Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)

The density-dependence in parasitism by the robber fly Mallophora ruficauda (Diptera: Asilidae) on scarab beetle larvae (Coleoptera: Scarabaeidae) populations was studied in the present research. Mallophora ruficauda is a pestiferous species common in the open grasslands of the Pampas region of Sout...

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Autores principales:	Castelo, Marcela Karina, Corley, Juan Carlos
Publicado:	2010
Materias:	Parasitoid Scarab beetle larvae Scarabaeidae Spatial scale beetle density dependence fly grassland host specificity host-parasitoid interaction parasitism spatial analysis Argentina Buenos Aires [Argentina] Entre Rios Pampas Asilidae Coleoptera Cyclocephala Diptera Hexapoda Mallophora ruficauda Poaceae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14429985_v35_n1_p72_Castelo http://hdl.handle.net/20.500.12110/paper_14429985_v35_n1_p72_Castelo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14429985_v35_n1_p72_Castelo
record_format	dspace
spelling	paper:paper_14429985_v35_n1_p72_Castelo2023-06-08T16:16:05Z Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae) Castelo, Marcela Karina Corley, Juan Carlos Parasitoid Scarab beetle larvae Scarabaeidae Spatial scale beetle density dependence fly grassland host specificity host-parasitoid interaction parasitism spatial analysis Argentina Buenos Aires [Argentina] Entre Rios Pampas Asilidae Coleoptera Cyclocephala Diptera Hexapoda Mallophora ruficauda Poaceae Scarabaeidae The density-dependence in parasitism by the robber fly Mallophora ruficauda (Diptera: Asilidae) on scarab beetle larvae (Coleoptera: Scarabaeidae) populations was studied in the present research. Mallophora ruficauda is a pestiferous species common in the open grasslands of the Pampas region of South America. Adults are predators of insects and larvae are solitary parasitoids of third instar larvae of several species of scarab beetle (Coleoptera: Scarabaeidae). In contrast with most studied host-parasitoid interactions, host searching by M. ruficauda is carried out by both larvae and adults. Typically, robber fly females lay eggs on tall grasses from where larvae drop to the ground, and attack hosts which are buried in the soil. We carried out our study at two spatial scales close to 14 apiaries located in the provinces of Buenos Aires and Entre Ríos (Argentina). We found that parasitism is density-independent at the larger spatial scale and inversely density-dependent at the smaller one. We also found that M. ruficauda selects Cyclocephala signaticollis among several scarab beetle species. Specificity is observed both at large and small spatial scales. We discuss the implications of both host specificity and host searching behaviour on the observed parasitism patterns. © 2010 Ecological Society of Australia. Fil:Castelo, M.K. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Corley, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14429985_v35_n1_p72_Castelo http://hdl.handle.net/20.500.12110/paper_14429985_v35_n1_p72_Castelo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Parasitoid Scarab beetle larvae Scarabaeidae Spatial scale beetle density dependence fly grassland host specificity host-parasitoid interaction parasitism spatial analysis Argentina Buenos Aires [Argentina] Entre Rios Pampas Asilidae Coleoptera Cyclocephala Diptera Hexapoda Mallophora ruficauda Poaceae Scarabaeidae
spellingShingle	Parasitoid Scarab beetle larvae Scarabaeidae Spatial scale beetle density dependence fly grassland host specificity host-parasitoid interaction parasitism spatial analysis Argentina Buenos Aires [Argentina] Entre Rios Pampas Asilidae Coleoptera Cyclocephala Diptera Hexapoda Mallophora ruficauda Poaceae Scarabaeidae Castelo, Marcela Karina Corley, Juan Carlos Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
topic_facet	Parasitoid Scarab beetle larvae Scarabaeidae Spatial scale beetle density dependence fly grassland host specificity host-parasitoid interaction parasitism spatial analysis Argentina Buenos Aires [Argentina] Entre Rios Pampas Asilidae Coleoptera Cyclocephala Diptera Hexapoda Mallophora ruficauda Poaceae Scarabaeidae
description	The density-dependence in parasitism by the robber fly Mallophora ruficauda (Diptera: Asilidae) on scarab beetle larvae (Coleoptera: Scarabaeidae) populations was studied in the present research. Mallophora ruficauda is a pestiferous species common in the open grasslands of the Pampas region of South America. Adults are predators of insects and larvae are solitary parasitoids of third instar larvae of several species of scarab beetle (Coleoptera: Scarabaeidae). In contrast with most studied host-parasitoid interactions, host searching by M. ruficauda is carried out by both larvae and adults. Typically, robber fly females lay eggs on tall grasses from where larvae drop to the ground, and attack hosts which are buried in the soil. We carried out our study at two spatial scales close to 14 apiaries located in the provinces of Buenos Aires and Entre Ríos (Argentina). We found that parasitism is density-independent at the larger spatial scale and inversely density-dependent at the smaller one. We also found that M. ruficauda selects Cyclocephala signaticollis among several scarab beetle species. Specificity is observed both at large and small spatial scales. We discuss the implications of both host specificity and host searching behaviour on the observed parasitism patterns. © 2010 Ecological Society of Australia.
author	Castelo, Marcela Karina Corley, Juan Carlos
author_facet	Castelo, Marcela Karina Corley, Juan Carlos
author_sort	Castelo, Marcela Karina
title	Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
title_short	Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
title_full	Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
title_fullStr	Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
title_full_unstemmed	Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)
title_sort	spatial density-dependent parasitism and specificity in the robber fly mallophora ruficauda (diptera: asilidae)
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14429985_v35_n1_p72_Castelo http://hdl.handle.net/20.500.12110/paper_14429985_v35_n1_p72_Castelo
work_keys_str_mv	AT castelomarcelakarina spatialdensitydependentparasitismandspecificityintherobberflymallophoraruficaudadipteraasilidae AT corleyjuancarlos spatialdensitydependentparasitismandspecificityintherobberflymallophoraruficaudadipteraasilidae
_version_	1768544881312006144

Spatial density-dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)

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