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Peer-reviewedCC BY 4.0Medical and Veterinary Entomology

Temperature and precipitation differently influence entomological indices based on larval or adult sampling

  • Angie Nataly Aire Laureano1
  • André de Souza Leandro2
  • Rafael Maciel‐de‐Freitas3,4
  • Wagner Antonio Chiba‐de‐Castro1
4 affiliations
  1. 1Latin American Institute of Life and Natural Sciences Federal University for Latin American Integration (UNILA) Foz do Iguaçu Paraná Brazil
  2. 2Centro de Controle de Zoonoses Secretaria Municipal de Saúde de Foz do Iguaçu Foz do Iguaçu Paraná Brazil
  3. 3Laboratório de Mosquitos Transmissores de Hematozoários Instituto Oswaldo Cruz, Fiocruz Rio de Janeiro Rio de Janeiro Brazil
  4. 4Department of Arbovirology and Entomology Bernhard Nocht Institute for Tropical Medicine Hamburg Germany
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Abstract

Dengue is an arboviral disease widely distributed in the world, with high incidence in tropical and subtropical regions. The population dynamics of Aedes aegypti (Diptera: Culicidae), the main vector of the virus, are strongly influenced by climatic variables that modulate the occurrence and intensity of infestations. This study evaluated the influence of temperature and precipitation on the presence of the vector, integrating entomological and meteorological data. Larval and adult indicators obtained through Rapid Assessment of Larva Index (LIRAa) and Adultrap traps were used, analysed by generalized linear mixed models (GLMMs) and Akaike information criterion (AIC) in the municipality of Foz do Iguaçu, Brazil. The results demonstrated a significant association between larval indices (House Infestation Index [HI] and Breteau Index [BI]) and the climatic variables, indicating that the increase in temperature and precipitation favours mosquito infestation. In contrast, the adult indices (Trap Positivity Index [TPI] and Adult Density Index [ADI]) did not show a statistically significant relationship, suggesting behavioural adjustments of the vector in face of environmental conditions. The HI model indicated temperature as the determining factor in the presence of immature stages. These findings reinforce the usefulness of entomological monitoring, highlighting its importance in integrated vector‐control strategies that consider climatic seasonality, especially thermal variation.

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Cite

BibTeXRIS
BibTeX
@article{laureano2026temperature,
  title = {{Temperature and precipitation differently influence entomological indices based on larval or adult sampling}},
  author = {Angie Nataly Aire Laureano and André de Souza Leandro and Rafael Maciel‐de‐Freitas and Wagner Antonio Chiba‐de‐Castro},
  journal = {Medical and Veterinary Entomology},
  year = {2026},
  month = jul,
  doi = {10.1111/mve.70099},
  url = {https://doi.org/10.1111/mve.70099},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Temperature and precipitation differently influence entomological indices based on larval or adult sampling
AU  - Angie Nataly Aire Laureano
AU  - André de Souza Leandro
AU  - Rafael Maciel‐de‐Freitas
AU  - Wagner Antonio Chiba‐de‐Castro
PY  - 2026
DA  - 2026/07/28
JO  - Medical and Veterinary Entomology
DO  - 10.1111/mve.70099
UR  - https://doi.org/10.1111/mve.70099
AB  - Dengue is an arboviral disease widely distributed in the world, with high incidence in tropical and subtropical regions. The population dynamics of Aedes aegypti (Diptera: Culicidae), the main vector of the virus, are strongly influenced by climatic variables that modulate the occurrence and intensity of infestations. This study evaluated the influence of temperature and precipitation on the presence of the vector, integrating entomological and meteorological data. Larval and adult indicators obtained through Rapid Assessment of Larva Index (LIRAa) and Adultrap traps were used, analysed by generalized linear mixed models (GLMMs) and Akaike information criterion (AIC) in the municipality of Foz do Iguaçu, Brazil. The results demonstrated a significant association between larval indices (House Infestation Index [HI] and Breteau Index [BI]) and the climatic variables, indicating that the increase in temperature and precipitation favours mosquito infestation. In contrast, the adult indices (Trap Positivity Index [TPI] and Adult Density Index [ADI]) did not show a statistically significant relationship, suggesting behavioural adjustments of the vector in face of environmental conditions. The HI model indicated temperature as the determining factor in the presence of immature stages. These findings reinforce the usefulness of entomological monitoring, highlighting its importance in integrated vector‐control strategies that consider climatic seasonality, especially thermal variation.
SN  - 0269-283X
SN  - 1365-2915
ER  -