Local male breeding density affects extra-pair paternity in a south temperate population of grass wrens Cistothorus platensisRamiro Arrieta, Leonardo Campagna, Bettina Mahler, Irby Lovette & Paulo Llambias
Demographic factors can affect the frequency of extra-pair paternity (EPP) in birds, as the distribution and availability of potential mates in both space and time influence the rate of encounters between females and males. Over three breeding seasons, we intensively studied the breeding system of a south temperate population of grass wrens Cistothorus platensis by genotyping 73 broods (319 nestlings) and estimating EPP rates for those broods. Using five different radii (80, 160, 240, 320,...
1 citation reported since publication in 2021.
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