Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil

Autor(es)

Moreira Chaves, Leonardo Suveges ^[1] ; Conn, Jan E. ^{[2, 3]} ; Mendoza Lopez, Rossana Veronica ^[4] ; Mureb Sallum, Maria Anice ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Saude Publ, Dept Epidemiol, Sao Paulo, SP - Brazil

^[2] New York State Dept Hlth, Wadsworth Ctr, Albany, NY - USA

^[3] SUNY Albany, Sch Publ Hlth, Dept Biomed Sci, Albany, NY - USA

^[4] Canc Inst State Sao Paulo, Ctr Translat Invest Oncol, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 8, MAY 4 2018.
• Citações Web of Science: 15

Resumo

The precise role that deforestation for agricultural settlements and commercial forest products plays in promoting or inhibiting malaria incidence in Amazonian Brazil is controversial. Using publically available databases, we analyzed temporal malaria incidence (2009-2015) in municipalities of nine Amazonian states in relation to ecologically defined variables: (i) deforestation (rate of forest clearing over time); (ii) degraded forest (degree of human disturbance and openness of forest canopy for logging) and (iii) impacted forest (sum of deforested and degraded forest patches). We found that areas affected by one kilometer square of deforestation produced 27 new malaria cases (r(2) = 0.78; F1,10 = 35.81; P < 0.001). Unexpectedly, we found both a highly significant positive correlation between number of impacted forest patches less than 5 km(2) and malaria cases, and that these patch sizes accounted for greater than similar to 95% of all patches in the study area. There was a significantly negative correlation between extraction forestry economic indices and malaria cases. Our results emphasize not only that deforestation promotes malaria incidence, but also that it directly or indirectly results in a low Human Development Index, and favors environmental conditions that promote malaria vector proliferation. (AU)

• Processo FAPESP: 14/26229-7 - Genômica de paisagens em gradientes latitudinais e ecologia de Anopheles darlingi
• Beneficiário: Maria Anice Mureb Sallum
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/26855-5 - A paisagem como agente regulador da diversidade de culicídeos e da dinâmica de anofelinos vetores em assentamentos rurais com casos de malária na Amazônia Brasileira
• Beneficiário: Leonardo Suveges Moreira Chaves
• Modalidade de apoio: Bolsas no Brasil - Doutorado