Differences in behavioural traits among native and introduced colonies of an invasive ant

Authors
Blight, Olivier; Josens, Roxana Beatriz; Bertelsmeier, Cleo; Abril, Silvia; Boulay, Raphael; Cerdá, Xim
Publication Year
2017
Language
English
Format
article
Status
Published version
Description
Identifying the factors that promote the success of biological invasions is a key pursuit in ecology. To date, the link between animal personality and invasiveness has rarely been studied. Here, we examined in the laboratory how Argentine ant populations from the species’ native and introduced ranges differed in a suite of behaviours related to species interactions and the use of space. We found correlations among specific behavioural traits that defined an explorative-aggressive syndrome. The Main “European” supercolony (introduced range) more readily explored novel environments, displayed more aggression, detected food resources more quickly, and occupied more space than the Catalonian supercolony (introduced range) and two other Argentine supercolonies (native range). The two native supercolonies also differed in their personalities; one harbouring the less invasive personality, while the other is intermediate between the two introduced supercolonies. Therefore, instead of a binary pattern, Argentine ant supercolonies display a behavioural continuum that is independent on their geographic origin (native/introduced ranges). Our results also suggest that variability in personality traits is correlated to differences in the ecological success of Argentine ant colonies. Differences in group personalities may facilitate the persistence and invasion of animals under novel selective pressures by promoting adaptive behaviours. We stress that the concept of animal personality should be taken into account when elucidating the mechanisms of invasiveness.
Fil: Blight, Olivier. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Josens, Roxana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Bertelsmeier, Cleo. Universite de Lausanne; Suiza
Fil: Abril, Silvia. Universidad de Girona; España
Fil: Boulay, Raphael. Universite de Tours; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Cerdá, Xim. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Subject
ANIMAL PERSONALITY
BEHAVIOURAL SYNDROME
INVASIVE ANT
SUPERCOLONY
Otras Ciencias Biológicas
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/64426