Frontiers in microbiology
Contrasting ecological responses of abundant and rare bacterial and fungal subcommunities along an alpine marsh wetland degradation gradient
Por Zhou S, Cao M, Tang J y 4 más.
Contenido en inglés
Resumen
Introduction
Abundant and rare microbial taxa may respond differently to wetland degradation, yet their relative contributions to community reorganization remain poorly resolved in alpine marsh wetlands.
Methods
We investigated lightly (LD), moderately (MD), and severely degraded (SD) alpine marsh wetlands on the northern shore of Qinghai Lake using 15 soil metagenomes and nine soil physicochemical properties. Bacterial and fungal genera were classified as abundant, intermediate, rare, or low-prevalence taxa according to domain-specific prevalence and mean relative abundance. Sample-level richness and original abundance contributions, alpha and beta diversity, community composition, distribution breadth, candidate indicator genera, and environmental associations were compared across the degradation gradient.