Factors influencing infant sex.

<p>Factors influencing infant sex.</p

Biomass influences maternal condition at conception.

<p>Maternal condition is scaled from 0 (best) to (5) worst, so low values represent females in relatively good condition.</p

Maternal age is associated with maternal condition at conception.

<p>Maternal condition is scaled from 0 (best) to (5) worst, so low values represent females in relatively good condition.</p

Maternal condition at conception influences time to resumption of cycling after the birth of (a) nonsurviving and (b) surviving infants.

<p>Maternal condition at conception influences time to resumption of cycling after the birth of (a) nonsurviving and (b) surviving infants.</p

Sources of variation in condition at conception.

<p>Sources of variation in condition at conception.</p

Female dominance rank influences time to resumption of cycling after birth of (a) surviving and (b) nonsurviving infants.

<p>High rank  =  black bars, middle rank  =  grey bars, low rank  =  white bars.</p

Sources of variation in time to resumption of cycling.

<p>Sources of variation in time to resumption of cycling.</p

Effects of grunts on likelihood of subsequent interactions.

<p>Effects of grunts on likelihood of subsequent interactions.</p

The proportion of approaches that were accompanied by grunts.

<p>Females grunted as they approached other females 28% of the time overall.</p

Factors that influenced whether females grunted after they approach another female.

<p>Factors that influenced whether females grunted after they approach another female.</p