Cargando…

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

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Chaves, Leonardo Suveges Moreira, Conn, Jan E., López, Rossana Verónica Mendoza, Sallum, Maria Anice Mureb
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5935754/
https://www.ncbi.nlm.nih.gov/pubmed/29728637
http://dx.doi.org/10.1038/s41598-018-25344-5
_version_ 1783320323852075008
author Chaves, Leonardo Suveges Moreira
Conn, Jan E.
López, Rossana Verónica Mendoza
Sallum, Maria Anice Mureb
author_facet Chaves, Leonardo Suveges Moreira
Conn, Jan E.
López, Rossana Verónica Mendoza
Sallum, Maria Anice Mureb
author_sort Chaves, Leonardo Suveges Moreira
collection PubMed
description 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 (r² = 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 ~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.
format Online
Article
Text
id pubmed-5935754
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-59357542018-05-10 Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil Chaves, Leonardo Suveges Moreira Conn, Jan E. López, Rossana Verónica Mendoza Sallum, Maria Anice Mureb Sci Rep Article 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 (r² = 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 ~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. Nature Publishing Group UK 2018-05-04 /pmc/articles/PMC5935754/ /pubmed/29728637 http://dx.doi.org/10.1038/s41598-018-25344-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Chaves, Leonardo Suveges Moreira
Conn, Jan E.
López, Rossana Verónica Mendoza
Sallum, Maria Anice Mureb
Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title_full Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title_fullStr Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title_full_unstemmed Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title_short Abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in Amazonian Brazil
title_sort abundance of impacted forest patches less than 5 km(2) is a key driver of the incidence of malaria in amazonian brazil
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5935754/
https://www.ncbi.nlm.nih.gov/pubmed/29728637
http://dx.doi.org/10.1038/s41598-018-25344-5
work_keys_str_mv AT chavesleonardosuvegesmoreira abundanceofimpactedforestpatcheslessthan5km2isakeydriveroftheincidenceofmalariainamazonianbrazil
AT connjane abundanceofimpactedforestpatcheslessthan5km2isakeydriveroftheincidenceofmalariainamazonianbrazil
AT lopezrossanaveronicamendoza abundanceofimpactedforestpatcheslessthan5km2isakeydriveroftheincidenceofmalariainamazonianbrazil
AT sallummariaanicemureb abundanceofimpactedforestpatcheslessthan5km2isakeydriveroftheincidenceofmalariainamazonianbrazil