Dr Radloff

I did a PhD in Botany, MSc in Zoology and a BSc (Hons) in Wildlife Management. My Master’s degree research at the Mammal Research Institute of University Pretoria (2000-01) pertained to the relationship between the size of large predators and their prey in the Lowveld area of Mpumalanga. My PhD work at Stellenbosch University (2005-08) focused on the ecology of large herbivores native to the coastal lowlands of the Fynbos Biome in the Western Cape. During 2009/10, as a postdoctoral student, I studied the diet of the Nile crocodile population in the Okavango Delta using stable isotope analysis as a collaborative effort between Environment Canada and Stellenbosch University. My research interests lie within community ecology and ecosystem functioning, with particular interest in how animals influence and shape ecosystems by means of herbivory and predation.

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I am currently supervising five MTech Nature Conservation students with the following research topics:

Maya Beukes - Spatial and temporal variation of lion (Panthera leo) diet within the Kalahari Gemsbok National Park. More information

Otto Beukes - Drivers of lion (Panthera leo) demography in the Kalahari Gemsbok National Park. More information

Robin Colyn - Development and use of an optimal camera trap survey design to assess mammalian species richness and distribution on the Cape Peninsula.

Ruwimbo Mutirwara - The development and use of stable isotope analysis of large terrestrial felid whiskers as a tool to study their feeding ecology.

Riaan van der Walt - Black bass (Micropterus spp.) in the Olifants - Doorn River System: Distribution, distribution barriers, predatory impact and management.

Selected publications

Radloff, F. G. T., Van der Waal, C. & Bond, A. L (2013) Extensive browsing by a conventional grazer? Stable carbon isotope analysis reveals extraordinary dietary flexibility among Sanga cattle of North Central Namibia. Isotopes in Environmental and Health Studies, DOI: 10.1080/10256016.2013.789025

Radloff, F. G. T., Hobson, K. A. & Leslie, A. J. (2012) Characterising ontogenetic niche shifts in Nile crocodile using stable isotope (δ13C, δ15N) analyses of scute keratin. Isotopes in Environmental and Health Studies, 48 (3): 439-456, DOI:10.1080/10256016.2012.667808

Radloff, F.G.T., Mucina, L., Bond, W.J. & le Roux, P.J. (2010) Strontium-isotope analysis of large herbivore habitat preferences in the Cape Fynbos region. Oecologia, 164: 567-578.

Matthee, S., Horak, I.G, van der Mescht, L., Ueckermann, E.A. & Radloff, F.G.T. (2010) Ectoparasite diversity on rodents at De Hoop Nature Reserve, Western Cape Province. African Zoology, 45 (2): 213-224.

Radloff, F. G. T. & Mucina, L. (2007) Dealing with structurally diverse vegetation: a quick and robust method for biomass estimation. Journal of Vegetation Science, 18: 719 - 724.

Radloff, F.G.T. & Du Toit, J.T. (2004) Large predators and their prey in a southern African savanna: a predators size determines its prey size range. Journal of Animal Ecology, 73: 410 - 423.