Tracking Aedes aegypti (Diptera: Culicidae) Larval Behavior Across Development: Effects of Temperature and Nutrients on Individuals' Foraging Behavior

Journal of Medical Entomology
Michael H Reiskind, M Shawn Janairo

Abstract

Immature mosquitoes alter their foraging behavior in response to variation in nutrients, predators, and temperature, with consequences on the adult stage where pathogens are transmitted. These patterns of behavior have not been described with respect to both developmental stage and environmental variation, nor has behavior been examined within an individual across instars. We hypothesized that individual larvae have distinct behavioral syndromes, and predict that the rank of foraging activity in the third instar will be correlated with foraging activity in the fourth instar for an individual across all conditions. We also hypothesized that individuals that fail to achieve adulthood forage more intensely than those that will emerge due to the need for greater resources. To examine these hypotheses, we conducted an experiment in which we exposed 96 individual Aedes aegypti L. (Diptera: Culicidae) larvae to four combinations of temperature and nutrients. We recorded larvae in the third and fourth instar, and generated time budgets of active and passive foraging behaviors. We found correlations between individual behavior in the third and fourth instar when conditions were the most stressful (cool temperatures and low nutrients). C...Continue Reading

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Citations

Nov 21, 2019·Proceedings. Biological Sciences·Eleanor K LutzJeffrey A Riffell
Mar 5, 2020·The Journal of Experimental Biology·Eleanor K LutzJeffrey A Riffell
Jul 28, 2020·Insect Molecular Biology·Robert M Huff, R Jason Pitts
Sep 11, 2020·BioMed Research International·José Domingos FontanaCynara de Melo Rodovalho
Jun 30, 2021·Journal of the American Mosquito Control Association·Drew David Reinbold-Wasson, Michael Hay Reiskind

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