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 is it called when there is greater than 30 percent reduction in hatchability of eggs?
What is it called when there is greater than 30 percent reduction in hatchability of eggs ?
inbreeding depression
inbreeding depression