HBES 2009 0 WELCOME TO HBES 2009 __________________________________________________________________________________ Dear Colleagues, Welcome to the 21st Annual Meeting of the Human Behavior and Evolution Society, and to California State University at Fullerton (CSUF). We are honored to host this year’s meeting which falls on the 200th anniversary of Darwin's birth and the 150th anniversary of the publication of The Origin of Species. To mark this occasion, James Moore will be speaking on Darwin’s Sacred Cause and the Problem of Slavery at this year’s banquet. We are excited about this year’s lineup of keynote and plenary speakers and the quality of the over 300 papers and posters that will be presented. On behalf of the host committee and CSUF, I thank you for attending and hope you enjoy the presentations and this opportunity to socialize and exchange ideas with your colleagues. John Q. Patton __________________________________________________________________________________ Conference Organizer John Patton Program Committee Aaron Goetz (Chair), John Bock, & Joseph Manson Organizational Staff Pat Balderas, Matt Bridges, Rose Calderón, Tannise Collymore, Mimi Ko Cruz Anhhoa Lu, Andy Pho Sponsors CSUF Department of Anthropology CSUF Department of Psychology Student Volunteers Jessica Andrews Catherine Lui Joshua Bernstein Giovanni Magginett Shiloh Betterley Cynthia Marquez Amy Colby Justin Myrick Kevin DeMera Norma Quirarte Kristen Fong Gorge Romero Brooke Gentle Stephanie Struckus Jenna Goldfein Michelle Steiner Daniel Grihalva Christopher Uraine Wendy Gutierrez Tim Winters Michael Guzzi HBES 2009 1 TABLE OF CONTENTS __________________________________________________________________________________ Quick Schedule . 2 Program of Events Wednesday . 4 Thursday . 4 Friday . 8 Saturday . 12 Sunday . 15 Keynote, Plenary, and Banquet Address Abstracts . 18 Session and Symposium Abstracts Thursday Morning Sessions (A1-A4) . 22 Thursday Afternoon Sessions (B1-B4) . 29 Thursday Evening Sessions (C1-C4) . 34 Friday Morning Sessions (D1-D4) . 40 Friday Afternoon Sessions (E1-E4) . 47 Friday Evening Sessions (F1-F4) . 53 Saturday Morning Sessions (G1-G4) . 59 Saturday Afternoon Sessions (H1-H3) . 64 Saturday Evening Sessions (I1-I4) . 68 Sunday Early Morning Sessions (J1-J4) . 74 Sunday Late Morning Session (K1-K3) . 78 Poster Abstracts . 82 Author Index . 125 Floor Plans . 131 Campus Maps . 133 HBES 2009 2 QUICK SCHEDULE __________________________________________________________________________________ Wednesday, May 27 1:00-9:00pm Registration Chapman Atrium 7:00-9:00pm Welcome Reception Portola Pavilion C Thursday, May 28 9:00-9:15am Coffee Chapman Atrium 9:00-5:00pm Registration Chapman Atrium 9:15-9:30am Welcome & Announcements Portola Pavilion A & B 9:30-10:30am Morning Plenary by Joseph Henrich Portola Pavilion A & B 10:30-10:50am Break 10:50-12:30pm Morning Sessions (A1-A4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 12:30-1:40pm Lunch Break 12:30-1:40pm HBES Executive Council Meeting Alvarado 1:40-2:40pm Afternoon Plenary by Hanna Kokko Portola Pavilion A & B 2:40-3:00pm Break 3:00-4:20pm Afternoon Sessions (B1-B4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 4:20-4:40pm Break 4:40-6:00pm Evening Sessions (C1-C4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 6:00-6:20pm Break 6:20-7:40pm Keynote by Stephen Stearns Portola Pavilion A, B, & C Friday, May 29 8:00-8:30am Coffee Chapman Atrium 8:00-5:00pm Registration Chapman Atrium 8:30-9:30am Morning Plenary by Hillard Kaplan Portola Pavilion A & B 9:30-9:50am Break 9:50-11:30am Morning Sessions (D1-D4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 11:30-12:40pm Lunch Break 11:30-12:40pm HBES Publications Committee Meeting Alvarado 12:40-1:40pm Afternoon Plenary by Caleb Finch Portola Pavilion A & B 1:40-2:00pm Break 2:00-3:40pm Afternoon Sessions (E1-E4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 3:40-4:00pm Break 4:00-5:20pm Evening Sessions (F1-F4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 4:00-7:00pm Poster Session TSU Courtyard 7:00-9:30pm BBQ Fullerton Arboretum HBES 2009 3 Saturday, May 30 9:00-9:30am Coffee Chapman Atrium 9:00-5:00pm Registration Chapman Atrium 9:30-10:30am Morning Plenary by Robert Kurzban Portola Pavilion A & B 10:30-10:50am Break 10:50-12:30pm Morning Sessions (G1-G4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 12:30-1:40pm Lunch Break 12:30-1:40pm Open Member Meeting Titan Theater 1:40-2:40pm Afternoon Plenary by Virpi Lummaa Portola Pavilion A & B 2:40-3:00pm Break 3:00-4:40pm Afternoon Sessions (H1-H3) Titan Theater, Gabrielino, Ontiveros, & Alvarado 4:40-5:00pm Break 5:00-6:40pm Evening Sessions (I1-I4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 6:40-7:00pm Break 7:00-9:00pm Banquet & Banquet Address by James Moore Portola Pavilion A, B, & C Sunday, May 31 9:00-9:30am Coffee Chapman Atrium 9:00-12:00pm Registration Chapman Atrium 9:30-10:30am Morning Sessions (J1-J4) Titan Theater, Gabrielino, Ontiveros, & Alvarado 10:30-10:40am Break 10:40-12:00pm Late Morning Sessions (K1-K3) Titan Theater, Gabrielino, Ontiveros, & Alvarado __________________________________________________________________________________ HBES 2009 4 PROGRAM OF EVENTS __________________________________________________________________________________ Wednesday, May 27 . 1:00-9:00pm Registration Chapman Atrium 7:00-9:00pm Welcome Reception Portola Pavilion C Thursday, May 28 . 9:00-9:15am Coffee Chapman Atrium 9:15-9:30am Welcome & Announcements P. Pavilion A & B 9:30-10:30am Morning Plenary by Joseph Henrich P. Pavilion A & B Culture and the Evolution of Human Sociality 10:30-10:50am Break Thursday Morning Sessions Session A-1: Warfare and Intergroup Conflict Titan Theater Chair: Joshua D. Duntley Th 10:50 The psychology of warfare Joshua D. Duntley, David M. Buss Th 11:10 Infectious disease causes global variation in the frequency of intrastate armed conflict and civil war Kenneth Letendre, Corey L. Fincher, Randy Thornhill Th 11:30 Demographic and individual factors as causes of suicide terrorism Kyle Gibson Th 11:50 The origin of human warfare: Experimental results to link processing war scenes to mating primes Lei Chang, Huijing Lu, Tong Li, Hongli Li Th 12:10 Sexual selection and the psychological architecture of race bias C. David Navarrete Session A-2: Cooperation Gabrielino Chair: Joseph H. Manson Th 10:50 Does conversational conduct among strangers predict expectations of defection in a one-shot prisoner’s dilemma game? J.H. Manson, M.M. Gervais, M.A. Kline, R.L. George Th 11:10 The evolution of human cooperation: Ecological and intra-cultural variation in normative behavior Shakti Lamba Th 11:30 The paradox of cooperation benefits Karoly Takacs, Andras Nemeth Th 11:50 Facial expressions of emotion as signals of cooperation Joanna Schug, Toshio Yamagishi, David Matsumoto, Yataka Horita, Kemberlee Bonnet Th 12:10 Is group selection viable for highly mobile organisms? Rethinking the assumptions of standard group selection models C. Athena Aktipis HBES 2009 5 Session A-3: Life History 1 Ontiveros Chair: Bruce J. Ellis Th 10:50 Fundamental dimensions of environmental risk: The impact of harsh versus unpredictable environments on the evolution and development of life history strategies Bruce J. Ellis, Aurelio Jose Figueredo, Barbara H. Brumbach, Gabriel L. Schlomer Th 11:10 Growth and nutritional status in an indigenous lowland Ecuadorian population L.S. Sugiyama, J.J. Snodgrass, A.D. Blackwell, F.C. Madimenos, T.J. Cepon, T.R. Gandolfo, M.A. Liebert Th 11:30 Are quantity-quality tradeoffs reflected in the immune function of human children? An analysis of immune function, illness frequency, and family composition in a Shuar village Aaron D. Blackwell, J. Josh Snodgrass, Felicia C. Madimenos, Tara J Cepon, Tiffany R. Gandolfo, Lawrence S. Sugiyama Th 11:50 Differential maternal somatic investment in response to local environmental variation in a modern population Daniel J. Kruger, Melissa A. Munsell Session A-4: Facial Masculinity Alvarado Chair: Benedict C. Jones Th 10:50 Facial cues of dominance modulate reflexive gaze-cuing in human observers Benedict C. Jones, Lisa M. DeBruine, Julie C Main, Anthony C Little, Lisa L.M. Welling, David R Feinberg Th 11:10 Women’s preferences for masculinity in male faces are predicted by pathogen disgust, but not moral or sexual disgust Lisa M. DeBruine, Benedict C. Jones, Joshua M. Tybur, Debra Lieberman, Vladas Griskevicius Th 11:30 The masculine face: Facial characteristics that increase a male’s mate value Jack Demarest, Arci Guzman Th 11:50 Mothers and mate choice: Facial Preferences in a cross-cultural sample Isabel Scott, William Jankowiak, Viren Swami, Zejun Huang, Yangke Zhao, Ian Penton-Voak Th 12:10 Waist-hip ratio predicts women’s preferences for masculine male faces, but not perceptions of men’s trustworthiness Finlay G. Smith, Benedict C. Jones, Lisa M. DeBruine, Lisa L.W. Welling, Jovana Vukovic, Julie C. Main, Anthony C. Little 12:30-1:40pm Lunch Break 12:30-1:40pm HBES Executive Council Meeting Alvarado 1:40-2:40pm Afternoon Plenary by Hanna Kokko P. Pavilion A & B Which Sex Does What, and Why? 2:40-3:00pm Break Thursday Afternoon Sessions Session B-1: Foraging Titan Theater Chair: Andreas Wilke Th 3:00 Cognitive adaptations for resource search: Explaining hot hands and fallacious gamblers Andreas Wilke, H. Clark Barrett, Peter M. Todd Th 3:20 Physiology of foraging choice: Blood glucose and future discounting X.T. Wang, Robert D. Dvorak Th 3:40 Optimal foraging in semantic memory Peter M. Todd, Thomas H. Hills, Michael N. Jones, Andreas Wilke Th 4:00 You can’t always get what you want: The motivational effect of need on risky decision-making Sandeep Mishra, Martie L. Lalumiere HBES 2009 6 Session B-2: Women’s Mate Preferences 1: Muscularity, Strength, & Dominance Gabrielino Chair: David A. Frederick Th 3:00 Preferences for muscularity in 26 countries across 10 world regions: Results from the International Body Project I David A.