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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/101287
Ver los metadatos del registro completo
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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 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/101287 |
url |
http://sedici.unlp.edu.ar/handle/10915/101287 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/42247 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 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf 1407-1418 |
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