Vol. 59, 2020
Individual Heterozygosity Influences Arrival Times and Mating Success of Male Red-Breasted Flycatchers Ficedula parva
Cezary Mitrus1,*, Joanna Mitrus2, and Robert Rutkowski3
of Vertebrate Ecology and Paleontology, Institute of Biology, Wrocław
University of Environmental and Life Sciences, Chełmońskiego 38c,
51-631 Wrocław, Poland. *Correspondence: Tel: +48692186888. E-mail:
Received 13 June 2019 / Accepted 22 January 2020
We examined the relationship between individual heterozygosity of male Red-breasted Flycatchers Ficedula parva
(a small long-distance migratory, socially monogamous bird species) and
their mating success, arrival time and age. Using eight polymorphic
microsatellite loci, we found that male heterozygosity is related to
both mating success and arrival time but not to age. Mated and earlier
arriving males had higher heterozygosity than later arrivals and
bachelors, but we did not find a relationship between age and
individual heterozygosity of males. To our knowledge, this is the first
study to provide evidence about the relationship between individual
genetic diversity and arrival time, thus arrival time could be used as
a signal of individual heterozygosity and quality.
Key words: Multi-locus heterozygosity, Mate choice, Arrival time, Birds.
Mitrus C, Mitrus J, Rutkowski R. 2020. Individual heterozygosity
influences arrival times and mating success of male red-breasted
flycatchers Ficedula parva. Zool Stud 59:0k. doi:-.