| The Great Escarpment of southern Africa: a new frontier for biodiversity exploration VR Clark, NP Barker, L Mucina Biodiversity and Conservation 20, 2543-2561, 2011 | 132 | 2011 |
| The Sneeuberg: a new centre of floristic endemism on the Great Escarpment, South Africa VR Clark, NP Barker, L Mucina South African Journal of Botany 75 (2), 196-238, 2009 | 95 | 2009 |
| The Roggeveldberge—Notes on a botanically hot area on a cold corner of the southern Great Escarpment, South Africa VR Clark, NP Barker, L Mucina South African Journal of Botany 77 (1), 112-126, 2011 | 32 | 2011 |
| Global endemics-area relationships of vascular plants C Hobohm, M Janišová, M Steinbauer, S Landi, R Field, S Vanderplank, ... Perspectives in Ecology and Conservation 17 (2), 41-49, 2019 | 31 | 2019 |
| Rich Sister, Poor Cousin: Plant Diversity and Endemism in the Great Winterberg–Amatholes (Great Escarpment, Eastern Cape, South Africa) VR Clark, AP Dold, C McMaster, G McGregor, C Bredenkamp, NP Barker South African Journal of Botany 92, 159-174, 2014 | 31 | 2014 |
| Think globally, measure locally: The MIREN standardized protocol for monitoring plant species distributions along elevation gradients S Haider, JJ Lembrechts, K McDougall, A Pauchard, JM Alexander, ... Ecology and evolution 12 (2), e8590, 2022 | 30 | 2022 |
| Endemism in mainland regions–case studies SE Vanderplank, A Moreira-Munoz, C Hobohm, G Pils, J Noroozi, ... Endemism in vascular plants, 205-308, 2013 | 24 | 2013 |
| The Boschberg (Somerset East, Eastern Cape)—A floristic cross-roads of the southern Great Escarpment VR Clark, NP Barker, C McMaster, M Ladislav South African Journal of Botany 77 (1), 94-104, 2011 | 24 | 2011 |
| Biology of invasive plants 1. Pyracantha angustifolia (Franch.) CK Schneid LD Chari, GD Martin, SL Steenhuisen, LD Adams, VR Clark Invasive Plant Science and Management 13 (3), 120-142, 2020 | 22 | 2020 |
| Taking the scenic route–the southern Great Escarpment (South Africa) as part of the Cape to Cairo floristic highway VR Clark, N Barker, L Mucina Plant Ecology & Diversity 4 (4), 313-328, 2011 | 22 | 2011 |
| The Drakensberg Escarpment as the great supplier of water to South Africa SJ Taylor, JWH Ferguson, FA Engelbrecht, VR Clark, S Van Rensburg, ... Developments in Earth Surface Processes 21, 1-46, 2016 | 20 | 2016 |
| The phytogeography of the Sneeuberg, Nuweveldberge and Roggeveldberge (Great Escarpment): assessing migration routes and endemism VR Clark Rhodes University, 2010 | 20 | 2010 |
| Two new species of Euryops (Asteraceae: Senecioneae) from the Sneeuberg, Eastern Cape Province, South Africa B Nordenstam, VR Clark, N Devos, NP Barker South African Journal of Botany 75 (1), 145-152, 2009 | 19 | 2009 |
| A first comprehensive account of floristic diversity and endemism on the Nyanga Massif, Manica Highlands (Zimbabwe–Mozambique) VR Clark, JR Timberlake, MA Hyde, A Mapaura, MC Palgrave, ... Kirkia 19 (1), 1-53, 2017 | 18 | 2017 |
| A phytogeographic assessment of the Nuweveldberge, South Africa VR Clark, NP Barker, L Mucina South African Journal of Botany 77 (1), 147-159, 2011 | 18 | 2011 |
| Massonia dentata (Asparagaceae, Scilloideae), a new species from the Nuweveldberge, and typification of the Sneeuberg endemic M. calvata (southern Great Escarpment, South Africa). M Martinez-Azorin, VR Clark, M Pinter, AP Dold Phytotaxa 175 (4), 201-205, 2014 | 15* | 2014 |
| The invasive grass genus Nassella in South Africa: A synthesis A Mapaura, K Canavan, DM Richardson, VR Clark, SL Steenhuisen South African Journal of Botany 135, 336-348, 2020 | 14 | 2020 |
| Bridging the divide between intuitive social-ecological value and sustainability in the Manica Highlands of southern Africa (Zimbabwe-Mozambique) VR Clark, J de Deus Vidal Jr, IM Grundy, T Fakarayi, SL Childes, ... Ecosystem Services 39, 100999, 2019 | 14 | 2019 |
| Potential for sustainable mountain farming: challenges and prospects for sustainable smallholder farming in the Maloti–Drakensberg mountains DB Adelabu, VR Clark, E Bredenhand Mountain Research and Development 40 (1), A1, 2020 | 13 | 2020 |
| Two new species of Indigofera L.(Leguminosae) from the Sneeuberg centre of floristic endemism, great escarpment (Eastern and Western Cape, South Africa) VR Clark, BD Schrire, NP Barker PhytoKeys, 29, 2015 | 13 | 2015 |
Nigel BarkerHead of Department of Plant and Soil Sciences在 up.ac.za 的电子邮件经过验证
