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Title: Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)

Abstract

Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) displays a lek mating system. Males form groups in which they simultaneously display signals (acoustical, visual, or chemical) to attract females with the purpose of mating. Females visit the lek and choose among signaling and courting males to mate. Scarce information is available in A. fraterculus about the main factors involved in female choice and the behavior of displaying males. This information could be important within the context of pest control programs with a sterile insect technique (SIT) component, because departures from normal sexual behavior caused by artificial rearing could affect males' performance in the field. In this study we assessed A. fraterculus male behavior within the leks and analyzed the importance of behavioral and morphological traits on their copulatory success. The existence of preferred places for lek formation was evaluated in field cages with trees inside and analyzed by dividing the trees in sectors according to a 3-dimensional system. Males were individually weighed, marked, and observed every 15 min. Morphometric and behavioral characteristics of successful and unsuccessful males were compared. Most successful males grouped in a region of the tree characterized by the highest light intensity in the first 2 h of the morning.more » Results showed that pheromone calling activity is positively associated with copulatory success. Copulations were more frequent for males calling inside the lek, indicating that pheromone calling activity and presence in the lek are key factors for copulatory success. A positive association between copulatory success and eye length was found; some characteristics of the face were also associated with copula duration and latency. (author) [Spanish] Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) presenta un sistema de apareamiento tipo lek. Los machos forman grupos y, en forma conjunta, emiten senales (acusticas, visuales, o quimicas) para atraer a las hembras con el proposito de aparearse. Las hembras visitan el lek y eligen entre los machos para copular. La informacion acerca de los principales factores involucrados en la eleccion de la hembra y de la influencia del comportamiento de los machos en los leks en esta eleccion es escasa para A. fraterculus . Esta informacion es importante en el contexto de programas de control que incluyen la Tecnica del Insecto Esteril. En el presente estudio se evaluo el comportamiento sexual de machos de A. fraterculus dentro de los leks, y la asociacion de su comportamiento y de rasgos morfometricos con el exito copulatorio. El lugar preferido de agrupamiento de los machos fue evaluado en jaulas de campo con arboles en su interior y dividiendo el arbol en sectores de acuerdo a un sistema de tres dimensiones. Los machos fueron individualmente pesados, marcados y observados cada quince minutos. Luego de finalizado el ensayo se midieron los rasgos morfometricos. El mayor exito correspondio a machos agrupados en una region del arbol caracterizada por tener la mayor intensidad de luz en las dos primeras horas de la manana. Los resultados mostraron que la actividad de llamado con feromonas esta asociada con el exito copulatorio. Las copulas fueron mas frecuentes para machos que llamaron dentro del lek, indicando que la actividad de llamado con feromonas y la presencia dentro del lek son factores importantes en la obtencion de la copula. Los analisis morfometricos revelaron una asociacion positiva entre el exito copulatorio y el largo del ojo, y que algunas caracteristicas de la cara estan asociadas ademas con la duracion de la copula y la latencia. (author)« less

Authors:
; ;  [1]; ; ; ;  [2];  [3];  [4]
  1. Instituto de Genetica, Instituto Nacional de Tecnologia Agropecuaria, Castelar CC 25, 1712 Castelar (Argentina)
  2. Departamento de Ecologia, Genetica y Evolucion, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina)
  3. Estacion Experimental Agroindustrial Obispo Colombres, Tucuman (Argentina)
  4. Comision Nacional de Energia Atomica, Buenos Aires (Argentina)
Publication Date:
OSTI Identifier:
20942922
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[154:LBOAFD]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; 47 refs, 2 figs, 3 tabs
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; ANASTREPHA; MASS REARING; MATING; PERFORMANCE; PEST CONTROL; PHEROMONE; STERILE MALE TECHNIQUE; TREES

Citation Formats

Segura, D., Petit-Marty, N., Cladera, J., Sciurano, R., Calcagno, G., Gomez Cendra, P., Vilardi, J., Vera, T., and Allinghi, A. Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae). United States: N. p., 2007. Web. doi:10.1653/0015-4040(2007)90[154:LBOAFD]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; 47 REFS, 2 FIGS, 3 TABS.
Segura, D., Petit-Marty, N., Cladera, J., Sciurano, R., Calcagno, G., Gomez Cendra, P., Vilardi, J., Vera, T., & Allinghi, A. Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae). United States. doi:10.1653/0015-4040(2007)90[154:LBOAFD]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; 47 REFS, 2 FIGS, 3 TABS.
Segura, D., Petit-Marty, N., Cladera, J., Sciurano, R., Calcagno, G., Gomez Cendra, P., Vilardi, J., Vera, T., and Allinghi, A. Thu . "Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)". United States. doi:10.1653/0015-4040(2007)90[154:LBOAFD]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; 47 REFS, 2 FIGS, 3 TABS.
@article{osti_20942922,
title = {Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)},
author = {Segura, D. and Petit-Marty, N. and Cladera, J. and Sciurano, R. and Calcagno, G. and Gomez Cendra, P. and Vilardi, J. and Vera, T. and Allinghi, A.},
abstractNote = {Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) displays a lek mating system. Males form groups in which they simultaneously display signals (acoustical, visual, or chemical) to attract females with the purpose of mating. Females visit the lek and choose among signaling and courting males to mate. Scarce information is available in A. fraterculus about the main factors involved in female choice and the behavior of displaying males. This information could be important within the context of pest control programs with a sterile insect technique (SIT) component, because departures from normal sexual behavior caused by artificial rearing could affect males' performance in the field. In this study we assessed A. fraterculus male behavior within the leks and analyzed the importance of behavioral and morphological traits on their copulatory success. The existence of preferred places for lek formation was evaluated in field cages with trees inside and analyzed by dividing the trees in sectors according to a 3-dimensional system. Males were individually weighed, marked, and observed every 15 min. Morphometric and behavioral characteristics of successful and unsuccessful males were compared. Most successful males grouped in a region of the tree characterized by the highest light intensity in the first 2 h of the morning. Results showed that pheromone calling activity is positively associated with copulatory success. Copulations were more frequent for males calling inside the lek, indicating that pheromone calling activity and presence in the lek are key factors for copulatory success. A positive association between copulatory success and eye length was found; some characteristics of the face were also associated with copula duration and latency. (author) [Spanish] Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) presenta un sistema de apareamiento tipo lek. Los machos forman grupos y, en forma conjunta, emiten senales (acusticas, visuales, o quimicas) para atraer a las hembras con el proposito de aparearse. Las hembras visitan el lek y eligen entre los machos para copular. La informacion acerca de los principales factores involucrados en la eleccion de la hembra y de la influencia del comportamiento de los machos en los leks en esta eleccion es escasa para A. fraterculus . Esta informacion es importante en el contexto de programas de control que incluyen la Tecnica del Insecto Esteril. En el presente estudio se evaluo el comportamiento sexual de machos de A. fraterculus dentro de los leks, y la asociacion de su comportamiento y de rasgos morfometricos con el exito copulatorio. El lugar preferido de agrupamiento de los machos fue evaluado en jaulas de campo con arboles en su interior y dividiendo el arbol en sectores de acuerdo a un sistema de tres dimensiones. Los machos fueron individualmente pesados, marcados y observados cada quince minutos. Luego de finalizado el ensayo se midieron los rasgos morfometricos. El mayor exito correspondio a machos agrupados en una region del arbol caracterizada por tener la mayor intensidad de luz en las dos primeras horas de la manana. Los resultados mostraron que la actividad de llamado con feromonas esta asociada con el exito copulatorio. Las copulas fueron mas frecuentes para machos que llamaron dentro del lek, indicando que la actividad de llamado con feromonas y la presencia dentro del lek son factores importantes en la obtencion de la copula. Los analisis morfometricos revelaron una asociacion positiva entre el exito copulatorio y el largo del ojo, y que algunas caracteristicas de la cara estan asociadas ademas con la duracion de la copula y la latencia. (author)},
doi = {10.1653/0015-4040(2007)90[154:LBOAFD]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; 47 REFS, 2 FIGS, 3 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}
}