10.5061/DRYAD.1HS12NG
Bose, Aneesh P. H.
University of Graz
Zimmermann, Holger
University of Graz
Henshaw, Jonathan M.
University of Graz
Fritzsche, Karoline
University of Graz
Sefc, Kristina M.
University of Graz
Data from: Brood-tending males in a biparental fish suffer high paternity
losses but rarely cuckold
Dryad
dataset
2018
Social monogamy
Alternative Reproductive Tactics
Microsatellite genotyping
Variabilichromis moorii
Holocene
2018-08-28T13:34:04Z
2018-08-28T13:34:04Z
en
https://doi.org/10.1111/mec.14857
472382 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Extra-pair paternity within socially monogamous mating systems is
well-studied in birds and mammals but rather neglected in other animal
taxa. In fishes, social monogamy has evolved several times but few studies
have investigated the extent to which pair-bonded male fish lose
fertilizations to cuckolders and gain extra-pair fertilizations
themselves. We address this gap and present genetic paternity data
collected from a wild population of Variabilichromis moorii, a socially
monogamous African cichlid with biparental care of offspring. We show that
brood-tending, pair-bonded males suffer exceptionally high paternity
losses, siring only 63% of the offspring produced by their female partners
on average. The number of cuckolders per brood ranged up to nine and yet,
surprisingly, brood-tending males in the population were rarely the
culprits. Brood-tending males sired very few extra-pair offspring, despite
breeding in close proximity to one another. While unpaired males were
largely responsible for the cuckoldry, pair-bonded males still enjoyed
higher fertilization success than individual unpaired males. We discuss
these results in the context of ecological and phenotypic constraints on
cuckoldry and the fitness payoffs of alternative male tactics. Our study
provides new insights into how pair-bonded males handle the trade-off
between securing within-pair and extra-pair reproduction.
Microsatellite genotypes of adults and broods sampled in April 2016The
first Excel sheet contains status, ID, sex, nest and microsatellite
alleles of adults; followed by fry genotypes (one nest per
sheet).DRYAD_genotypes_April2016.xlsxMicrosatellite genotypes of adults
and broods sampled in October 2015The first Excel sheet contains status,
ID, sex, nest and microsatellite alleles of adults; followed by fry
genotypes (one nest per
sheet).DRYAD_genotypes_October2015.xlsxGonadosomatic indexStatus, body
size, body and testes weight of unpaired and paired
males.DRYAD_GSI_data.csvReproductive success of pair-bonded and cuckolders
malesFor pair-bonded males: body sizes of male and female, body size of
fry, brood size, numbers of extra-pair sires and dams, numbers of own and
foreign offspring in nest. For cuckolder males: body size of fry, number
of offspring.DRYAD_RS_data.csv
Africa
Zambia
Lake Tanganyika