A influência da elevação relativa do terreno sobre a infestação larvária pelo mosquito Aedes Aegypti

Abstract

The objective of this workwas to examine the relationship between Aedes aegyptimosquito neighbourhood presencewith databases of slope elevation and environmental declivityin Montes Claros, Minas Gerais. Knowledge of this relationship has implications for urban quality and social health geography. The study methodology consisted of: the acquisition, organisation and spatialisation of databases for positive the presence of Aedes aegypti; th e manipulation of digital modeling elevation data from Topodata; the application of Moran’s Index; and an evaluation of the associative correspondence between the variables, u si n g a multiple linear regression model. The coefficient of determination (R²) was 0.973, indica ti n g a high predictive power for the combinationof variables. The Breteau Index from 2 0 1 6 h a d the best explicative power (p < 0.05) among the set of databases to explain the larval infestation that occurred in 2017. Terrain elevation had a significant association (p < 0.05) with infestation, and was negatively correlated with the partial regression coefficient (-6 .4 6 0 e t= -2.157). In the second model, the maximum elevation was significant (p < 0.08). As such, results suggest that in a relation of the previous period with the following one, in the areas of greater larva incidence, the lower the mean slope elevation, the larger the mosquito infestation.