Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations

Dichroplus maculipennisis one of the most damaging grasshopper species of Argentina. Individuals of this species at high density are historically known to show aggregation behavior and dispersal flights, attributes that might suggest that it does exhibit to some extent phase polyphenism in relation...

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Autores: Mariottini, Yanina, Scattolini, María Celeste, Cigliano, Maria Marta, Lange, Ernesto Carlos
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/9788
Acesso em linha:http://hdl.handle.net/11336/9788
Access Level:acceso abierto
Palavra-chave:Locusts
Morphometric Traits
Phase Polymorphism
Grasshoppers
Agricultural Pest
Pampas Region
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9788
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
title Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
spellingShingle Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
Mariottini, Yanina
Locusts
Morphometric Traits
Phase Polymorphism
Grasshoppers
Agricultural Pest
Pampas Region
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
title_short Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
title_full Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
title_fullStr Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
title_full_unstemmed Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
title_sort Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
dc.creator.none.fl_str_mv Mariottini, Yanina
Scattolini, María Celeste
Cigliano, Maria Marta
Lange, Ernesto Carlos
author Mariottini, Yanina
author_facet Mariottini, Yanina
Scattolini, María Celeste
Cigliano, Maria Marta
Lange, Ernesto Carlos
author_role author
author2 Scattolini, María Celeste
Cigliano, Maria Marta
Lange, Ernesto Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv Locusts
Morphometric Traits
Phase Polymorphism
Grasshoppers
Agricultural Pest
Pampas Region
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
topic Locusts
Morphometric Traits
Phase Polymorphism
Grasshoppers
Agricultural Pest
Pampas Region
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
description Dichroplus maculipennisis one of the most damaging grasshopper species of Argentina. Individuals of this species at high density are historically known to show aggregation behavior and dispersal flights, attributes that might suggest that it does exhibit to some extent phase polyphenism in relation to population density. Phase polyphenism is a complex phenomenon and the amplitude of phase change is usually species-dependent. Morphological differences between gregarious and solitarious locusts can be measured and analyzed in order to characterize the phase status. The objective of this study was to evaluate morphometric differences between individuals of a D. maculipennis field population in the southern Pampas region of Argentina during non-outbreak and outbreak conditions including the magnitude of sexual size dimorphism related to variation in density. Collected individuals in the outbreak condition totaled 804 (422 females, 382 males) and those in non-outbreak condition were 325 (141 females, 184 males). Six morphometric characters were measured and two ratios (F/C and E/F) usually used to discriminate between solitarious and gregarious individuals in true locust species were calculated. Results show that size traits of D. maculipennis change over time at the population level, and that these changes correlate with outbreak vs non-outbreak populations. Females and males of D. maculipennis in outbreak conditions are significantly larger than in non-outbreak conditions. Furthermore,significant change over time was recorded in values of the two ratios calculated. D. maculipennis showed female biased sexual size dimorphism in both outbreak and non-outbreak conditions. There is a smaller difference in body size among females and males in outbreak conditions than in females and males in non-outbreak conditions. These results may be an indication of the presence of densitydependent phenotypic plasticity in this species, but additional experiments are required in order to establish a causal relationship between population density and changes in size traits.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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/11336/9788
Mariottini, Yanina; Scattolini, María Celeste; Cigliano, Maria Marta; Lange, Ernesto Carlos; Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations; Orthopterists' Society; Journal Of Orthoptera Research; 24; 2; 12-2015; 67-75
1082-6467
url http://hdl.handle.net/11336/9788
identifier_str_mv Mariottini, Yanina; Scattolini, María Celeste; Cigliano, Maria Marta; Lange, Ernesto Carlos; Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations; Orthopterists' Society; Journal Of Orthoptera Research; 24; 2; 12-2015; 67-75
1082-6467
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1665/034.024.0205
info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.1665/034.024.0205
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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spelling Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situationsMariottini, YaninaScattolini, María CelesteCigliano, Maria MartaLange, Ernesto CarlosLocustsMorphometric TraitsPhase PolymorphismGrasshoppersAgricultural PestPampas Regionhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Dichroplus maculipennisis one of the most damaging grasshopper species of Argentina. Individuals of this species at high density are historically known to show aggregation behavior and dispersal flights, attributes that might suggest that it does exhibit to some extent phase polyphenism in relation to population density. Phase polyphenism is a complex phenomenon and the amplitude of phase change is usually species-dependent. Morphological differences between gregarious and solitarious locusts can be measured and analyzed in order to characterize the phase status. The objective of this study was to evaluate morphometric differences between individuals of a D. maculipennis field population in the southern Pampas region of Argentina during non-outbreak and outbreak conditions including the magnitude of sexual size dimorphism related to variation in density. Collected individuals in the outbreak condition totaled 804 (422 females, 382 males) and those in non-outbreak condition were 325 (141 females, 184 males). Six morphometric characters were measured and two ratios (F/C and E/F) usually used to discriminate between solitarious and gregarious individuals in true locust species were calculated. Results show that size traits of D. maculipennis change over time at the population level, and that these changes correlate with outbreak vs non-outbreak populations. Females and males of D. maculipennis in outbreak conditions are significantly larger than in non-outbreak conditions. Furthermore,significant change over time was recorded in values of the two ratios calculated. D. maculipennis showed female biased sexual size dimorphism in both outbreak and non-outbreak conditions. There is a smaller difference in body size among females and males in outbreak conditions than in females and males in non-outbreak conditions. These results may be an indication of the presence of densitydependent phenotypic plasticity in this species, but additional experiments are required in order to establish a causal relationship between population density and changes in size traits.Fil: Mariottini, Yanina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto Multidisciplinario de Ecosistemas y Desarrollo Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Estudios Parasitológicos y de Vectores (i); ArgentinaFil: Scattolini, María Celeste. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Estudios Parasitológicos y de Vectores (i); ArgentinaFil: Cigliano, Maria Marta. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Estudios Parasitológicos y de Vectores (i); ArgentinaFil: Lange, Ernesto Carlos. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Estudios Parasitológicos y de Vectores (i); ArgentinaOrthopterists' Society2015-12info: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/11336/9788Mariottini, Yanina; Scattolini, María Celeste; Cigliano, Maria Marta; Lange, Ernesto Carlos; Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations; Orthopterists' Society; Journal Of Orthoptera Research; 24; 2; 12-2015; 67-751082-6467enginfo:eu-repo/semantics/altIdentifier/doi/10.1665/034.024.0205info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.1665/034.024.0205info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:47:20Zoai:ri.conicet.gov.ar:11336/9788instacron: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:34982024-05-08 13:47:21.064CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15,811543

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