Effects of temperature and red tides on sea urchin abundance and species richness over 45 years in southern Japan
概要
Continuous long-term monitoring is important for detecting ecological changes and understanding their causes, including anthropogenic impacts such as climate changes and eutrophication. Nonetheless, such long-term population studies have been rare, especially for sea urchins, which can affect community dynamics owing to their extensive herbivory and large population fluctuations. Here we present a long-term (from 1963 to 2014) dynamics of sea urchins in a fixed quadrat on a lower intertidal rocky flat in Hatakejima Island, southern Japan. We also conducted a complementary survey over the entire island approximately every five years from 1975 to 2013, and a 41-year assay for developmental abnormality of the sea urchin Heliocidaris crassispina using water adjacent to the island. The abundance of three commonest species in this area (H. crassispina, Echinostrephus molaris, and Echinometra spp.) and the richness of urchin species showed large variations, with high numbers in the 1960s and 1970s, followed by an abrupt decline in the late 1970s or early 1980s, and a gradual recovery subsequently. The species abundance and richness in the entire island survey showed good correlations with those in the quadrat census. Statistical analyses indicated that increasing water temperature and red tides were the major factors influencing the dynamics of abundance and species richness. Our studies reveal that anthropogenic environmental changes influence the long-term dynamics in abundance and richness of sea urchins. The data were digitized and transformed to comply with the Darwin Core/OBIS Schema in 2020.
引用方法
Ohgaki, S., T. Kato, N. Kobayashi, H. Tanase, N. H. Kumagai, S. Ishida, T. Nakano, Y. Wada and Y. Yusa (2019) Effects of temperature and red tides on sea urchin abundance and species richness over 45 years in southern Japan. Ecological Indicators, 96, 684-693.
文献情報
データセットの元になった文献など、データを理解する上で重要となる文献の情報を表示しています。
Ohgaki, S., T. Kato, N. Kobayashi, H. Tanase, N. H. Kumagai, S. Ishida, T. Nakano, Y. Wada and Y. Yusa (2019) Effects of temperature and red tides on sea urchin abundance and species richness over 45 years in southern Japan. Ecological Indicators, 96, 684-693.
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ライセンス
To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
連絡先
中野 智之Resource Contact、Resource Creator、Metadata Provider
組織名 : 京都大学 フィールド科学教育研究センター 瀬戸臨海実験所 海洋生態系部門電話番号 : +81-739-42-3515住所 : 649-2211 日本和歌山県西牟婁郡白浜町459ホームページ : Eメール :
朝倉 彰Metadata Provider、Owner
組織名 : 京都大学 フィールド科学教育研究センター 瀬戸臨海実験所 海洋生態系部門電話番号 : +81-739-42-3515住所 : 649-2211 日本和歌山県西牟婁郡白浜町459ホームページ : Eメール :
生物出現レコード 概要
生物出現レコード →
[地図・概要]
レコード数
480
レコード取得期間
1963/06/23 ~ 2014/06/14
* データの最終更新日 : 2020/12/19
レコード取得範囲
緯度
33.69722969 ~ 33.69722969
経度
135.3618638 ~ 135.3618638
[環境情報]
[登録されている分類群情報]
分類群数
9分類群
種数
8
Taxon level lower than family :100 %
Taxon level lower than species :80 %
学名一覧
表示件数/ページ
出現レコードダウンロード


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