Article (Scientific journals)
Electrophysiological and behavioural responses of Thanatophilus sinuatus F. (Coleoptera: Silphidae) to selected cadaveric volatile organic compounds
Dekeirsschieter, Jessica; Frederickx, Christine; Lognay, Georges et al.
2013In Journal of Forensic Sciences
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Keywords :
Forensic science; Forensic entomology; chemical ecology; carrion beetles; Silphinae; carrion ecology; cadaveric VOCs; insect olfaction; electroantennography; olfactometry
Abstract :
[en] Soon after death, carcasses release volatile chemicals that attract carrion insects including Silphidae. Nevertheless, it is not known which chemical cues are involved in the attractiveness of the carcass. So far, little information is available on the chemical ecology of carrion beetles, particularly concerning the subfamily of Silphinae. The biological role of selected cadaveric volatile organic compounds including: dimethyldisulfide (DMDS), butan-1-ol, n-butanoic acid, indole, phenol, p-cresol, putrescine, and cadaverine on the silphine species, Thanatophilus sinuatus Fabricius, was investigated by using both electrophysiological and behavioural techniques. Among the tested cadaveric compounds, butan-1-ol and DMDS elicited the strongest EAG from both T. sinuatus male and female antennae. In a two-arm olfactometer, males and females were significantly attracted to dimethyldisulfide (DMDS) for both tested doses, whereas only males were attracted to p-cresol at 100 ng. Putrescine was repellent to males at the dose of 1 µg
Disciplines :
Entomology & pest control
Author, co-author :
Dekeirsschieter, Jessica ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Frederickx, Christine ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Lognay, Georges ;  Université de Liège - ULiège > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique
Brostaux, Yves  ;  Université de Liège - ULiège > Sciences agronomiques > Statistique, Inform. et Mathém. appliquée à la bioingénierie
Verheggen, François  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Haubruge, Eric  ;  Université de Liège - ULiège > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech
Language :
English
Title :
Electrophysiological and behavioural responses of Thanatophilus sinuatus F. (Coleoptera: Silphidae) to selected cadaveric volatile organic compounds
Publication date :
June 2013
Journal title :
Journal of Forensic Sciences
ISSN :
0022-1198
eISSN :
1556-4029
Publisher :
ASTM International, Philadelphia, United States - Pennsylvania
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 May 2012

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