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Abstract:

Despite the interest in applying environmentally friendly control methods such as sterile insect technique (SIT) against Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae), information about its biology, taxonomy, and behavior is still insufficient. To increase this information, the present study aims to evaluate the performance of wild flies under field cage conditions through the study of sexual competitiveness among males (sexual selection). A wild population from Horco Molle, Tucumán, Argentina was sampled. Mature virgin males and females were released into outdoor field cages to compete for mating. Morphometric analyses were applied to determine the relationship between the multivariate phenotype and copulatory success. Successful and unsuccessful males were measured for 8 traits: head width (HW), face width (FW), eye length (EL), thorax length (THL), wing length (WL), wing width (WW), femur length (FL), and tibia length (TIL). Combinations of different multivariate statistical methods and graphical analyses were used to evaluate sexual selection on male phenotype. The results indicated that wing width and thorax length would be the most probable targets of sexual selection. They describe a nonlinear association between expected fitness and each of these 2 traits. This nonlinear relation suggests that observed selection could maintain the diversity related to body size.

Registro:

Documento: Artículo
Título:Sexual selection on multivariate phenotypes in Anastrepha fraterculus (Diptera: Tephritidae) from Argentina
Autor:Sciurano, R.; Segura, D.; Rodriguero, M.; Cendra, P.G.; Allinghi, A.; Cladera, J.L.; Vilardi, J.
Filiación:Depto. Ecología, Genética Y Evolución, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
Instituto de Genética, Instituto Nacional de Tecnología Agropecuaria, Argentina
Comisión Nacional de Energía Atómica, Argentina
Palabras clave:Anastrepha fraterculus; Morphology; Morphometric analysis; Multivariate statistical techniques; Sexual selection; Sterile insect technique; competition (ecology); fly; male behavior; mating behavior; morphology; morphometry; multivariate analysis; phenotype; reproductive success; sexual selection; Argentina; Horco Molle Experimental Reserve; South America; Tucuman; Anastrepha fraterculus; Diptera; Hexapoda; Tephritidae
Año:2007
Volumen:90
Número:1
Página de inicio:163
Página de fin:170
DOI: http://dx.doi.org/10.1653/0015-4040(2007)90[163:SSOMPI]2.0.CO;2
Título revista:Florida Entomologist
Título revista abreviado:Fla. Entomol.
ISSN:00154040
CODEN:FETMA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00154040_v90_n1_p163_Sciurano.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v90_n1_p163_Sciurano

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Citas:

---------- APA ----------
Sciurano, R., Segura, D., Rodriguero, M., Cendra, P.G., Allinghi, A., Cladera, J.L. & Vilardi, J. (2007) . Sexual selection on multivariate phenotypes in Anastrepha fraterculus (Diptera: Tephritidae) from Argentina. Florida Entomologist, 90(1), 163-170.
http://dx.doi.org/10.1653/0015-4040(2007)90[163:SSOMPI]2.0.CO;2
---------- CHICAGO ----------
Sciurano, R., Segura, D., Rodriguero, M., Cendra, P.G., Allinghi, A., Cladera, J.L., et al. "Sexual selection on multivariate phenotypes in Anastrepha fraterculus (Diptera: Tephritidae) from Argentina" . Florida Entomologist 90, no. 1 (2007) : 163-170.
http://dx.doi.org/10.1653/0015-4040(2007)90[163:SSOMPI]2.0.CO;2
---------- MLA ----------
Sciurano, R., Segura, D., Rodriguero, M., Cendra, P.G., Allinghi, A., Cladera, J.L., et al. "Sexual selection on multivariate phenotypes in Anastrepha fraterculus (Diptera: Tephritidae) from Argentina" . Florida Entomologist, vol. 90, no. 1, 2007, pp. 163-170.
http://dx.doi.org/10.1653/0015-4040(2007)90[163:SSOMPI]2.0.CO;2
---------- VANCOUVER ----------
Sciurano, R., Segura, D., Rodriguero, M., Cendra, P.G., Allinghi, A., Cladera, J.L., et al. Sexual selection on multivariate phenotypes in Anastrepha fraterculus (Diptera: Tephritidae) from Argentina. Fla. Entomol. 2007;90(1):163-170.
http://dx.doi.org/10.1653/0015-4040(2007)90[163:SSOMPI]2.0.CO;2