Isotopic evidence for the spatial heterogeneity of the planktonic food webs in the transition zone between river and lake ecosystems

Hideyuki Doi, Elena I. Zuykova, Shuichi Shikano, Eisuke Kikuchi, Hiroshi Ota, Natalia I. Yurlova, Elena Yadrenkina

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Resources and organisms in food webs are distributed patchily. The spatial structure of food webs is important and critical to understanding their overall structure. However, there is little available information about the small-scale spatial structure of food webs. We investigated the spatial structure of food webs in a lake ecosystem at the littoral transition zone between an inflowing river and a lake. We measured the carbon isotope ratios of zooplankton and particulate organic matter (POM; predominantly phytoplankton) in the littoral zone of a saline lake. Parallel changes in the γ 13C values of zooplankton and their respective POMs indicated that there is spatial heterogeneity of the food web in this study area. Lake ecosystems are usually classified at the landscape level as either pelagic or littoral habitats. However, we showed small-scale spatial heterogeneity among planktonic food webs along an environmental gradient. Stable isotope data is useful for detecting spatial heterogeneity of habitats, populations, communities, and ecosystems.

本文言語English
論文番号222
ジャーナルPeerJ
2013
1
DOI
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • 神経科学(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)

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