| 要旨トップ | ESJ69 シンポジウム 一覧 | 日本生態学会第69回全国大会 (2022年3月、福岡) 講演要旨
ESJ69 Abstract

シンポジウム S10  3月18日 9:00-12:00 Room A, 現地開催/ライブ配信あり/見逃し配信対応

動物と栄養塩動態の結びつきを解き明かす
Linkage of consumer and nutrient dynamics in natural ecosystems

宇野裕美（北海道大学）, 大西雄二（京都大学生態学研究センター）, 福島慶太郎（京都大学生態学研究センター）
Hiromi UNO（Hokkaido University）, Yuji ONISHI（Center for Ecological Research, Kyoto University）, Keitaro FUKUSHIMA（Center for Ecological Research, Kyoto University）

Nutrients play important roles in natural ecosystems supporting primary production, and subsequently secondary production of consumers. Oppositely, recent studies have shown that consumers can influence on nutrient cycling in various ways. Grazing of vegetation by consumers can alter the nutrient dynamics through top-down control. Ingestion and excretion by consumers can enhance nutrient cycling. In this symposium, we will introduce some examples where animals exhibit large influence on nutrient cycling. We will first introduce cases where terrestrial animals influence on nutrient output from the watershed. Then introduce cases where aquatic consumers influence nutrient dynamics in water. Then finally, we will introduce a cutting-edge analytical technique to study the consumer driven nutrient dynamics.
Commentator: Jotaro Urabe

[S10-1]
Influence of wild animals on stream ecosystems *Amanda SUBALUSKY（University of Florida）

[S10-2]
Deer overgrazing alters stream water chemistry in forested catchments; importance of understory vegetation in nutrient retention *Keitaro FUKUSHIMA（Kyoto University）, Shota SAKAGUCHI（Kyoto University）, Masaru SAKAI（NIES）, Mizuki INOUE（Nihon University）, Daisuke FUJIKI（University of Hyogo）, Hikaru NAKAGAWA（Kyoto University）, Michimasa YAMASAKI（Kyoto University）, Masae ISHIHARA（Kyoto University）, Atsushi TAKAYANAGI（Kyoto University）

[S10-3]
Animal-mediated nutrient cycling in aquatic ecosystems *Michael VANNI（Miami University）

[S10-4]
Direct and indirect effects of amphidromous shrimps on nutrient mineralization in streams in Japan *Hiromi UNO（Hokkaido University）, Keitaro FUKUSHIMA（Kyoto University）, Mariko KAWAMURA（Kyoto University）, Akira KURASAWA（Kyoto University）, Takuya SATO（Kyoto University）

[S10-5]
Linkage of calcium dynamics and forest invertebrates -application of strontium isotope analysis- *Tamihisa OTA（University of Toyama）, Ikuyo SAEKI（University of Tsukuba）, Tsutom HIURA（Tokyo University）

[S10-6]
Effect of migratory fishes from Lake Biwa on stream communities *Akira KURASAWA（Kyoto University）, Yuji ONISHI（Kyoto University）, Keitaro FUKUSHIMA（Kyoto University）, Keisuke KOBA（Kyoto University）, Hiromi UNO（Hokkaido University）

[S10-7]
Stable nitrogen isotopic signatures of ammonium in fish excretion and stream waters. *Yuji ONISHI（Kyoto University）, Hiromi UNO（Hokkaido University）, Akira KURASAWA（Kyoto University）, Keitaro FUKUSHIMA（Kyoto University）, Keisuke KOBA（Kyoto University）

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