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Taxonomic, anatomical, and spatio-temporal variations in the stable carbon and nitrogen isotopic compositions of plants from an African savanna
TLDR
Variations in the isotopic compositions of plants collected over two years from the Kruger National Park, South Africa are document with respect to species and anatomical differences, and the influences of geological substrate and spatio-temporal shifts in climate are document. Expand
Utilization of savanna-based resources by Plio-Pleistocene baboons
TLDR
Data reveal little evidence for use of grasses or grass-based foods by modern South African baboons, and the colobine monkey, Cercopithecoides williamsi, made extensive use of savanna-based C4 foods, confirming some degree of terrestrial foraging by the species. Expand
ELEPHANT (LOXODONTA AFRICANA) DIETS IN KRUGER NATIONAL PARK, SOUTH AFRICA: SPATIAL AND LANDSCAPE DIFFERENCES
TLDR
The homogeneity of woody vegetation in the north (dominated by Colophospermum mopane “shrubveld”) may deter browsing and force elephants in this area to opt for alternative food sources (grass) throughout the seasonal cycle. Expand
Diets of savanna ungulates from stable carbon isotope composition of faeces
TLDR
Cluster analysis based on a data matrix that incorporates the extent of spatio-temporal dietary variation among Kruger Park ungulates reveals several distinct categories of feeding preferences that extend beyond a two-edged browser/grazer dichotomy, such as mixed-feeders with a preference for either forage class, and spatial/seasonal shifts between uniform and mixed-feeding styles among variable browsers. Expand
Do "savanna" chimpanzees consume C4 resources?
TLDR
These data suggest that the Fongoli chimpanzees consume little in the way of C(4) vegetation or animals that eat such vegetation, even though these resources are locally abundant and preferred fruits are more widely scattered than at most chimpanzee study sites. Expand
Assessing the Jarman-Bell Principle: Scaling of intake, digestibility, retention time and gut fill with body mass in mammalian herbivores.
TLDR
Traditional explanations for herbivore niche differentiation along a BM gradient should not be based on allometries of digestive physiology, and differences in the scaling of wet gut contents and dry matter gut contents confirm a previous finding that the dry matter concentration of gut contents decreases with body mass. Expand
Significance of diet type and diet quality for ecological diversity of African ungulates.
TLDR
Results show that, contrary to many predictions, body mass and diet type are not related, but these data confirm predictions that diet quality decreases with increasing body size, especially during the dry season, which implies that adaptation to diets of varying quality, through changes in body size and dental features, has been the primary mechanism for diversification in ungulates. Expand
Hominins, sedges, and termites: new carbon isotope data from the Sterkfontein valley and Kruger National Park.
TLDR
The consumption of C4 foods is a fundamental hominin trait that, along with bipedalism, allowed australopiths to pioneer increasingly open and seasonal environments. Expand
What Insights Can Baboon Feeding Ecology Provide for Early Hominin Niche Differentiation?
TLDR
The absence of a fixed-diet in papionins implies that it was unlikely that the more ecologically flexible hominins evolved specializations for any one food type, an interpretation consistent with recent carbon isotope, dental microwear, and ecomorphological studies. Expand
Inter- and intrahabitat dietary variability of chacma baboons (Papio ursinus) in South African savannas based on fecal δ13C, δ15N, and %N
TLDR
Fecal N levels in baboons are consistently higher than those of sympatric ungulate herbivores, indicating that baboons consume a greater proportion of protein-rich foods than do other savanna mammals. Expand
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