Growth and development of Aedes aegypti larvae at limiting food concentrations

Tal Levi; Eitan Ben-Dov; Preeti Shahi; Dov Borovsky; Arieh Zaritsky

doi:10.1016/j.actatropica.2014.02.001

Growth and development of Aedes aegypti larvae at limiting food concentrations

Tal Levi, Eitan Ben-Dov, Preeti Shahi, Dov Borovsky, Arieh Zaritsky

Department of Life Sciences

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Mosquitoes have a complex life-cycle with dramatic changes in shape, function, and habitat. Aedes aegypti was studied by growing individual larvae at different concentrations of a defined rich food source. At higher food concentrations, rate of larval growth was faster, but the time required for 4th instar larvae to molt into the pupal stage was unexpectedly extended. These opposite tendencies resulted in constant times from hatching to pupation and up to adult eclosion at permissive food concentrations. The results demonstrate that nutritional conditions of 4th instar larvae impact initiation of the first metamorphic molt.

Original language	English
Pages (from-to)	42-44
Number of pages	3
Journal	Acta Tropica
Volume	133
Issue number	1
DOIs	https://doi.org/10.1016/j.actatropica.2014.02.001
State	Published - 1 May 2014

Keywords

Aedes aegypti
Food limitation
Mortality
Mosquito development
Timing of pupation

ASJC Scopus subject areas

Parasitology
Veterinary (miscellaneous)
Insect Science
Infectious Diseases

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10.1016/j.actatropica.2014.02.001

Cite this

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title = "Growth and development of Aedes aegypti larvae at limiting food concentrations",

abstract = "Mosquitoes have a complex life-cycle with dramatic changes in shape, function, and habitat. Aedes aegypti was studied by growing individual larvae at different concentrations of a defined rich food source. At higher food concentrations, rate of larval growth was faster, but the time required for 4th instar larvae to molt into the pupal stage was unexpectedly extended. These opposite tendencies resulted in constant times from hatching to pupation and up to adult eclosion at permissive food concentrations. The results demonstrate that nutritional conditions of 4th instar larvae impact initiation of the first metamorphic molt.",

keywords = "Aedes aegypti, Food limitation, Mortality, Mosquito development, Timing of pupation",

author = "Tal Levi and Eitan Ben-Dov and Preeti Shahi and Dov Borovsky and Arieh Zaritsky",

note = "Funding Information: This work was partially supported by a grant (# 2007-037 ) of the Binational Science Foundation (BSF), Jerusalem (to AZ and DB), and a scholarship of the Israel Ministry for Foreign Affairs (to PS). Monica Einav is gratefully acknowledged for technical assistance, and Traders Protein (ADM/Southern Cotton Oil, Lubbock, Texas, USA), for generous supply of Pharmamedia.",

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doi = "10.1016/j.actatropica.2014.02.001",

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AU - Levi, Tal

AU - Ben-Dov, Eitan

AU - Shahi, Preeti

AU - Borovsky, Dov

AU - Zaritsky, Arieh

N1 - Funding Information: This work was partially supported by a grant (# 2007-037 ) of the Binational Science Foundation (BSF), Jerusalem (to AZ and DB), and a scholarship of the Israel Ministry for Foreign Affairs (to PS). Monica Einav is gratefully acknowledged for technical assistance, and Traders Protein (ADM/Southern Cotton Oil, Lubbock, Texas, USA), for generous supply of Pharmamedia.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Mosquitoes have a complex life-cycle with dramatic changes in shape, function, and habitat. Aedes aegypti was studied by growing individual larvae at different concentrations of a defined rich food source. At higher food concentrations, rate of larval growth was faster, but the time required for 4th instar larvae to molt into the pupal stage was unexpectedly extended. These opposite tendencies resulted in constant times from hatching to pupation and up to adult eclosion at permissive food concentrations. The results demonstrate that nutritional conditions of 4th instar larvae impact initiation of the first metamorphic molt.

AB - Mosquitoes have a complex life-cycle with dramatic changes in shape, function, and habitat. Aedes aegypti was studied by growing individual larvae at different concentrations of a defined rich food source. At higher food concentrations, rate of larval growth was faster, but the time required for 4th instar larvae to molt into the pupal stage was unexpectedly extended. These opposite tendencies resulted in constant times from hatching to pupation and up to adult eclosion at permissive food concentrations. The results demonstrate that nutritional conditions of 4th instar larvae impact initiation of the first metamorphic molt.

KW - Aedes aegypti

KW - Food limitation

KW - Mortality

KW - Mosquito development

KW - Timing of pupation

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Growth and development of Aedes aegypti larvae at limiting food concentrations

Abstract

Keywords

ASJC Scopus subject areas

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