Individual and combined suppressive effects of submerged and floating-leaved macrophytes on algal blooms

Mayumi Seto, Noriko Takamura, Yoh Iwasa

研究成果: Contribution to journalArticle査読

18 被引用数 (Scopus)

抄録

Shallow lakes and ponds are often characterised either by clear water with abundant submerged macrophytes or by turbid water with abundant phytoplankton. Blooms of toxic filamentous blue-green algae (cyanobacteria) often dominate the phytoplankton community in eutrophic lakes, which threatens ecological functions and biodiversity of freshwater ecosystems. We studied a simple lake model in order to evaluate individual and combined suppressive effects of rooted submerged and rooted floating-leaved macrophytes on algal blooms. Floating-leaved plants are superior competitors for light, whereas submerged plants absorb and reduce available phosphorus in a water column that rooted floating-leaved plants exploit to a lesser extent. We found that mixed vegetation that includes both submerged and floating-leaved plants is more resistant than vegetation comprised by a single plant type to algal invasion triggered by phosphorus loading. In addition, competitive exclusion of submerged plants by floating-leaved plants may promote an algal bloom. These predictions were confirmed by the decision tree analysis of field data from 35 irrigation ponds in Hyogo Prefecture, Japan.

本文言語英語
ページ(範囲)122-133
ページ数12
ジャーナルJournal of Theoretical Biology
319
DOI
出版ステータス出版済み - 2 1 2013

All Science Journal Classification (ASJC) codes

  • 医学(全般)
  • 免疫学および微生物学(全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 農業および生物科学(全般)
  • モデリングとシミュレーション
  • 統計学および確率
  • 応用数学

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