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Title: Remating in wild females of the Mediterranean fruit fly, Ceratitis capitata
Authors: Kraaijeveld, Ken 
Katsoyannos, Byron I. 
Stavrinides, Menelaos 
Kouloussis, Nikos A. 
Chapman, Tracey 
Keywords: Tephritidae;Fruit flies;Wild males
Category: AGRICULTURAL SCIENCES;Agricultural Biotechnology;Other Agricultural Sciences
Field: Agricultural Sciences
Issue Date: 1-Apr-2005
Source: Animal Behaviour, Volume 69, Issue 4, April 2005, Pages 771-776
Journal: Animal Behaviour 
Abstract: Female remating is widespread among animal taxa, and shows high interspecific diversity in frequency. While there is no consensus on general explanations for why females mate multiply, it is clear that remating rate has important implications for many evolutionary processes such as sperm competition, cryptic female choice and sexual conflict. We investigated the refractory period and the effect of sex ratio on remating in wild-derived individuals of the Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann) (Diptera, Tephritidae), an insect pest species of major worldwide economic importance. In addition, we determined the remating rates of wild females throughout the flying season. Experiments with medflies that were the offspring of wild flies showed that remating was frequent and was observed in 3.3-13.3% of females on each of the 4 days after the first mating. Many matings thus induce only a short refractory period. Again using the offspring of wild flies, we found that female remating increased significantly under a highly male-biased sex ratio. Microsatellite analysis of offspring from wild-collected females showed that remating is common (4-28% of offspring arrays showed multiple paternity) and occurred throughout the flying season of these insects. These results have important implications for insect pest management using the sterile insect technique. © 2004 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.
ISSN: 00033472
DOI: 10.1016/j.anbehav.2004.06.015
Type: Article
Appears in Collections:Άρθρα/Articles

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