2026-10-07T05:00:27Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33951049 2026-09-21T08:07:38Z category_26872 item_type_3 month_year_09_2026

<b>Deciphering the dynamic responses of soil bacterial community assembly and ecological strategies to extreme environmental changes</b> Zhou et al. (25081347) Ecological impacts of climate change and ecological adaptation Environmental stress, Life-history strategy, Network complexity, Assembly processes, Soil pH <p dir="ltr">Soil bacteria face increasing exposure to extreme warming and pH fluctuations due to climate change and anthropogenic pressures, yet their responses remain poorly understood. We investigated bacterial community assembly dynamics under different perturbations (four pH gradients and two temperatures) and characterized the life-history strategies of divergent environmental-response taxa. Results showed that extreme temperature/pH enhanced deterministic processes, reduced diversity and network complexity by decreasing neutral taxa, and high temperature diminished the network complexity-assembly association. Environmental stress intensified community within-group variation to drive assembly. We also show that bacteria used distinct life-history strategies to cope with environmental stress, with enhanced resource acquisition and stress resistance traits at the cost of growth yield traits. Thermophilic taxa (higher rrn copy numbers, genome sizes, and GC content) and basophilic taxa (higher rrn copy numbers and genomes) adopted distinct physiological traits compared to neutral taxa, and these traits are crucial for adaptation to extreme environments and mediate investments in YAS strategies. Our findings highlight the importance of neutral taxa in maintaining ecosystem biodiversity and enhance our understanding of microbial ecological responses to environmental pressure. </p> 2026-09-21T08:07:38Z Dataset Dataset 10.6084/m9.figshare.33951049.v1 https://figshare.com/articles/dataset/_b_Deciphering_the_dynamic_responses_of_soil_bacterial_community_assembly_and_ecological_strategies_to_extreme_environmental_changes_b_/33951049 CC BY 4.0