Chemical profile from the head of Vespa velutina and V. crabro

Vespa velutina and V. crabro are eusocial insects in which chemical communication is decisive for social interactions. V. velutina was accidentally introduced in 2004 in France and subsequently in northern Spain in 2010. It is an invasive species that severely affects the beekeeping sector. The horn...

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Bibliographic Details
Published in:Apidologie 2021, Vol.52 (3), p.548-560
Main Authors: Rodríguez-Flores, M. Shantal, Falcão, Soraia I., Escuredo, Olga, Seijo, M. Carmen, Vilas-Boas, Miguel
Format: Article
Language:English
Subjects:
Animal biology
Baits
Beekeeping
Biochemistry
Biochemistry, Molecular Biology
Biomedical and Life Sciences
Carbohydrates
Chemical communication
Chemical compounds
Ecological niches
Entomology
Epicuticle
Eusociality
Fatty acids
Insects
Introduced species
Invasive species
Invertebrate Zoology
Life Sciences
Original Article
Queens
Social factors
Social interactions
Vespa crabro
Vespa velutina
Workers (insect caste)
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Summary:Vespa velutina and V. crabro are eusocial insects in which chemical communication is decisive for social interactions. V. velutina was accidentally introduced in 2004 in France and subsequently in northern Spain in 2010. It is an invasive species that severely affects the beekeeping sector. The hornet autochthonous V. crabro with a similar ecological niche is captured in bait traps used to control V. velutina populations. Insect cuticle and head structures had an important role in chemical communication so that this research approaches for the first time chemical compounds extracted from the heads of V. velutina and V. crabro . Chemical compounds were profiled using GC/MS. The main compounds identified were carbohydrates, fatty acids, and hydrocarbons. The chemical profile of both species was compared and also an intrinsic differentiation was made between queens and workers in V. velutina . Chemometric techniques (PCA and LSD) were used to achieve this goal.
ISSN:0044-8435
1297-9678
DOI:10.1007/s13592-021-00842-0