Accumulation des carbohydrates chez les sexués de plusieurs espèces de fourmis en relation avec l'existence ou l'absence d'un vol nuptial

Détails

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Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_3BD8977DE399
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Accumulation des carbohydrates chez les sexués de plusieurs espèces de fourmis en relation avec l'existence ou l'absence d'un vol nuptial
Périodique
Actes des Colloques Insectes Sociaux
Auteur(s)
Passera L., Keller L., Grimal A.
ISSN
0257-0076
ISSN-L
2-905272-02-5
Statut éditorial
Publié
Date de publication
1989
Peer-reviewed
Oui
Volume
5
Pages
55-62
Langue
français
Résumé
The dispersal strategy of ants generally makes use of a nuptial flight to bring together the sexes. The energy necessary to accomplish this flight comes from stored carbohydrates. However, in some species, one of the sexes does not fly and mating occurs in the nest. This is the case in Iridomyrmex humilis and Cataglyphis cursor, in which the virgin queens possess wings but not leave the natal nest. We show in this work that the winged females of these two species accumulate very little carbohydrate during the maturation period occuring between emergence and mating: expressed as a percentage of dry weight at the time of mating, the total carbohydrates reach only 3.2% in I. humilis and 2.1% in C. cursor. In contrast, the males of these species which fly, possess three to four times more carbohydrates (13.0% and 6.2%, respectively). These latter values are very similar to those found for both sexes of species employing nuptial flights, such several species of wood ants (Formica rufa, F. polyctena, F. lugubris ), Lasius (L. niger , L. flavus ) or Myrmica scabrinodis also studied here. It appears that the absence of the mating flight is associated with reduced levels of carbohydrates, specially glycogen
Mots-clé
Carbohydrates, glycogen, free sugars, energy content, period of maturation, sexuals, nuptialflight
Création de la notice
24/01/2008 19:39
Dernière modification de la notice
03/03/2018 16:18
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