Title |
Tandem carrying, a new foraging strategy in ants: description, function, and adaptive significance relative to other described foraging strategies
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Published in |
The Science of Nature, June 2011
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DOI | 10.1007/s00114-011-0814-z |
Pubmed ID | |
Authors |
Benoit Guénard, Jules Silverman |
Abstract |
An important aspect of social insect biology lies in the expression of collective foraging strategies developed to exploit food. In ants, four main types of foraging strategies are typically recognized based on the intensity of recruitment and the importance of chemical communication. Here, we describe a new type of foraging strategy, "tandem carrying", which is also one of the most simple recruitment strategies, observed in the Ponerinae species Pachycondyla chinensis. Within this strategy, workers are directly carried individually and then released on the food resource by a successful scout. We demonstrate that this recruitment is context dependent and based on the type of food discovered and can be quickly adjusted as food quality changes. We did not detect trail marking by tandem-carrying workers. We conclude by discussing the importance of tandem carrying in an evolutionary context relative to other modes of recruitment in foraging and nest emigration. |
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