Small-Scale Variability in Bacterial Community Structure in Different Soil Types

Microbial spatial distribution has mostly been studied at field to global scales (i.e., ecosystem scales). However, the organization small centimeter millimeter scales), which can help improve our understanding of impacts communities structure on microbial functioning, received comparatively little attention. Previous work shown that small-scale exists in soil communities, but these studies have not compared soils from geographically distant locations, nor they utilized community ecology approaches, such as core and satellite hypothesis and/or abundance-occupancy relationships, often used macro-ecology, description communities. In present work, we focused bacterial diversity 16S rRNA gene sequencing) occurring micro-samples a variety locations with different pedo-climatic histories semi-arid, alpine, temperate climates) physicochemical properties. The forms ecological relationships occupancy-frequency abundance-occupancy) taxa distributions habitat generalists specialists) were investigated. results showed composition differed four scale. Moreover, one presented mode distribution, whereas three others bimodal distributions. Interestingly, numerous among 8 OTUs common sites. These confirm analyses are necessary understand consequent functional processes taking place soils, affecting thus functioning.