Not one odour but two: A new model for nestmate recognition.

Détails

Ressource 1Télécharger: BIB_6955DD9383B0.P001.pdf (377.59 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_6955DD9383B0
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Not one odour but two: A new model for nestmate recognition.
Périodique
Journal of Theoretical Biology
Auteur(s)
Newey P.
ISSN
1095-8541 (Electronic)
ISSN-L
0022-5193
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
270
Numéro
1
Pages
7-12
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
Recognition systems play a key role in a range of biological processes, including mate choice, immune defence and altruistic behaviour. Social insects provide an excellent model for studying recognition systems because workers need to discriminate between nestmates and non-nestmates, enabling them to direct altruistic behaviour towards closer kin and to repel potential invaders. However, the level of aggression directed towards conspecific intruders can vary enormously, even among workers within the same colony. This is usually attributed to differences in the aggression thresholds of individuals or to workers having different roles within the colony. Recent evidence from the weaver ant Oecophylla smaragdina suggests that this does not tell the whole story. Here I propose a new model for nestmate recognition based on a vector template derived from both the individual's innate odour and the shared colony odour. This model accounts for the recent findings concerning weaver ants, and also provides an alternative explanation for why the level of aggression expressed by a colony decreases as the diversity within the colony increases, even when odour is well-mixed. The model makes additional predictions that are easily tested, and represents a significant advance in our conceptualisation of recognition systems.
Mots-clé
Aggression/physiology, Algorithms, Animal Communication, Animals, Ants/physiology, Computer Simulation, Genetic Variation/physiology, Models, Biological, Odors/analysis
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/11/2010 7:26
Dernière modification de la notice
20/08/2019 14:24
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