Article (Scientific journals)
Comparison of the Sex Pheromone Composition of Harmonia axyridis Originating from Native and Invaded Areas
Legrand, Pauline; Vanderplanck, Maryse; Verheggen, François
2019In Insects
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Keywords :
multicolored Asian lady beetle; invasive species; sexual communication
Abstract :
[en] The multicolored Asian lady beetle, Harmonia axyridis (Coleoptera: Coccinellidae), originates from South-East Asia and is now considered as an invasive species at a worldwide scale, with populations encountered in North and South America, Africa, and Europe. Several previous studies suggested that invasive populations display di erent behavioral and physiological traits, leading to a better fitness than native individuals. H. axyridis sex pheromone was identified recently, but only from individuals established in Europe. In this study, we compare the composition of the female sex pheromone of H. axyridis from two populations: (i) an invasive population in North America, and (ii) a native population in South-East China. We found the females originating from both populations to release in similar proportions the same five pheromonal compounds, namely -caryophyllene, -elemene, methyl-eugenol, -humulene, and -bulnesene. However, females from the North American strain release all five compounds in larger amount than the Chinese ones. Whether invasive individuals were selected during the process of invasion through their capacity to better call and find sexual partners remains to be confirmed.
Disciplines :
Entomology & pest control
Author, co-author :
Legrand, Pauline 
Vanderplanck, Maryse 
Verheggen, François  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Comparison of the Sex Pheromone Composition of Harmonia axyridis Originating from Native and Invaded Areas
Publication date :
2019
Journal title :
Insects
eISSN :
2075-4450
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Basel, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 642420 - BiodivERsA3 - Consolidating the European Research Area on biodiversity and ecosystem services
Funders :
BiodivERsA (Horizon 2020 ERA-NET COFUND scheme)
CE - Commission Européenne [BE]
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since 23 October 2019

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