Urbanization as a driver for temporal wing-shape variation in Anopheles cruzii (Diptera: Culicidae)

Autor(es)

Multini, Laura Cristina ^[1] ; Bruno Wilke, Andre Barretto ^[2] ; Marrelli, Mauro Toledo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Publ Hlth, Dept Epidemiol, Av Dr Arnaldo 715, BR-01246904 Sao Paulo, SP - Brazil

^[2] Univ Miami, Miller Sch Med, Dept Publ Hlth Sci, 1120 Northwest 14th St, Miami, FL 33136 - USA

• Tipo de documento: Artigo Científico
• Fonte: Acta Tropica; v. 190, p. 30-36, FEB 2019.
• Citações Web of Science: 5

Resumo

Anopheles cruzii is the main vector of human and simian malaria in the Brazilian Atlantic Forest. This biome, which is an important hotspot of malaria transmission, has suffered fragmentation and deforestation as a result of urban expansion. Fragmentation and deforestation occur continually in the south of the city of Sao Paulo, Brazil, and findings of An. cruzii in the peridomicile have consequently become more frequent in this part of the city. Although An. cruzii is of considerable epidemiological importance, the impact of urbanization on the microevolution of this species in this malaria-endemic region has not been investigated to date. In this study, we investigated temporal variation in wing shape and size in An. crush populations collected in sylvatic, peri-urban and urban areas over a three-year period. Our results show a slight but significant phenotypic variation in all three populations over the study period. Time was a more powerful driver for wing variation than geographic distance. Temporal wing-shape variation appears to be positively associated with urbanization, suggesting that anthropogenic changes in the environment may be a strong driver for wing-shape variation in An. cruzii. Further studies using genetic markers are needed to assess genetic differentiation in these populations. (AU)

• Processo FAPESP: 15/23386-7 - Estudos microevolutivos em Anopheles cruzii (Diptera: Culicidae), utilizando morfometria geométrica da asa e marcadores microssatélites
• Beneficiário: Laura Cristina Multini
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/50444-5 - Biodiversidade de mosquitos (Diptera : Culicidae) no Parque Estadual da Cantareira e na área de proteção ambiental Capivari - Monos, estado de São Paulo
• Beneficiário: Mauro Toledo Marrelli
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 14/10919-4 - Aspectos epidemiológicos da malária humana e símia em áreas de Mata Atlântica no entorno da cidade de São Paulo: estudo da fauna de anofelinos e infecção natural por Plasmodium sp. em Parelheiros e na Serra da Cantareira
• Beneficiário: Ana Maria Ribeiro de Castro Duarte
• Modalidade de apoio: Auxílio à Pesquisa - Regular