論文

査読有り
2013年7月

How pollen organic matter enters freshwater food webs

LIMNOLOGY AND OCEANOGRAPHY
  • Helene Masclaux
  • ,
  • Marie-Elodie Perga
  • ,
  • Maiko Kagami
  • ,
  • Christian Desvilettes
  • ,
  • Gilles Bourdier
  • ,
  • Alexandre Bec

58
4
開始ページ
1185
終了ページ
1195
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.4319/lo.2013.58.4.1185
出版者・発行元
WILEY-BLACKWELL

Huge amounts of pollen can accumulate at the air-water interface during the floral bloom of wind-pollinated trees. We hypothesized that such pollen rains act as subsidy pulses, promoting the development of a neustonic microbial food web and the transfer of pollen organic carbon to aquatic consumers. During a pine pollen rain event on an oxbow lake, microorganism concentrations were by far higher in the neuston, where pollen grains accumulated, than in the seston. Zooplankton species were also unevenly distributed in the two compartments. Bulk isotope and isotopes of fatty acid analyses revealed trophic partitioning among these zooplankton species, with some of the taxa foraging specifically on neuston, where they benefit from pollen-derived carbon. Microorganisms were identified as a key element in the trophic upgrading of pollen food quality and in the transfer of pollen carbon to metazoan consumers. Pollen rains may thus contribute, as an allochthonous food pulse, to aquatic production at specific seasons, but they may also act as a structuring factor in lake habitats.

リンク情報
DOI
https://doi.org/10.4319/lo.2013.58.4.1185
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000322514600004&DestApp=WOS_CPL
URL
https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2013.58.4.1185
ID情報
  • DOI : 10.4319/lo.2013.58.4.1185
  • ISSN : 0024-3590
  • eISSN : 1939-5590
  • Web of Science ID : WOS:000322514600004

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