ArticleEnvironmental microbiome2025
Spatial scale modulates stochastic and deterministic influence on biogeography of photosynthetic biofilms in Southeast Asian hot springs.
Article in Environmental microbiome, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Fungi dominate eukaryotic microbial assemblages in hot spring biofilms of East and Southeast Asia.Environmental microbiome · 2025Article
- Genotypic and molecular characterization of a moderately thermophilic cyanobacterium,Engineering microbiology · 2025Article
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Authors and funding
12 authors.
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Abstract
Hot springs, with their well-characterized major abiotic variables and island-like habitats, are ideal systems for studying microbial biogeography. Photosynthetic biofilms are a major biological feature of hot springs but despite this large-scale studies are scarce, leaving critical questions about the drivers of spatial turnover unanswered. Here, we analysed 395 photosynthetic biofilms from neutral-alkaline hot springs (39-66 °C, pH 6.4-9.0) across a 2100 km latitudinal gradient in Southeast Asia. The Cyanobacteria-dominated communities were categorized into six biogeographic regions, each characterized by a distinct core microbiome and biotic interactions. We observed a significant decline in the explanatory power of major abiotic variables with increasing spatial scale, from 62.6% locally, 55% regionally, to 26.8% for the inter-regional meta-community. Statistical null models revealed that deterministic environmental filtering predominated at local and regional scales, whereas stochastic ecological drift was more influential at the inter-regional scale. These findings enhance our understanding of the differential contribution of ecological drivers and highlight the importance of spatial scale in shaping biogeographic distributions for microorganisms.
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