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Unformatted text preview: but this increase be negated by by male is with the infant successful is with the infant and the how and the how successful other males’ infanticidal tendencies, which, other males’ infanticidal tendencies, which, defending males and females be. another nding males and females can be. As canby As aggregated, increase in a logistic fashion (solid line). j aggregated, increase in a logistic fashion (solid line). RS P(INFANTICIDALkj d (the FANTICIDALkj) depends on )pkjepends on pk (the The paternity probability is the the point that probability male k fathered The optimal optimal paternity probability is point that j ability male k fathered infant j) andinfant j) and j j maximizes Val , the expected genetic representation paternity is a zero-sum game, p may be maximizes Val , the expected genetic representation male rnity is a zero-sum game, pj may be in the infant times the probability the infant is not optimized at a value below one. While it is in the infant times the probability the infantshaded area mized at a possible that in some groupsis value below one. While it males could be killed (represented by the arrow). The is not killed (represented byarea arrow). The shaded area ible that in some groups males sum of be perceived represents the the of positive net ‘reproductive confused such that the could their represents theor the expected mean proportion of his genes used such paternities is greater than...
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- Winter '10