Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil

Autores
Rufalco-Moutinho, Paulo; Schweigmann, Nicolas Joaquin; Bergamaschi, Denise Pimentel; Mureb Sallum, Maria Anice
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Rural settlements are social arrangements expanding in the Amazon region, which generate disturbances in the natural environment, thus affecting the ecology of the species of Anopheles and thus the malaria transmission. Larval habitats are important sources for maintenance of mosquito vector populations, and holding back a natural watercourse is a usual process in the establishment of rural settlements, since the formation of micro-dams represents a water resource for the new settlers. Identifying characteristics of the larval habitats that may be associated with both the presence and abundance of Anopheles vectors species in an environment under ecological transition is background for planning vector control strategies in rural areas in the Amazon. Anopheles larvae collections were performed in two major types of habitats: natural and flow-limited water collections that were constructed by holding back the original watercourse. A total of 3123 Anopheles spp. larvae were captured in three field-sampling collections. The majority of the larvae identified were taken from flow-limited water collections belonged to species of the Nyssorhynchus subgenus (92%), whereas in the natural larval habitats a fewer number of individuals belonged to the Stethomyia (5%) and Anopheles (3%) subgenera. The total of Nyssorhynchus identified (1818), 501 specimens belonged to An. darlingi, 750 to An. triannulatus and 567 for others remaining species. In addition, 1152 could not be identified to subgenus/species level, because they were either in the first-instar or damaged. The primary vector in areas of the Amazon river basin, An. darlingi, was found exclusively in man-made habitats. Statistical analysis display An. triannulatus with specialist behavior for characteristics of man-made habitats. Modifications in the natural environment facilitate the rise of larval habitats for species with epidemiological importance for malaria in the region. This study showed that man-made habitats flow-limited water collections from dry lands could be a factor associated with the increase of An. darlingi and An. triannulatus populations, and other Nyssorhynchus species as well in endemic areas of the Amazon Region.
Fil: Rufalco-Moutinho, Paulo. Universidade de Sao Paulo; Brasil
Fil: Schweigmann, Nicolas Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Estudio de Mosquitos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Bergamaschi, Denise Pimentel. Universidade de Sao Paulo; Brasil
Fil: Mureb Sallum, Maria Anice. Universidade de Sao Paulo; Brasil
Materia
AMAZON REGION
ANOPHELES SP
ANTHROPOGENIC ENVIRONMENT
LARVAL HABITATS
MALARIA FRONTIER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/61431

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network_name_str CONICET Digital (CONICET)
spelling Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, BrazilRufalco-Moutinho, PauloSchweigmann, Nicolas JoaquinBergamaschi, Denise PimentelMureb Sallum, Maria AniceAMAZON REGIONANOPHELES SPANTHROPOGENIC ENVIRONMENTLARVAL HABITATSMALARIA FRONTIERhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Rural settlements are social arrangements expanding in the Amazon region, which generate disturbances in the natural environment, thus affecting the ecology of the species of Anopheles and thus the malaria transmission. Larval habitats are important sources for maintenance of mosquito vector populations, and holding back a natural watercourse is a usual process in the establishment of rural settlements, since the formation of micro-dams represents a water resource for the new settlers. Identifying characteristics of the larval habitats that may be associated with both the presence and abundance of Anopheles vectors species in an environment under ecological transition is background for planning vector control strategies in rural areas in the Amazon. Anopheles larvae collections were performed in two major types of habitats: natural and flow-limited water collections that were constructed by holding back the original watercourse. A total of 3123 Anopheles spp. larvae were captured in three field-sampling collections. The majority of the larvae identified were taken from flow-limited water collections belonged to species of the Nyssorhynchus subgenus (92%), whereas in the natural larval habitats a fewer number of individuals belonged to the Stethomyia (5%) and Anopheles (3%) subgenera. The total of Nyssorhynchus identified (1818), 501 specimens belonged to An. darlingi, 750 to An. triannulatus and 567 for others remaining species. In addition, 1152 could not be identified to subgenus/species level, because they were either in the first-instar or damaged. The primary vector in areas of the Amazon river basin, An. darlingi, was found exclusively in man-made habitats. Statistical analysis display An. triannulatus with specialist behavior for characteristics of man-made habitats. Modifications in the natural environment facilitate the rise of larval habitats for species with epidemiological importance for malaria in the region. This study showed that man-made habitats flow-limited water collections from dry lands could be a factor associated with the increase of An. darlingi and An. triannulatus populations, and other Nyssorhynchus species as well in endemic areas of the Amazon Region.Fil: Rufalco-Moutinho, Paulo. Universidade de Sao Paulo; BrasilFil: Schweigmann, Nicolas Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Estudio de Mosquitos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Bergamaschi, Denise Pimentel. Universidade de Sao Paulo; BrasilFil: Mureb Sallum, Maria Anice. Universidade de Sao Paulo; BrasilElsevier Science2016-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61431Rufalco-Moutinho, Paulo; Schweigmann, Nicolas Joaquin; Bergamaschi, Denise Pimentel; Mureb Sallum, Maria Anice; Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil; Elsevier Science; Acta Tropica; 164; 12-2016; 243-2580001-706XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0001706X16302637info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actatropica.2016.08.032info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:49Zoai:ri.conicet.gov.ar:11336/61431instacron: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 10:39:49.54CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
title Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
spellingShingle Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
Rufalco-Moutinho, Paulo
AMAZON REGION
ANOPHELES SP
ANTHROPOGENIC ENVIRONMENT
LARVAL HABITATS
MALARIA FRONTIER
title_short Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
title_full Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
title_fullStr Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
title_full_unstemmed Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
title_sort Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil
dc.creator.none.fl_str_mv Rufalco-Moutinho, Paulo
Schweigmann, Nicolas Joaquin
Bergamaschi, Denise Pimentel
Mureb Sallum, Maria Anice
author Rufalco-Moutinho, Paulo
author_facet Rufalco-Moutinho, Paulo
Schweigmann, Nicolas Joaquin
Bergamaschi, Denise Pimentel
Mureb Sallum, Maria Anice
author_role author
author2 Schweigmann, Nicolas Joaquin
Bergamaschi, Denise Pimentel
Mureb Sallum, Maria Anice
author2_role author
author
author
dc.subject.none.fl_str_mv AMAZON REGION
ANOPHELES SP
ANTHROPOGENIC ENVIRONMENT
LARVAL HABITATS
MALARIA FRONTIER
topic AMAZON REGION
ANOPHELES SP
ANTHROPOGENIC ENVIRONMENT
LARVAL HABITATS
MALARIA FRONTIER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Rural settlements are social arrangements expanding in the Amazon region, which generate disturbances in the natural environment, thus affecting the ecology of the species of Anopheles and thus the malaria transmission. Larval habitats are important sources for maintenance of mosquito vector populations, and holding back a natural watercourse is a usual process in the establishment of rural settlements, since the formation of micro-dams represents a water resource for the new settlers. Identifying characteristics of the larval habitats that may be associated with both the presence and abundance of Anopheles vectors species in an environment under ecological transition is background for planning vector control strategies in rural areas in the Amazon. Anopheles larvae collections were performed in two major types of habitats: natural and flow-limited water collections that were constructed by holding back the original watercourse. A total of 3123 Anopheles spp. larvae were captured in three field-sampling collections. The majority of the larvae identified were taken from flow-limited water collections belonged to species of the Nyssorhynchus subgenus (92%), whereas in the natural larval habitats a fewer number of individuals belonged to the Stethomyia (5%) and Anopheles (3%) subgenera. The total of Nyssorhynchus identified (1818), 501 specimens belonged to An. darlingi, 750 to An. triannulatus and 567 for others remaining species. In addition, 1152 could not be identified to subgenus/species level, because they were either in the first-instar or damaged. The primary vector in areas of the Amazon river basin, An. darlingi, was found exclusively in man-made habitats. Statistical analysis display An. triannulatus with specialist behavior for characteristics of man-made habitats. Modifications in the natural environment facilitate the rise of larval habitats for species with epidemiological importance for malaria in the region. This study showed that man-made habitats flow-limited water collections from dry lands could be a factor associated with the increase of An. darlingi and An. triannulatus populations, and other Nyssorhynchus species as well in endemic areas of the Amazon Region.
Fil: Rufalco-Moutinho, Paulo. Universidade de Sao Paulo; Brasil
Fil: Schweigmann, Nicolas Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Estudio de Mosquitos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Bergamaschi, Denise Pimentel. Universidade de Sao Paulo; Brasil
Fil: Mureb Sallum, Maria Anice. Universidade de Sao Paulo; Brasil
description Rural settlements are social arrangements expanding in the Amazon region, which generate disturbances in the natural environment, thus affecting the ecology of the species of Anopheles and thus the malaria transmission. Larval habitats are important sources for maintenance of mosquito vector populations, and holding back a natural watercourse is a usual process in the establishment of rural settlements, since the formation of micro-dams represents a water resource for the new settlers. Identifying characteristics of the larval habitats that may be associated with both the presence and abundance of Anopheles vectors species in an environment under ecological transition is background for planning vector control strategies in rural areas in the Amazon. Anopheles larvae collections were performed in two major types of habitats: natural and flow-limited water collections that were constructed by holding back the original watercourse. A total of 3123 Anopheles spp. larvae were captured in three field-sampling collections. The majority of the larvae identified were taken from flow-limited water collections belonged to species of the Nyssorhynchus subgenus (92%), whereas in the natural larval habitats a fewer number of individuals belonged to the Stethomyia (5%) and Anopheles (3%) subgenera. The total of Nyssorhynchus identified (1818), 501 specimens belonged to An. darlingi, 750 to An. triannulatus and 567 for others remaining species. In addition, 1152 could not be identified to subgenus/species level, because they were either in the first-instar or damaged. The primary vector in areas of the Amazon river basin, An. darlingi, was found exclusively in man-made habitats. Statistical analysis display An. triannulatus with specialist behavior for characteristics of man-made habitats. Modifications in the natural environment facilitate the rise of larval habitats for species with epidemiological importance for malaria in the region. This study showed that man-made habitats flow-limited water collections from dry lands could be a factor associated with the increase of An. darlingi and An. triannulatus populations, and other Nyssorhynchus species as well in endemic areas of the Amazon Region.
publishDate 2016
dc.date.none.fl_str_mv 2016-12
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/11336/61431
Rufalco-Moutinho, Paulo; Schweigmann, Nicolas Joaquin; Bergamaschi, Denise Pimentel; Mureb Sallum, Maria Anice; Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil; Elsevier Science; Acta Tropica; 164; 12-2016; 243-258
0001-706X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61431
identifier_str_mv Rufalco-Moutinho, Paulo; Schweigmann, Nicolas Joaquin; Bergamaschi, Denise Pimentel; Mureb Sallum, Maria Anice; Larval habitats of Anopheles species in a rural settlement on the malaria frontier of southwest Amazon, Brazil; Elsevier Science; Acta Tropica; 164; 12-2016; 243-258
0001-706X
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.sciencedirect.com/science/article/pii/S0001706X16302637
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actatropica.2016.08.032
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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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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