Titre
Social isolation causers mortality by disrupting energy homeostrasis in ants
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Koto, A.
Auteure/Auteur
Mersch, D.
Auteure/Auteur
Hollis, B.
Auteure/Auteur
Keller, L.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1432-0762
Statut éditorial
Publié
Date de publication
2015
Volume
69
Numéro
4
Première page
583
Dernière page/numéro d’article
591
Langue
anglais
Résumé
Social deprivation can have negative effects on the lives of social animals, including humans, yet little is known about the mechanisms by which social withdrawal affects animal health. Here we show that in the carpenter ant Camponotus fellah, socially isolated workers have a greatly reduced life span relative to ants kept in groups of ten individuals. By using a new tracking system, we found that social isolation resulted in important behavioral changes and greatly increased locomotor activity. The higher activity of single ants and their increased propensity to leave the nest to move along the walls suggested that the increased mortality of isolated ants might stem from an imbalance of energy income and expenditure. This view was supported by the finding that while isolated ants ingested the same amount of food as grouped ants, they retained food in the crop, hence preventing its use as an energy source. Moreover, the difference in life span between single and grouped individuals vanished when ants were not fed. This study thus underlines the role of social interactions as key regulators of energy balance, which ultimately affects aging and health in a highly social organism.
PID Serval
serval:BIB_0BD971CCC151
Date de création
2015-01-07T16:47:08.000Z
Date de création dans IRIS
2025-05-20T20:02:32Z
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Nom
BIB_0BD971CCC151.P001.pdf
Version du manuscrit
preprint
Taille
1.7 MB
Format
Adobe PDF
PID Serval
serval:BIB_0BD971CCC151.P001
URN
urn:nbn:ch:serval-BIB_0BD971CCC1514
Somme de contrôle
(MD5):89048f833b54095cf428ab6ea968ed63