Reproductive costs in terrestrial male vertebrates: insights from bird studies

Proceedings. Biological Sciences
Josefa BleuBernt-Erik Sæther

Abstract

Reproduction requires resources that cannot be allocated to other functions resulting in direct reproductive costs (i.e. trade-offs between current reproduction and subsequent survival/reproduction). In wild vertebrates, direct reproductive costs have been widely described in females, but their occurrence in males remains to be explored. To fill this gap, we gathered 53 studies on 48 species testing direct reproductive costs in male vertebrates. We found a trade-off between current reproduction and subsequent performances in 29% of the species and in every clade. As 73% of the studied species are birds, we focused on that clade to investigate whether such trade-offs are associated with (i) levels of paternal care, (ii) polygyny or (iii) pace of life. More precisely for this third question, it is expected that fast species (i.e. short lifespan, early maturity, high fecundity) pay a cost in terms of survival, whereas slow species (with opposite characteristics) do so in terms of fecundity. Our findings tend to support this hypothesis. Finally, we pointed out the potential confounding effects that should be accounted for when investigating reproductive costs in males and strongly encourage the investigation of such costs in more c...Continue Reading

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Citations

Jul 6, 2018·The Journal of Animal Ecology·Megan MurgatroydArjun Amar
Jan 1, 2019·Evolution; International Journal of Organic Evolution·Rolando Rodríguez-MuñozTom Tregenza
Aug 3, 2018·Proceedings. Biological Sciences·Irja Ida RatikainenJonathan Wright
Mar 27, 2020·Ecology and Evolution·Mathieu DouhardChristophe Bonenfant
Aug 28, 2020·Frontiers in Physiology·Clancy A ShortDaniel A Hahn
Jan 2, 2019·Ecology and Evolution·Svenja B KroegerJulien G A Martin
Apr 12, 2019·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Andrea S GrunstElaine M Tuttle
May 13, 2020·Trends in Ecology & Evolution·Christoffer H HildeChristophe Pélabon
Mar 17, 2021·The Journal of Animal Ecology·Lucyna HalupkaKonrad Halupka
Apr 30, 2021·Journal of Evolutionary Biology·Morgane TidièreMathieu Douhard

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