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Influence of task switching costs on colony homeostasis

Por: Jeanson, Raphaël [autor/a].
Lachaud, Jean Paul [autor/a].
Tipo de material: Artículo
 en línea Artículo en línea Tema(s): Hormigas | Homeóstasis | Sociedades de insectos | Colonias de hormigasTema(s) en inglés: Ants | Homeostasis | Insect societies | Ant coloniesNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: The Science of Nature. volumen 102, número 36 (June 2015). --ISSN: 0028-1042Número de sistema: 6858Resumen:
Inglés

In social insects, division of labour allows colonies to optimise the allocation of workers across all available tasks to satisfy colony requirements. The maintenance of stable conditions within colonies (homeostasis) requires that some individuals move inside the nest to monitor colony needs and execute unattended tasks. We developed a simple theoretical model to explore how worker mobility inside the nest and task switching costs influence the maintenance of stable levels of task-associated stimuli. Our results indicate that worker mobility in large colonies generates important task switching costs and is detrimental to colony homeostasis. Our study suggests that the balance between benefits and costs associated with the mobility of workers patrolling inside the nest depends on colony size. We propose that several species of ants with diverse life-history traits should be appropriate to test the prediction that the proportion of mobile workers should vary during colony ontogeny.

Recurso en línea: http://link.springer.com/article/10.1007%2Fs00114-015-1287-2
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In social insects, division of labour allows colonies to optimise the allocation of workers across all available tasks to satisfy colony requirements. The maintenance of stable conditions within colonies (homeostasis) requires that some individuals move inside the nest to monitor colony needs and execute unattended tasks. We developed a simple theoretical model to explore how worker mobility inside the nest and task switching costs influence the maintenance of stable levels of task-associated stimuli. Our results indicate that worker mobility in large colonies generates important task switching costs and is detrimental to colony homeostasis. Our study suggests that the balance between benefits and costs associated with the mobility of workers patrolling inside the nest depends on colony size. We propose that several species of ants with diverse life-history traits should be appropriate to test the prediction that the proportion of mobile workers should vary during colony ontogeny. eng

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