Parental care and mating systems - Parental care - Overall paterns of parental care

3 important questions on Parental care and mating systems - Parental care - Overall paterns of parental care

What is the operational sex ratio?

The ratio of potentially mating males to fertilizable females.

What is the potential reproductive rate?

The maximum number of independent offspring that each parent can produce per unit of time, becomes greater for males than for females. 

What is sex-role reversal?

Males provide almost all the paternal care and are selective in their choice of mate, and females compete for access to males. 

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