Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness
Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is a generalist larval-prepupal parasitoid of true fruit flies (Diptera: Tephritidae). During host-seeking, females use visual information to locate the habitat of the host (fruit of various species). Previous studies have shown that f...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/17298 https://onlinelibrary.wiley.com/doi/10.1111/eea.13408 https://doi.org/10.1111/eea.13408 |
| _version_ | 1855485927405649920 |
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| author | Nussenbaum, Ana Laura Devescovi, Francisco Bachmann, Guillermo Enrique Pacelli, Franco Garbalena, Micaela Soledad Segura, Diego Fernando |
| author_browse | Bachmann, Guillermo Enrique Devescovi, Francisco Garbalena, Micaela Soledad Nussenbaum, Ana Laura Pacelli, Franco Segura, Diego Fernando |
| author_facet | Nussenbaum, Ana Laura Devescovi, Francisco Bachmann, Guillermo Enrique Pacelli, Franco Garbalena, Micaela Soledad Segura, Diego Fernando |
| author_sort | Nussenbaum, Ana Laura |
| collection | INTA Digital |
| description | Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is a generalist larval-prepupal parasitoid of true fruit flies (Diptera: Tephritidae). During host-seeking, females use visual information to locate the habitat of the host (fruit of various species). Previous studies have shown that females associate the colour of the host habitat with the availability of hosts through associative learning. In this study, we aimed to understand how this process is reinforced as the number of positive experiences increases and also how stable this association is, when the positive experiences cease. Additionally, under the hypothesis that associative learning has adaptive value, we evaluated the benefits of learning in two contexts: one in which host larvae are still associated with the learned colour and one where larvae are associated with a different colour. Repeated exposure to the unconditional stimulus for 1, 3, 5, and 7 consecutive training bouts influenced the preference response, as the percentage of females that preferred the stimulus increases with the number of training sessions. This preference seems to be reversible, as we found that the memory duration declines as time since the last training bout increased. The results obtained regarding the benefits of learning showed that females that learned a particular colour associated with the host, spent more time in that colour, made more oviposition attempts, and produced more offspring compared to females that learned a colour that is no longer associated with the host. This suggests that learning should not be fixed, and females would benefit from adjusting their behaviour to host availability. Such colour would allow females to find their host more efficiently, by associating cues that lead to host finding but also modifying their response when the cues are no longer associated with a reward, which seems a reasonable strategy for parasitoids of polyphagous hosts infesting ephemeral and changing habitats, such as fruit of different species. |
| format | Artículo |
| id | INTA17298 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA172982024-04-05T10:25:44Z Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness Nussenbaum, Ana Laura Devescovi, Francisco Bachmann, Guillermo Enrique Pacelli, Franco Garbalena, Micaela Soledad Segura, Diego Fernando Braconidae Diptera Hymenoptera Learning Parasitoids Tephritidae Visual Stimuli Biosteres longicaudatus Females Aprendizaje Parasitoides Estímulos Visuales Hembra Diachasmimorpha longicaudata Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is a generalist larval-prepupal parasitoid of true fruit flies (Diptera: Tephritidae). During host-seeking, females use visual information to locate the habitat of the host (fruit of various species). Previous studies have shown that females associate the colour of the host habitat with the availability of hosts through associative learning. In this study, we aimed to understand how this process is reinforced as the number of positive experiences increases and also how stable this association is, when the positive experiences cease. Additionally, under the hypothesis that associative learning has adaptive value, we evaluated the benefits of learning in two contexts: one in which host larvae are still associated with the learned colour and one where larvae are associated with a different colour. Repeated exposure to the unconditional stimulus for 1, 3, 5, and 7 consecutive training bouts influenced the preference response, as the percentage of females that preferred the stimulus increases with the number of training sessions. This preference seems to be reversible, as we found that the memory duration declines as time since the last training bout increased. The results obtained regarding the benefits of learning showed that females that learned a particular colour associated with the host, spent more time in that colour, made more oviposition attempts, and produced more offspring compared to females that learned a colour that is no longer associated with the host. This suggests that learning should not be fixed, and females would benefit from adjusting their behaviour to host availability. Such colour would allow females to find their host more efficiently, by associating cues that lead to host finding but also modifying their response when the cues are no longer associated with a reward, which seems a reasonable strategy for parasitoids of polyphagous hosts infesting ephemeral and changing habitats, such as fruit of different species. Instituto de Genética Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Nussenbaum, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Nussenbaum, Ana Laura. Universidad del Salvador. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Devescovi, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Devescovi, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Devescovi, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bachmann, Guillermo Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Bachmann, Guillermo Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Bachmann, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pacelli, Franco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Pacelli, Franco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Pacelli, Franco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Garbalena, Micaela Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Garbalena, Micaela Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Garbalena, Micaela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Segura, Diego Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Segura, Diego Fernando. Universidad del Salvador. Facultad de Ciencias Agrarias y Veterinarias; Argentina 2024-04-05T10:07:01Z 2024-04-05T10:07:01Z 2024-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/17298 https://onlinelibrary.wiley.com/doi/10.1111/eea.13408 1570-7458 0013-8703 https://doi.org/10.1111/eea.13408 eng info:eu-repograntAgreement/INTA/2019-PD-E4-I079-001, Genética, genómica y ecología de insectos de importancia agronómica como insumo para el desarrollo de estrategias sustentables de control plagas info:eu-repograntAgreement/INTA/2019-PE-E4-I074-001, Manejo Integrado de Plagas info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Entomologia Experimentalis et Applicata : 1-9 (First published: 30 January 2024) |
| spellingShingle | Braconidae Diptera Hymenoptera Learning Parasitoids Tephritidae Visual Stimuli Biosteres longicaudatus Females Aprendizaje Parasitoides Estímulos Visuales Hembra Diachasmimorpha longicaudata Nussenbaum, Ana Laura Devescovi, Francisco Bachmann, Guillermo Enrique Pacelli, Franco Garbalena, Micaela Soledad Segura, Diego Fernando Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title | Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title_full | Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title_fullStr | Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title_full_unstemmed | Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title_short | Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness |
| title_sort | associative learning of visual cues in the fruit fly parasitoid diachasmimorpha longicaudata temporal dynamics and potential consequences on females fitness |
| topic | Braconidae Diptera Hymenoptera Learning Parasitoids Tephritidae Visual Stimuli Biosteres longicaudatus Females Aprendizaje Parasitoides Estímulos Visuales Hembra Diachasmimorpha longicaudata |
| url | http://hdl.handle.net/20.500.12123/17298 https://onlinelibrary.wiley.com/doi/10.1111/eea.13408 https://doi.org/10.1111/eea.13408 |
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