The relative importance of stochasticity versus determinism in soil bacterial communities is unclear, as are the possible influences that alter balance between these. Here, we investigated influence spatial scale on role and agricultural monocultures consisting only wheat, thereby minimizing differences plant species cover cultivation/disturbance regime, extending across a wide range soils climates North China Plain (NCP). We sampled 243 sites 1092 km sequenced 16S rRNA gene using MiSeq....

Soil salinization is a growing environmental problem caused by both natural and human activities. Excessive salinity in soil suppresses growth, decreases species diversity, alters the community composition of plants; however, effect on microbial communities poorly understood. Here, we characterize along gradient Gurbantunggut Desert, Northwestern China. Microbial diversity linearly decreased with increases salinity, dissimilarity significantly increased differences. showed strong...

Soil microbial communities are influenced by climate change drivers such as warming and altered precipitation. These changes create abiotic stresses, including desiccation nutrient limitation, which act on microbes. However, our understanding of the responses to co-occurring is limited. We surveyed soil bacterial fungal diversity composition after a 1-year precipitation manipulation in Tibetan plateau alpine grassland. In isolation, decreased treatments each had no significant effects...

The relative importance of spatial and temporal variability in shaping the distribution soil microbial communities at a large scale remains poorly understood. Here, we explored space versus time when predicting bacterial fungal across North China Plain two contrasting seasons (summer winter). Although found that alpha (number phylotypes) beta (changes community composition) diversities differed significantly between summer winter, rather than season explained more spatiotemporal variation...

Summary Rhizospheric fungi play major roles in both natural and agricultural ecosystems. However, little is known about the determinants of their diversity biogeographic patterns. Here, we compared fungal communities rhizosphere bulk soils wheat fields North China Plain. The had a lower (observed OTUs Chao1) than soil, distinct community structure with soil. relative importance environmental factors geographic distance for distribution differed between Environmental were primary cause...

Elevational gradients are associated not only with variations in temperature and precipitation, but also shifts vegetation types changes soil physicochemical properties. While large-scale elevational patterns of microbial diversity, such as monotonic declines hump-shaped models, have been reported, it is unclear whether within-ecosystem distribution exist for fungal communities at the small scale. Using Illumina Miseq DNA sequencing, we present a comprehensive analysis diversity community...

Abstract Aim There have been numerous studies of forest‐soil microbial biogeography, but an integrated view edaphic factors, plant, climatic and geographic distance in determining the variation bacterial community assembly processes remains unclear at large spatial scales. Here, we analysed factors affecting biogeographic pattern soil communities under 58 tree species five natural mountain forests. Location Eastern China. Major taxa studied Bacterial communities. Methods Hierarchical...

High native species diversity generally suppresses non-native invasions, but many ecosystems are now characterized by assemblages that vary in diversity. How this affects subsequent invaders and its environmental dependence remain unclear. We conducted a plant-soil feedback experiment. In the conditioning phase, we created three levels (1, 2, or 4 species) using six to condition soil. responding planted these individually with soil inocula exposed them two watering treatments (well-watered...

Coastal reclamation is a global threat to coastal wetland ecosystems, but the impacts of on belowground biodiversity and their consequences for ecosystem nutrient cycling remain poorly understood. In this study, we examined soil bacterial communities, co-occurrence pattern multi-nutrient index after natural vegetated wetlands were converted 6-year 30-year rice-wheat rotation fields. The was higher in fields than wetlands. For community, increased alpha diversity decreased beta network...

Secondary invasions in which nontarget invaders expand following eradication of a target invader commonly occur habitats with multiple invasive plant species and can prevent recovery native communities. However, the dynamics mechanisms secondary invasion remain unclear. Here, we conducted common garden experiment to test underlying for 14 after biological control Ambrosia artemisiifolia two consecutive years. We found all tested invaders, but invasiveness (change relative natives) varied...

Insect herbivores can adversely impact terrestrial plants throughout ontogeny and across various ecosystems. Simultaneously, the effects of foliar herbivory may extend belowground, to soil microbial community. However, responses in terms diversity, assembly, stability rhizosphere fungi aboveground remain understudied. Here, using high-throughput sequencing, insect on fungal microbes were investigated a common garden experiment that manipulated intensity time from herbivore removal. The...

ABSTRACT Diverse native plant communities resist non‐native plants more than species‐poor communities, in part through resource competition. The role of soil biota diversity–invasibility relationships is poorly understood, although interact with during invasions. We tested the responses to generated by different diversities. applied well‐watered and drought treatments both conditioning response phases explore effects ‘historical’ ‘contemporary’ environmental stresses. When soils, microbial...

Fluctuating resource availability plays a critical role in determining non-native plant invasions through mediating the competitive balance between and native species. However, impact of fluctuating on interactions among species remains largely unknown. This represents barrier to understanding invasion mechanisms, particularly habitats that harbor multiple with different responses availability. To examine nutrient fluctuations, we compared growth each 12 found be common local natural areas...

Temporal fluctuation in nutrient availability generally promotes the growth of exotic plant species and has been recognized as an important driver invasions. However, little is known about how impact fluctuating nutrients on dependent other resources, although most ecosystems are experiencing dramatic variations a wide variety resources due to global change human disturbance. Here, we explored water mediates effect pulses six native species. We subjected individual plants well watered or...

Climate warming and anthropogenic activities have led to an increase in the prevalence of non-native plants mountainous regions that previously exhibited limited occurrences. This phenomenon has resulted detrimental effects on endemic ecosystem functions. Yet, how traits successfully spread high elevation vary along gradient, as well underlying drivers these changes, remain sparsely understood. In this study, we use Erigeron annuus, a cosmopolitan plant invaded elevation, our model explore...