Quilici Serge, Blard F., Franck Antoine, Dos Reis Correia Elisabeth, Goudin Reynald.
1999. Comparative studies on the courtship behaviour of three Ceratitis spp. in Reunion island.
In : Meeting on "Medfly Mating Behaviour Studies under Field Cage Conditions", Antigua, Guatemala, 29 june to 03 of july, 1999. FAO ; IAEA
Résumé : Comparative studies were conducted in Reunion island on the courtship behaviour of the mediterranean fruit fly, #Ceratitis capitata# (Wiedemann) and the natal fruit fly, #Ceratitis rosa# (Karsch). Preliminary observations were also made on another Ceratitis, endemic from the Mascarenes, #Ceratitis catoirii# Guérin-Mèneville. Preliminary experiments in field cages allowed us to precise the optimal age for mating in local wild populations of #C. capitata# (9 days-old adults) and #C. rosa# (13 days-old males, and 13-15 days-old females). Video recordings of close interactions between wild males and females #C. capitata# showed no significant differences between the durations of male or female activities and mating success. Some video recordings of lab #C. rosa# and #C. catoirii# allowed us to precise close interactions between sexes during courtship behaviour in these species. In #C. rosa#, male courtship display involves fanning but no buzzing or head-rocking. Close interactions are very brief and before assault male throws its mid-legs in the direction of the female. In #C. catoirii# male courtship appears more similar to medfly's male behaviour, including fanning, buzzing, but no headrocking. Circadian rythm of #C. caloirii# male calling was studied in lab cages, showing that most activities occur in the morning in this species. The study of circadian rythm of activities of both sexes of #C. rosa# in field-cages and in a citrus orchard shows that the peak of courtship activities in the end of the afternoon coincides with a peak in egg-laying activity of females. The spatial distribution and structure of leks in #C. rosa# were studied in a citrus plot at preharvest period. In these conditions, male calling was shown to occur mostly on the underside of fruits.
Classification Agris : H10 - Ravageurs des plantes
Auteurs et affiliations
- Quilici Serge, CIRAD-FLHOR-ARF (REU)
- Blard F.
- Franck Antoine, CIRAD-FLHOR-ARF (REU)
- Dos Reis Correia Elisabeth
- Goudin Reynald
Source : Cirad - Agritrop (https://agritrop.cirad.fr/391905/)
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