دانلود مقاله ISI انگلیسی شماره 35757
عنوان فارسی مقاله

سنجش قدرت و شکل انتخاب جنسی بر صفات مردان

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
35757 2013 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Quantifying the strength and form of sexual selection on men's traits
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Evolution and Human Behavior, Volume 34, Issue 5, September 2013, Pages 334–341

کلمات کلیدی
جذابیت - تسلط - صورت - مردانگی - تمایلات جنسی اجتماعی - صدا
پیش نمایش مقاله
پیش نمایش مقاله سنجش قدرت و شکل انتخاب جنسی بر صفات مردان

چکیده انگلیسی

Although recent research has increasingly focused on human sexual selection, fundamental questions remain concerning the relative influence of individual traits on success in competition for mates and the mechanisms, form, and direction of these sexual selective pressures. Here, we explore sexual selection on men's traits by ascertaining men's dominance and attractiveness from male and female acquaintances. On a large American university campus, 63 men from two social fraternities provided anthropometric measurements, facial photographs, voice recordings, and reported mating success (number of sexual partners). These men also assessed each other's dominance, and 72 women from two socially affiliated sororities assessed the men's attractiveness. We measured facial masculinity from inter-landmark distances and vocal masculinity from acoustic parameters. We additionally obtained facial and vocal attractiveness and dominance ratings from unfamiliar observers. Results indicate that dominance and the traits associated with it predict men's mating success, but attractiveness and the traits associated with it do not. These findings point to the salience of contest competition on men's mating success in this population.

مقدمه انگلیسی

Fig. 1. Linear (β) and quadratic (γ) relationships (statistics shown for statistically significant relationships) between men's traits, success under female choice and male contests, and mating success. Linear, quadratic and interaction terms for variables in each level to the left (e.g., men's traits) were entered into multiple regression models to predict variables at higher levels to the right (e.g., success under female choice). Biceps, chest, and shoulder circumference, and weight were standardized and summed to produce the composite variable, Girth. *p < .05, **p < .001, ***p < .0001. Figure options Although we are interested in how past selection produced present sexual dimorphisms, we take a behavioral ecological approach, which emphasizes contemporary selection. We take this approach because we expect that, in general, current function will provide insight into past function. However, attractiveness, dominance, and even mating success have likely been at least partly decoupled from reproductive success by features of modern industrial environments such as effective contraception and socially imposed monogamy (Perusse, 1993). We therefore examined components of reproductive success that are “upstream” of fertility. Assuming that these components affected ancestral men's reproductive output, and in parallel with nonhuman literature, which also frequently measures only proximate components of fitness, we refer to “selective surfaces”, “directional selection”, and the like.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.