Wax on, wax off: nest soil facilitates indirect transfer of recognition cues between ant nestmates

Bos, Nick, Grinsted, Lena and Holman, Luke (2011) Wax on, wax off: nest soil facilitates indirect transfer of recognition cues between ant nestmates. PLoS ONE, 6 (4). e19435. ISSN 1932-6203

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Abstract

Social animals use recognition cues to discriminate between group members and non-members. These recognition cues may be conceptualized as a label, which is compared to a neural representation of acceptable cue combinations termed the template. In ants and other social insects, the label consists of a waxy layer of colony-specific hydrocarbons on the body surface. Genetic and environmental differences between colony members may confound recognition and social cohesion, so many species perform behaviors that homogenize the odor label, such as mouth-to-mouth feeding and allogrooming. Here, we test for another mechanism of cue exchange: indirect transfer of cuticular hydrocarbons via the nest material. Using a combination of chemical analysis and behavioral experiments with Camponotus aethiops ants, we show that nest soil indirectly transfers hydrocarbons between ants and affects recognition behavior. We also found evidence that olfactory cues on the nest soil influence nestmate recognition, but this effect was not observed in all colonies. These results demonstrate that cuticular hydrocarbons deposited on the nest soil are important in creating uniformity in the odor label and may also contribute to the template.

Item Type: Article
Schools and Departments: School of Life Sciences > Evolution, Behaviour and Environment
Subjects: Q Science > QH Natural history > QH0301 Biology > QH0540 Ecology
Q Science > QL Zoology > QL0750 Animal behaviour
Depositing User: Lena Grinsted
Date Deposited: 11 Aug 2014 14:49
Last Modified: 07 Mar 2017 10:18
URI: http://sro.sussex.ac.uk/id/eprint/49546

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