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Intrinsic competition between Diachasmimorpha longicaudata and three native species of parasitoids (Hymenoptera: Braconidae: Opiinae) of Anastrepha (Diptera: Tephritidae) fruit flies under laboratory conditions

Murillo Cuevas, Félix David [autor] | Montoya Gerardo, Pablo Jesús [autor] | Cabrera Mireles, Héctor [autor] | Barrera, Juan F [autor] | Liedo Fernández, Pablo [autor].
Tipo de material: Artículo
 en línea Artículo en línea Tema(s): Anastrepha ludens | Anastrepha obliqua | Moscas de la fruta | Superparasitismo | Diachasmimorpha longicaudata | Doryctobracon crawfordi | Utetes anastrephae | Opius hirtus | Competencia (Biología) | Agentes biológicos para el control de plagasTema(s) en inglés: Anastrepha ludens | Anastrepha obliqua | Fruit flies | Superparasitism | Diachasmimorpha longicaudata | Doryctobracon crawfordi | Utetes anastrephae | Opius hirtus | Interspecific competition | Biological pest control agentsNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Biocontrol Science and Technology. volumen 29, número 8 (2019), páginas 757-772. --ISSN: 0958-3157Número de sistema: 33105Resumen:
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The effect of intrinsic competition between the exotic parasitoid Diachasmimorpha longicaudata (Ashmead) and the native species Doryctobracon crawfordi (Viereck), Utetes anastrephae (Viereck) and Opius hirtus (Fischer) (all Braconidae: Opiinae) was studied under laboratory conditions. Each native species and D. longicaudata acted as both a resident and an invader, and all species were introduced to the host simultaneously. Diachasmimorpha longicaudata was found to be the most competitive species because it achieved the highest parasitism percentage under all the experimental conditions, but it was also negatively affected by the presence and parasitic activity of the native parasitoids. Utetes anastrephae was the only species that maintained its parasitic rate when all species attacked the available hosts simultaneously. The emergence probability of a female D. longicaudata was positively associated with the increase in the number of scars on the cuticle of the host pupa, but this association was not observed for the native species. It was concluded that D. longicaudata is an intrinsic competitor that is superior to D. crawfordi, U. anastrephae and O. hirtus, whether acting as a resident or an invader, producing a female-biased sex ratio in all the evaluation conditions. Utetes anastrephae was the native species that was least affected by the competitive presence of D. longicaudata, which suggests that it could be used as a complementary biological control agent for Anastrepha fruit flies.

Recurso en línea: https://www.tandfonline.com/doi/full/10.1080/09583157.2019.1597333
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The effect of intrinsic competition between the exotic parasitoid Diachasmimorpha longicaudata (Ashmead) and the native species Doryctobracon crawfordi (Viereck), Utetes anastrephae (Viereck) and Opius hirtus (Fischer) (all Braconidae: Opiinae) was studied under laboratory conditions. Each native species and D. longicaudata acted as both a resident and an invader, and all species were introduced to the host simultaneously. Diachasmimorpha longicaudata was found to be the most competitive species because it achieved the highest parasitism percentage under all the experimental conditions, but it was also negatively affected by the presence and parasitic activity of the native parasitoids. Utetes anastrephae was the only species that maintained its parasitic rate when all species attacked the available hosts simultaneously. The emergence probability of a female D. longicaudata was positively associated with the increase in the number of scars on the cuticle of the host pupa, but this association was not observed for the native species. It was concluded that D. longicaudata is an intrinsic competitor that is superior to D. crawfordi, U. anastrephae and O. hirtus, whether acting as a resident or an invader, producing a female-biased sex ratio in all the evaluation conditions. Utetes anastrephae was the native species that was least affected by the competitive presence of D. longicaudata, which suggests that it could be used as a complementary biological control agent for Anastrepha fruit flies. eng

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