Zobrazeno 1 - 10
of 45
pro vyhledávání: '"S.W. Todd"'
Publikováno v:
South African Journal of Botany. 135:201-211
The distribution patterns and determinants of biodiversity in the Nama-Karoo Biome are poorly known. This poses a problem for conservation given the impact that future developments (e.g. uranium mining, fracking) and global climate change are likely
Publikováno v:
African Journal of Range & Forage Science. 38:157-168
The 75 000 ha, hyper-arid area of Riemvasmaak represents one of the first land restitution cases in post-apartheid South Africa. People who were forcibly removed in 1974 were resettled in 1995. We ...
Publikováno v:
African Journal of Range & Forage Science. 35:277-287
This study used a fence-line contrast approach to investigate the long-term impact of high grazing pressure on the vegetation at a site in Namaqualand, South Africa. Forty pairs of permanently mark...
Autor:
Suzanne J. Milton, Helga van der Merwe, W. Richard J. Dean, Gina Arena, S.W. Todd, Marco J Pauw, Joh R. Henschel
Publikováno v:
African Journal of Range and Forage Science; Vol 35, No 3-4 (2018); 257-265
Tierberg-LTER is a research site established in 1987 in the semi-arid Succulent Karoo near Prince Albert in the Western Cape province, South Africa. The original purpose for its establishment was to study ecosystem dynamics and the drivers of vegetat
Autor:
S.W. Todd, M. Timm Hoffman
Publikováno v:
Ecological Applications. 19:1897-1908
The mediterranean ecosystems of the world harbor exceptional biodiversity, and factors such as livestock grazing which may negatively affect biodiversity are of global concern. The mediterranean ecosystems of southern Africa have only sporadically be
Autor:
Rick Rohde, Christoph Külls, Efrat Morin, Carole Roberts, Ofer Dahan, Tamir Grodek, Gerardo Benito, B. A. Botero, Yehouda Enzel, S.W. Todd, Mary Seely
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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27 pages, figures, and tables statistics.
This paper summarises innovative research into the assessment of longterm groundwater recharge from flood events in dryland environments of the Kuiseb (Namibia) and the Buffels (South Africa) rivers. The
This paper summarises innovative research into the assessment of longterm groundwater recharge from flood events in dryland environments of the Kuiseb (Namibia) and the Buffels (South Africa) rivers. The
Publikováno v:
Plant and Soil. 320:321-332
Data from 199 plots in the semi-arid Karoo showed that relationships between soil infiltrability and plant cover/species richness, as depicted by boundary lines, yielded ecological insights not evident if only commonly measured soil properties such a
Publikováno v:
Journal of Arid Environments. 72:808-819
Changes in species richness and vegetation composition in the diverse semi-arid Succulent Karoo vegetation of South Africa were investigated after 67 (1937–2004) years of rest from livestock grazing at the Worcester Veld Reserve (WVR). This 72 ha r
Autor:
S.W. Todd
Publikováno v:
Journal of Applied Ecology. 43:293-304
Summary 1 Gradients of animal impact known as piospheres tend to develop around artificial watering points, particularly in arid zones. Such grazing gradients represent a potential opportunity for differentiating the long-term effects of livestock ac
Publikováno v:
Ecological Modelling. 183:211-230
The communal areas of the semi-arid (200 mm) winter-rainfall Namaqualand region of South Africa are heavily utilised by a large number of subsistence farmers who keep sheep and goats. For several decades, farmers have maintained, on average, more tha