Helga van der Merwe - NARA Discovery

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Helga van der Merwe results 8 · Newest (Page 1/1, per page 25)

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Edaphic and climatic drivers of herbaceous plant diversity in geologically distinct mountain floras of Griqualand West, South AfricaNARA Subscribed

South African Journal of Botany · 2026 · Vol. 190 · Elsevier

Nanette van Staden; Helga van der Merwe; Stefan Siebert

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The long-term decline of a succulent tree, Aloidendron pillansii, in the hyper-arid Richtersveld region of southern AfricaNARA Subscribed

Journal of Arid Environments · 2026 · Vol. 234 · Academic Press

M. Timm Hoffman; Peter J. Carrick; Michael D. Cramer; Elsabé Swart; Justin J. van Blerk; Helga van der Merwe

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Land cover, drought, and dust emission in arid Succulent Karoo shrublandsNARA Subscribed

Aeolian Research · 2025 · Vol. 74 · Elsevier

Heleen C. Vos; Johanna R. von Holdt; Helga van der Merwe; Igshaan Samuels; Ute Schmiedel; Norbert Jürgens; Juliane Krenz; Mmoto L. Masubelele; Bavisha Koovarjee; Wolfgang Fister; Frank D. Eckardt; Clement Cupido; Nikolaus J. Kuhn; Susanne Fietz

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Predicting plant community change using satellite remote sensing in the Greater Cape Floristic RegionNARA Subscribed

South African Journal of Botany · 2025 · Vol. 186 · Elsevier

Andrew C. Slater; Nelmarie Saayman; Helga van der Merwe; Liesl Vorster; Ian R. Hartley; Alex Bush

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Vegetation response to grazing and drought (13 yr) in a conservation area in the Succulent Karoo, South AfricaNARA Subscribed

Journal of Arid Environments · 2023 · Vol. 219 · Academic Press

Conrad Geldenhuys; Helga van der Merwe; Margaretha W. van Rooyen

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Vegetation description around the savanna flux measurement site at Benfontein Nature Reserve, South AfricaNARA Subscribed

South African Journal of Botany · 2023 · Vol. 162 · Elsevier

Buster Mogonong; Helga van der Merwe; Tshililo Ramaswiela; Amukelani Maluleke; Gregor Feig

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The brown locust refocussed - Knowns, unknowns and the relevance of Locustana pardalina (Walker) to Karoo ecosystems and rangeland managementNARA Subscribed

Journal of Arid Environments · 2023 · Vol. 215 · Academic Press

Joh R. Henschel; Frances D. Duncan; Justin C.O. du Toit; Suzanne J. Milton; Helga van der Merwe

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Plant spectral diversity as a surrogate for species, functional and phylogenetic diversity across a hyper‐diverse biogeographic regionNARA Subscribed

Global Ecology and Biogeography · 2021 · Vol. 30 · Issue 7 · Wiley

Henry A. Frye; Matthew E. Aiello‐Lammens; Douglas Euston‐Brown; Cynthia S. Jones; Hayley Kilroy Mollmann; Cory Merow; Jasper A. Slingsby; Helga van der Merwe; Adam M. Wilson; John A. Silander

Aim With plant biodiversity under global threat, there is an urgent need to monitor the spatial distribution of multiple axes of biodiversity. Remote sensing is a critical tool in this endeavour. One remote sensing approach for detecting biodiversity is based on the hypothesis that the spectral diversity of plant communities is a surrogate of multiple dimensions of biodiversity. We investigated the generality of this ‘surrogac...

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