Irradiated Male Tsetse from a 40-Year-Old Colony Are Still Competitive in a Riparian Forest in Burkina Faso

Autor: Renaud Lancelot, Adama Sow, Gerrmain J. Sawadogo, Philippe Solano, Marc J. B. Vreysen, Jérémy Bouyer, Augustin Bancé, Issa Sidibé, Zakaria Bengaly
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Integrated pest management
Male
Veterinary medicine
Entomology
lcsh:Medicine
L73 - Maladies des animaux
Trees
Sterile insect technique
Behavioral Ecology
Dynamique des populations
lcsh:Science
Multidisciplinary
geography.geographical_feature_category
Ecology
FLIES
Zoonotic Diseases
Contrôle de maladies
Lâcher d'insectes stériles
Agriculture
Abortion rate
Infectious Diseases
Vecteur de maladie
Veterinary Diseases
Forêt
surveillance
Medicine
Female
L72 - Organismes nuisibles des animaux
Research Article
Neglected Tropical Diseases
Competitive Behavior
Trypanosoma
Glossina
Tsetse Flies
Sterility
RIVERINE TSETSE
Biology
Microbiology
Vector Biology
African Trypanosomiasis
Integrated Control
Trypanosomiasis
Burkina Faso
Riparian forest
Animals
Avortement
Veterinary Sciences
Infertility
Male
geography
business.industry
lcsh:R
fungi
Pest control
Tsetse fly
Stérilisation
biology.organism_classification
Lutte biologique
Biotechnology
Gamma Rays
Veterinary Science
lcsh:Q
Irradiation
Pest Control
Population Ecology
business
Zdroj: PloS One
PLoS ONE, Vol 7, Iss 5, p e37124 (2012)
PLoS ONE
PLOS ONE
ISSN: 1932-6203
Popis: Background Tsetse flies are the cyclical vectors of African trypanosomosis that constitute a major constraint to development in Africa. Their control is an important component of the integrated management of these diseases, and among the techniques available, the sterile insect technique (SIT) is the sole that is efficient at low densities. The government of Burkina Faso has embarked on a tsetse eradication programme in the framework of the PATTEC, where SIT is an important component. The project plans to use flies from a Glossina palpalis gambiensis colony that has been maintained for about 40 years at the Centre International de Recherche-Developpement sur l'Elevage en zone Subhumide (CIRDES). It was thus necessary to test the competitiveness of the sterile males originating from this colony. Methodology/Principal Findings During the period January-February 2010, 16,000 sterile male G. p. gambiensis were released along a tributary of the Mouhoun river. The study revealed that with a mean sterile to wild male ratio of 1.16 (s.d. 0.38), the abortion rate of the wild female flies was significantly higher than before (p = 0.026) and after (p = 0.019) the release period. The estimated competitiveness of the sterile males (Fried index) was 0.07 (s.d. 0.02), indicating that a sterile to wild male ratio of 14.4 would be necessary to obtain nearly complete induced sterility in the female population. The aggregation patterns of sterile and wild male flies were similar. The survival rate of the released sterile male flies was similar to that observed in 1983-1985 for the same colony. Conclusions/Significance We conclude that gamma sterilised male G. p. gambiensis derived from the CIRDES colony have a competitiveness that is comparable to their competitiveness obtained 35 years ago and can still be used for an area-wide integrated pest management campaign with a sterile insect component in Burkina Faso. (Resume d'auteur)
Databáze: OpenAIRE
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