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Flexible communication within bird families-The consequences of behavioral plasticity for parent-offspring coadaptation.

ABSTRACT: Offspring are selected to demand more resources than what is optimal for their parents to provide, which results in a complex and dynamic interplay during parental care. Parent-offspring communication often involves conspicuous begging by the offspring which triggers a parental response, typically the transfer of food. So begging and parental provisioning reciprocally influence each other and are therefore expected to coevolve. There is indeed empirical evidence for covariation of offspring begging and parental provisioning at the phenotypic level. However, whether this reflects genetic correlations of mean levels of behaviors or a covariation of the slopes of offspring demand and parental supply functions (= behavioral plasticity) is not known. The latter has gone rather unnoticed-despite the obvious dynamics of parent-offspring communication. In this study, we measured parental provisioning and begging behavior at two different hunger levels using canaries (Serinus canaria) as a model species. This enabled us to simultaneously study the plastic responses of the parents and the offspring to changes in offspring need. We first tested whether parent and offspring behaviors covary phenotypically. Then, using a covariance partitioning approach, we estimated whether the covariance predominantly occurred at a between-nest level (i.e., indicating a fixed strategy) or at a within-nest level (i.e., reflecting a flexible strategy). We found positive phenotypic covariation of offspring begging and parental provisioning, confirming previous evidence. Yet, this phenotypic covariation was mainly driven by a covariance at the within-nest level. That is parental and offspring behaviors covary because of a plastic behavioral coadjustment, indicating that behavioral plasticity could be a main driver of parent-offspring coadaptation.

SUBMITTER: Fresneau N

PROVIDER: S-EPMC6342095 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Flexible communication within bird families-The consequences of behavioral plasticity for parent-offspring coadaptation.

Fresneau Nolwenn N Müller Wendt W

Ecology and evolution 20181219 1

Offspring are selected to demand more resources than what is optimal for their parents to provide, which results in a complex and dynamic interplay during parental care. Parent-offspring communication often involves conspicuous begging by the offspring which triggers a parental response, typically the transfer of food. So begging and parental provisioning reciprocally influence each other and are therefore expected to coevolve. There is indeed empirical evidence for covariation of offspring begg ...[more]

PMID: 30680149

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Project description:Introduction Understanding parents’ and children’s mental health issues would help design population-specific intervention programs. The present study explored parents’ perceived stress and child emotions and behavior during the COVID-19 lockdown among Sri Lankan families. Methods A cross-sectional survey was conducted among Sri Lankan parents of children aged 11 to 17 years. Validated instruments (Perceived Stress Scale-PSS and Strengths and Difficulties Questionnaire-SDQ) evaluated parental stress, child emotions, and hyperactivity/inattention. Multiple linear regression assessed the predictors of mental health issues, including the interaction between age and gender. Results Three hundred fifty-five parents responded to the survey (mothers:76%). One-third of parents experienced difficulties with their children during the pandemic. Emotions and hyperactivity-inattention problems measured via the SDQ scale were high among 38% of children, while the perceived stress was high in 79.2% of parents. Overall, child emotions and hyperactivity-inattention increased with decreasing age, increasing parent stress, having middle-income compared to high-income, and having a family member/close relative tested positive for COVID-19. Hyperactivity-inattention (29.3%) was more than the emotional problems (22%) among children. The emotional problems were reported more with increasing parent stress, while child hyperactivity-inattention alone was reported more with decreasing age, middle-income compared to high-income families, and increasing parent stress. Also, the interaction effect of age and gender indicated that higher age was related to greater parent-reported hyperactivity-inattention problems in males. Conclusions The findings highlight how the COVID-19 crisis and social isolation have contributed to increased parental stress and child emotional and hyperactivity-inattention problems. In addition to cautioning the healthcare workers, socio-culturally appropriate preventive and supportive mental health programs may help deal with further waves of COVID-19 or any other adverse circumstances.

Dataset Information

Flexible communication within bird families-The consequences of behavioral plasticity for parent-offspring coadaptation.

Publications

Flexible communication within bird families-The consequences of behavioral plasticity for parent-offspring coadaptation.

Similar Datasets

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