Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.

Despite significant and successful efforts in Brazil regarding snakebites in the areas of research, antivenom manufacture and quality control, training of health professionals in the diagnosis and clinical management of bites, little is known about determinants of snakebites incidence in order to fu...

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Main Authors: João Arthur Alcântara, Paulo Sérgio Bernarde, Jacqueline Sachett, Ageane Mota da Silva, Samara Freire Valente, Henry Maia Peixoto, Marcus Lacerda, Maria Regina Oliveira, Ivan Saraiva, Vanderson de Souza Sampaio, Wuelton Marcelo Monteiro
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0208532
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author João Arthur Alcântara
Paulo Sérgio Bernarde
Jacqueline Sachett
Ageane Mota da Silva
Samara Freire Valente
Henry Maia Peixoto
Marcus Lacerda
Maria Regina Oliveira
Ivan Saraiva
Vanderson de Souza Sampaio
Wuelton Marcelo Monteiro
author_facet João Arthur Alcântara
Paulo Sérgio Bernarde
Jacqueline Sachett
Ageane Mota da Silva
Samara Freire Valente
Henry Maia Peixoto
Marcus Lacerda
Maria Regina Oliveira
Ivan Saraiva
Vanderson de Souza Sampaio
Wuelton Marcelo Monteiro
author_sort João Arthur Alcântara
collection DOAJ
description Despite significant and successful efforts in Brazil regarding snakebites in the areas of research, antivenom manufacture and quality control, training of health professionals in the diagnosis and clinical management of bites, little is known about determinants of snakebites incidence in order to further plan interventions to reduce the impact of this medical condition. Understanding the complexity of ecological interactions in a geographical region is important for prediction, prevention and control measures of snakebites. This investigation aims to describe spatial distribution and identify environmental determinants of human envenoming by lancehead pit vipers (Bothrops genus), in the Brazilian Amazon. Aggregated data by the municipality was used to analyze the spatial distribution of Bothrops bites cases and its relationship with geographic and environmental factors. Eight geo-environmental factors were included in the analysis as independent variables: (1) tree canopy loss increase; (2) area with vegetation cover; (3) area covered by water bodies; (4) altitude; (5) precipitation; (6) air relative humidity; (7) soil moisture; and (8) air temperature. Human envenoming by lancehead pit vipers (Bothrops genus) in the Amazon region is more incident in lowlands [Adjusted regression coefficient [ARC] -0.0007 (IC95%: -0.001; -0.0006), p<0.0001], with high preserved original vegetation cover [ARC 0.0065 (IC95%: 0.0071; 0.0060), p<0.0001], with heaviest rainfall [ARC 0.0001 (IC95%: 0.00009; 0.0001), p<0.0001] and higher air relative humidity [ARC 0.0082 (IC95%: 0.0108; 0.0056), p<0.0001]. This association is interpreted as the result of the higher prey availability and further abundance of pit vipers in such landscapes.
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spelling doaj.art-0fb37a41e597496baf19b6a986f07e792022-12-21T19:15:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-011312e020853210.1371/journal.pone.0208532Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.João Arthur AlcântaraPaulo Sérgio BernardeJacqueline SachettAgeane Mota da SilvaSamara Freire ValenteHenry Maia PeixotoMarcus LacerdaMaria Regina OliveiraIvan SaraivaVanderson de Souza SampaioWuelton Marcelo MonteiroDespite significant and successful efforts in Brazil regarding snakebites in the areas of research, antivenom manufacture and quality control, training of health professionals in the diagnosis and clinical management of bites, little is known about determinants of snakebites incidence in order to further plan interventions to reduce the impact of this medical condition. Understanding the complexity of ecological interactions in a geographical region is important for prediction, prevention and control measures of snakebites. This investigation aims to describe spatial distribution and identify environmental determinants of human envenoming by lancehead pit vipers (Bothrops genus), in the Brazilian Amazon. Aggregated data by the municipality was used to analyze the spatial distribution of Bothrops bites cases and its relationship with geographic and environmental factors. Eight geo-environmental factors were included in the analysis as independent variables: (1) tree canopy loss increase; (2) area with vegetation cover; (3) area covered by water bodies; (4) altitude; (5) precipitation; (6) air relative humidity; (7) soil moisture; and (8) air temperature. Human envenoming by lancehead pit vipers (Bothrops genus) in the Amazon region is more incident in lowlands [Adjusted regression coefficient [ARC] -0.0007 (IC95%: -0.001; -0.0006), p<0.0001], with high preserved original vegetation cover [ARC 0.0065 (IC95%: 0.0071; 0.0060), p<0.0001], with heaviest rainfall [ARC 0.0001 (IC95%: 0.00009; 0.0001), p<0.0001] and higher air relative humidity [ARC 0.0082 (IC95%: 0.0108; 0.0056), p<0.0001]. This association is interpreted as the result of the higher prey availability and further abundance of pit vipers in such landscapes.https://doi.org/10.1371/journal.pone.0208532
spellingShingle João Arthur Alcântara
Paulo Sérgio Bernarde
Jacqueline Sachett
Ageane Mota da Silva
Samara Freire Valente
Henry Maia Peixoto
Marcus Lacerda
Maria Regina Oliveira
Ivan Saraiva
Vanderson de Souza Sampaio
Wuelton Marcelo Monteiro
Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
PLoS ONE
title Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
title_full Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
title_fullStr Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
title_full_unstemmed Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
title_short Stepping into a dangerous quagmire: Macroecological determinants of Bothrops envenomings, Brazilian Amazon.
title_sort stepping into a dangerous quagmire macroecological determinants of bothrops envenomings brazilian amazon
url https://doi.org/10.1371/journal.pone.0208532
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