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Quiescence in

Luciana O Oliva1,2, Roseli La Corte3, Marcelo O Santana4

  • 1Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, Brazil. oliva.luciana@gmail.com.

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|September 12, 2018
PubMed
Summary
This summary is machine-generated.

Aedes aegypti mosquito quiescence impacts population dynamics and disease vector control. Egg viability and development time are reduced by quiescence, with varying costs between Brazilian populations.

Keywords:
Culicidaebiological cycledesiccation resistancedevelopmentegg dormancyfitnessmosquitoplasticityreproduction

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Area of Science:

  • Medical Entomology
  • Population Ecology
  • Disease Vector Control

Background:

  • Aedes aegypti mosquitoes employ embryonic quiescence to survive adverse conditions, influencing their geographic spread and control.
  • Understanding quiescence effects is crucial for managing populations in dengue, chikungunya, and Zika transmission zones.

Purpose of the Study:

  • To evaluate how quiescence affects key biological parameters of Aedes aegypti populations.
  • To assess the implications of these effects on population dynamics and vectorial capacity in Brazil.

Main Methods:

  • Analyzed egg viability, hatching, development, emergence, sex ratio, size, fecundity, and fertility.
  • Utilized eggs stored for varying durations (10 to 160 days) from two Brazilian municipalities.

Main Results:

  • Quiescence reduced egg viability and post-embryonic development time, with greater impact in Aracaju than Recife.
  • Emergence rates varied by population and storage duration; male predominance was observed in both.
  • Hatching time, fecundity, fertility, and adult size were not significantly affected by quiescence duration.

Conclusions:

  • Aedes aegypti populations exhibit intrinsic differences in their response to quiescence.
  • The differential cost of quiescence affects population dynamics, indirectly influencing disease transmission and control strategies.