The expression and impact of antifungal grooming in ants.

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Ressource 1Télécharger: BIB_708264A6CF88.P001.pdf (339.97 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_708264A6CF88
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The expression and impact of antifungal grooming in ants.
Périodique
Journal of Evolutionary Biology
Auteur(s)
Reber A., Purcell J., Buechel S.D., Buri P., Chapuisat M.
ISSN
1420-9101 (Electronic)
ISSN-L
1010-061X
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
24
Numéro
5
Pages
954-964
Langue
anglais
Résumé
Parasites can cause extensive damage to animal societies in which many related individuals frequently interact. In response, social animals have evolved diverse individual and collective defences. Here, we measured the expression and efficiency of self-grooming and allo-grooming when workers of the ant Formica selysi were contaminated with spores of the fungal entomopathogen Metarhizium anisopliae. The amount of self-grooming increased in the presence of fungal spores, which shows that the ants are able to detect the risk of infection. In contrast, the amount of allo-grooming did not depend on fungal contamination. Workers groomed all nestmate workers that were re-introduced into their groups. The amount of allo-grooming towards noncontaminated individuals was higher when the group had been previously exposed to the pathogen. Allo-grooming decreased the number of fungal spores on the surface of contaminated workers, but did not prevent infection in the conditions tested (high dose of spores and late allo-grooming). The rate of disease transmission to groomers and other nestmates was extremely low. The systematic allo-grooming of all individuals returning to the colony, be they contaminated or not, is probably a simple but robust prophylactic defence preventing the spread of fungal diseases in insect societies.
Mots-clé
antiparasite behaviour, entomopathogenic fungus, grooming, social immunity, social insects
Pubmed
Web of science
Open Access
Oui
Création de la notice
20/12/2010 17:40
Dernière modification de la notice
20/08/2019 14:29
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