ArticleParasites & vectors2025
Should I dive or should I float? Behavioural plasticity of Aedes mariae pupae under predation threat.
Article in Parasites & vectors, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Evaluating the Effect of Sampling Scale on Mosquito Virome Characterization Using PacBio HiFi Long-Read Metagenomics.Insects · 2026Article
- Distinct Swimming Behaviours in Pupae ofEcology and evolution · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundThe pupal stage in holometabolous insects is a critical transition between larval and adult forms, during which feeding ceases and survival depends on stored energy reserves. Mosquito pupae exhibit active diving behaviour in response to threats, which is energetically costly due to their positive buoyancy. Whether pupae are able to adjust diving behaviour according to environmental conditions, balancing predator avoidance and energy expenditure, remains poorly understood. Here, we investigated how water salinity affects the diving behaviour of Aedes mariae pupae, a species inhabiting Mediterranean rock pools characterised by highly variable salinity conditions.
methodsPupae were maintained and tested in two salinity conditions: low (50%) and high (150%). Diving behaviour was recorded following an automated mechanical stimulus, and we measured: (i) time spent underwater, (ii) pupal activity (i.e. the number of abdominal movements during the immersion and the ratio of movements to time spent underwater) and (iii) the proportion of time spent by a pupa at different depths along the height of the water column (space use).
resultsWe found that pupae in high-salinity conditions spent 20.6% less time underwater than those in low salinity. They also performed fewer abdominal movements during dives but showed no significant differences in movements per unit time. Analysis of space use showed that pupae in high salinity spent more time in the upper part of the water column and less time in the middle and lower parts.
conclusionsAe. mariae pupae modify their diving behaviour in response to different salinity conditions, adopting energy-efficient responses to external stimuli that promote survival in variable habitats. These findings highlight the importance of pupal behavioural flexibility for overall fitness and underscore the need to investigate pupal behavioural plasticity, which remains largely unexplored.
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