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Effects of irradiation, presence of females, and sugar supply on the longevity of sterile males Aedes albopictus (Skuse) under semi-field conditions on Reunion Island.
MedLine Citation:
PMID:  23206578     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The development of the sterile insect technique (SIT) for reducing populations of Aedes albopictus (Skuse), (the vector of Chikungunya and Dengue fever), was studied in Reunion Island. For some mosquito species the sterilization process and mating activity may alter male survival. Most previous studies were carried out in the laboratory and may inadequately reflect the field situation. We conducted a semi-field experiment to evaluate the impact of sugar supply and mating activity under natural climatic conditions on wild and sterile male Ae. albopictus longevity, using large cages set up in an open clearing between trees and shrubs in Reunion Island. RESULTS: Wild males had a mean longevity of 15.5 days in the absence of females and with an immediate sugar supply; longevity in sterile males was similar. The presence of females greatly reduced both wild and especially sterile male lifespan; however, an immediate sugar supply could counteract this effect and allow sterile males to live an average of 11.6 days. CONCLUSION: The outcomes indicate that sugar feeding could compensate for sterilization-induced damage, and that mating activity is not deleterious for well-fed males. This study stresses the critical importance of providing suitable sugar sources prior to release during SIT programmes.
Authors:
Clelia F Oliva; Marco J Maier; Jeremie Gilles; Maxime Jacquet; Guy Lemperiere; Serge Quilici; Marc J B Vreysen; François Schooneman; Dave D Chadee; Sebastien Boyer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-30
Journal Detail:
Title:  Acta tropica     Volume:  -     ISSN:  1873-6254     ISO Abbreviation:  Acta Trop.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370374     Medline TA:  Acta Trop     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
MIVEGEC (IRD 224-CNRS 5290-UM1-UM2), Montpellier, France; Centre de Recherche et de Veille sur les Maladies Emergentes dans l'Océan Indien, 2 rue Maxime Rivière, 97490 Sainte Clotilde, La Réunion, France; Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, FAO/IAEA Agriculture and Biotechnology Laboratories, A-2444 Seibersdorf, Austria.
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