論文

査読有り
2017年11月27日

Spatial heterogeneity in induced defense of Brachionus calyciflorus within a single lake caused by a bed of floating-leaved macrophyte Trapa species

Limnology
  • Yurie Otake
  • ,
  • Maiko Kagami
  • ,
  • Takeo Kuriyama
  • ,
  • Takehito Yoshida

20
開始ページ
1
終了ページ
10
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s10201-017-0534-y
出版者・発行元
Springer Tokyo

While induced defense of aquatic organisms against predators has been considerably studied by both laboratory and field research, our understanding is still limited about, for example, whether induced defense is variable between microhabitats within the same lake and how multiple predators influence induced defense in the natural environment. Here, we examined whether a rotifer species, Brachionus calyciflorus showed a different development degree of induced defenses against its predator Asplanchna and cyclopoid copepods between the microhabitats of a macrophyte bed consisting of Trapa species and open water. B. calyciflorus was more abundant and had larger posterolateral spines as a defensive trait in open water than in the Trapa bed. Asplanchna was more abundant in open water than in the Trapa bed, whereas cyclopoids were more abundant in the Trapa bed. Both of the predators significantly affected the development of the defense trait. The effect of Asplanchna on the defense trait was positive, whereas the effect of cyclopoids was negative. Thus, a spatial difference in the development degree of induced defense between the microhabitats occurred as the dense Trapa bed influenced the abundance of the two predators. The results also suggest that the induced defense of B. calyciflorus was effective in reducing the predation pressure from Asplanchna while B. calyciflorus was not able to avoid predation by cyclopoids in the Trapa bed.

リンク情報
DOI
https://doi.org/10.1007/s10201-017-0534-y
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85035138764&origin=inward
ID情報
  • DOI : 10.1007/s10201-017-0534-y
  • ISSN : 1439-8621
  • SCOPUS ID : 85035138764

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