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A highly successful Third Lembersky Conference ended today. Organized by Erin Vogel (CHES Faculty Member) and Jessica Rothman (Hunter College), the program in primate nutritional ecology, energetics, and health included presentations by 22 scholars including CHES members Gloria Dominguez-Bello, Dan Hoffman, Dominique Raboin, and Erin Vogel, as well as CHES Alumni (now pursuing postdocs) Tim Bransford and Mareike Janiak. What was especially stimulating were the discussions among all of the participants and audience members.
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The Third Lembersky Conference in Human Evolutionary Studies began today. Shown here is CHES Faculty member Dr. Erin Vogel, a co-organzer of the conference, Advances in Primate Nutritional Ecology, Health, and Energetics. The conference brings together a group of international researchers, postdocs, and students, for three days of presentations and in-depth discussions.
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Tim Bransford successfully defended his dissertation less than two months ago, and has now begun working with Dr. Mitch Irwin as a Postdoctoral Fellow in the Department of Anthropology at Northern Illinois University. For his dissertation, Tim investigated the energetics and nutrition of wild mother orangutans during lactation. For this postdoc, Tim will be continuing work on primate nutrition, but this time with various species of lemurs found at Tsinjoarivo, Madagascar. One of his early projects will be studying the diet of the bamboo lemur, which includes foods very high in the deadly chemical cyanide. This primate’s daily intake of cyanide is four times greater than the amount that would kill a human and twelve times higher than the dose that would kill a similarly sized primate. How do these lemurs manage to handle such high levels of this toxin? Tim’s research will provide some answers. We wish Tim the best of luck!
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CHES PhD student Fred Foster just published with coauthor P.J. Constantino a paper testing the hypothesis that wear resistance of tooth enamel changes as a tooth is worn down. Fred and his collaborator applied the microscratch test to the surface of three transverse sections cut through molars from an olive baboon, each of which simulated different degrees of microwear. The research, funded by CHES, showed that as macrowear accrues, the ability of baboon tooth enamel to resist microwear changes, such that a moderate degree of macrwear offers the best resistance to microwear. In the first use of helium ion microscopy to study tooth enamel, Fred imaged prism orientation at each of the three sample surfaces, which generated evidence suggesting different mechanical processes may be involved in the removal of enamel due to microwear, depending on the extent of microwear. The paper can be found at:
Foster, F.R. and Constantino, P.J. 2019. Macrowear and the mechanical behavior of enamel. In: Dental Wear in Evolutionary and Biocultural Contexts (C.B. Schmidt and J.T. Watson, editors). Elsevier, Amsterdam.
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CHES Alum Sarah Hlubik has just begun a postdoc at the Center for the Advanced Study of Human Paleobiology at George Washington University. Sarah obtained her PhD in Anthropology in 2018 for her dissertation "Finding Prometheus: Evidence for fire in the Early Pleistocene at FxJj20 AB, Koobi Fora, Kenya." For her postdoc, she will be working Dr. Dave Braun on the faculty at GW (who is also a CHES Alum, 2006!) to further develop her research on fire from a site-based to a landscape-based perspective. One aspect of this research will allow Sarah to better estimate when fire use became widespread in the hominins inhabiting the Turkana Basin of northwestern Kenya. Congrats on the postdoc, Sarah.
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CHES Graduate Affiliate Tim Bransford (center in photo) passed his doctoral dissertation this afternoon. Tim's dissertation, "The Energetic and Nutritional Costs of Motherhood in Wild Bornean Orangutans" is based on his research in Borneo for almost two years as well as a database of long-term data collected by many researchers at the Tuanan Research Center over the last 15 years. Tim analyzed an impressive array of diverse data sets, ranging from the behavior and activities of lactating female orangutans, to patterns of fruit production in the peat swamp forest, to nutritional aspects of foods eaten, to physiological states (such as the hormone cortisol, C-peptide of insulin, and ketones, all extracted from urine samples). By comparing how females with infants of different age and in different periods of food productivity, Tim's work sheds much light the challenges of motherhood and the adaptive strategies that allow females to handle them. The members of Tim's dissertation committee were, from left to right: Ryne Palombit, Maria van Noordwijk (outside member, University of Zürich), Erin Vogel (Chair), Rob Scott and, not shown, Melissa Emery-Thompson (outside member, University of New Mexico). Congratulations, Tim!
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CHES Graduate Affiliate Melanie Fenton was just awarded a Fulbright US Student Award to Kenya.
Congratulations Melanie!
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CHES Graduate Affiliate Melanie Fenton was just awarded a research grant from the Wenner-Gren Foundation for Anthropological Research to support her work ""Coercive and affiliative mating tactics in olive baboons (Papio anubis)" at her major advisor's site in Kenya. As a recipient of the CHES Albert Fellows Dissertation Research Award, further details of Melanie's study can be found here.
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CHES PhD Alumnus Jay Reti (2013) was just named as the new Director of the Santa Cruz Island Reserve of the University of California, Santa Barbara. Santa Cruz Island is the largest island off the coast of California (about four times larger than Manhattan Island) with many endemic species of plans and animals. Jay will oversee all research on the island and develop conservation and education programs. His work on the island goes back to his High School days in California, but now, as an archaeologist, he sees many lines of research there that indulge his interests in lithic analysis and the development of statistical methods for assessing human reliance on technology. For example, he's studying how raw materials were transported and traded to determine economic patterns and relationships between different populations of Chumash Native Americans on the island.
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Two CHES Undergraduate Affiliates recently won awards for their Senior Honors Thesis research. The Department of Anthropology held its annual symposium showcasing undergraduate research for Senior Honors Theses today. Several of the students were CHES Undergraduate Affiliates. One of them, Sara Magee was 
awarded first prize for the poster presentation of her Honors Thesis research, “The Effects of Chewing Time on Gonial Morphology in the Mammalian Mandible.” The research was supervised by CHES faculty Dr. Susan Cachel, with CHES Associate Member Dr. Hylke de Jong as second committee reader (CHES Graduate Affiliate Fred Foster and CHES Alumnus Shauhin Alavi were also co-authors on Sara’s poster). Tanner Yuhas won the 2019 Robert Locandro Award for the Outstanding Student in Natural Resources, in part for his research, "Understanding Dietary Divergence in Wild Bornean Orangutans: The Role of Kinship," which was supervised by CHES faculty Dr. Erin Vogel, with CHES Faculty Ryne Palombit as second reader.
Congratulations Sara and Tanner!
