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Evolution of monogamous marriage by maximization of inclusive L. FORTUNATO*1
 

Summary: Evolution of monogamous marriage by maximization of inclusive
fitness
L. FORTUNATO*1
& M. ARCHETTI 2
*Department of Anthropology, University College London, London, UK
Department of Zoology, University of Oxford, Oxford, UK
Introduction
Background
Eighty-three percent of human societies allow polygy-
nous marriage (Murdock & White, 1969; Murdock &
Wilson, 1972). In humans, as in other sexually repro-
ducing species, the lower investment in gametes by males
leads to the higher potential rate of reproduction of
individual males relative to individual females. This,
coupled with proximate constraints such as internal
gestation and lactation, produces the typical mammalian
pattern of polygynous breeding, characterized by high
male investment in mating effort and high female
investment in parental effort (Trivers, 1972; Clutton-
Brock & Vincent, 1991). Extension of this paradigm to

  

Source: Archetti, Marco - Department of Organismic and Evolutionary Biology, Harvard University

 

Collections: Biology and Medicine