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タイトル: | Interaction network rewiring and species’ contributions to community-scale flexibility |
著者: | Toju, Hirokazu https://orcid.org/0000-0002-3362-3285 (unconfirmed) Suzuki, Sayaka S Baba, Yuki G |
著者名の別形: | 東樹, 宏和 鈴木, 紗也華 馬場, 友希 |
キーワード: | biodiversity community stability food webs keystone species species coexistence |
発行日: | Mar-2024 |
出版者: | Oxford University Press (OUP) National Academy of Sciences |
誌名: | PNAS Nexus |
巻: | 3 |
号: | 3 |
論文番号: | pgae047 |
抄録: | The architecture of species interaction networks is a key factor determining the stability of ecological communities. However, the fact that ecological network architecture can change through time is often overlooked in discussions on community-level processes, despite its theoretical importance. By compiling a time-series community dataset involving 50 spider species and 974 Hexapoda prey species/strains, we quantified the extent to which the architecture of predator–prey interaction networks could shift across time points. We then developed a framework for finding species that could increase the flexibility of the interaction network architecture. Those “network coordinator” species are expected to promote the persistence of species-rich ecological communities by buffering perturbations in communities. Although spiders are often considered as generalist predators, their contributions to network flexibility vary greatly among species. We also found that detritivorous prey species can be cores of interaction rewiring, dynamically interlinking below-ground and above-ground community dynamics. We further found that the predator–prey interactions between those network coordinators differed from those highlighted in the standard network-analytical framework assuming static topology. Analyses of network coordinators will add a new dimension to our understanding of species coexistence mechanisms and provide platforms for systematically prioritizing species in terms of their potential contributions in ecosystem conservation and restoration. |
記述: | 「やわらかい」ネットワークを作るコア生物種 --生態系の柔軟性を支える種を探索する--. 京都大学プレスリリース. 2024-03-07. |
著作権等: | © The Author(s) 2024. Published by Oxford University Press on behalf of National Academy of Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
URI: | http://hdl.handle.net/2433/287289 |
DOI(出版社版): | 10.1093/pnasnexus/pgae047 |
PubMed ID: | 38444600 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2024-03-07-4 |
出現コレクション: | 学術雑誌掲載論文等 |
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