Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition
1. Unravelling the strength and modes of interspecific interactions between resident and introduced species is necessary in order to understand the basis of their coexistence or the displacement of the former by the latter. In Argentina, the indigenous Tephritidae fly Anastrepha fraterculus overl...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/2229 https://doi.org/10.1111/een.12501 |
| _version_ | 1855034926606319616 |
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| author | Liendo, María Clara Parreño, María Alejandra Cladera, Jorge Luis Vera, María Teresa Segura, Diego Fernando |
| author_browse | Cladera, Jorge Luis Liendo, María Clara Parreño, María Alejandra Segura, Diego Fernando Vera, María Teresa |
| author_facet | Liendo, María Clara Parreño, María Alejandra Cladera, Jorge Luis Vera, María Teresa Segura, Diego Fernando |
| author_sort | Liendo, María Clara |
| collection | INTA Digital |
| description | 1. Unravelling the strength and modes of interspecific interactions between
resident and introduced species is necessary in order to understand the basis of their
coexistence or the displacement of the former by the latter. In Argentina, the indigenous
Tephritidae fly Anastrepha fraterculus overlaps its distribution and host fruit with the
introduced species Ceratitis capitata.
2. This study focused on the relative strength of intra- and interspecific competition
during the larval stage as a potential factor supporting coexistence. Classical competition
experiments (addition and substitution) were conducted between larvae of the two
species reared in artificial larval diet. The study evaluated whether a temporal separation
between oviposition events affects the outcome of the competition.
3. When both species started to consume the resource at the same time, A. fraterculus
experienced a negative effect in larval survival, pupal weight and duration of larval stage,
while for C. capitata, pupal weight decreased. When A. fraterculus started feeding 1 day
earlier than C. capitata, the negative effects became milder, and when the temporal
separation increased, these effects were reversed. Substitution experiments showed an
increase in pupal weight when larvae had to share the resource with heterospecific larvae,
and showed negative effects suffered for both species when they shared the resource with
conspecific individuals.
4. These results suggest that intraspecific competition is stronger than interspecific
competition, and a differential oviposition preference could generate an asynchrony
of these species in nature. Such mechanisms could favour coexistence between A.
fraterculus and C. capitata in an environment previously occupied only by the former. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2229 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22292019-01-22T18:34:57Z Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition Liendo, María Clara Parreño, María Alejandra Cladera, Jorge Luis Vera, María Teresa Segura, Diego Fernando Tephritidae Competencia Interespecífica Competencia Intraespecífica Especie Invasiva Larvas Larvae Invasive Species Intraspecific Competition Interspecific Competition Mosca de la Fruta 1. Unravelling the strength and modes of interspecific interactions between resident and introduced species is necessary in order to understand the basis of their coexistence or the displacement of the former by the latter. In Argentina, the indigenous Tephritidae fly Anastrepha fraterculus overlaps its distribution and host fruit with the introduced species Ceratitis capitata. 2. This study focused on the relative strength of intra- and interspecific competition during the larval stage as a potential factor supporting coexistence. Classical competition experiments (addition and substitution) were conducted between larvae of the two species reared in artificial larval diet. The study evaluated whether a temporal separation between oviposition events affects the outcome of the competition. 3. When both species started to consume the resource at the same time, A. fraterculus experienced a negative effect in larval survival, pupal weight and duration of larval stage, while for C. capitata, pupal weight decreased. When A. fraterculus started feeding 1 day earlier than C. capitata, the negative effects became milder, and when the temporal separation increased, these effects were reversed. Substitution experiments showed an increase in pupal weight when larvae had to share the resource with heterospecific larvae, and showed negative effects suffered for both species when they shared the resource with conspecific individuals. 4. These results suggest that intraspecific competition is stronger than interspecific competition, and a differential oviposition preference could generate an asynchrony of these species in nature. Such mechanisms could favour coexistence between A. fraterculus and C. capitata in an environment previously occupied only by the former. Fil: Liendo, María Clara. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética. Laboratorio de Insectos de Importancia Agronómica; Argentina. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina Fil: Parreño, María Alejandra Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética. Laboratorio de Insectos de Importancia Agronómica; Argentina. University of Zurich. Department of Evolutionary Biology and Environmental Studies; Suiza Fil: Cladera, Jorge Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética. Laboratorio de Insectos de Importancia Agronómica; Argentina Fil: Vera, Maria Teresa. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética. Laboratorio de Insectos de Importancia Agronómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2018-04-12T14:29:42Z 2018-04-12T14:29:42Z 2018-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2229 1365-2311 https://doi.org/10.1111/een.12501 eng info:eu-repo/semantics/restrictedAccess application/pdf Ecological entomology 43 (2). (April 2018) |
| spellingShingle | Tephritidae Competencia Interespecífica Competencia Intraespecífica Especie Invasiva Larvas Larvae Invasive Species Intraspecific Competition Interspecific Competition Mosca de la Fruta Liendo, María Clara Parreño, María Alejandra Cladera, Jorge Luis Vera, María Teresa Segura, Diego Fernando Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title | Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title_full | Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title_fullStr | Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title_full_unstemmed | Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title_short | Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition |
| title_sort | coexistence between two fruit fly species is supported by the different strength of intra and interspecific competition |
| topic | Tephritidae Competencia Interespecífica Competencia Intraespecífica Especie Invasiva Larvas Larvae Invasive Species Intraspecific Competition Interspecific Competition Mosca de la Fruta |
| url | http://hdl.handle.net/20.500.12123/2229 https://doi.org/10.1111/een.12501 |
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