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SPATIAL DISTRIBUTION AND INTERACTIONS BETWEEN MOSQUITOES (DIPTERA: CULICIDAE) AND CLIMATIC FACTORS IN THE AMAZON, WITH EMPHASIS ON THE TRIBE MANSONIINI
Interações entre mosquitos (Diptera: Culicidae)
Fatores climáticos na Amazônia
Destaque na tribo Mansoniini
Interactions between mosquitoes (Diptera: Culicidae)
Climatic factors in the Amazon
Emphasis on the tribe Mansoniini
Author
Affilliation
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil / Universidade Federal Rural do Rio de janeiro. Programa de Pós‑Graduação em Biologia Animal. Seropédica, RJ, Brasil.
Universidade do Estado do Rio de Janeiro. Faculdade de Ciências Biológicas e Saúde. Departamento de Biologia. Campo Grande, RJ, Brasil.
Instituto Nacional de Pesquisas da Amazônia- INPA. Petrópolis, Manaus, AM, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Energia Sustentável do Brasil, ESBR. Distrito de Jaci Paraná, Porto Velho, RO, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Universidade do Estado do Rio de Janeiro. Faculdade de Ciências Biológicas e Saúde. Departamento de Biologia. Campo Grande, RJ, Brasil.
Instituto Nacional de Pesquisas da Amazônia- INPA. Petrópolis, Manaus, AM, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Energia Sustentável do Brasil, ESBR. Distrito de Jaci Paraná, Porto Velho, RO, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Diptera. Rio de Janeiro, RJ, Brasil.
Abstract
This work aimed to evaluate the spatial distribution of mosquitoes in different seasonal periods
and the interaction between climatic factors and the abundance of mosquitoes, especially those
belonging to the tribe Mansoniini in the area surrounding the Amazon hydroelectric production region
(Jirau-HP) of Rondônia state, Brazil. Mosquito specimens were collected in May, July, October, and
December 2018, and April, July, September, and November 2019, over periods of three alternating
days during the hours of 6:00 p.m. to 8:00 p.m. Mosquito sampling was performed using automatic
CDC and Shannon light traps. Canonical correspondence analysis (CCA), combined with Monte
Carlo permutations, was used to evaluate the correlation between climatic variables and species
distribution. In addition, non-metric multidimensional scaling (NMDS) was used to verify the similarity
among the sampled communities from the different collections. After analyzing the total mosquito
fauna at all sampling points, 46,564 specimens were identified, with Mansonia dyari showing the
highest relative abundance in 2018 (35.9%). In contrast, Mansonia titillans had the highest relative
abundance in 2019 (25.34%), followed by Mansonia iguassuensis (24.26%). The CCA showed that
maximum temperature significantly influenced the distribution of mosquito populations in the study
area (p = 0.0406). The NMDS showed that sampling carried out in the rainy and dry seasons formed
two distinct groups. There was a significant correlation between species richness and cumulative
precipitation 15 days before the sampling period (
R2 = 58.39%; p = 0.0272). Thus, both temperature and
precipitation affected mosquito population dynamics. The effect of rainfall on mosquito communities
may be due to variations in habitat availability for immature forms.
Keywords in Portuguese
Distribuição espacialInterações entre mosquitos (Diptera: Culicidae)
Fatores climáticos na Amazônia
Destaque na tribo Mansoniini
Keywords
Spatial distributionInteractions between mosquitoes (Diptera: Culicidae)
Climatic factors in the Amazon
Emphasis on the tribe Mansoniini
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