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Dive into the research topics where Julia A. Lee-Thorp is active.

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Featured researches published by Julia A. Lee-Thorp.


Nature | 2011

Strontium isotope evidence for landscape use by early hominins

Sandi R. Copeland; Matt Sponheimer; Darryl J. de Ruiter; Julia A. Lee-Thorp; Daryl Codron; Petrus le Roux; Vaughan Grimes; Michael P. Richards

Ranging and residence patterns among early hominins have been indirectly inferred from morphology, stone-tool sourcing, referential models and phylogenetic models. However, the highly uncertain nature of such reconstructions limits our understanding of early hominin ecology, biology, social structure and evolution. We investigated landscape use in Australopithecus africanus and Paranthropus robustus from the Sterkfontein and Swartkrans cave sites in South Africa using strontium isotope analysis, a method that can help to identify the geological substrate on which an animal lived during tooth mineralization. Here we show that a higher proportion of small hominins than large hominins had non-local strontium isotope compositions. Given the relatively high levels of sexual dimorphism in early hominins, the smaller teeth are likely to represent female individuals, thus indicating that females were more likely than males to disperse from their natal groups. This is similar to the dispersal pattern found in chimpanzees, bonobos and many human groups, but dissimilar from that of most gorillas and other primates. The small proportion of demonstrably non-local large hominin individuals could indicate that male australopiths had relatively small home ranges, or that they preferred dolomitic landscapes.


Archive | 2007

Icarus, isotopes, and australopith diets

Matt Sponheimer; Julia A. Lee-Thorp; Darryl J. de Ruiter


Codron, D; Codron, J; Lee-Thorp, J A; Sponheimer, M; de Ruiter, D J; Brink, J S (2006). Dietary variation in impala Aepyceros melampus recorded by carbon isotope composition of feces. Acta Zoologica Sinica, 52(6):1015-1025. | 2006

Dietary variation in impala Aepyceros melampus recorded by carbon isotope composition of feces

Daryl Codron; Jacqui Codron; Julia A. Lee-Thorp; Matt Sponheimer; D J de Ruiter; James S. Brink


Archive | 2007

Hominin paleodiets: the contribution of stable isotopes

Matt Sponheimer; Julia A. Lee-Thorp


Archive | 2006

Biogeochemical approaches to investigating hominin diets

Julia A. Lee-Thorp; Matt Sponheimer


Archive | 1999

The ecological significance of oxygen isotopes in enamel carbonate

Matt Sponheimer; Julia A. Lee-Thorp


The 82nd Annual Meeting of the Society for American Archaeology | 2018

Travelling across the Atacama Desert: New Evidence for Human Mobility in Northern Chile Based on Oxygen and Strontium Isotopes

Francisca Santana Sagredo; Petrus le Roux; Rick Schulting; Julia A. Lee-Thorp; Mauricio Uribe


The 80th Annual Meeting of the Society for American Archaeology | 2015

Testing the Paleo-Agulhas Plain Migration Ecosystem hypothesis with serial isotope analysis of fossil fauna

Sandi R. Copeland; Hayley C. Cawthra; Richard M. Cowling; Julia A. Lee-Thorp; Petrus LeRoux


Archive | 2013

Hominin Paleodiets Palaeodiets : The Contribution of Stable Isotopes

Matt Sponheimer; Julia A. Lee-Thorp


Archive | 2012

22 Animal palaeocommunity variability and habitat preference of the robust australopiths in South Af

Darryl J. de Ruiter; Matt Sponheimer; Julia A. Lee-Thorp

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Matt Sponheimer

University of Colorado Boulder

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Darryl J. de Ruiter

University of the Witwatersrand

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Daryl Codron

University of the Free State

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Hayley C. Cawthra

Nelson Mandela Metropolitan University

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