Predation risk and resource availability interactively affect the oviposition behavior of Aedes aegypti

Mosquitoes transmit viruses that affect public health in tropical regions. Identifying factors that influence their fitness can help control mosquito-borne diseases. We investigated the impacts of predation risk effects, from a fish predator, and food availability on the oviposition behavior of Aede...

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Bibliographic Details
Published in:Hydrobiologia 2024-09, Vol.851 (16), p.3869-3879
Main Authors: Custódio, Jane Larissa de Melo, Jorge, Jean Patrick da Silva, Jorge, Jaqueiuto da Silva, Freire, Renato César de Melo, Brambilla, Paula Blandy Tissot, Guariento, Rafael Dettogni, Caliman, Adriano, Carneiro, Luciana Silva
Format: Article
Language:English
Subjects:
Aedes aegypti
Aquatic insects
Availability
Biomedical and Life Sciences
Ecology
Egg laying
Fish
Food
Food availability
Food supply
Freshwater & Marine Ecology
Interspecific relationships
Life Sciences
Mosquitoes
Oviposition
Predation
Predators
Primary Research Paper
Public health
Resource availability
Risk management
Tropical environment
Tropical environments
Vector-borne diseases
Viruses
Zoology
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Summary:Mosquitoes transmit viruses that affect public health in tropical regions. Identifying factors that influence their fitness can help control mosquito-borne diseases. We investigated the impacts of predation risk effects, from a fish predator, and food availability on the oviposition behavior of Aedes aegypti. We hypothesize that predation risk and food availability interactively affect Ae. aegypti oviposition. Gravid Ae. aegypti females were offered oviposition sites with all possible combinations of predation risk (with vs. without predator cues) and food availability (low vs. high). We found a significant interaction between predation risk and food availability. The magnitude of oviposition and the probability of egg laying in high food availability treatments exceeded the values of low food availability treatments, but only in treatments without predation risk. Predation risk critically modulated the effects of food availability on the oviposition of Ae. aegypti. This study demonstrates the interplay between predation risk and food availability in controlling mosquito-borne diseases.
ISSN:0018-8158
1573-5117
DOI:10.1007/s10750-024-05543-0