The contemporary coexistence theory suggests that species pool, environmental filtering, dispersal assembly processes, ecological drift and biotic interactions collectively determine the β-diversity of communities. However, we know little about the biogeographical patterns of the β-diversity of microbial communities harbouring the alkaline phosphatase phoD gene (phoD communities, hereafter) and whether these mechanisms are all-important in shaping phoD communities’ β-diversity in natural steppe ecosystems.

中文翻译：

---

当地社区组装过程塑造了北半球大草原土壤 phoD 栖息社区的 β 多样性

当代共存理论表明，物种库、环境过滤、分散组装过程、生态漂移和生物相互作用共同决定了群落的 β 多样性。然而，我们对携带碱性磷酸酶phoD基因（phoD群落，以下简称phoD群落）的微生物群落的 β 多样性的生物地理模式知之甚少，以及这些机制对于塑造自然草原生态系统中phoD群落的 β 多样性是否至关重要。