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Mostrando ítems 1-15 de 15
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Differences in sperm storage and remating propensity between adult females of two morphotypes of the Anastrepha fraterculus (Diptera: Tephritidae) cryptic species complex
Abraham, Solana; Rull Gabayet, Juan Antonio; Mendoza, Mariana; Liendo, María Clara; Devescovi, Francisco; Roriz, Alzira K.P.; Kovaleski, Adalesio; Segura, Diego Fernando; Vera, María Teresa (Cambridge University Press, 2014-06)The South American fruit fly, Anastrepha fraterculus, is a complex of cryptic species composed of at least seven morphotypes. Some of them, such as the Peruvian and Brazilian 1 morphotypes (which include Argentinean ... -
Effect of Fruit Volatiles from Native Host Plants on the Sexual Performance of Anastrepha fraterculus sp. 1 Males
Bachmann, Guillermo Enrique; Belliard, Silvina Ahnahi; Devescovi, Francisco; Nussenbaum, Ana Laura; Fernández, Patricia Carina; Vera, María Teresa; Ruiz, María Josefina; Segura, Diego Fernando (MDPI, 2023-02)Anastrepha fraterculus sp.1 males are sexually stimulated by the aroma of fruit of its native host Psidium guajava (guava). Other hosts, which are exotic to A. fraterculus, do not enhance male sexual behavior. Here we ... -
Effects of superparasitism on immature and adult stages of Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae) reared on Ceratitis capitata Wiedemann (Diptera: Tephritidae)
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (2017)The optimal use of available host by parasitoid insects should be favoured by natural selection. For solitary parasitoids, superparasitism (i.e. the egg-laying of several eggs/host) may represent a detrimental phenomenon ... -
Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation
Juárez, María Laura; Devescovi, Francisco; Břízová, Radka; Bachmann, Guillermo Enrique; Segura, Diego Fernando; Kalinová, Blanka; Fernandez, Patricia; Ruiz, María Josefina; Yang, Jianquan; Teal, Peter E. A.; Caceres, Carlos; Vreysen, Marc J. B.; Hendrichs, Jorge; Vera, María Teresa (Pensoft Publishers, 2015-11)The study of sexual behavior and the identification of the signals involved in mate recognition between con-specifics are key components that can shed some light, as part of an integrative taxonomic approach, in delimitating ... -
Fruit infestation patterns by Anastrepha fraterculus and Ceratitis capitata reveal that cross-recognition does not lead to complete avoidance of interspecific competition in nature
Devescovi, Francisco; Liendo, María Clara; Bachmann, Guillermo Enrique; Bouvet, Juan Pedro; Milla, Fabian Horacio; Vera, María Teresa; Cladera, Jorge Luis; Segura, Diego Fernando (Wiley, 2015-08)1. The avoidance of parasitized or infested hosts, which is a common phenomenon in parasitic wasps and phytophagous insects, may act both intra- and interspecifically. Most studies on chemically-mediated avoidance of ... -
Host discrimination in the fruit fly parasitoid Diachasmimorpha longicaudata : evidence from virgin female behaviour and egg distribution patterns
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (Cambridge University Press, 2021-04)Many parasitoid species discriminate already parasitized hosts, thus avoiding larval competition. However, females incur in superparasitism under certain circumstances. Superparasitism is commonly observed in the artificial ... -
Identification and characterization of soluble binding proteins associated with host foraging in the parasitoid wasp Diachasmimorpha longicaudata
Wulff, Juan Pedro; Segura, Diego Fernando; Devescovi, Francisco; Muntaabski, Irina; Milla, Fabian Horacio; Scannapieco, Alejandra Carla; Cladera, Jorge Luis; Lanzavecchia, Silvia Beatriz (Plos, 2021-06)The communication and reproduction of insects are driven by chemical sensing. During this process, chemical compounds are transported across the sensillum lymph to the sensory neurons assisted by different types of soluble ... -
Innate Host Habitat Preference in the Parasitoid Diachasmimorpha longicaudata: Functional Significance and Modifications through Learning
Segura, Diego Fernando; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Devescovi, Francisco; Bachmann, Guillermo Enrique; Corley, Juan Carlos; Ovruski Alderete, Sergio Marcelo; Cladera, Jorge Luis (2016)Parasitoids searching for polyphagous herbivores can find their hosts in a variety of habitats. Under this scenario, chemical cues from the host habitat (not related to the host) represent poor indicators of host location. ... -
Male Sexual Behavior and Pheromone Emission Is Enhanced by Exposure to Guava Fruit Volatiles in Anastrepha fraterculus
Bachmann, Guillermo Enrique; Segura, Diego Fernando; Devescovi, Francisco; Juárez, María Laura; Ruiz, María Josefina; Vera, María Teresa; Cladera, Jorge Luis; Teal, Peter E.A.; Fernandez, Patricia Carina (Plos One, 2015-04)Background: Plant chemicals can affect reproductive strategies of tephritid fruit flies by influencing sex pheromone communication and increasing male mating competitiveness. Objective and Methodology: We explored whether ... -
Male sexual enhancement after methoprene treatment in Anastrepha fraterculus (Diptera: Tephritidae) : a sustained response that does not fade away after sexual maturation
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Cladera, Jorge Luis; Fernandez, Patricia Carina; Vera, María Teresa; Teal, Peter E.A.; Segura, Diego Fernando (2017)The juvenile hormone (JH) of insects triggers physiological changes related to reproduction in adults of both sexes. Methoprene is a sesquiterpene with some effects that are analogous to those of JH. Treatments with ... -
Mate choice confers direct benefits to females of Anastrepha fraterculus (Diptera: Tephritidae)
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Milla, Fabian Horacio; Shelly, Todd E.; Cladera, Jorge Luis; Fernandez, Patricia; Vera, María Teresa; Segura, Diego Fernando (Public Library of Science, 2019-06)Exposure to plant compounds and analogues of juvenile hormone (JH) increase male mating success in several species of tephritid fruit flies. Most of these species exhibit a lek mating system, characterized by active female ... -
Mating-induced changes in responses of female Queensland fruit fly to male pheromones and fruit : a mechanism for mating-induced sexual inhibition
Devescovi, Francisco; Hurtado, Juan; Taylor, Phillip W. (Elsevier, 2021-03)In order to reproduce, female tephritid fruit flies need both mates for fertilization and fruit for oviposition. Virgin females are prone to mating and approach males, attracted by their pheromones. Mated females, however, ... -
Ongoing speciation within the Anastrepha fraterculus cryptic species complex: the case of the Andean morphotype
Devescovi, Francisco; Abraham, Solana; Roriz, Alzira K.P.; Nolazco, Norma; Castañeda, Rosario; Tadeo, Eduardo; Caceres, Carlos; Segura, Diego Fernando; Vera, María Teresa; Joachim-Bravo, Iara; Canal, Nelson; Rull Gabayet, Juan Antonio (Wiley, 2014-09)The Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) cryptic species complex is currently composed of seven taxonomically recognized morphotypes. Both, pre‐ and post‐zygotic isolation has been documented among ... -
Patterns of resource distribution among conspecific larvae in two fruit fly species : Anastrepha fraterculus and Ceratitis capitata (diptera: tephritidae)
Liendo, María Clara; Devescovi, Francisco; Boca, Rosa Teresa; Cladera, Jorge Luis; Vera, María Teresa; Segura, Diego Fernando (2016)1 Anastrepha fraterculus (Diptera: Tephritidae) and Ceratitis capitata (Diptera: Tephritidae) are fruit fly pests whose larvae are frequently found sharing the same fruit with conspecifics. Because larvae are incapable of ... -
Remating behavior in Anastrepha fraterculus (Diptera: Tephritidae) females is affected by male juvenile hormone analog treatment but not by male sterilization
Abraham, Solana; Liendo, María Clara; Devescovi, Francisco; Peralta, Patricia Angelica; Yusef, Verónica; Ruiz, María Josefina; Cladera, Jorge Luis; Vera, Maria Teresa; Segura, Diego Fernando (Cambridge University Press, 2013-06)The sterile insect technique (SIT) has been proposed as an area-wide method to control the South American fruit fly, Anastrepha fraterculus (Wiedemann). This technique requires sterilization, a procedure that affects, along ...