Researchers from the Bork Group at EMBL Heidelberg analyzed tens of thousands of metagenomes to understand how microbial communities are distributed across the planet. Their findings, published in Cell, show that microbes living in similar environments share more characteristics than those simply located in the same geographic area. Most microbes appear specialized to particular ecosystems, while a smaller group, termed “generalists,” can survive in a variety of habitats.
This study highlights the importance of environmental factors over geographic proximity in shaping microbial communities. The identification of generalist microbes suggests some species have greater adaptability, allowing them to colonize diverse ecosystems worldwide.
**Why this matters**
Understanding how microbial communities are connected globally helps clarify the role microbes play in ecosystem functions and health. Recognizing that habitat type drives microbial similarity more than location can improve predictions of microbial responses to environmental changes and inform conservation and biotechnological efforts.
Source: NewsData