数字农科院2.0

Reconciling links between diversity and population stability across global plant communities

文献类型： 外文期刊

作者： Pan, Xiaobin;Hautier, Yann;Leps, Jan;Wang, Shaopeng;Barry, Kathryn E.;Bazzichetto, Manuele;Chelli, Stefano;Dolezal, Jiri;Eisenhauer, Nico;Essl, Franz;Fischer, Felicia M.;Godoy, Oscar;Gomez-garcia, Daniel;Gotzenberger, Lars;Gracia, Clara;Guido, Anaclara;Hallett, Lauren M.;Harrison, Susan;He, Miao;Hector, Andrew;Hong, Pubin;Isbell, Forest;Kowalchuk, George A.;Lecegui, Victor;Li, Xiaofei;Liang, Maowei;Louault, Frederique;Majekova, Maria;Marrs, Rob;Mohanbabu, Neha;Mori, Akira S.;Pakeman, Robin J.;Paquette, Alain;Peco, Begona;Penuelas, Josep;Pillar, Valerio D.;Rueda, Marta;Schmidt, Wolfgang;Segrestin, Jules;Sperandii, Marta Gaia;Valencia, Enrique;Vandvik, Vigdis;Wang, Shengnan;Ward, David;Wiser, Susan;Woodcock, Ben A.;Xu, Chong;Young, Truman;Yu, Fei-hai;Zheng, Liting;Zhong, Zhiwei;De Bello, Francesco

作者机构：

关键词： average richness;biodiversity;cumulative richness;dominance;populations;rare species;unweighted and weighted population stability

期刊名称： NEW PHYTOLOGIST

ISSN： 0028-646X

年卷期： 2026 年

页码：

收录情况： SCIE（2025版）

摘要： Maintaining ecological stability is essential for sustaining ecosystem functions and the bene-fits they provide to society. Ecological theory predicts that plant diversity destabilizes local populations, yet empirical studies report variable effects. We hypothesize that this discrepancy arises at least in part from differences captured by dif-ferent diversity (average vs cumulative richness, i.e. the mean annual richness vs the cumula-tive richness across years) and stability metrics (abundance-unweighted vs weighted mean population stability). To test this, we analyzed data from > 8000 permanent vegetation plots across biomes on five continents. We found a negative (i.e. destabilizing) diversity stability relationship when using abundance-weighted rather than unweighted measures of population stability, which are more influenced by dominant species. Similarly, cumulative richness capturing total species occurrence over time and long-term turnover reveals a stronger destabilizing effect com-pared to average annual richness. Our findings reveal that, when specific metrics of diversity and stability are considered, more species and potentially the associated increase in interspecific competition tend to desta-bilize populations across natural ecosystems world-wide particularly those of dominant species.

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