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dc.contributor.author
Rosetti, Maria Eva Natalia
dc.contributor.author
Remis, Maria Isabel
dc.date.available
2018-04-17T17:14:21Z
dc.date.issued
2015-07
dc.identifier.citation
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
dc.identifier.issn
0046-225X
dc.identifier.uri
http://hdl.handle.net/11336/42291
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Entomological Society of America
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Morphometric Traits
dc.subject
Fecundity
dc.subject
Orthoptera
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-10T20:09:21Z
dc.journal.volume
44
dc.journal.number
4
dc.journal.pagination
1240-1249
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Lanham
dc.description.fil
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
dc.description.fil
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
dc.journal.title
Environmental Entomology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/ee/nvv101
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ee/article-abstract/44/4/1240/2465894


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