The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species

Abstract Harmonia axyridis (Pallas) has invaded most continents in the world, including South America. In Chile, it became invasive after 2010, turning into a dominant species in coccinellid guilds in alfalfa crops, where it coexists with the introduced species Hippodamia variegata (Goeze) and the n...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Romero,Violeta, Zaviezo,Tania, Grez,Audrey A.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal 2020
Materias:	Dinocampus coccinellae Eriopis chilensis Hippodamia variegata ladybird beetles natural enemies
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000300312
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S2452-57312020000300312
record_format	dspace
spelling	oai:scielo:S2452-573120200003003122021-01-21The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident speciesRomero,VioletaZaviezo,TaniaGrez,Audrey A. Dinocampus coccinellae Eriopis chilensis Hippodamia variegata ladybird beetles natural enemies Abstract Harmonia axyridis (Pallas) has invaded most continents in the world, including South America. In Chile, it became invasive after 2010, turning into a dominant species in coccinellid guilds in alfalfa crops, where it coexists with the introduced species Hippodamia variegata (Goeze) and the native species Eriopis chilensis Hofmann, the populations of which declined after the invasion of H. axyridis. One of the mechanisms attributed to the success of invasive species is the enemy release hypothesis (ERH), which predicts that natural enemies will have a lesser impact on the invasive species in the newly invaded areas than on resident species. Dinocampus coccinellae (Hymenoptera: Braconidae) is a cosmopolitan parasitoid of coccinellids, which vary in their suitability to parasitism according to species and location. The present study evaluated whether H. axyridis is a less suitable host than H. variegata and E. chilensis for D. coccinellae by assessing each step in the parasitism process, from oviposition to adult emergence in field and laboratory conditions. In the field, successful parasitism in H. axyridis (7%) was significantly lower than in H. variegata (33%) and E. chilensis (36%). H. axyridis was also the only species in which failed parasitoid larval development was greater than successful parasitism (adult emergence). In the laboratory, D. coccinellae never successfully oviposited in H. axyridis, while it did in the other two species. These results suggest that in Chile, H. axyridis is a less suitable host than the resident species for D. coccinellae. This mechanism, among others, may explain the dominance of this species in this early stage of invasion.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería ForestalInternational journal of agriculture and natural resources v.47 n.3 20202020-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000300312en10.7764/ijanr.v47i3.2239
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dinocampus coccinellae Eriopis chilensis Hippodamia variegata ladybird beetles natural enemies
spellingShingle	Dinocampus coccinellae Eriopis chilensis Hippodamia variegata ladybird beetles natural enemies Romero,Violeta Zaviezo,Tania Grez,Audrey A. The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
description	Abstract Harmonia axyridis (Pallas) has invaded most continents in the world, including South America. In Chile, it became invasive after 2010, turning into a dominant species in coccinellid guilds in alfalfa crops, where it coexists with the introduced species Hippodamia variegata (Goeze) and the native species Eriopis chilensis Hofmann, the populations of which declined after the invasion of H. axyridis. One of the mechanisms attributed to the success of invasive species is the enemy release hypothesis (ERH), which predicts that natural enemies will have a lesser impact on the invasive species in the newly invaded areas than on resident species. Dinocampus coccinellae (Hymenoptera: Braconidae) is a cosmopolitan parasitoid of coccinellids, which vary in their suitability to parasitism according to species and location. The present study evaluated whether H. axyridis is a less suitable host than H. variegata and E. chilensis for D. coccinellae by assessing each step in the parasitism process, from oviposition to adult emergence in field and laboratory conditions. In the field, successful parasitism in H. axyridis (7%) was significantly lower than in H. variegata (33%) and E. chilensis (36%). H. axyridis was also the only species in which failed parasitoid larval development was greater than successful parasitism (adult emergence). In the laboratory, D. coccinellae never successfully oviposited in H. axyridis, while it did in the other two species. These results suggest that in Chile, H. axyridis is a less suitable host than the resident species for D. coccinellae. This mechanism, among others, may explain the dominance of this species in this early stage of invasion.
author	Romero,Violeta Zaviezo,Tania Grez,Audrey A.
author_facet	Romero,Violeta Zaviezo,Tania Grez,Audrey A.
author_sort	Romero,Violeta
title	The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
title_short	The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
title_full	The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
title_fullStr	The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
title_full_unstemmed	The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species
title_sort	invasive coccinellid harmonia axyridis (coleoptera: coccinellidae) is a less suitable host for parasitism than resident species
publisher	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000300312
work_keys_str_mv	AT romerovioleta theinvasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies AT zaviezotania theinvasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies AT grezaudreya theinvasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies AT romerovioleta invasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies AT zaviezotania invasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies AT grezaudreya invasivecoccinellidharmoniaaxyridiscoleopteracoccinellidaeisalesssuitablehostforparasitismthanresidentspecies
_version_	1714207473136566272

The invasive coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) is a less suitable host for parasitism than resident species

Ejemplares similares