Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa

Autores
Adis, Joachim; Sperber, Carlos F; Brede, Edward G; Capello, Soledad; Franceschini, Maria Celeste; Hill, Martin; Lhano, Marcos G; Marques, Marinê. A;z M.; Nunes, Ana L.; Polar, Perry
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia. A quarantine population has existed in South Africa for 10 y, and it is planned to release it there as a biological control agent of water hyacinth, E. crassipes. Various studies of C. aquaticum are coordinated under HICWA (www.mpil-ploen.mpg.de). This paper compares the morphometry of the release population and 11 native populations in South America. We tested four hypotheses: 1) South African and South American populations of C. aquaticum differ in morphology; 2) the South African laboratory population is more similar to other isolated populations in South America than to nonisolated populations; 3) morphology differs across sites; 4) morphology differs with host plant. South African populations differed from continental nonisolated populations, but not from continental isolated ones. Isolated populations presented smaller individuals than nonisolated, but there was also a change in male morphology: while in nonisolated populations male wing length was similar to their body length, in isolated populations, male wings were smaller than body length. Females were larger when on Eicchornia azurea than on E. crassipes, while males presented larger wings than their body on E. azurea, and similar lengths on E. crassipes. These morphological changes may have resulted from phenotypic plasticity, selection for small size, or because of a loss of genetic diversity in quantitative traits.
Fil: Adis, Joachim. Institute for Limnology; Alemania
Fil: Sperber, Carlos F. Universidade Federal de Viçosa; Brasil
Fil: Brede, Edward G. Institute for Limnology; Alemania
Fil: Capello, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Franceschini, Maria Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Hill, Martin. Rhodes University; Sudáfrica
Fil: Lhano, Marcos G. Universidade Federal de Viçosa; Brasil
Fil: Marques, Marinê. A;z M.. Universidade Federal de Mato Grosso; Brasil
Fil: Nunes, Ana L.. Muséu Paraense Emílio Goeldi; Brasil
Fil: Polar, Perry. CAB International; Trinidad y Tobago
Materia
EICHHORNIA
PONTEDERIA
MORPHOMETRY
WATER HYACINTH
GEOGRAPHY
ISOLATION
MORPHOLOGY
BODY SIZE
WING
NEOTROPICS
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:11336/38330
Acceder
id CONICETDig_64d226d680936221c7743b1f20967238
oai_identifier_str oai:ri.conicet.gov.ar:11336/38330
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South AfricaAdis, JoachimSperber, Carlos FBrede, Edward GCapello, SoledadFranceschini, Maria CelesteHill, MartinLhano, Marcos GMarques, Marinê. A;z M.Nunes, Ana L.Polar, PerryEICHHORNIAPONTEDERIAMORPHOMETRYWATER HYACINTHGEOGRAPHYISOLATIONMORPHOLOGYBODY SIZEWINGNEOTROPICShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia. A quarantine population has existed in South Africa for 10 y, and it is planned to release it there as a biological control agent of water hyacinth, E. crassipes. Various studies of C. aquaticum are coordinated under HICWA (www.mpil-ploen.mpg.de). This paper compares the morphometry of the release population and 11 native populations in South America. We tested four hypotheses: 1) South African and South American populations of C. aquaticum differ in morphology; 2) the South African laboratory population is more similar to other isolated populations in South America than to nonisolated populations; 3) morphology differs across sites; 4) morphology differs with host plant. South African populations differed from continental nonisolated populations, but not from continental isolated ones. Isolated populations presented smaller individuals than nonisolated, but there was also a change in male morphology: while in nonisolated populations male wing length was similar to their body length, in isolated populations, male wings were smaller than body length. Females were larger when on Eicchornia azurea than on E. crassipes, while males presented larger wings than their body on E. azurea, and similar lengths on E. crassipes. These morphological changes may have resulted from phenotypic plasticity, selection for small size, or because of a loss of genetic diversity in quantitative traits.Fil: Adis, Joachim. Institute for Limnology; AlemaniaFil: Sperber, Carlos F. Universidade Federal de Viçosa; BrasilFil: Brede, Edward G. Institute for Limnology; AlemaniaFil: Capello, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Franceschini, Maria Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Hill, Martin. Rhodes University; SudáfricaFil: Lhano, Marcos G. Universidade Federal de Viçosa; BrasilFil: Marques, Marinê. A;z M.. Universidade Federal de Mato Grosso; BrasilFil: Nunes, Ana L.. Muséu Paraense Emílio Goeldi; BrasilFil: Polar, Perry. CAB International; Trinidad y TobagoOrthopterists' Society2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38330Adis, Joachim; Sperber, Carlos F; Brede, Edward G; Capello, Soledad; Franceschini, Maria Celeste; et al.; Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa; Orthopterists' Society; Journal Of Orthoptera Research; 17; 2; 12-2008; 141-1471082-64671937-2426CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.1665/1082-6467-17.2.141info:eu-repo/semantics/altIdentifier/doi/10.1665/1082-6467-17.2.141info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:32Zoai:ri.conicet.gov.ar:11336/38330instacron: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:34982025-09-29 09:45:32.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
title Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
spellingShingle Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
Adis, Joachim
EICHHORNIA
PONTEDERIA
MORPHOMETRY
WATER HYACINTH
GEOGRAPHY
ISOLATION
MORPHOLOGY
BODY SIZE
WING
NEOTROPICS
title_short Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
title_full Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
title_fullStr Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
title_full_unstemmed Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
title_sort Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa
dc.creator.none.fl_str_mv Adis, Joachim
Sperber, Carlos F
Brede, Edward G
Capello, Soledad
Franceschini, Maria Celeste
Hill, Martin
Lhano, Marcos G
Marques, Marinê. A;z M.
Nunes, Ana L.
Polar, Perry
author Adis, Joachim
author_facet Adis, Joachim
Sperber, Carlos F
Brede, Edward G
Capello, Soledad
Franceschini, Maria Celeste
Hill, Martin
Lhano, Marcos G
Marques, Marinê. A;z M.
Nunes, Ana L.
Polar, Perry
author_role author
author2 Sperber, Carlos F
Brede, Edward G
Capello, Soledad
Franceschini, Maria Celeste
Hill, Martin
Lhano, Marcos G
Marques, Marinê. A;z M.
Nunes, Ana L.
Polar, Perry
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv EICHHORNIA
PONTEDERIA
MORPHOMETRY
WATER HYACINTH
GEOGRAPHY
ISOLATION
MORPHOLOGY
BODY SIZE
WING
NEOTROPICS
topic EICHHORNIA
PONTEDERIA
MORPHOMETRY
WATER HYACINTH
GEOGRAPHY
ISOLATION
MORPHOLOGY
BODY SIZE
WING
NEOTROPICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia. A quarantine population has existed in South Africa for 10 y, and it is planned to release it there as a biological control agent of water hyacinth, E. crassipes. Various studies of C. aquaticum are coordinated under HICWA (www.mpil-ploen.mpg.de). This paper compares the morphometry of the release population and 11 native populations in South America. We tested four hypotheses: 1) South African and South American populations of C. aquaticum differ in morphology; 2) the South African laboratory population is more similar to other isolated populations in South America than to nonisolated populations; 3) morphology differs across sites; 4) morphology differs with host plant. South African populations differed from continental nonisolated populations, but not from continental isolated ones. Isolated populations presented smaller individuals than nonisolated, but there was also a change in male morphology: while in nonisolated populations male wing length was similar to their body length, in isolated populations, male wings were smaller than body length. Females were larger when on Eicchornia azurea than on E. crassipes, while males presented larger wings than their body on E. azurea, and similar lengths on E. crassipes. These morphological changes may have resulted from phenotypic plasticity, selection for small size, or because of a loss of genetic diversity in quantitative traits.
Fil: Adis, Joachim. Institute for Limnology; Alemania
Fil: Sperber, Carlos F. Universidade Federal de Viçosa; Brasil
Fil: Brede, Edward G. Institute for Limnology; Alemania
Fil: Capello, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Franceschini, Maria Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Hill, Martin. Rhodes University; Sudáfrica
Fil: Lhano, Marcos G. Universidade Federal de Viçosa; Brasil
Fil: Marques, Marinê. A;z M.. Universidade Federal de Mato Grosso; Brasil
Fil: Nunes, Ana L.. Muséu Paraense Emílio Goeldi; Brasil
Fil: Polar, Perry. CAB International; Trinidad y Tobago
description The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia. A quarantine population has existed in South Africa for 10 y, and it is planned to release it there as a biological control agent of water hyacinth, E. crassipes. Various studies of C. aquaticum are coordinated under HICWA (www.mpil-ploen.mpg.de). This paper compares the morphometry of the release population and 11 native populations in South America. We tested four hypotheses: 1) South African and South American populations of C. aquaticum differ in morphology; 2) the South African laboratory population is more similar to other isolated populations in South America than to nonisolated populations; 3) morphology differs across sites; 4) morphology differs with host plant. South African populations differed from continental nonisolated populations, but not from continental isolated ones. Isolated populations presented smaller individuals than nonisolated, but there was also a change in male morphology: while in nonisolated populations male wing length was similar to their body length, in isolated populations, male wings were smaller than body length. Females were larger when on Eicchornia azurea than on E. crassipes, while males presented larger wings than their body on E. azurea, and similar lengths on E. crassipes. These morphological changes may have resulted from phenotypic plasticity, selection for small size, or because of a loss of genetic diversity in quantitative traits.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/38330
Adis, Joachim; Sperber, Carlos F; Brede, Edward G; Capello, Soledad; Franceschini, Maria Celeste; et al.; Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa; Orthopterists' Society; Journal Of Orthoptera Research; 17; 2; 12-2008; 141-147
1082-6467
1937-2426
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38330
identifier_str_mv Adis, Joachim; Sperber, Carlos F; Brede, Edward G; Capello, Soledad; Franceschini, Maria Celeste; et al.; Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa; Orthopterists' Society; Journal Of Orthoptera Research; 17; 2; 12-2008; 141-147
1082-6467
1937-2426
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.1665/1082-6467-17.2.141
info:eu-repo/semantics/altIdentifier/doi/10.1665/1082-6467-17.2.141
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
dc.publisher.none.fl_str_mv Orthopterists' Society
publisher.none.fl_str_mv Orthopterists' Society
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
_version_ 1844613427620741120
score 13.070432

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