Incestuous matings by the purple-crowned fairy wren Malurus coronatus result in severe fitness costs due to inbreeding depression (greater than 30% reduction in hatchability of eggs). Females paired with related males may undertake extra pair matings (see Promiscuity#Other animals for 90% frequency in avian species) that can reduce the negative effects of inbreeding. However, there are ecological and demographic constraints on extra pair matings. Nevertheless, 43% of broods produced by incestuously paired females contained extra pair young.
Incestuous matings by the purple - crowned fairy wren Malurus coronatus result in severe fitness costs due to inbreeding depression ( greater than 30 % reduction in hatchability of eggs ) . Females paired with related males may undertake extra pair matings ( see Promiscuity#Other animals for 90 % frequency in avian species ) that can reduce the negative effects of inbreeding . However , there are ecological and demographic constraints on extra pair matings . Nevertheless , 43 % of broods produced by incestuously paired females contained extra pair young .
What percentage of broods produced by incestuously paired females contained extra pair of young?
What percentage of broods produced by incestuously paired females contained extra pair of young ?
43%
43%