Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)

Autores
Sanchez, Norma Elba; Pereyra, Patricia Cecilia; Luna, María Gabriela
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We examined the interaction between the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), a key pest of tomato crops in South America, and its main solitary larval parasitoid, Pseudapanteles dignus (Muesebeck) (Hymenoptera: Braconidae). The pattern of parasitism of T. absoluta by the parasitoid was studied at three scales on tomato crops: plant, leaf, and leaflet. Host density, spatial distributions of both host and parasitoid, percentages of parasitism, variation in the probability and risk of parasitism in relation to host density, and the spatial density dependence were assessed in a horticultural region in Argentina. The spatial distribution of T. absoluta was clumped at all sites and scales, whereas that of P. dignus was much more variable, fitting to negative, positive binomial distributions and to Poisson series. Percentages of parasitism were as follows: site 1,17.06%; site 2,27.53%; site 3,26.47%; site 4,45.95%. Parasitoid aggregation in relation to host density was found at leaf and leaflet scales. However, the proportion of parasitized hosts was independent of host density. The variability of parasitism rates exhibited at the three spatial scales seems to result in partial refuges for the host, which might contribute to the persistence of the interaction between host and parasitoid. We discuss our field observations in relation to ecological theory and its potential application to the biological control of T. absoluta on tomato. © 2009 Entomological Society of America.
Fil: Sanchez, Norma Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Fil: Pereyra, Patricia Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Fil: Luna, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Materia
BIOLOGICAL CONTROL
HOST-PARASITOID INTERACTION
LYCOPERSICON ESCULENTUM
SPATIAL SCALES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/129541
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)Sanchez, Norma ElbaPereyra, Patricia CeciliaLuna, María GabrielaBIOLOGICAL CONTROLHOST-PARASITOID INTERACTIONLYCOPERSICON ESCULENTUMSPATIAL SCALEShttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4We examined the interaction between the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), a key pest of tomato crops in South America, and its main solitary larval parasitoid, Pseudapanteles dignus (Muesebeck) (Hymenoptera: Braconidae). The pattern of parasitism of T. absoluta by the parasitoid was studied at three scales on tomato crops: plant, leaf, and leaflet. Host density, spatial distributions of both host and parasitoid, percentages of parasitism, variation in the probability and risk of parasitism in relation to host density, and the spatial density dependence were assessed in a horticultural region in Argentina. The spatial distribution of T. absoluta was clumped at all sites and scales, whereas that of P. dignus was much more variable, fitting to negative, positive binomial distributions and to Poisson series. Percentages of parasitism were as follows: site 1,17.06%; site 2,27.53%; site 3,26.47%; site 4,45.95%. Parasitoid aggregation in relation to host density was found at leaf and leaflet scales. However, the proportion of parasitized hosts was independent of host density. The variability of parasitism rates exhibited at the three spatial scales seems to result in partial refuges for the host, which might contribute to the persistence of the interaction between host and parasitoid. We discuss our field observations in relation to ecological theory and its potential application to the biological control of T. absoluta on tomato. © 2009 Entomological Society of America.Fil: Sanchez, Norma Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaFil: Pereyra, Patricia Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaFil: Luna, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaEntomological Society of America2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/129541Sanchez, Norma Elba; Pereyra, Patricia Cecilia; Luna, María Gabriela; Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae); Entomological Society of America; Environmental Entomology; 38; 2; 4-2009; 365-3740046-225XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1603/022.038.0208info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ee/article-abstract/38/2/365/523736info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:07Zoai:ri.conicet.gov.ar:11336/129541instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:06:07.495CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
title Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
spellingShingle Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
Sanchez, Norma Elba
BIOLOGICAL CONTROL
HOST-PARASITOID INTERACTION
LYCOPERSICON ESCULENTUM
SPATIAL SCALES
title_short Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
title_full Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
title_fullStr Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
title_full_unstemmed Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
title_sort Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae)
dc.creator.none.fl_str_mv Sanchez, Norma Elba
Pereyra, Patricia Cecilia
Luna, María Gabriela
author Sanchez, Norma Elba
author_facet Sanchez, Norma Elba
Pereyra, Patricia Cecilia
Luna, María Gabriela
author_role author
author2 Pereyra, Patricia Cecilia
Luna, María Gabriela
author2_role author
author
dc.subject.none.fl_str_mv BIOLOGICAL CONTROL
HOST-PARASITOID INTERACTION
LYCOPERSICON ESCULENTUM
SPATIAL SCALES
topic BIOLOGICAL CONTROL
HOST-PARASITOID INTERACTION
LYCOPERSICON ESCULENTUM
SPATIAL SCALES
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv We examined the interaction between the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), a key pest of tomato crops in South America, and its main solitary larval parasitoid, Pseudapanteles dignus (Muesebeck) (Hymenoptera: Braconidae). The pattern of parasitism of T. absoluta by the parasitoid was studied at three scales on tomato crops: plant, leaf, and leaflet. Host density, spatial distributions of both host and parasitoid, percentages of parasitism, variation in the probability and risk of parasitism in relation to host density, and the spatial density dependence were assessed in a horticultural region in Argentina. The spatial distribution of T. absoluta was clumped at all sites and scales, whereas that of P. dignus was much more variable, fitting to negative, positive binomial distributions and to Poisson series. Percentages of parasitism were as follows: site 1,17.06%; site 2,27.53%; site 3,26.47%; site 4,45.95%. Parasitoid aggregation in relation to host density was found at leaf and leaflet scales. However, the proportion of parasitized hosts was independent of host density. The variability of parasitism rates exhibited at the three spatial scales seems to result in partial refuges for the host, which might contribute to the persistence of the interaction between host and parasitoid. We discuss our field observations in relation to ecological theory and its potential application to the biological control of T. absoluta on tomato. © 2009 Entomological Society of America.
Fil: Sanchez, Norma Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Fil: Pereyra, Patricia Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Fil: Luna, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
description We examined the interaction between the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), a key pest of tomato crops in South America, and its main solitary larval parasitoid, Pseudapanteles dignus (Muesebeck) (Hymenoptera: Braconidae). The pattern of parasitism of T. absoluta by the parasitoid was studied at three scales on tomato crops: plant, leaf, and leaflet. Host density, spatial distributions of both host and parasitoid, percentages of parasitism, variation in the probability and risk of parasitism in relation to host density, and the spatial density dependence were assessed in a horticultural region in Argentina. The spatial distribution of T. absoluta was clumped at all sites and scales, whereas that of P. dignus was much more variable, fitting to negative, positive binomial distributions and to Poisson series. Percentages of parasitism were as follows: site 1,17.06%; site 2,27.53%; site 3,26.47%; site 4,45.95%. Parasitoid aggregation in relation to host density was found at leaf and leaflet scales. However, the proportion of parasitized hosts was independent of host density. The variability of parasitism rates exhibited at the three spatial scales seems to result in partial refuges for the host, which might contribute to the persistence of the interaction between host and parasitoid. We discuss our field observations in relation to ecological theory and its potential application to the biological control of T. absoluta on tomato. © 2009 Entomological Society of America.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/129541
Sanchez, Norma Elba; Pereyra, Patricia Cecilia; Luna, María Gabriela; Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae); Entomological Society of America; Environmental Entomology; 38; 2; 4-2009; 365-374
0046-225X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/129541
identifier_str_mv Sanchez, Norma Elba; Pereyra, Patricia Cecilia; Luna, María Gabriela; Spatial patterns of parasitism of the solitary parasitoid pseudapanteles dignus (Hymenoptera: Braconidae) on Tuta absolute (Lepidoptera: Gelechiidae); Entomological Society of America; Environmental Entomology; 38; 2; 4-2009; 365-374
0046-225X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1603/022.038.0208
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ee/article-abstract/38/2/365/523736
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Entomological Society of America
publisher.none.fl_str_mv Entomological Society of America
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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