Figure 3: Proportion of male care (
) and OSR in the synergy model.
) and OSR in the synergy model.From: Coevolution of parental investment and sexually selected traits drives sex-role divergence
(a) The proportion of male care and (c) the OSR increase with the ASR, when the latter is manipulated either by changing the maturation sex ratio MSR (r) or by simultaneously changing male mortality in either state (
). (b) The proportion of male care remains constant whereas (d) the OSR increases with the ASR, when the latter is manipulated by changing male mortality in time-in (
). Solid line: 
, 
; dashed: 
, 
; dotted: 
, 
. Default parameter values: k=n=M=r=1; 
; α=γ=0.1.
