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Royal incest and inclusive fitness
Author(s) -
BERGHE PIERRE L.,
MESHER GENE M.
Publication year - 1980
Publication title -
american ethnologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.875
H-Index - 78
eISSN - 1548-1425
pISSN - 0094-0496
DOI - 10.1525/ae.1980.7.2.02a00050
Subject(s) - polygyny , sociobiology , inbreeding , inclusive fitness , harem , daughter , demography , genealogy , sociology , biology , evolutionary biology , population , history
Royal incest (mostly brother‐sister; less commonly father‐daughter) represents the logical extreme of hypergyny. Women in stratified societies maximize fitness by marrying up; the higher the status of a woman, the narrower her range of prospective husbands. This leads to a direct association between high status and inbreeding. Royal incest is a fitness maximizing strategy if the following conditions are met: polygyny, patrilineal succession, and parental control of royal succession. Under those conditions, the genetic risks of close inbreeding are more than accounted for by the production of a highly related male heir who has, himself, access to a large harem. Data from Ancient Egypt, Inca Peru, Hawaii, Thailand, Monomotapa, Bunyoro, Ankole, Buganda, Shilluk, Zande, Nyanga and Dahomey confirm hypotheses derived from the sociobiological paradigm of inclusive fitness. [hypergyny, inbreeding, incest, inclusive fitness, polygyny, royalty, sociobiology]