Journal
NATURWISSENSCHAFTEN
Volume 96, Issue 7, Pages 857-861Publisher
SPRINGER
DOI: 10.1007/s00114-009-0535-8
Keywords
Dinoponera quadriceps; Functional roles; Egg recognition
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Funding
- Fapesp
- CNPq
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The capacity to distinguish colony members from strangers is a key component in social life. In social insects, this extends to the brood and involves discrimination of queen eggs. Chemical substances communicate colony affiliation for both adults and brood; thus, in theory, all colony members should be able to recognize fellow nestmates. In this study, we investigate the ability of Dinoponera quadriceps workers to discriminate nestmate and non-nestmate eggs based on cuticular hydrocarbon composition. We analyzed whether cuticular hydrocarbons present on the eggs provide cues of discrimination. The results show that egg recognition in D. quadriceps is related to both age and the functional role of workers. Brood care workers were able to distinguish nestmate from non-nestmate eggs, while callow and forager workers were unable to do so.
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