Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)

Autores
Rosetti, Maria Eva Natalia; Remis, Maria Isabel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Patterns of body size evolution are of particular interest because body size can affect virtually all the physiological and life-history traits of an organism. Sexual size dimorphism (SSD), a difference in body size between males and females, is a widespread phenomenon in insects. Much of the variation in SSD is genetically based and likely due to differential selection acting on males and females. The importance of environmental variables and evolutionary processes affecting phenotypeic variation in both sexes may be useful to gain insights into insect ecology and evolution. Dichroplus elongatus is a South American grasshopper widely distributed throughout Argentina, Uruguay, most of Chile and southern Brazil. In this study we analyzed 122 adult females of D. elongatus collected in eight natural populations from Central-East Argentina. Females show large body size variation among the analyzed populations and this variation exhibits a strong relationship with fecundity. Our results have shown that larger females were more fecund than smaller ones. We found that ovariole number varied along a latitudinal gradient, with higher ovariole numbers in populations from warmer locations. A considerable female biased SSD was detected. SSD for three analyzed morphometric traits scaled isometrically. However, SSD for thorax length displayed a considerable variation across the studied area indicating a larger relative increase in female size than in male size in warmer environmental conditions.
Fil: Rosetti, Maria Eva Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Remis, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; Argentina
Materia
Morphometric Traits
Fecundity
Orthoptera
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:11336/42291
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)Rosetti, Maria Eva NataliaRemis, Maria IsabelMorphometric TraitsFecundityOrthopterahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Patterns of body size evolution are of particular interest because body size can affect virtually all the physiological and life-history traits of an organism. Sexual size dimorphism (SSD), a difference in body size between males and females, is a widespread phenomenon in insects. Much of the variation in SSD is genetically based and likely due to differential selection acting on males and females. The importance of environmental variables and evolutionary processes affecting phenotypeic variation in both sexes may be useful to gain insights into insect ecology and evolution. Dichroplus elongatus is a South American grasshopper widely distributed throughout Argentina, Uruguay, most of Chile and southern Brazil. In this study we analyzed 122 adult females of D. elongatus collected in eight natural populations from Central-East Argentina. Females show large body size variation among the analyzed populations and this variation exhibits a strong relationship with fecundity. Our results have shown that larger females were more fecund than smaller ones. We found that ovariole number varied along a latitudinal gradient, with higher ovariole numbers in populations from warmer locations. A considerable female biased SSD was detected. SSD for three analyzed morphometric traits scaled isometrically. However, SSD for thorax length displayed a considerable variation across the studied area indicating a larger relative increase in female size than in male size in warmer environmental conditions.Fil: Rosetti, Maria Eva Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Remis, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; ArgentinaEntomological Society of America2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/42291Rosetti, Maria Eva Natalia; Remis, Maria Isabel; Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae); Entomological Society of America; Environmental Entomology; 44; 4; 7-2015; 1240-12490046-225XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/ee/nvv101info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ee/article-abstract/44/4/1240/2465894info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:58:49Zoai:ri.conicet.gov.ar:11336/42291instacron: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 09:58:49.359CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
title Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
spellingShingle Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
Rosetti, Maria Eva Natalia
Morphometric Traits
Fecundity
Orthoptera
title_short Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
title_full Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
title_fullStr Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
title_full_unstemmed Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
title_sort Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
dc.creator.none.fl_str_mv Rosetti, Maria Eva Natalia
Remis, Maria Isabel
author Rosetti, Maria Eva Natalia
author_facet Rosetti, Maria Eva Natalia
Remis, Maria Isabel
author_role author
author2 Remis, Maria Isabel
author2_role author
dc.subject.none.fl_str_mv Morphometric Traits
Fecundity
Orthoptera
topic Morphometric Traits
Fecundity
Orthoptera
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Patterns of body size evolution are of particular interest because body size can affect virtually all the physiological and life-history traits of an organism. Sexual size dimorphism (SSD), a difference in body size between males and females, is a widespread phenomenon in insects. Much of the variation in SSD is genetically based and likely due to differential selection acting on males and females. The importance of environmental variables and evolutionary processes affecting phenotypeic variation in both sexes may be useful to gain insights into insect ecology and evolution. Dichroplus elongatus is a South American grasshopper widely distributed throughout Argentina, Uruguay, most of Chile and southern Brazil. In this study we analyzed 122 adult females of D. elongatus collected in eight natural populations from Central-East Argentina. Females show large body size variation among the analyzed populations and this variation exhibits a strong relationship with fecundity. Our results have shown that larger females were more fecund than smaller ones. We found that ovariole number varied along a latitudinal gradient, with higher ovariole numbers in populations from warmer locations. A considerable female biased SSD was detected. SSD for three analyzed morphometric traits scaled isometrically. However, SSD for thorax length displayed a considerable variation across the studied area indicating a larger relative increase in female size than in male size in warmer environmental conditions.
Fil: Rosetti, Maria Eva Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Remis, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Genética de la Estructura Poblacional; Argentina
description Patterns of body size evolution are of particular interest because body size can affect virtually all the physiological and life-history traits of an organism. Sexual size dimorphism (SSD), a difference in body size between males and females, is a widespread phenomenon in insects. Much of the variation in SSD is genetically based and likely due to differential selection acting on males and females. The importance of environmental variables and evolutionary processes affecting phenotypeic variation in both sexes may be useful to gain insights into insect ecology and evolution. Dichroplus elongatus is a South American grasshopper widely distributed throughout Argentina, Uruguay, most of Chile and southern Brazil. In this study we analyzed 122 adult females of D. elongatus collected in eight natural populations from Central-East Argentina. Females show large body size variation among the analyzed populations and this variation exhibits a strong relationship with fecundity. Our results have shown that larger females were more fecund than smaller ones. We found that ovariole number varied along a latitudinal gradient, with higher ovariole numbers in populations from warmer locations. A considerable female biased SSD was detected. SSD for three analyzed morphometric traits scaled isometrically. However, SSD for thorax length displayed a considerable variation across the studied area indicating a larger relative increase in female size than in male size in warmer environmental conditions.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/42291
Rosetti, Maria Eva Natalia; Remis, Maria Isabel; Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae); Entomological Society of America; Environmental Entomology; 44; 4; 7-2015; 1240-1249
0046-225X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/42291
identifier_str_mv Rosetti, Maria Eva Natalia; Remis, Maria Isabel; Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae); Entomological Society of America; Environmental Entomology; 44; 4; 7-2015; 1240-1249
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/10.1093/ee/nvv101
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ee/article-abstract/44/4/1240/2465894
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
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 13.070432

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