var. dregeana(SANBI, 2018-01)
- ItemCREW newsletter, November 2023, pp 75-77(2023-11) Le Roux, M.M.; Klopper, R.R.; Nkwanyana, M.; Victor, J.E.
- ItemCrotalarieae and Genisteae of the South African Great Escarpment are nodulated by novel Bradyrhizobium species with unique and diverse symbiotic loci(2016) Beukes, Chrizelle W.; Stepkowski, Tomasz; Venter, Stephanus N.; Cłapa, Tomasz; Phalane, Francina L.; Steenkamp, Emma T.
- ItemData liberated through the Plazi workflow can enhance the taxonomic backbone and e-Flora of South Africa(2024-07-21) Klopper, R.R.; Le Roux, M.M.; Engelbrecht, I.
- ItemThe e-Flora of South Africa restructuring data to comply with Darwin Core standards for inclusion into the World Flora Online.(2019-08-21)The e-Flora of South Africa project was initiated in 2013 by the South African National Biodiversity Institute (SANBI) in support of the Global Strategy for Plant Conservation (GSPC, 2011–2020). South Africa’s flora consists of ± 21 000 taxa of which more than half are endemic. South Africa will contribute a national Flora towards Target 1 of the GSPC. South Africa’s contribution is ± 6% of the world’s flora of which ± 3% are endemic and therefore unique. South Africa’s electronic Flora is comprised of previously published descriptions. South Africa’s e-Flora data forms part of the Botanical Dataset of Southern Africa (BODATSA), which is currently managed through the Botanical Research and Herbarium Management System (BRAHMS). To date, South Africa’s e-Flora data (http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions) represents 19 539 indigenous taxa, 79 139 descriptions of distribution, morphological, habitat and diagnostic data, and 27 799 bibliographic records. The e-Flora data was recently published online using the Integrated Publishing Toolkit and henceforth harvested by the World Flora Online (WFO) into the portal. A series of challenges were encountered while manipulating descriptive data from BRAHMS to be ingested by the WFO portal; from taxonomic issues to data quality issues not excluding compliance to data standards. To contribute to the WFO portal, the taxa in BODATSA has to match with the taxa in the WFO taxonomic backbone. Once there is a match, a unique WFO taxon identifier is assigned to the taxa in BODATSA. This process presented various challenges because the WFO taxonomic backbone and the taxonomic classification system used by South Africa (South African National Plant Checklist) does not fully correlate. The schema used to store taxonomic data also does not agree between BRAHMS and WFO and had to be addressed. To enable consistency for future, a detailed guideline document was created providing all the steps and actions that should be taken when publishing an e-Flora, managed in BRAHMS, to the WFO portal. The presentation will focus on matching taxonomic classifications between BRAHMS and WFO; dealing with character encoding issues and manipulating data to meet Darwin Core standards.
- ItemElectronic identification keys for species with cryptic morphological characters: a feasibility study using some Thesium species(PhytoKeys, 2021-02-16) van Wyk, Ben-ErikThe popularity of electronic identification keys for species identification has increased with the rapid technological advancements of the 21st century. Although electronic identification keys have several advantages over conventional textual identification keys and work well for charismatic species with large and clear morphological characters, they appear to be less feasible and less effective for species with cryptic morphology (i.e. small, obscure, variable characters and/or complicated structures associated with terminology that is difficult to interpret). This is largely due to the difficulty in presenting and illustrating cryptic morphological characters unambiguously. When taking into account that enigmatic species with cryptic morphology are often taxonomically problematic and therefore likely exacerbate the taxonomic impediment, it is clear that species groups with cryptic morphology (and all the disciplines dependent on their correct identification) could greatly benefit from a user-friendly identification tool, which clearly illustrates cryptic characters. To this end, the aim of this study was to investigate and develop best practices for the unambiguous presentation of cryptic morphological characters using a pilot interactive photographic identification key for the taxonomically difficult plant genus Thesium (Santalaceae), as well as to determine its feasibility. The project consisted of three stages: (1) software platform selection, (2) key construction and (3) key evaluation. The proposed identification key was produced with Xper3 software and can be accessed at http://www.xper3.fr/xper3GeneratedFiles/publish/identification/1330098581747548637/mkey.html. Methodologies relating to amongst others, character selection and delineation, visual and textual descriptions, key construction, character coding and key evaluation are discussed in detail. Seventeen best practices identified during this study are subsequently suggested for future electronic key compilation of species with cryptic morphology. This study indicates that electronic identification keys can be feasible and effective aids for the identification of species with cryptic morphological characters when the suggested best practices are followed.
- ItemIntegrating taxonomic and floristic data into a global perspective: the case of the South African flora(2024-07-21) Le Roux, M.M.; Klopper, R.R.; Victor, J.E.
- ItemLeistner’s Seed plants of southern Africa: now an interactive, electronic key(2017-06) Lineker, Colin
- ItemA new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny(2017-02-23) Azani, Nasim; Babineau, Marielle; Bailey, C. Donovan; Banks, Hannah; Barbosa, Ariane R.; Pinto, Rafael B.; Boatwright, James S.; Borges, Leonardo M.; Brown, Gillian K.; Bruneau, Anne; Candido, Elisa; Cardoso, Domingos; Chung, Kuo-Fang; Clark, Ruth P.; Conceição, Adilva S.; Crisp, Michael; Cubas, Paloma; Delgado-Salinas, Alfonso; Dexter, Kyle G.; Doyle, Jeff F.; Duminil, Jérôme; Egan, Ashley N.; De la Estrella, Manuel; Falcão, Marcus J.; Filatov, Dmitry A.; Fortuna-Perez, Ana P.; Fortunato, Renée H.; Gagnon, Edeline; Gasson, Peter; Rando, Juliana G.; Tozzi, Ana M.G.A.; Gunn, Bee; Harris, David; Haston, Espeth; Hawkins, Julie A.; Herendeen, Patrick S.; Hughes, Colin E.; Iganci, João R.V.; Javadi, Firouzeh; Kanu, Sheku A.; Kazempour-Osaloo, Shahrokh; Kite, Geoffrey C.; Klitgaard, Bente B.; Kochanovski, Fábio J.; Koenen, Erik J.M.; Kovar, Lynsey; Lavin, Matt; Lewis, Gwilym P.; De Lima, Haroldo C.; López-Roberts, Maria C.; Mackinder, Barbara; Maia, Vitor H.; Malécot, Valéry; Mansano, Vidal F.; Marazzi, Brigitte; Mattapha, Sawai; Miller, Joseph T.; Mitsuyuki, Chika; Moura, Tania; Murphy, Daniel J.; Nageswara-Rao, Madhugiri; Nevado, Bruno; Neves, Danilo; Ojeda, Dario I.; Pennington, R. Toby; Prado, Darién E.; Prenner, Gerhard; De Queiroz, Luciano P.; Ramos, Gustavo; Filardi, Fabiana L.R.; Ribeiro, Pétala G.; Rico-Arce, María L.; Sanderson, Michael J.; Santos-Silva, Juliana; São-Mateus, Wallace M.B.; Silva, Marcos J.S.; Simon, Marcelo F.; Sinou, Carole; Snak, Cristiane; De Souza, Élvia R.; Sprent, Janet; Steele, Kelly P.; Steier, Julia E.; Steeves, Royce; Stirton, Charles H.; Tagane, Shuichiro; Torke, Benjamin M.; Toyama, Hironori; Da Cruz, Daiane Trabuco; Zimmerman, Erin; Da Cruz; Wieringa, Jan J.; Wink, Michael; Wojciechowski, Martin F.; Yahara, Tetsukazu; Yi, Tingshuang; Daiane Trabuco
- ItemOberholzeria (Fabaceae subfam. Faboideae), a New Monotypic Legume Genus from Namibia(2015-03-27) Swanepoel, W; Wojciechowski, MF; Van Wyk, A.E.
- ItemProducing a plant diversity portal for South Africa(2017-04-02) Wilkin, P.; Balkwill, K.; Boatwright, J.S.; Bytebier, B.; Filer, D.; Klak, C.; Livermore, L.; Lubke, R.; Paton, A.; Pearce, T.; Slingsby, J.; Van Wyk, B-E.
- ItemSANBI Biosystematics Researchers showcase their work at the 20th International Botanical Congress(2024-12) Le Roux, M.M.; Parker, T.; Klopper, R.R.
- ItemSANBI Gazette(2023)