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<p>Forest conversion may exert multiple selective pressures and lead to morphological differences among organisms. Despite considerable research on morphological responses to forest loss, gaps remain regarding the effects of practices such as forestry on insect morphology. Here, we compared the intraspecific morphological variation in two damselfly species (<i>Acanthagrion lancea</i> and <i>Telebasis carmesina</i>; Odonata, Coenagrionidae) between mixed-ombrophilous forests (MOF) and tree plantations in the Brazilian Atlantic Forest. We assessed body shape (head and thorax width, abdominal length) and wing morphology traits (area and aspect ratio) and predicted that trait variability would be reduced in plantations. In both species, trait variation patterns differed between forest types and were lower in plantations. Specific traits also differed between forest types: <i>A</i>. <i>lancea</i> showed wider thoraces, longer abdomens and larger wing areas in MOF, while <i>T</i>. <i>carmesina</i> showed higher wing area and aspect ratio in plantations. Differences in damselfly morphological variability are likely the outcome of limited plant diversity and altered microclimate conditions in plantations.</p>

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Exotic tree plantations drive reduction in morphological variation of damselfly species in the southern Brazilian Atlantic Forest

  • 期刊论文

  • 发表日期：

    2025年6月10日

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  • Mateus Marques Pires,
  • Giulia Wommer,
  • Cléber Sganzerla,
  • Göran Sahlén,
  • Eduardo Périco

摘要

Forest conversion may exert multiple selective pressures and lead to morphological differences among organisms. Despite considerable research on morphological responses to forest loss, gaps remain regarding the effects of practices such as forestry on insect morphology. Here, we compared the intraspecific morphological variation in two damselfly species (Acanthagrion lancea and Telebasis carmesina; Odonata, Coenagrionidae) between mixed-ombrophilous forests (MOF) and tree plantations in the Brazilian Atlantic Forest. We assessed body shape (head and thorax width, abdominal length) and wing morphology traits (area and aspect ratio) and predicted that trait variability would be reduced in plantations. In both species, trait variation patterns differed between forest types and were lower in plantations. Specific traits also differed between forest types: A. lancea showed wider thoraces, longer abdomens and larger wing areas in MOF, while T. carmesina showed higher wing area and aspect ratio in plantations. Differences in damselfly morphological variability are likely the outcome of limited plant diversity and altered microclimate conditions in plantations.