Estimating mechanisms and equilibria for offspring begging and parental provisioning

Kölliker, Mathias

doi:10.1098/rsbl.2003.0032

Cited by 17 publications

(36 citation statements)

References 16 publications

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“…Agrawal et al's (2001) argument is based on the results of a model of stabilizing selection on the interacting phenotypes . Selection is often more complex than pure stabilizing selection when there are parent-offspring interactions (Kölliker 2003). Our results support a pattern of complex selection in N. vespilloides that is often directional and sometimes includes nonlinear components.…”

Section: Integration Of Selection and Inheritance: The Adaptive Natursupporting

confidence: 72%

Selection, Inheritance, and the Evolution of Parent‐Offspring Interactions

Lock

Smiseth

Moore

2004

The American Naturalist

146

226

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Very few studies have examined parent-offspring interactions from a quantitative genetic perspective. We used a crossfostering design and measured genetic correlations and components of social selection arising from two parental and two offspring behaviors in the burying beetle Nicrophorus vespilloides. Genetic correlations were assessed by examining behavior of relatives independent of common social influences. We found positive genetic correlations between all pairs of behaviors, including between parent and offspring behaviors. Patterns of selection were assessed by standardized performance and selection gradients. Parental provisioning had positive effects on offspring performance and fitness, while remaining near the larvae without feeding them had negative effects. Begging had positive effects on offspring performance and fitness, while increased competition among siblings had negative effects. Coadaptations between parenting and offspring behavior appear to be maintained by genetic correlations and functional trade-offs; parents that feed their offspring more also spend more time in the area where they can forage for themselves. Families with high levels of begging have high levels of sibling competition. Integrating information from genetics and selection thus provides a general explanation for why variation persists in seemingly beneficial traits expressed in parent-offspring interactions and illustrates why it is important to measure functionally related suites of behaviors.

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Section: Integration Of Selection and Inheritance: The Adaptive Natursupporting

confidence: 72%

Selection, Inheritance, and the Evolution of Parent‐Offspring Interactions

Lock

Smiseth

Moore

2004

The American Naturalist

146

226

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“…Quantitative genetics models have generally ignored the possibility that offspring may actively influence parental contributions to their growth and survival, for example, through engaging in conspicuous begging displays (Kilner & Johnstone 1997;Wright & Leonard 2002). However, the recent models suggest that offspring begging can be incorporated into such models by treating it as an offspring effect that influences parental provisioning, thus generating a more realistic and complex feedback loop between parental and offspring behaviours (Kö lliker 2003;Kö lliker et al 2005).…”

Section: Behavioural Ecology Versus Quantitative Geneticsmentioning

confidence: 99%

Parent–offspring conflict and co-adaptation: behavioural ecology meets quantitative genetics

2008

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The evolution of the complex and dynamic behavioural interactions between caring parents and their dependent offspring is a major area of research in behavioural ecology and quantitative genetics. While behavioural ecologists examine the evolution of interactions between parents and offspring in the light of parent-offspring conflict and its resolution, quantitative geneticists explore the evolution of such interactions in the light of parent-offspring co-adaptation due to combined effects of parental and offspring behaviours on fitness. To date, there is little interaction or integration between these two fields. Here, we first review the merits and limitations of each of these two approaches and show that they provide important complementary insights into the evolution of strategies for offspring begging and parental resource provisioning. We then outline how central ideas from behavioural ecology and quantitative genetics can be combined within a framework based on the concept of behavioural reaction norms, which provides a common basis for behavioural ecologists and quantitative geneticists to study the evolution of parent-offspring interactions. Finally, we discuss how the behavioural reaction norm approach can be used to advance our understanding of parent-offspring conflict by combining information about the genetic basis of traits from quantitative genetics with key insights regarding the adaptive function and dynamic nature of parental and offspring behaviours from behavioural ecology.

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“…On the basis of this model, Agrawal et al (2001) predicted and showed in the burrower bug (Sehirus cinctus) a negative genetic correlation between parental provisioning and offspring elicitation. However, other empirical studies estimated the genetic correlation and found that there may be a positive, negative, or even zero correlation (Kölliker et al 2000;Kölliker and Richner 2001;Hunt and Simmons 2002;Rauter and Moore 2002;Hager and Johnstone 2003;Curley et al 2004;Lock et al 2004;Maestripieri 2004;Kölliker 2005). Thus, the ability to generalize about genetic architecture underlying parent-offspring interactions remains uncertain.…”

mentioning

confidence: 99%

“…In the example of parent-offspring interactions, parents provide to offspring both genes and the environment that influences trait expression (e.g., the level of solicitation), but the parental environment may also vary as a result of heritable differences among parents (Cheverud and Moore 1994). Similarly, offspring represent an environment that may alter parental trait expression (e.g., the level of provisioning) through behaviors such as solicitation (Kölliker 2005). Purely phenotypic approaches fail to capture the genetic complexity that can arise in the evolution of social interactions.…”

mentioning

confidence: 99%

“…A relatively unstudied aspect of the resolution models concerns consequences of a state of resolved conflict for the genetic structure of traits involved in family interac-tions (Lynch 1987;Cheverud and Moore 1994;Mock and Parker 1997;Kölliker and Richner 2001;Kölliker 2005). Cheverud (1984), Lynch (1987), Kirkpatrick and Lande (1989), and Cheverud and Moore (1994) were the first to use a quantitative genetic approach to study potential consequences of the genetic architecture of such traits on their evolution.…”

mentioning

confidence: 99%

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The Coadaptation of Parental Supply and Offspring Demand

Kölliker

Brodie

Moore

2005

The American Naturalist

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122

136

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The evolution of parent-offspring interactions for the provisioning of care is usually explained as the phenotypic outcome of resolved conflicting selection pressures. However, parental care and offspring solicitation are expected to have complex patterns of inheritance. Here we present a quantitative genetic model of parentoffspring interactions that allows us to investigate the evolutionary maintenance of a state of resolved conflict. We show that offspring solicitation and parental provisioning are expected to become genetically correlated through coadaptation and that their genetic architecture is dictated by an interaction between patterns of selection and the proximate mechanisms regulating supply and demand. When selection is predominately on offspring solicitation, our model suggests that the genetic correlations between provisioning and solicitation are usually positive if provisioning reduces solicitation. Conversely, when selection is predominately on parental provisioning, the correlations are mostly negative as long as parents show a positive response to offspring demand. Empirical estimates of the genetic architecture of traits involved in family interactions fit these predictions. Our model demonstrates how the evolutionary maintenance of parent-offspring interactions can result in variable patterns of coadaptation, and it provides an explanation for the diversity of family interactions within and among species.

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Estimating mechanisms and equilibria for offspring begging and parental provisioning

Cited by 17 publications

References 16 publications

Selection, Inheritance, and the Evolution of Parent‐Offspring Interactions

Selection, Inheritance, and the Evolution of Parent‐Offspring Interactions

Parent–offspring conflict and co-adaptation: behavioural ecology meets quantitative genetics

The Coadaptation of Parental Supply and Offspring Demand

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