Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth

Autores
Franceschini, María Celeste; Hill, Martin; Fuentes Rodríguez, Daniela; Gervazoni, Paula Belén; Sabater, Lara Milena; Coetzee, Julie Angela
Año de publicación
2022
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Fil: Franceschini, María Celeste. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Franceschini, María Celeste. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Hill, Martin. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.
Fil: Fuentes Rodríguez, Daniela. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Fuentes Rodríguez, Daniela. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Gervazoni, Paula Belén. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Gervazoni, Paula Belén. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Sabater, Lara Milena. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Coetzee, Julie Angela. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.
Host specificity determination of weed biological control agents has historically relied on evidence generated through quarantine trials in the region of introduction. These trials are conservative and where possible, more research should be conducted in the region of origin. The oligophagous, semiaquatic grasshopper, Cornops aquaticum (Orthoptera: Acrididae), was released in South Africa for the biological control of Pontederia crassipes (Pontederiaceae). We conducted post-release laboratory no-choice trials, using early instar nymphs (instar I and II), later instar nymphs (instar III to VI), adult females and males, to determine fundamental host range; and gut analysis from field collected C. aquaticum to determine the ecological host range of this insect. In no-choice trials, survival rates of C. aquaticum were similar on Pistia stratiotes (Araceae), Oxycaryum cubense (Cyperaceae) and P crassipes for later stage nymphs and adults. However, under field conditions, P crassipes and the congeneric P azurea, were the only plant contents in the guts of early instar nymphs and the most abundant ones in later instar nymphs and adults. The results support the evidence that C. aquaticum is an oligophagous insect in the genus Pontederia, and that life stages should be considered when conducting host-specificity trials in externally feeding herbivore species. Diet composition of field-collected insects thus provides a better indicator of the field host range.
Materia
Insects
Entomology
Grasshopper
Herbivore species
Orthoptera
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
Institución
Universidad Nacional del Nordeste
OAI Identificador
oai:repositorio.unne.edu.ar:123456789/55321

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network_name_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
spelling Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinthFranceschini, María CelesteHill, MartinFuentes Rodríguez, DanielaGervazoni, Paula BelénSabater, Lara MilenaCoetzee, Julie AngelaInsectsEntomologyGrasshopperHerbivore speciesOrthopteraFil: Franceschini, María Celeste. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.Fil: Franceschini, María Celeste. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.Fil: Hill, Martin. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.Fil: Fuentes Rodríguez, Daniela. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.Fil: Fuentes Rodríguez, Daniela. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.Fil: Gervazoni, Paula Belén. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.Fil: Gervazoni, Paula Belén. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.Fil: Sabater, Lara Milena. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.Fil: Coetzee, Julie Angela. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.Host specificity determination of weed biological control agents has historically relied on evidence generated through quarantine trials in the region of introduction. These trials are conservative and where possible, more research should be conducted in the region of origin. The oligophagous, semiaquatic grasshopper, Cornops aquaticum (Orthoptera: Acrididae), was released in South Africa for the biological control of Pontederia crassipes (Pontederiaceae). We conducted post-release laboratory no-choice trials, using early instar nymphs (instar I and II), later instar nymphs (instar III to VI), adult females and males, to determine fundamental host range; and gut analysis from field collected C. aquaticum to determine the ecological host range of this insect. In no-choice trials, survival rates of C. aquaticum were similar on Pistia stratiotes (Araceae), Oxycaryum cubense (Cyperaceae) and P crassipes for later stage nymphs and adults. However, under field conditions, P crassipes and the congeneric P azurea, were the only plant contents in the guts of early instar nymphs and the most abundant ones in later instar nymphs and adults. The results support the evidence that C. aquaticum is an oligophagous insect in the genus Pontederia, and that life stages should be considered when conducting host-specificity trials in externally feeding herbivore species. Diet composition of field-collected insects thus provides a better indicator of the field host range.Universidad Nacional de La Plata2022-10info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfp. 569-569application/pdfFranceschini, María Celeste, et al., 2022. Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth. En: XI Congreso Argentino. XII Congreso Latinoamericano de Entomología. La Plata: Universidad Nacional de La Plata, p. 569-569.2953-4178http://repositorio.unne.edu.ar/handle/123456789/55321enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentinareponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordeste2025-09-29T14:29:33Zoai:repositorio.unne.edu.ar:123456789/55321instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712025-09-29 14:29:33.356Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse
dc.title.none.fl_str_mv Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
title Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
spellingShingle Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
Franceschini, María Celeste
Insects
Entomology
Grasshopper
Herbivore species
Orthoptera
title_short Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
title_full Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
title_fullStr Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
title_full_unstemmed Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
title_sort Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth
dc.creator.none.fl_str_mv Franceschini, María Celeste
Hill, Martin
Fuentes Rodríguez, Daniela
Gervazoni, Paula Belén
Sabater, Lara Milena
Coetzee, Julie Angela
author Franceschini, María Celeste
author_facet Franceschini, María Celeste
Hill, Martin
Fuentes Rodríguez, Daniela
Gervazoni, Paula Belén
Sabater, Lara Milena
Coetzee, Julie Angela
author_role author
author2 Hill, Martin
Fuentes Rodríguez, Daniela
Gervazoni, Paula Belén
Sabater, Lara Milena
Coetzee, Julie Angela
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Insects
Entomology
Grasshopper
Herbivore species
Orthoptera
topic Insects
Entomology
Grasshopper
Herbivore species
Orthoptera
dc.description.none.fl_txt_mv Fil: Franceschini, María Celeste. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Franceschini, María Celeste. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Hill, Martin. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.
Fil: Fuentes Rodríguez, Daniela. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Fuentes Rodríguez, Daniela. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Gervazoni, Paula Belén. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Gervazoni, Paula Belén. Centro Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Sabater, Lara Milena. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Coetzee, Julie Angela. Universidad de Rhodes. Centro de Control Biológico; República de Sudáfrica.
Host specificity determination of weed biological control agents has historically relied on evidence generated through quarantine trials in the region of introduction. These trials are conservative and where possible, more research should be conducted in the region of origin. The oligophagous, semiaquatic grasshopper, Cornops aquaticum (Orthoptera: Acrididae), was released in South Africa for the biological control of Pontederia crassipes (Pontederiaceae). We conducted post-release laboratory no-choice trials, using early instar nymphs (instar I and II), later instar nymphs (instar III to VI), adult females and males, to determine fundamental host range; and gut analysis from field collected C. aquaticum to determine the ecological host range of this insect. In no-choice trials, survival rates of C. aquaticum were similar on Pistia stratiotes (Araceae), Oxycaryum cubense (Cyperaceae) and P crassipes for later stage nymphs and adults. However, under field conditions, P crassipes and the congeneric P azurea, were the only plant contents in the guts of early instar nymphs and the most abundant ones in later instar nymphs and adults. The results support the evidence that C. aquaticum is an oligophagous insect in the genus Pontederia, and that life stages should be considered when conducting host-specificity trials in externally feeding herbivore species. Diet composition of field-collected insects thus provides a better indicator of the field host range.
description Fil: Franceschini, María Celeste. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
publishDate 2022
dc.date.none.fl_str_mv 2022-10
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv Franceschini, María Celeste, et al., 2022. Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth. En: XI Congreso Argentino. XII Congreso Latinoamericano de Entomología. La Plata: Universidad Nacional de La Plata, p. 569-569.
2953-4178
http://repositorio.unne.edu.ar/handle/123456789/55321
identifier_str_mv Franceschini, María Celeste, et al., 2022. Diet preference of the different life stages of the aquatic grasshopper Cornops aquaticum (Orthoptera: Acrididae) and its implications for the biológica! control of water hyacinth. En: XI Congreso Argentino. XII Congreso Latinoamericano de Entomología. La Plata: Universidad Nacional de La Plata, p. 569-569.
2953-4178
url http://repositorio.unne.edu.ar/handle/123456789/55321
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
dc.format.none.fl_str_mv application/pdf
p. 569-569
application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de La Plata
publisher.none.fl_str_mv Universidad Nacional de La Plata
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname:Universidad Nacional del Nordeste
reponame_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
collection Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname_str Universidad Nacional del Nordeste
repository.name.fl_str_mv Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste
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