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Differentiated anti-predation responses in a superorganism

O'Shea-Wheller, Thomas A.; Sendova-Franks, Ana B.; Franks, Nigel R.

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Authors

Thomas A. O'Shea-Wheller

Ana Sendova-Franks Ana.Sendova-Franks@uwe.ac.uk
Associate Professor in Biometry & Animal Behaviour

Nigel R. Franks



Abstract

© 2015 O'Shea-Wheller et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Insect societies are complex systems, displaying emergent properties much greater than the sum of their individual parts. As such, the concept of these societies as single 'superorganisms' is widely applied to describe their organisation and biology. Here, we test the applicability of this concept to the response of social insect colonies to predation during a vulnerable period of their life history. We used the model system of house-hunting behaviour in the ant Temnothorax albipennis.We show that removing individuals from directly within the nest causes an evacuation response, while removing ants at the periphery of scouting activity causes the colony to withdraw back into the nest. This suggests that colonies react differentially, but in a coordinated fashion, to these differing types of predation. Our findings lend support to the superorganism concept, as the whole society reacts much like a single organism would in response to attacks on different parts of its body. The implication of this is that a collective reaction to the location of worker loss within insect colonies is key to avoiding further harm, much in the same way that the nervous systems of individuals facilitate the avoidance of localised damage.

Journal Article Type Article
Publication Date Nov 1, 2015
Journal PLoS ONE
Electronic ISSN 1932-6203
Publisher Public Library of Science
Peer Reviewed Peer Reviewed
Volume 10
Issue 11
Pages e0141012
Institution Citation O'Shea-Wheller, T. A., O'Shea-Wheller, T., Sendova-Franks, A. B., & Franks, N. R. (2015). Differentiated anti-predation responses in a superorganism. PLoS ONE, 10(11), e0141012. https://doi.org/10.1371/journal.pone.0141012
DOI https://doi.org/10.1371/journal.pone.0141012
Keywords complex system, superorganism
Publisher URL http://dx.doi.org/10.1371/journal.pone.0141012

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