The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows

Autores
Franceschini, María Celeste; Wysiecki, María Laura de; Poi, Alicia Susana G.; Galassi, María Eugenia; Martínez, Fedra Solange
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cornops aquaticum is a widely distributed semiaquatic grasshopper in the Neotropics. The development, feeding and oviposition of C. aquaticum take place on Pontederiaceae, especially on species of Eichhornia. Several aspects of the feeding of C. aquaticum are studied because is one of the most important herbivores of the highly invasive floating Eichhornia crassipes in native areas. The aims of this paper were: (1) to quantify the amount of E. crassipes consumed by C. aquaticum, (2) to determine the growth rate and the conversion efficiency of food ingested by this grasshopper, and (3) to determine the possible effect of consumption on E. crassipes productivity. Thirty individuals from each specific age class were used in the experiment: nymphs A, nymphs B, adult males and adult females. Insects were individually confined in plastic pots with a leaf of E. crassipes. We estimated feeding by individual, consumption index (CI), relative growth rate (GR) and efficiency of conversion of ingested food to body substance (ECI). The impact of C. aquaticum consumption on E. crassipes floating meadows was assessed with the abundance of the grasshopper, and the available data on primary production of the host plant at the study site. Food intake of C. aquaticum was 11.23% of plant productivity. Food consumption, growth rate and food conversion efficiency of this grasshopper varied according to the specific age classes. Damage caused by C. aquaticum is high in comparison with the damage caused by other semiaquatic and grassland grasshoppers, however it is not enough to prevent the growth and coverage of native E. crassipes floating meadows because abundance of grasshoppers are realtively low and the growth rate and productivity of the host plant is high.
Centro de Estudios Parasitológicos y de Vectores
Materia
Ciencias Naturales
Consumption
Cornops aquaticum
Eichhornia crassipes
Floodplain
Grasshopper
Herbivory
Macrophyte productivity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/101287

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spelling The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadowsFranceschini, María CelesteWysiecki, María Laura dePoi, Alicia Susana G.Galassi, María EugeniaMartínez, Fedra SolangeCiencias NaturalesConsumptionCornops aquaticumEichhornia crassipesFloodplainGrasshopperHerbivoryMacrophyte productivity<i>Cornops aquaticum</i> is a widely distributed semiaquatic grasshopper in the Neotropics. The development, feeding and oviposition of <i>C. aquaticum</i> take place on Pontederiaceae, especially on species of <i>Eichhornia</i>. Several aspects of the feeding of <i>C. aquaticum</i> are studied because is one of the most important herbivores of the highly invasive floating <i>Eichhornia crassipes</i> in native areas. The aims of this paper were: (1) to quantify the amount of <i>E. crassipes</i> consumed by <i>C. aquaticum</i>, (2) to determine the growth rate and the conversion efficiency of food ingested by this grasshopper, and (3) to determine the possible effect of consumption on <i>E. crassipes</i> productivity. Thirty individuals from each specific age class were used in the experiment: nymphs A, nymphs B, adult males and adult females. Insects were individually confined in plastic pots with a leaf of <i>E. crassipes</i>. We estimated feeding by individual, consumption index (CI), relative growth rate (GR) and efficiency of conversion of ingested food to body substance (ECI). The impact of <i>C. aquaticum</i> consumption on <i>E. crassipes</i> floating meadows was assessed with the abundance of the grasshopper, and the available data on primary production of the host plant at the study site. Food intake of <i>C. aquaticum</i> was 11.23% of plant productivity. Food consumption, growth rate and food conversion efficiency of this grasshopper varied according to the specific age classes. Damage caused by <i>C. aquaticum</i> is high in comparison with the damage caused by other semiaquatic and grassland grasshoppers, however it is not enough to prevent the growth and coverage of native <i>E. crassipes</i> floating meadows because abundance of grasshoppers are realtively low and the growth rate and productivity of the host plant is high.Centro de Estudios Parasitológicos y de Vectores2010-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1407-1418http://sedici.unlp.edu.ar/handle/10915/101287enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/42247info:eu-repo/semantics/altIdentifier/url/https://revistas.ucr.ac.cr/index.php/rbt/article/view/3407info:eu-repo/semantics/altIdentifier/issn/0034-7744info:eu-repo/semantics/altIdentifier/doi/10.15517/rbt.v0i0.3407info:eu-repo/semantics/altIdentifier/hdl/11336/42247info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:20:56Zoai:sedici.unlp.edu.ar:10915/101287Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:20:56.68SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
title The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
spellingShingle The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
Franceschini, María Celeste
Ciencias Naturales
Consumption
Cornops aquaticum
Eichhornia crassipes
Floodplain
Grasshopper
Herbivory
Macrophyte productivity
title_short The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
title_full The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
title_fullStr The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
title_full_unstemmed The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
title_sort The role of the host-specific grasshopper <i>Cornops aquaticum</i> (Orthoptera: Acrididae) as consumer of native <i>Eichhornia crassipes</i> (Pontederiaceae) floating meadows
dc.creator.none.fl_str_mv Franceschini, María Celeste
Wysiecki, María Laura de
Poi, Alicia Susana G.
Galassi, María Eugenia
Martínez, Fedra Solange
author Franceschini, María Celeste
author_facet Franceschini, María Celeste
Wysiecki, María Laura de
Poi, Alicia Susana G.
Galassi, María Eugenia
Martínez, Fedra Solange
author_role author
author2 Wysiecki, María Laura de
Poi, Alicia Susana G.
Galassi, María Eugenia
Martínez, Fedra Solange
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Consumption
Cornops aquaticum
Eichhornia crassipes
Floodplain
Grasshopper
Herbivory
Macrophyte productivity
topic Ciencias Naturales
Consumption
Cornops aquaticum
Eichhornia crassipes
Floodplain
Grasshopper
Herbivory
Macrophyte productivity
dc.description.none.fl_txt_mv <i>Cornops aquaticum</i> is a widely distributed semiaquatic grasshopper in the Neotropics. The development, feeding and oviposition of <i>C. aquaticum</i> take place on Pontederiaceae, especially on species of <i>Eichhornia</i>. Several aspects of the feeding of <i>C. aquaticum</i> are studied because is one of the most important herbivores of the highly invasive floating <i>Eichhornia crassipes</i> in native areas. The aims of this paper were: (1) to quantify the amount of <i>E. crassipes</i> consumed by <i>C. aquaticum</i>, (2) to determine the growth rate and the conversion efficiency of food ingested by this grasshopper, and (3) to determine the possible effect of consumption on <i>E. crassipes</i> productivity. Thirty individuals from each specific age class were used in the experiment: nymphs A, nymphs B, adult males and adult females. Insects were individually confined in plastic pots with a leaf of <i>E. crassipes</i>. We estimated feeding by individual, consumption index (CI), relative growth rate (GR) and efficiency of conversion of ingested food to body substance (ECI). The impact of <i>C. aquaticum</i> consumption on <i>E. crassipes</i> floating meadows was assessed with the abundance of the grasshopper, and the available data on primary production of the host plant at the study site. Food intake of <i>C. aquaticum</i> was 11.23% of plant productivity. Food consumption, growth rate and food conversion efficiency of this grasshopper varied according to the specific age classes. Damage caused by <i>C. aquaticum</i> is high in comparison with the damage caused by other semiaquatic and grassland grasshoppers, however it is not enough to prevent the growth and coverage of native <i>E. crassipes</i> floating meadows because abundance of grasshoppers are realtively low and the growth rate and productivity of the host plant is high.
Centro de Estudios Parasitológicos y de Vectores
description <i>Cornops aquaticum</i> is a widely distributed semiaquatic grasshopper in the Neotropics. The development, feeding and oviposition of <i>C. aquaticum</i> take place on Pontederiaceae, especially on species of <i>Eichhornia</i>. Several aspects of the feeding of <i>C. aquaticum</i> are studied because is one of the most important herbivores of the highly invasive floating <i>Eichhornia crassipes</i> in native areas. The aims of this paper were: (1) to quantify the amount of <i>E. crassipes</i> consumed by <i>C. aquaticum</i>, (2) to determine the growth rate and the conversion efficiency of food ingested by this grasshopper, and (3) to determine the possible effect of consumption on <i>E. crassipes</i> productivity. Thirty individuals from each specific age class were used in the experiment: nymphs A, nymphs B, adult males and adult females. Insects were individually confined in plastic pots with a leaf of <i>E. crassipes</i>. We estimated feeding by individual, consumption index (CI), relative growth rate (GR) and efficiency of conversion of ingested food to body substance (ECI). The impact of <i>C. aquaticum</i> consumption on <i>E. crassipes</i> floating meadows was assessed with the abundance of the grasshopper, and the available data on primary production of the host plant at the study site. Food intake of <i>C. aquaticum</i> was 11.23% of plant productivity. Food consumption, growth rate and food conversion efficiency of this grasshopper varied according to the specific age classes. Damage caused by <i>C. aquaticum</i> is high in comparison with the damage caused by other semiaquatic and grassland grasshoppers, however it is not enough to prevent the growth and coverage of native <i>E. crassipes</i> floating meadows because abundance of grasshoppers are realtively low and the growth rate and productivity of the host plant is high.
publishDate 2010
dc.date.none.fl_str_mv 2010-08
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info:eu-repo/semantics/publishedVersion
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dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/url/https://revistas.ucr.ac.cr/index.php/rbt/article/view/3407
info:eu-repo/semantics/altIdentifier/issn/0034-7744
info:eu-repo/semantics/altIdentifier/doi/10.15517/rbt.v0i0.3407
info:eu-repo/semantics/altIdentifier/hdl/11336/42247
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1407-1418
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