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June 17, 2026Scientific ReportsOpen Access

Urbanization drives phenotypic differences but not asymmetry in the damselfly Ischnura elegans

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Authors

SŚSzymon ŚniegulaGWGuillaume Wos

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Overview

Randomized trial reveals urbanization shapes damselfly traits without increasing instability.

Key Points

  • This research examines how urbanization influences the phenotype of the damselfly Ischnura elegans, focusing on body size and wing morphology.
  • Collected ~800 adult damselflies across 22 ponds on an urbanization gradient.
  • Assessed environmental parameters like impervious surface percentage, and recorded traits including body size and wing morphology.
  • Evaluated fluctuating asymmetry of wings to measure developmental instability.
  • Urban individuals displayed decreased size, with reduced adult and thorax lengths; urban males had notably shorter femur lengths.
  • Wing shape variation increased along the urbanization gradient, particularly in females.
  • Fluctuating asymmetry did not increase with urbanization and varied by pond.

Cite This Study

Śniegula et al. (2026) studied this question.

synapsesocial.com/papers/6a323a58d50b63ecad2056dfhttps://doi.org/10.1038/s41598-026-57538-7
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