PCG duration model by females.

GLMMs evaluating if the duration of female PCG was affected by the presence of copulation calls and type of copulation (ejaculatory vs non-ejaculatory).</p

Definition of behavioral variables.

Definition of behavioral variables.</p

Female copulation call interaction model.

Binary GLMM evaluating if the likelihood of uttering a copulation call is affected by the male and female GHS and the type of copulation. Estimates, standard errors (SE), z-values, and 2.5% and 97.5% confidence intervals (CI) are shown for fixed effects. Intercept with a reference category for ulcerated individuals and ejaculatory events. (DOCX)</p

Presence of post-copulatory grooming interaction model.

Binomial GLMM evaluating if the likelihood of PCG is affected by the male and female GHS, presence of copulation calls and type of copulation. Estimates, standard errors (SE), z-values, and 2.5% and 97.5% confidence intervals (CI) are shown for fixed effects. Intercept with reference category for ulcerated individuals, presence of copulation calls and ejaculatory events. (DOCX)</p

Female post-copulatory darting model.

Binomial GLMM evaluating if the likelihood of female darting was influenced by the male and female GHS, presence of copulation calls, and type of copulation (ejaculatory vs non-ejaculatory).</p

PCG duration interaction model by females.

GLMMs evaluating if the duration of female PCG is affected by the by the male and female GHS, presence of copulation calls and type of copulation. Estimates, standard errors (SE), z-values, and 2.5% and 97.5% confidence intervals (CI) are shown for fixed effects. Intercept with reference category for ulcerated individuals, presence of copulation calls and ejaculatory events. (DOCX)</p

Genital skin ulcerations caused by <i>Treponema pallidum</i> subsp. pertenue.

Olive baboon adult female (left) and adult male (right) at Lake Manyara National Park, Tanzania.</p

Frequency of post-copulatory grooming (PCG) initiation in relation to copulation type (number of cases in parentheses).

Frequency of post-copulatory grooming (PCG) initiation in relation to copulation type (number of cases in parentheses).</p

Post-copulatory grooming (PCG)-presence model.

Binomial GLMM evaluating if the likelihood of PCG was affected by the male and female GHS, presence of copulation calls, and type of copulation (ejaculatory vs. non-ejaculatory).</p

Frequency of copulation per female per hour by frequency of PCB (post-copulatory behavior) per female per copulation (blue circles represent individual females; r = -0.10; dashed lines = 95% confidence interval).

Frequency of copulation per female per hour by frequency of PCB (post-copulatory behavior) per female per copulation (blue circles represent individual females; r = -0.10; dashed lines = 95% confidence interval).</p