Department of Forestry and Natural Resources, Purdue University, 715 W. State St., West Lafayette, IN, 47907, USA.
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USA.
New Phytol. 2022 Jun;234(6):1960-1966. doi: 10.1111/nph.17954. Epub 2022 Jan 29.
First principles predict that diversity at one trophic level often begets diversity at other levels, suggesting plant and mycorrhizal fungal diversity should be coupled. Local-scale studies have shown positive coupling between the two, but the association is less consistent when extended to larger spatial and temporal scales. These inconsistencies are likely due to divergent relationships of different mycorrhizal fungal guilds to plant diversity, scale dependency, and a lack of coordinated sampling efforts. Given that mycorrhizal fungi play a central role in plant productivity and nutrient cycling, as well as ecosystem responses to global change, an improved understanding of the coupling between plant and mycorrhizal fungal diversity across scales will reduce uncertainties in predicting the ecosystem consequences of species gains and losses.
根据第一性原理预测，在一个营养层次上的多样性通常会产生其他层次的多样性，这表明植物和菌根真菌多样性应该是相关的。局部尺度的研究表明两者之间存在正相关关系，但当扩展到更大的空间和时间尺度时，这种关联就不那么一致了。这些不一致可能是由于不同菌根真菌群与植物多样性的关系不同、尺度依赖性以及缺乏协调一致的采样工作所致。鉴于菌根真菌在植物生产力和养分循环以及生态系统对全球变化的响应中起着核心作用，因此，更好地了解不同尺度上植物和菌根真菌多样性之间的耦合关系，将减少预测物种增减对生态系统影响的不确定性。
