Experimental demonstration of the importance of keystone communities for maintaining metacommunity biodiversity and ecosystem functioning
Experimental demonstration of the importance of keystone communities for maintaining metacommunity biodiversity and ecosystem functioning
复制标题
实验证明关键群落对于维持元群落生物多样性和生态系统功能的重要性
DOI：
10.1007/s00442-020-04693-x
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发表时间：
2020
期刊：
影响因子：
2.7
通讯作者：
Jiang, Lin
中科院分区：
文献类型：
--
作者：
Yang, Xian;Tan, Jiaqi;Sun, Kevin Harry;Jiang, Lin
由于一个准同生境中的当地社区对生物多样性和生态系统功能的贡献可能有很大的不同，有人建议，应优先保护不成比例重要的当地社区（即，Keystone社区）。然而，我们对基石社区的特征知之甚少。使用实验室原生生物微宇宙作为模型系统，我们研究了环境的独特性和当地社区的位置如何影响其对亚生态系统的贡献。我们发现，去除当地社区具有独特的环境条件，支持特有物种，减少了区域尺度的多样性，使其成为区域尺度的关键社区。此外，拥有独特环境条件的当地社区对生态系统功能，包括生物量生产和颗粒有机物分解的影响更大。我们还发现，生物量生产的基石社区不是有机质分解的基石，反之亦然。因此，我们的研究表明，基石社区在维持生物多样性和功能的metacopathies的重要作用。
As local communities within a metacommunity may differ considerably in their contributions to biodiversity and ecosystem functioning, it has been suggested that conservation priority should be given to disproportionately important local communities (i.e., keystone communities). However, we know little about what characterizes a keystone community. Using laboratory protist microcosms as the model system, we examined how the environmental uniqueness and location of a local community affect its contributions to the metacommunities. We found that the removal of local communities with unique environmental conditions, which supported endemic species, reduced regional-scale diversity, qualifying them as regional-scale keystone communities. In addition, the local communities possessing unique environmental conditions had greater impacts on ecosystem functions, including biovolume production and particulate organic matter decomposition. We also found that keystone communities for biovolume production were not keystone for organic matter decomposition, and vice versa. Our study, therefore, demonstrates the important role of keystone communities in maintaining biodiversity and functioning of metacommunities.
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影响因子：
13.6
作者：
Haddad NM;Brudvig LA;Clobert J;Davies KF;Gonzalez A;Holt RD;Lovejoy TE;Sexton JO;Austin MP;Collins CD;Cook WM;Damschen EI;Ewers RM;Foster BL;Jenkins CN;King AJ;Laurance WF;Levey DJ;Margules CR;Melbourne BA;Nicholls AO;Orrock JL;Song DX;Townshend JR
通讯作者：
Townshend JR
测试关键群落概念：景观、斑块去除和环境对元群落结构的影响。
影响因子：
4.8
作者：
Emlyn J. Resetarits;S. Cathey;M. Leibold
通讯作者：
M. Leibold
影响因子：
3.9
作者：
Davidar, P;Yoganand, K;Ganesh, T
通讯作者：
Ganesh, T
扩散扩大了实验源库元群落中的生物多样性与生产力关系
DOI：
10.1098/rspb.2009.2104
发表时间：
2010
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
--
作者：
P. Venail;R. MacLean;C. Meynard;N. Mouquet
通讯作者：
N. Mouquet
影响因子：
6.6
作者：
Brose, U
通讯作者：
Brose, U