Table 1.
MP frequency and presence/absence of polyandry in extant elasmobranch species.
Table 2.
AIC values for models of trait evolution fit to MP frequency data.
Table 3.
Output of phylogenetic linear models demonstrates the absence of any significant relationships between MP frequency and potential covariates.
Note that AIC values should not be used to compare directly between these models as they differ in sample size.
Fig 1.
Ancestral state reconstruction of MP frequency through elasmobranch phylogeny.
Red coloration represents genetic monogamy (low values of MP frequency), blue coloration represents polyandry (high MP frequency values) and green coloration represents intermediate MP frequency values.