Header

UZH-Logo

Maintenance Infos

Parental effects alter the adaptive value of an adult behavioural trait


Kilner, Rebecca M; Boncoraglio, Giuseppe; Henshaw, Jonathan M; Jarrett, Benjamin J M; De Gasperin, Ornela; Attisano, Alfredo; Kokko, Hanna (2015). Parental effects alter the adaptive value of an adult behavioural trait. eLife, 4:e07340.

Abstract

The parents’ phenotype, or the environment they create for their young, can have longlasting effects on their offspring, with profound evolutionary consequences. Yet, virtually no work has considered how such parental effects might change the adaptive value of behavioural traits expressed by offspring upon reaching adulthood. To address this problem, we combined experiments on burying beetles (Nicrophorus vespilloides) with theoretical modelling and focussed on one adult behavioural trait in particular: the supply of parental care. We manipulated the early-life environment and measured the fitness payoffs associated with the supply of parental care when larvae reached maturity. We found that (1) adults that received low levels of care as larvae were less successful at raising larger broods and suffered greater mortality as a result: they were low-quality parents. Furthermore, (2) high-quality males that raised offspring with low-quality females subsequently suffered greater mortality than brothers of equivalent quality, which reared larvae with higher quality females. Our analyses identify three general ways in which parental effects can change the adaptive value of an adult behavioural trait: by influencing the associated fitness benefits and costs; by consequently changing the evolutionary outcome of social interactions; and by modifying the evolutionarily stable expression of behavioural traits that are themselves parental effects.

Abstract

The parents’ phenotype, or the environment they create for their young, can have longlasting effects on their offspring, with profound evolutionary consequences. Yet, virtually no work has considered how such parental effects might change the adaptive value of behavioural traits expressed by offspring upon reaching adulthood. To address this problem, we combined experiments on burying beetles (Nicrophorus vespilloides) with theoretical modelling and focussed on one adult behavioural trait in particular: the supply of parental care. We manipulated the early-life environment and measured the fitness payoffs associated with the supply of parental care when larvae reached maturity. We found that (1) adults that received low levels of care as larvae were less successful at raising larger broods and suffered greater mortality as a result: they were low-quality parents. Furthermore, (2) high-quality males that raised offspring with low-quality females subsequently suffered greater mortality than brothers of equivalent quality, which reared larvae with higher quality females. Our analyses identify three general ways in which parental effects can change the adaptive value of an adult behavioural trait: by influencing the associated fitness benefits and costs; by consequently changing the evolutionary outcome of social interactions; and by modifying the evolutionarily stable expression of behavioural traits that are themselves parental effects.

Statistics

Citations

9 citations in Web of Science®
7 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

18 downloads since deposited on 09 Dec 2015
10 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:2015
Deposited On:09 Dec 2015 16:37
Last Modified:22 Dec 2017 02:16
Publisher:eLife Sciences Publications Ltd.
ISSN:2050-084X
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.7554/eLife.07340.001
Official URL:http://elifesciences.org/content/4/e07340

Download

Download PDF  'Parental effects alter the adaptive value of an adult behavioural trait'.
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher