A study published in MicrobiomeJ reports how the social environment and host selection interact to shape the assembly and ontogenesis of the avian gut microbiota. Read the paper here:
Decreases in the microbial similarity between juveniles and their conspecific foster relatives over development
We investigated the influence of intraspecific selection mechanisms and social transmission on the establishment of the gut microbiota using two sets of conspecific cross-fostering experiments. In these experiments, we cross-fostered eggs between the nests of unrelated conspecifics in both zebra finches and Bengalese finches. We compared BC dissimilarity between the paired groups of foster and genetic relatives for each experimental group at 5, 10, 35 and 100 dph.
We analysed the gut microbiota of 12 ZF juveniles reared by unrelated conspecifics. By comparing the dissimilarity between the microbial communities of these juveniles and their genetic and foster relatives, we found that the microbial communities of the juveniles were more similar to those of their foster relatives than to those of their genetic relatives at 5 dph , 10 dph and 35 dph .
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