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Rearing larvae of the avian nest parasite, Philornis downsi (Diptera: Muscidae), on chicken blood-based diets.

Por:

Lahuatte, Paola F

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ArtículoIdioma: Inglés Detalles de publicación: 2016Tema(s):

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598.857 21

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En: Journal of Insect Science Vol.16, no, 1 (Jun 2016), p. 1-7. Tema: Captive rearing of insect pests is necessary to understand their biology and to develop control methods. The avian nest ﬂy, Philornis downsi Dodge and Aitken, is a blood-sucking parasite during its larval stage and a serious threat to endemic birds in the Galapagos Islands where it is considered invasive. In order to procure large numbers of ﬂies for biological studies, rearing media and diets were trialed for rearing the larval stage of P. downsi under controlled conditions in the absence of its avian host. P. downsi eggs were obtained from ﬁeldcaught female ﬂies, and once eggs hatched they were reared on chicken blood for the ﬁrst 3 d. Following this, three diets were tested on second- and third-instar larvae: 1) chicken blood only; 2) chicken blood, hydrolyzed protein and dried milk powder; and 3) chicken blood, hydrolyzed protein and brewer’s yeast. Out of 385 P. downsi larvae tested, we were able to rear 50 larvae to the adult stage. The highest level of mortality was found in the ﬁrst-instar larvae. Survivorship of second- and third-instar larvae was similar irrespective of diet and diet did not signiﬁcantly inﬂuence larval or pupal development times; though larvae fed the diet with brewer’s yeast developed marginally faster. Pupal weights were similar to those of larvae that had developed on bird hosts in the ﬁeld. To our knowledge, this is the ﬁrst effective protocol for rearing a hematophagous parasitic avian ﬂy from egg to adult in the absence of a living host. Captive rearing of insect pests is necessary to understand their biology and to develop control methods. The avian nest ﬂy, Philornis downsi Dodge and Aitken, is a blood-sucking parasite during its larval stage and a serious threat to endemic birds in the Galapagos Islands where it is considered invasive. In order to procure large numbers of ﬂies for biological studies, rearing media and diets were trialed for rearing the larval stage of P. downsi under controlled conditions in the absence of its avian host. P. downsi eggs were obtained from ﬁeldcaught female ﬂies, and once eggs hatched they were reared on chicken blood for the ﬁrst 3 d. Following this, three diets were tested on second- and third-instar larvae: 1) chicken blood only; 2) chicken blood, hydrolyzed protein and dried milk powder; and 3) chicken blood, hydrolyzed protein and brewer’s yeast. Out of 385 P. downsi larvae tested, we were able to rear 50 larvae to the adult stage. The highest level of mortality was found in the ﬁrst-instar larvae. Survivorship of second- and third-instar larvae was similar irrespective of diet and diet did not signiﬁcantly inﬂuence larval or pupal development times; though larvae fed the diet with brewer’s yeast developed marginally faster. Pupal weights were similar to those of larvae that had developed on bird hosts in the ﬁeld. To our knowledge, this is the ﬁrst effective protocol for rearing a hematophagous parasitic avian ﬂy from egg to adult in the absence of a living host.

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Existencias
Imagen de cubierta	Tipo de ítem	Biblioteca actual	Biblioteca de origen	Colección	Ubicación en estantería	Signatura topográfica	Materiales especificados	Info Vol	URL	Copia número	Estado	Notas	Fecha de vencimiento	Código de barras	Reserva de ítems	Prioridad de la cola de reserva de ejemplar	Reservas para cursos
	Artículo	Corley Smith Library Artículos		Galápagos		598.857 LAH (Navegar estantería(Abre debajo))					Disponible			2016-0107
	Documento electrónico	Corley Smith Library Colección PDF		Galápagos		598.857 LAH 2016 (Navegar estantería(Abre debajo))					Disponible			2021-1970

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Previo	598.844 JIM Is the population of Floreana mockingbird Mimus trifasciatus declining? /	598.844 STE A hitchhikers guide to the Galápagos :	598.848 LIN 2015 Interactions between the avian parasite, Philornis downsi (Diptera: Muscidae) and the Galapagos Flycatcher, Myiarchus magnirostris Gould (Passeriformes: Tyrannidae).	598.857 LAH Rearing larvae of the avian nest parasite, Philornis downsi (Diptera: Muscidae), on chicken blood-based diets.	598.8665 ALA Patterns of parasite abundance and distribution in island populations of Galápagos endemic birds.	598.872 CHA Origin and population history of a recent colonizer, the yellow warbler in Galápagos and Cocos Islands /	598.872 JIM Prothonotary warbler Protonotaria citrea, a new species for the Galapagos Islands.	Siguiente

Captive rearing of insect pests is necessary to understand their biology and to develop control methods. The avian nest ﬂy, Philornis downsi Dodge and Aitken, is a blood-sucking parasite during its larval stage and a serious threat to endemic birds in the Galapagos Islands where it is considered invasive. In order to procure large
numbers of ﬂies for biological studies, rearing media and diets were trialed for rearing the larval stage of P. downsi under controlled conditions in the absence of its avian host. P. downsi eggs were obtained from ﬁeldcaught female ﬂies, and once eggs hatched they were reared on chicken blood for the ﬁrst 3 d. Following this, three diets were tested on second- and third-instar larvae: 1) chicken blood only; 2) chicken blood, hydrolyzed protein and dried milk powder; and 3) chicken blood, hydrolyzed protein and brewer’s yeast. Out of 385 P. downsi larvae tested, we were able to rear 50 larvae to the adult stage. The highest level of mortality was found in the ﬁrst-instar larvae. Survivorship of second- and third-instar larvae was similar irrespective of diet
and diet did not signiﬁcantly inﬂuence larval or pupal development times; though larvae fed the diet with brewer’s yeast developed marginally faster. Pupal weights were similar to those of larvae that had developed on bird hosts in the ﬁeld. To our knowledge, this is the ﬁrst effective protocol for rearing a hematophagous parasitic avian ﬂy from egg to adult in the absence of a living host.
Captive rearing of insect pests is necessary to understand their biology and to develop control methods. The avian nest ﬂy, Philornis downsi Dodge and Aitken, is a blood-sucking parasite during its larval stage and a serious threat to endemic birds in the Galapagos Islands where it is considered invasive. In order to procure large
numbers of ﬂies for biological studies, rearing media and diets were trialed for rearing the larval stage of P. downsi under controlled conditions in the absence of its avian host. P. downsi eggs were obtained from ﬁeldcaught female ﬂies, and once eggs hatched they were reared on chicken blood for the ﬁrst 3 d. Following this, three diets were tested on second- and third-instar larvae: 1) chicken blood only; 2) chicken blood, hydrolyzed protein and dried milk powder; and 3) chicken blood, hydrolyzed protein and brewer’s yeast. Out of 385 P. downsi larvae tested, we were able to rear 50 larvae to the adult stage. The highest level of mortality was found in the ﬁrst-instar larvae. Survivorship of second- and third-instar larvae was similar irrespective of diet
and diet did not signiﬁcantly inﬂuence larval or pupal development times; though larvae fed the diet with brewer’s yeast developed marginally faster. Pupal weights were similar to those of larvae that had developed on bird hosts in the ﬁeld. To our knowledge, this is the ﬁrst effective protocol for rearing a hematophagous parasitic avian ﬂy from egg to adult in the absence of a living host.

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