Sex differences in diet and life conditions in a rural Medieval Islamic population from Spain (La Torrecilla, Granada): An isotopic and osteological approach to gender differentiation in al-Andalus
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Jiménez Brobeil, Sylvia Alejandra; Charisi, Drosia; Laffranchi, Zita; Maroto Benavides, Rosa María; Delgado Huertas, Antonio; Milella, MarcoEditorial
Wiley-Liss
Materia
Islamic Spain Long bone diaphyseal cross-sectional properties
Date
2021-03Referencia bibliográfica
American Journal of Physical Anthropology
Sponsorship
Proyecto HAR2016-75788-P del Ministerio de Ciencia y Competitividad del Gobierno de EspañaAbstract
Objectives: Gender differentiation can influence the diet, physical activity, and health
of human populations. Multifaceted approaches are therefore necessary when
exploring the biological consequences of gender-related social norms in the past.
Here, we explore the links between diet, physiological stress, physical activity, and
gender differentiation in the Medieval Islamic population of La Torrecilla (Granada,
Spain, 13th–15th century AD), by analyzing stable isotope patterns, stature, and long
bone diaphyseal measurements.
Materials and Methods: The sample includes 96 individuals (48 females, 48 males)
classified as young and middle adults (20–34 and 35–50 years of age respectively).
Diet was reconstructed through the analysis of δ13C and δ15N. Stature, humeral and
femoral diaphyseal shape and product of diaphyseal diameters served as proxies of
physiological stress and physical activity.
Results: Isotopic ratios suggest a substantial dietary contribution of C4 plants
(e.g., sorghum, millet), a variable access to animal proteins, and no differences
between the sexes. Sexual dimorphism in stature derives from a markedly low female
stature. Long bone diaphyseal properties suggest that men performed various physi cally stressful activities, whereas women were involved in less physically demanding
activities (possibly related to household work).
Discussion: Gender differentiation in La Torrecilla was expressed by a possibly differ ential parental investment in male versus female offspring and by culturally sanc tioned gender differences in the performance of physical tasks. Diet was qualitatively
homogenous between the sexes, although we cannot rule out quantitative differ ences. Our results shed new light on the effects of gender-related social norms on
human development and lifestyle.