The evolutionary demise of a social interaction: experimentally induced loss of traits involved in the supply and demand of care.

Autor:	Bladon EK; Department of Zoology, University of Cambridge, Cambridge, United Kingdom., Pascoal S; Department of Zoology, University of Cambridge, Cambridge, United Kingdom.; Department of Haematology, University of Cambridge, Cambridge, United Kingdom., Bird N; Department of Zoology, University of Cambridge, Cambridge, United Kingdom.; Department of Genetics, Evolution and Environment, University College London, London, United Kingdom., Mashoodh R; Department of Zoology, University of Cambridge, Cambridge, United Kingdom.; Department of Genetics, Evolution and Environment, University College London, London, United Kingdom., Kilner RM; Department of Zoology, University of Cambridge, Cambridge, United Kingdom.
Jazyk:	angličtina
Zdroj:	Evolution letters [Evol Lett] 2023 May 02; Vol. 7 (3), pp. 168-175. Date of Electronic Publication: 2023 May 02 (Print Publication: 2023).
DOI:	10.1093/evlett/qrad016
Abstrakt:	Phenotypic plasticity enables animals to adjust their behavior flexibly to their social environment-sometimes through the expression of adaptive traits that have not been exhibited for several generations. We investigated how long social adaptations can usefully persist when they are not routinely expressed, by using experimental evolution to document the loss of social traits associated with the supply and demand of parental care. We allowed populations of burying beetles Nicrophorus vespilloides to evolve in two different social environments for 48 generations in the lab. In "Full Care" populations, traits associated with the supply and demand of parental care were expressed at every generation, whereas in "No Care" populations we prevented expression of these traits experimentally. We then revived trait expression in the No Care populations at generations 24, 43, and 48 by allowing parents to supply post-hatching care and compared these social traits with those expressed by the Full Care populations. We found that offspring demands for care and male provision of care in the No Care populations were lost sooner than female provision of care. We suggest that this reflects differences in the strength of selection for the expression of alternative traits in offspring, males and females, which can enhance fitness when post-hatching care is disrupted. Competing Interests: The authors declare no conflict of interest. (© The Author(s) 2023. Published by Oxford University Press on behalf of The Society for the Study of Evolution (SSE) and European Society for Evolutionary Biology (ESEN).)
Databáze:	MEDLINE
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