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  • Vega-Trejo, ReginaStockholms universitet,Avdelningen för etologi,University of Oxford, UK (author)

Sex-specific inbreeding depression : A meta-analysis

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-01-21
  • Wiley,2022
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:su-202032
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-202032URI
  • https://doi.org/10.1111/ele.13961DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:for swepub-publicationtype

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  • Inbreeding depression, the reduced fitness of the offspring of related individuals, can affect males and females differently. Although a comprehensive theoretical framework describing the causes of sex-specific inbreeding depression is lacking, empirical evidence suggests that often one sex tends to be more vulnerable than the other. However, the generality, direction, and degree of sex-specific difference in inbreeding depression remains enigmatic as studies on this topic have reported conflicting results. Here, we conduct a meta-analysis to test for sex-specific differences in the magnitude of inbreeding depression. We synthetised 321 effect sizes of experimental studies across 47 species and found a small difference in inbreeding depression between the sexes: females suffered slightly higher inbreeding depression than males. Furthermore, a higher inbreeding coefficient was correlated with higher inbreeding depression. However, there was a large amount of heterogeneity that remained unexplained, even when considering different factors that could affect inbreeding between the sexes, such as sexual size dimorphism, heterogamety, the type of trait measured and whether animals were tested in a stressful environment. As such, we highlight the need to further explore inbreeding depression across different species to determine the occurrence and causes of sex differences to increase our understanding of the evolutionary consequences of sex-specific inbreeding depression.

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  • de Boer, Raïssa A.Stockholms universitet,Avdelningen för etologi(Swepub:su)rade7852 (author)
  • Fitzpatrick, JohnStockholms universitet,Avdelningen för etologi(Swepub:su)jfrit (author)
  • Kotrschal, AlexanderStockholms universitet,Avdelningen för etologi,Wageningen University & Research, The Netherlands(Swepub:su)akotr (author)
  • Stockholms universitetAvdelningen för etologi (creator_code:org_t)

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  • In:Ecology Letters: Wiley25:4, s. 1009-10261461-023X1461-0248

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