Lake size shapes the relationship between body mass and gut microbiota in threespine stickleback (Gasterosteus aculeatus)
We examined how environmental and host factors shape gut microbiota in wild threespine stickleback (Gasterosteus aculeatus) from six Alaskan lakes using 16S rRNA gene sequencing. This study demonstrates that ecological context modulates host-microbe associations, offering insights into the environmental drivers of gut microbiota diversity and host adaptation in the wild.