Scholarlink

<p>The concept of the ecological niche, defined as the basic habitat requirements for a species, is central to understanding species geographic distributions and predicting their responses to environmental change. However, identifying the essential niche for large regional communities remains a challenge because niche axes can be “hidden” by the complexity of the underlying ecological processes. Here, applying advanced species distribution modelling to nationwide environmental DNA survey data, we identified hidden niche axes of the Japanese coastal fish community and investigated the response diversity to these axes. Our survey detected 1,220 coastal fish species. The hidden niche axes collectively explained most of the variation in fish biodiversity and revealed five biogeographic boundaries for the regional community. These niches of the Japanese fish community may primarily relate to several processes due to ocean currents, such as environmental filters, transport from source areas and dispersal barriers. We also found that the response diversity to niche axes was positively correlated with species richness, although local communities with particularly high response diversity were geographically biased. A better understanding of the niche axes of the regional ecological community should help to mitigate the loss of biodiversity and ecosystem services caused by ongoing environmental change.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Large-scale environmental DNA survey reveals niche axes of a regional coastal fish community

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月16日

查看全文
  • Yutaka Osada,
  • Masaki Miya,
  • Hitoshi Araki,
  • Hideyuki Doi,
  • Akihide Kasai,
  • Reiji Masuda,
  • Toshifumi Minamoto,
  • Satoquo Seino,
  • Teruhiko Takahara,
  • Satoshi Yamamoto,
  • Hiroki Yamanaka,
  • Mitsuhiro Aizu-Hirano,
  • Keiichi Fukaya,
  • Takehiko Fukuchi,
  • Ryo O. Gotoh,
  • Masakazu Hori,
  • Midori Iida,
  • Tomohito Imaizumi,
  • Tadashi Kajita,
  • Takashi Kanbe,
  • Tanaka Kenta,
  • Yumi Kobayashi,
  • Tomohiko Matsuura,
  • Hiroki Mizumoto,
  • Hiroyuki Motomura,
  • Hiroaki Murakami,
  • Kenji Nohara,
  • Shin-ichiro Oka,
  • Tetsuya Sado,
  • Hiroshi Senou,
  • Koichi Shibukawa,
  • Tomoki Sunobe,
  • Hiroshi Takahashi,
  • Koji Takayama,
  • Katsuhiko Tanaka,
  • Hisashi Yamakawa,
  • Satoru Yokoyama,
  • Seokjin Yoon,
  • Michio Kondoh

摘要

The concept of the ecological niche, defined as the basic habitat requirements for a species, is central to understanding species geographic distributions and predicting their responses to environmental change. However, identifying the essential niche for large regional communities remains a challenge because niche axes can be “hidden” by the complexity of the underlying ecological processes. Here, applying advanced species distribution modelling to nationwide environmental DNA survey data, we identified hidden niche axes of the Japanese coastal fish community and investigated the response diversity to these axes. Our survey detected 1,220 coastal fish species. The hidden niche axes collectively explained most of the variation in fish biodiversity and revealed five biogeographic boundaries for the regional community. These niches of the Japanese fish community may primarily relate to several processes due to ocean currents, such as environmental filters, transport from source areas and dispersal barriers. We also found that the response diversity to niche axes was positively correlated with species richness, although local communities with particularly high response diversity were geographically biased. A better understanding of the niche axes of the regional ecological community should help to mitigate the loss of biodiversity and ecosystem services caused by ongoing environmental change.