期刊
JOURNAL OF EXPERIMENTAL BIOLOGY
卷 212, 期 24, 页码 4084-4090出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.032912
关键词
Lycaenidae butterfly; Myrmica ant; Maculinea; Phengaris; acoustic mimicry; stridulation; cuckoo; predatory parasite
类别
资金
- Italian Ministry of the Environment
- Biodiversa project CLIMIT (CLimate change impacts on Insects and their MITigation)
- Natural Environment Research Council [CEH010021] Funding Source: researchfish
Rapid, effective communication between colony members is a key attribute that enables ants to live in dominant, fiercely protected societies. Their signals, however, may be mimicked by other insects that coexist as commensals with ants or interact with them as mutualists or social parasites. We consider the role of acoustics in ant communication and its exploitation by social parasites. Social parasitism has been studied mainly in the butterfly genus Maculinea, the final instar larvae of which are host-specific parasites of Myrmica ants, preying either on ant grubs (predatory Maculinea) or being fed by trophallaxis (cuckoo Maculinea). We found similar significant differences between the stridulations of model queen and worker ant castes in both Myrmica sabuleti and Myrmica scabrinodis to that previously reported for Myrmica schencki. However, the sounds made by queens of all three Myrmica species were indistinguishable, and among workers, stridulations did not differ significantly in two of three species-pairs tested. Sounds recorded from the predatory caterpillars and pupae of Maculinea arion had similar or closer patterns to the acoustics of their host Myrmica sabuleti than those previously reported for the cuckoo Maculinea rebeli and its host Myrmica schencki, even though Maculinea rebeli caterpillars live more intimately with their host. We conclude that chemical mimicry enables Maculinea larvae to be accepted as colony members by worker ants, but that caterpillars and pupae of both predatory and cuckoo butterflies employ acoustical mimicry of queen ant calls to elevate their status towards the highest attainable position within their host's social hierarchy.
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