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Title: Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae)

Abstract

Sterile male insects, mass-reared and released as part of sterile insect technique (SIT) programs, must survive long enough in the field to mature sexually and compete effectively with wild males for wild females. An often reported problem in Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann) SIT programs is that numbers of released sterile males decrease rapidly in the field for various reasons, including losses to different types of predators. This is a serious issue in view that most operational programs release sterile flies at an age when they are still immature. Previous field and field-cage tests have confirmed that flies of laboratory strains are less able to evade predators than wild flies. Such tests involve, however, considerable manipulation and observation of predators and are therefore not suitable for routine measurements of predator evasion. Here we describe a simple quality control method with aspirators to measure agility in medflies and show that this parameter is related to the capacity of flies to evade predators. Although further standardization of the test is necessary to allow more accurate inter-strain comparisons, results confirm the relevance of measuring predator evasion in mass-reared medfly strains. Besides being a measure of this sterile male quality parameter, themore » described method could be used for the systematic selection of strains with a higher capacity for predator evasion. (author) [Spanish] Insectos machos esteriles criados en forma masiva para ser liberados en programas que utilizan la tecnica del insecto esteril (TIE), tienen que tener la capacidad de sobrevivir en el campo el tiempo necesario para poder madurar sexualmente y competir efectivamente con los machos silvestres por hembras silvestres. Un problema frecuentemente reportado por dichos programas de la mosca del Mediterraneo, Ceratitis capitata (Wiedemann), es que el numero de machos esteriles de laboratorio liberados en el campo, decrecen rapidamente por varias razones, incluyendo perdidas debidas a diferentes tipos de depredadores. Estudios anteriores conducidos en el campo, y en jaulas de campo, han confirmado que las cepas de machos de laboratorio tienen menos capacidad de evadir depredadores que los machos silvestres. Estos estudios involucran, sin embargo, una considerable cantidad de manipulacion y observacion de depredadores, por lo que no son adecuados para ser usados como medidas rutinarias en los programas de cria masiva. Aqui describimos un metodo sencillo de control de calidad usando aspiradores para medir agilidad en la mosca del Mediterraneo y mostramos que este parametro esta relacionado a la capacidad de la moscas a evadir a depredadores. Aunque aun es necesario refinar la estandarizacion de este metodo para permitir la comparacion entre cepas, los resultados confirman la importancia de tener un metodo rutinario para medir la capacidad de evasion de depredadores en cepas de cria de laboratorio de la mosca del Mediterraneo. Ademas de medir este parametro de control de calidad de los machos esteriles, el metodo descrito podria tambien ser usado para la seleccion sistematica de cepas con una mayor capacidad de evasion de depredadores. (author)« less

Authors:
 [1]; ;  [2];  [3]
  1. Department for Conservation Biology, Vegetation and Landscape Ecology, University of Vienna, Althanstrasse 14, A-1090 Vienna (Austria)
  2. Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Wagramerstrasse 5, P.O. Box 100, A-1400 Vienna (Austria)
  3. Laboratory of Applied Zoology and Parasitology, Department of Agriculture, Aristotle University of Thessaloniki, 541 24 Thessaloniki (Greece)
Publication Date:
OSTI Identifier:
20942911
Resource Type:
Journal Article
Resource Relation:
Journal Name: Florida Entomologist; Journal Volume: 90; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); DOI: 10.1653/0015-4040(2007)90[64:QCMTMP]2.0.CO;2; Proceedings of a 5-year FAO/IAEA Coordinated Research Project on Fruit Fly Quality, Control, and Behavior; Spanish abstract translation provided by the authors; 28 refs, 5 tabs
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; CERATITIS CAPITATA; FEMALES; GENETIC VARIABILITY; MASS REARING; PEST CONTROL; STERILE MALE TECHNIQUE

Citation Formats

Hendrichs, M., Wornoayporn, V., Hendrichs, J., and Katsoyannos, B. Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae). United States: N. p., 2007. Web. doi:10.1653/0015-4040(2007)90[64:QCMTMP]2.0.CO;2; PROCEEDINGS OF A 5-YEAR FAO/IAEA COORDINATED RESEARCH PROJECT ON FRUIT FLY QUALITY, CONTROL, AND BEHAVIOR; SPANISH ABSTRACT TRANSLATION PROVIDED BY THE AUTHORS; 28 REFS, 5 TABS.
Hendrichs, M., Wornoayporn, V., Hendrichs, J., & Katsoyannos, B. Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae). United States. doi:10.1653/0015-4040(2007)90[64:QCMTMP]2.0.CO;2; PROCEEDINGS OF A 5-YEAR FAO/IAEA COORDINATED RESEARCH PROJECT ON FRUIT FLY QUALITY, CONTROL, AND BEHAVIOR; SPANISH ABSTRACT TRANSLATION PROVIDED BY THE AUTHORS; 28 REFS, 5 TABS.
Hendrichs, M., Wornoayporn, V., Hendrichs, J., and Katsoyannos, B. Thu . "Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae)". United States. doi:10.1653/0015-4040(2007)90[64:QCMTMP]2.0.CO;2; PROCEEDINGS OF A 5-YEAR FAO/IAEA COORDINATED RESEARCH PROJECT ON FRUIT FLY QUALITY, CONTROL, AND BEHAVIOR; SPANISH ABSTRACT TRANSLATION PROVIDED BY THE AUTHORS; 28 REFS, 5 TABS.
@article{osti_20942911,
title = {Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae)},
author = {Hendrichs, M. and Wornoayporn, V. and Hendrichs, J. and Katsoyannos, B.},
abstractNote = {Sterile male insects, mass-reared and released as part of sterile insect technique (SIT) programs, must survive long enough in the field to mature sexually and compete effectively with wild males for wild females. An often reported problem in Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann) SIT programs is that numbers of released sterile males decrease rapidly in the field for various reasons, including losses to different types of predators. This is a serious issue in view that most operational programs release sterile flies at an age when they are still immature. Previous field and field-cage tests have confirmed that flies of laboratory strains are less able to evade predators than wild flies. Such tests involve, however, considerable manipulation and observation of predators and are therefore not suitable for routine measurements of predator evasion. Here we describe a simple quality control method with aspirators to measure agility in medflies and show that this parameter is related to the capacity of flies to evade predators. Although further standardization of the test is necessary to allow more accurate inter-strain comparisons, results confirm the relevance of measuring predator evasion in mass-reared medfly strains. Besides being a measure of this sterile male quality parameter, the described method could be used for the systematic selection of strains with a higher capacity for predator evasion. (author) [Spanish] Insectos machos esteriles criados en forma masiva para ser liberados en programas que utilizan la tecnica del insecto esteril (TIE), tienen que tener la capacidad de sobrevivir en el campo el tiempo necesario para poder madurar sexualmente y competir efectivamente con los machos silvestres por hembras silvestres. Un problema frecuentemente reportado por dichos programas de la mosca del Mediterraneo, Ceratitis capitata (Wiedemann), es que el numero de machos esteriles de laboratorio liberados en el campo, decrecen rapidamente por varias razones, incluyendo perdidas debidas a diferentes tipos de depredadores. Estudios anteriores conducidos en el campo, y en jaulas de campo, han confirmado que las cepas de machos de laboratorio tienen menos capacidad de evadir depredadores que los machos silvestres. Estos estudios involucran, sin embargo, una considerable cantidad de manipulacion y observacion de depredadores, por lo que no son adecuados para ser usados como medidas rutinarias en los programas de cria masiva. Aqui describimos un metodo sencillo de control de calidad usando aspiradores para medir agilidad en la mosca del Mediterraneo y mostramos que este parametro esta relacionado a la capacidad de la moscas a evadir a depredadores. Aunque aun es necesario refinar la estandarizacion de este metodo para permitir la comparacion entre cepas, los resultados confirman la importancia de tener un metodo rutinario para medir la capacidad de evasion de depredadores en cepas de cria de laboratorio de la mosca del Mediterraneo. Ademas de medir este parametro de control de calidad de los machos esteriles, el metodo descrito podria tambien ser usado para la seleccion sistematica de cepas con una mayor capacidad de evasion de depredadores. (author)},
doi = {10.1653/0015-4040(2007)90[64:QCMTMP]2.0.CO;2; PROCEEDINGS OF A 5-YEAR FAO/IAEA COORDINATED RESEARCH PROJECT ON FRUIT FLY QUALITY, CONTROL, AND BEHAVIOR; SPANISH ABSTRACT TRANSLATION PROVIDED BY THE AUTHORS; 28 REFS, 5 TABS},
journal = {Florida Entomologist},
number = 1,
volume = 90,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}