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<p><i>Potamogeton crispus</i> L., an aquatic plant, is newly identified as a host for <i>Parapoynx diminutalis</i>, an Asian moth known for its aquatic larvae. Samples were collected from Khamariya Village, Madhya Pradesh, India, and <i>P. diminutalis</i> was confirmed using NCBI BLAST and phylogenetic analysis (PP777628), clustering with a strongly supported clade of reference sequences (99.3% similarity). Four surveys were conducted monthly in 2024: March (Survey 1, S1), April (Survey 2, S2), May (Survey 3, S3), and June (Survey 4, S4). Morphological and behavioral observations confirmed that <i>P. diminutalis</i> larvae defoliate <i>P. crispus</i> by feeding from within silk-bound cases. The Whittaker plot illustrated variations in abundance and dominance across four surveys, with the steep slope in S1 depicting the highest abundance and absence in S4. NMDS analysis highlighted ecological dynamics, showing similarity between S1 and S2, while S3 diverged due to environmental changes. This study documents the expansion of <i>P. diminutalis</i> host range to <i>P. crispus</i> and emphasizes the need for further research to manage its ecological impact on aquatic ecosystems.</p>

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Ecological Insights into Parapoynx diminutalis Snellen Populations and Their Association with Potamogeton crispus L.

  • 期刊论文

  • 发表日期：

    2025年7月16日

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  • Mudagadde G. Deeksha,
  • Ramani Srinivasan,
  • Sahadeo Indaldas Kuwardadra,
  • Gandhi R. Gracy

摘要

Potamogeton crispus L., an aquatic plant, is newly identified as a host for Parapoynx diminutalis, an Asian moth known for its aquatic larvae. Samples were collected from Khamariya Village, Madhya Pradesh, India, and P. diminutalis was confirmed using NCBI BLAST and phylogenetic analysis (PP777628), clustering with a strongly supported clade of reference sequences (99.3% similarity). Four surveys were conducted monthly in 2024: March (Survey 1, S1), April (Survey 2, S2), May (Survey 3, S3), and June (Survey 4, S4). Morphological and behavioral observations confirmed that P. diminutalis larvae defoliate P. crispus by feeding from within silk-bound cases. The Whittaker plot illustrated variations in abundance and dominance across four surveys, with the steep slope in S1 depicting the highest abundance and absence in S4. NMDS analysis highlighted ecological dynamics, showing similarity between S1 and S2, while S3 diverged due to environmental changes. This study documents the expansion of P. diminutalis host range to P. crispus and emphasizes the need for further research to manage its ecological impact on aquatic ecosystems.