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Browsing by Author "Hoffman, M T"

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Collapse of an iconic conifer: long-term changes in the demography of Widdringtonia cedarbergensis using repeat photography

Author: White, J D M ; Jack, S L ; Hoffman, M T ; Puttick, J ; Bonora, D ; Visser, V ; February, E C Date: 2016 BACKGROUND: Conifer populations appear disproportionately threatened by global change. Most examples are, however, drawn from the northern hemisphere and long-term rates of population decline are not well documented as historical data are ... Read more
Distribution quantitative morphological variation and preliminary molecular analysis of different growth forms of wild rooibos (Aspalathus linearis) in the northern Cederberg and on the Bokkeveld Plateau

Author: Malgas, R R ; Potts, A J ; Oettlé, N M ; Todd, Simon Wallace ; Verboom, George Anthony ; Hoffman, M T Date: 2010 Aspalathus linearis (Fabaceae) is endemic to the Cape Floristic Region in the Western Cape and Northern Cape Provinces of South Africa. The reddish leaves and stems, primarily of one cultivar, are used to make a commercially important tea ... Read more
Drought, Climate change and Vegetation response in the succulent karoo, South Africa

Author: Hoffman, M T ; Carrick, P J ; Gillson, L ; West, A G Date: 2009 For the winter-rainfall region of South Africa, the frequency of drought is predicted to increase over the next 100 years, with dire consequences for the vegetation of this biodiversity hotspot. We analysed historical 20th century rainfall ... Read more
'Enough to be considered useful': John Acocks' contribution to South African botany

Author: Hoffman, M T ; Cowling, R M Date: 2003 John Acocks died in 1979 after working for nearly 50 years as a botanist in South Africa. His scientific contributions have had a profound influence on southern African ecology and this introductory article which includes a biographical sketch ... Read more
Lack of polymorphism suggests a recent bottleneck of Aloidendron pillansii: Exploration into the population of Aloidendron pillansii from phylogeographical analysis of molecular data

Author: Josephs, Randall Evan Date: 2014 The Karoo-Namib is a species rich region in which many iconic and keystone species are found, such as Aloe pillansii. The recent population history of A.pillansii is poorly understood. However the suggested climatic shifts that occurred ... Read more
'Nature's method of grazing': Non-Selective Grazing (NSG) as means of veld reclamation in South Africa

Author: Hoffman, M T Date: 2003 Acocks was concerned with the past, present and future state of South Africa’s vegetation and in the 1960’s, together with several farmers in the eastern Karoo, developed a grazing system which he thought would restore the vegetation to its ... Read more
North-South cooperation through BIOTA: An interdisciplinary monitoring programme in arid and semi-arid southern Africa

Author: Krug, C B ; Esler, K J ; Hoffman, M T ; Henschel, J ; Schmiedel, U ; Jurgens, N Date: 2006 Connecting disciplines in a north– South collaboration has many advantages: mutualisms evolve, synergies are created and spin-offs emerge. The BIOTA South (Biodiversity Monitoring Transect Analysis in southern Africa) programme, with its ... Read more
The phenological pattern of vegetation in Namaqualand, South Africa and its climatic correlates using NOAA-AVHRR NDVI Data

Author: Fox, S C ; Hoffman, M T ; Hoare, D Date: 2005 Remote sensing techniques were used to reveal the vegetation patterns in the greater Namaqualand area and to relate them to climatic variables. We related the normalised difference vegetation index (NDVI) to a range of different rainfall and ... Read more
The nature, extent and causes of land degradation in South Africa: legacy of the past, lessons for the future?

Author: Meadows, M E ; Hoffman, M T Date: 2002 The aim of this paper is to reassess the land degradation and desertification problem in South Africa. The country has a wide range of interrelated environmental and development challenges existing in a socio-political context recently subject ... Read more

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Browsing by Author "Hoffman, M T"

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