• Publications
  • Influence
Stable carbon isotope ratio differences between bone collagen and bone apatite, and their relationship to diet
A large set of δ13C values for both the organic (collagen) and inorganic (apatitic) components of bone and tooth is presented for southern African fauna. Equations are obtained to describe variationExpand
  • 665
  • 52
Abstract Although bovids have been studied for decades, debate still exists about their diets. To address this problem, we examined bovid dietary ecology through analysis of stable carbon isotopes.Expand
  • 216
  • 19
  • PDF
Timing of C4 grass expansion across sub-Saharan Africa.
The emergence of C(4) grass biomes is believed to have first taken place in the upper Miocene, when a series of events modified global climate with long-lasting impacts on continental biotas. ChangesExpand
  • 146
  • 18
Oxygen Isotopes in Enamel Carbonate and their Ecological Significance
Stable carbon isotope analysis of fossil tooth enamel carbonate, and oxygen isotope analysis of bone or enamel phosphate, are established tools for palaeodietary and palaeoclimatic reconstruction,Expand
  • 244
  • 17
  • PDF
Combining isotopic and ecomorphological data to refine bovid paleodietary reconstruction: a case study from the Makapansgat Limeworks hominin locality.
The relationship between environmental change and hominin evolution remains obscure. For the most part, this stems from the difficulty of reconstructing ancient hominin habitats. Bovids are among theExpand
  • 120
  • 16
  • PDF
Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus
Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysisExpand
  • 179
  • 14
Isotopic evidence for the diet of an early hominid, Australopithecus africanus.
Current consensus holds that the 3-million-year-old hominid Australopithecus africanus subsisted on fruits and leaves, much as the modern chimpanzee does. Stable carbon isotope analysis of A.Expand
  • 298
  • 13
  • PDF
Rapid climate shifts in the southern African interior throughout the Mid to Late Holocene
A detailed climate proxy record based on δ18O, δ13O, and grey index of a well-dated stalagmite from Cold Air Cave in the Makapansgat Valley of north-eastern South Africa suggests that regionalExpand
  • 107
  • 13
Isotopic evidence of early hominin diets
Carbon isotope studies of early hominins from southern Africa showed that their diets differed markedly from the diets of extant apes. Only recently, however, has a major influx of isotopic data fromExpand
  • 174
  • 12
  • PDF
Diets of savanna ungulates from stable carbon isotope composition of faeces
Hypotheses to explain diversity among African ungulates focus largely on niche separation along a browser/grazer continuum. However, a number of studies advocate that the browser/grazer distinctionExpand
  • 150
  • 12