Sexual Selection on Male Morphology Independent of Male-Male Competition in the Mediterranean Fruit Fly (Diptera: Tephritidae)

Norry, Fabian M.; Calcagno, G.; Vera, M. Teresa; Manso, F.; Vilardi, Juan C.

doi:10.1093/aesa/92.4.571

Cited by 29 publications

(30 citation statements)

References 2 publications

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“…The results about HW are unclear but this trait might be female strain-dependent. Norry et al (1999), working under laboratory conditions with the same wild population (Alto Valle, Patagonia) and removing experimentally the presence of male-male competition (allowing only intersexual selection to occur) inferred that head morphology was a good predictor of mating success, while body size (TL) had no apparent effect. Rodriguero et al (2002) suggested that the advantage of larger males in field cage experiments where male-male interactions can take place could be explained by the occurrence of intrasexual selection.…”

Section: Discussionmentioning

confidence: 99%

“…Mating success in C. capitata is determined by factors such as morphology (Churchill Stanland et al, 1986;Hunt et al, 1998;Norry et al, 1999;Orozco and Ló pez, 1993;Rodriguero et al, 2002), nutritional level (Blay and Yuval, 1997), and behaviour (Calcagno, , 2002. To date, there is very little information, if any, about the occurrence of assortative mating based on morphology, even though there is evidence of departures from random mating respect to strain (eg, Zapien et al, 1983;McInnis et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…Analysing video recorded courtships of lab and wild medflies Norry et al (1999) were able to detect intersexual selection on morphometric traits. In a previous work under field cage conditions (Cayol et al, 1999) male competitiveness and sexual compatibility between wild medflies from Patagonia (Argentina) and a mass-rearing strain (Seib 6-96) were evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)

Rodriguero

Vera

Rial³

et al. 2002

Heredity

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Males with a larger thorax and narrower face were found to be favoured by directional sexual selection in a previous field cage experiment where Ceratitis capitata males from the Seib 6-96 genetic sexing strain competed with wild males from Alto Valle (Patagonia) for the possession of wild females. Targets of sexual selection, however, might differ between wild and laboratory females as a response to adaptation to mass-rearing conditions. To evaluate possible divergences on the targets of sexual selection as a by-product of adaptation to mass-rearing conditions, field cage tests were performed with both wild and laboratory females.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)

Rodriguero

Vera

Rial³

et al. 2002

Heredity

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“…Each wing was then photographed using a Firewire digital camera (3 megapixels; Jenoptik ProgRes C10, Germany) through the phototube of a stereomicroscope (SZX12, Olympus) at × 20 magnification. As a size-related trait ( Norry et al , 1999 ), wing length was measured (in mm) from the intersection of the anal and median band to the margin of the costal band and the R 4 + 5 vein ( Perez-Staples et al , 2007a ) using Image Tools software, version 2.25 (University of Texas, San Antonio, Texas).…”

Section: Mating Experimentsmentioning

confidence: 99%

Potential for pre‐release diet supplements to increase the sexual performance and longevity of male Queensland fruit flies

Pérez‐Staples

Harmer

Collins

et al. 2008

Agri and Forest Entomology

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1 Recent studies have shown that continuous access to a protein source (yeast hydrolysate) can greatly enhance the sexual performance of male Queensland fruit flies ( Bactrocera tryoni ; 'Q-flies'). However, in Sterile Insect Technique programmes used to eradicate or suppress wild populations, mass-reared Q-flies are typically fed only sucrose and water for up to 2 days before release. 2 We investigated whether adding a protein source to the diet of male Q-flies for a 24-or 48-h window after emergence and then removing it is sufficient to enhance mating probability, latency to mate, copula duration, probability of sperm storage, number of sperm stored, female remating tendency and longevity of male Q-flies. 3 Protein-fed males were more likely to mate than males fed only sucrose, especially when young. Protein-fed males also had shorter mating latencies and longer copulations than protein-deprived males. 4 Females mated by protein-fed males were more likely to store sperm, stored more sperm and were less likely to remate than were females mated by proteindeprived males. Females were also less likely to remate if their first mate had been large. 5 Overall, providing male Q-flies access to a protein source for a 24-or 48-h window early on in their adult life was sufficient to greatly enhance all assessed measures of performance. Although 24-h access was sufficient for a notable enhancement, further benefits were evident in males provided 48-h access. 6 The results are discussed in terms of the practical implications for Sterile Insect Technique programs used to eradicate or suppress wild Q-fly populations.

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“…Studies of mating behavior in C. capitata have shown that various parameters determine male mating success, including body size, body symmetry, protein intake and courtship activity (Blay & Yuval 1997, Orozco & Lopez 1993, Norry et al 1999, Rodriguero et al 2002. Considering the good performance of Hybrid-Pop flies during their immature phase, and the large size of emerging adults, it makes sense that Hybrid-Pop males could successfully compete with Lab-Pop males for laboratory-reared females.…”

Section: Discussionmentioning

confidence: 99%

Biological and behavioral aspects of two laboratory strains of Ceratitis capitata (Diptera: Tephritidae): the influence of periodic introduction of wild flies in the colony

Joachim‐Bravo¹,

Neto²,

Dias

2009

AZM

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ABSTRACT.The healthy maintenance of insects reared under laboratory conditions requires strategies to retain the natural characteristics of their life-histories traits. Rearing strategies include artificial selection to laboratory conditions, hybridization with compatible strains, and supplying the colony with wild individuals. We compared behavioral as well as life-history aspects of two laboratory strains of Ceratitis capitata Wiedemann (Diptera, Tephritidae) that had either been reared for 15-20 years under laboratory conditions with or without introducing wild specimens (Lab-Pop and Hybrid-pop, respectively). The parameters evaluated were: performance and food ingestion of immatures, adult size and longevity, female oviposition preference and fecundity, egg viability, and mating choice. Analyses of these parameters were conducted under laboratory rearing conditions. The largest differences observed between the two strains were related to behavioral components: food ingestion rate at the larval stage and oviposition behavior. In general, Lab-Pop individuals were less selective and more adapted to the artificial diet than Hybrid-Pop individuals (diet consumption), but there were no significant differences between the two strains in terms of percentage of emergence, egg viability, adult size, fecundity, and mating choice. It is suggested that the use of hybrid strains is more appropriate than the use of strains without the incorporation of wild individuals, especially in studies that involve behavioral parameters, as hybrid strains behave very similarly to wild populations, according our previous studies. Key words: fruit flies, laboratory rearing, feeding behavior, life history. insectos incluyen selección, hibridación con linajes compatibles y suministro a la colonia con individuos silvestres. Para investigar este último punto, comparamos los aspectos comportamentales así como los aspectos de las historias de vida de dos colonias de laboratorio de Ceratitis capitata Wiedemann (Diptera, Tephritidae) que han sido criadas entre 15 y 20 años en condiciones de laboratorio sin introducir ejemplares silvestres (Lab-Pop), o con introducciones ocasionales (Hybrid-Pop). Los parámetros evaluados fueron: el desempeño y la tasa de ingesta larval, el tamaño y la longevidad de los adultos, la preferencia de oviposición y fecundidad de la hembra, la viabilidad del huevo, y la elección para el apareamiento. Se realizaron análisis de estos parámetros bajo condiciones de cría con una dieta artificial. Las mayores diferencias entre individuos de las dos colonias se registraron en variables comportamentales: tasa de ingesta larval y comportamiento de oviposición. En general, la colonia LabPop fue menos selectiva y más adaptada a la dieta artificial que la colonia Hybrid-Pop (consumo de la dieta), pero no hubo ninguna diferencia significativa entre las dos poblaciones en el porcentaje de emergencia, la viabilidad del huevo, el tamaño de los adultos, la fecundidad, y éxito en el apareamiento. Se sugiere que el uso de colonias híbri...

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Sexual Selection on Male Morphology Independent of Male-Male Competition in the Mediterranean Fruit Fly (Diptera: Tephritidae)

Cited by 29 publications

References 2 publications

Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)

Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)

Potential for pre‐release diet supplements to increase the sexual performance and longevity of male Queensland fruit flies

Biological and behavioral aspects of two laboratory strains of Ceratitis capitata (Diptera: Tephritidae): the influence of periodic introduction of wild flies in the colony

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