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Izak P.J. Smit
Researcher at University of the Witwatersrand
Publications - 78
Citations - 2646
Izak P.J. Smit is an academic researcher from University of the Witwatersrand. The author has contributed to research in topics: National park & Vegetation. The author has an hindex of 27, co-authored 64 publications receiving 2168 citations. Previous affiliations of Izak P.J. Smit include University of Cambridge & South African National Parks.
Papers
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Do artificial waterholes influence the way herbivores use the landscape? Herbivore distribution patterns around rivers and artificial surface water sources in a large African savanna park
TL;DR: In this paper, a landscape-scale study investigating to what degree artificial waterholes and natural rivers influence the distribution of large herbivores, and hence foraging patterns, in the Kruger National Park, South Africa.
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Mapping tree species composition in South African savannas using an integrated airborne spectral and LiDAR system
Moses Azong Cho,Renaud Mathieu,Gregory P. Asner,Laven Naidoo,Jan van Aardt,Abel Ramoelo,Pravesh Debba,Konrad J Wessels,Konrad J Wessels,Russell Main,Izak P.J. Smit,Barend F.N. Erasmus +11 more
TL;DR: In this article, the authors investigated the utility of the Carnegie Airborne Observatory (CAO) hyperspectral data, and WorldView-2 and Quickbird multispectral spectral data and a combined spectral+tree height dataset (derived from the CAO LiDAR system) for mapping seven common savanna tree species or genera in the Sabi Sands Reserve and communal lands adjacent to Kruger National Park, South Africa.
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Ecology of grazing lawns in Africa
Gareth P. Hempson,Gareth P. Hempson,Sally Archibald,Sally Archibald,William J. Bond,William J. Bond,Roger P. Ellis,C.C. Grant,Fred J. Kruger,Fred J. Kruger,Laurence M. Kruger,Laurence M. Kruger,Courtney Moxley,Norman Owen-Smith,Michael J. Peel,Izak P.J. Smit,Karen J. Vickers +16 more
TL;DR: Differences in growth form among grazing lawn grass species are identified, and how compositional differences among lawn types, as well as environmental variables, influence their maintenance requirements and vulnerability to degradation are assessed.
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Effects of fire on woody vegetation structure in African savanna
Izak P.J. Smit,Gregory P. Asner,Navashni Govender,Ty Kennedy-Bowdoin,David E. Knapp,James Jacobson +5 more
TL;DR: Fire frequency and fire season influence patterns of vegetation three-dimensional structure, which may have cascading consequences for biodiversity, and managers of savannas can use fire frequency and season in concert to achieve specific vegetation structural objectives.
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Ecosystem‐scale effects of megafauna in African savannas
TL;DR: In this paper, the authors report a mean biennial treefall rate of 8 trees or 12% ha−1, but with heterogeneous patterns of loss in both space and time.