32 research outputs found
Individual Facial Coloration in Male Eulemur fulvus rufus: A Condition-dependent Ornament?
Researchers studying individual variation in conspicuous skin coloration in primates have suggested that color indicates male quality. Although primate fur color can also be flamboyant, the potential condition dependence and thus signaling function of fur remains poorly studied. We studied sources of variation in sexually dichromatic facial hair coloration in red-fronted lemurs (Eulemur fulvus rufus). We collected data on 13 adult males in Kirindy Forest, Madagascar, during two study periods in 2006 and 2007, to determine whether variation in facial hair coloration correlates with male age, rank, androgen status, and reproductive success. We quantified facial hair coloration via standardized digital photographs of each male, assessed androgen status using fecal hormone measurements, and obtained data on reproductive success through genetic paternity analyses. Male facial hair coloration showed high individual variation, and baseline coloration was related to individual androgen status but not to any other parameter tested. Color did not reflect rapid androgen changes during the mating season. However, pronounced long-term changes in androgen levels between years were accompanied by changes in facial hair coloration. Our data suggest that facial hair coloration in red-fronted lemur males is under proximate control of androgens and may provide some information about male quality, but it does not correlate with dominance rank or male reproductive success
Sex-stratified Genome-wide Association Studies Including 270,000 Individuals Show Sexual Dimorphism in Genetic Loci for Anthropometric Traits
Peer reviewe
Shell Energy: Mollusc Shells as Coastal Resources. Geoffrey N. Bailey, Karen Hardy, and Abdoulaye Camara, editors. 2013. Oxbow Books, Oxford, x + 326 pp. $100.00 (cloth), ISBN 978-1-84217-765-5.
Knowledge and Power in Prehistoric Societies: Orality, Memory, and the Transmission of Culture. LYNNE KELLY . 2015. Cambridge University Press, New York. xxvi + 276 pp. $99.99 (cloth), ISBN 978-1-107-05937-5.
Correction: Stallings Island Revisited: New Evidence for Occupational History, Community Pattern, and Subsistence Technology
Visual ideologies of the street homeless: Comparing editorial cartoons to fieldwork observations
THE CHRONOLOGY AND HISTORY OF MOUNT TAYLOR PERIOD (CA. 7400–4600 CAL B.P.) SHELL SITES ON THE MIDDLE ST. JOHNS RIVER, FLORIDA
The Anthropocene Biosphere : Supporting ‘Open Interdisciplinarity’ through Blogging
This paper describes a process of ‘open’ interdisciplinary scholarship. Researchers from across the University of Oklahoma blogged about a recent paper by ecologist Erle Ellis, and met in person to discuss posts. They then hosted Ellis for a seminar on questions that emerged, and for a public panel discussion