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Linking the fine-scale social environment to mating decisions: a future direction for the study of extra-pair paternity
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Maldonado Chaparro, Adriana Alexandra
Montigli, Pierre?Olivier
Forstmeier, Wolfgang
Kempenaers, Bart
Farine, Damien R
Fecha
2018-03-18
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John Wiley & Sons
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Resumen
La variación en la paternidad extrapareja (EPP) entre individuos de la misma población podría resultar de una demografía estocástica o de diferencias individuales en las estrategias de apareamiento. Aunque el valor adaptativo de la EPP se ha estudiado ampliamente, se sabe mucho menos sobre las características del entorno social que impulsan los patrones observados de la EPP. Aquí, demostramos cómo los conceptos y las herramientas bien desarrolladas para el estudio del comportamiento social (como el análisis de redes sociales) pueden mejorar el estudio de las decisiones de apareamiento extra-parejas (centrándose en particular en los sistemas de apareamiento de las aves). Presentamos varias hipótesis que describen cómo las características del entorno social en el que están inmersos los individuos pueden influir en los niveles de EPP en una población socialmente monógama.
Abstract
Variation in extra?pair paternity (EPP) among individuals of the same population could result from stochastic demography or from individual differences in mating strategies. Although the adaptive value of EPP has been widely studied, much less is known about the characteristics of the social environment that drive the observed patterns of EPP. Here, we demonstrate how concepts and well?developed tools for the study of social behaviour (such as social network analysis) can enhance the study of extra?pair mating decisions (focussing in particular on avian mating systems). We present several hypotheses that describe how characteristics of the social environment in which individuals are embedded might influence the levels of EPP in a socially monogamous population. We use a multi?level social approach (Hinde, 1976) to achieve a detailed description of the social structure and social dynamics of individuals in a group. We propose that the pair?bond, the direct (local) social environment and the indirect (extended) social environment, can contribute in different ways to the variation observed in the patterns of EPP, at both the individual and the population level. A strength of this approach is that it integrates into the analysis (indirect) interactions with all potential mates in a population, thus extending the current framework to study extra?pair mating behaviour. We also encourage the application of social network methods such as temporal dynamic analysis to depict temporal changes in the patterns of interactions among individuals in a group, and to study how this affects mating behaviour. We argue that this new framework will contribute to a better understanding of the proximate mechanisms that drive variation in EPP within populations in socially monogamous species, and might ultimately provide insights into the evolution and maintenance of mating systems
Palabras clave
Composición fenotípica del grupo , Entorno social local , Sistemas de apareamiento , Especies monógamas , Análisis de redes sociales
Keywords
Phenotypic composition of the group , Local social environment , Mating systems , Monogamous species , Social network analysis
