Diet, nutrient characteristics and gut microbiome between summer and winter drive adaptive strategies of East China sika deer (Cervus nippon kopschi) in the Yangtze River basinOriginal paper
Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease, four years before the first published case study.
Read MoreWhat was studied?
Researchers studied how East China sika deer (Cervus nippon kopschi) in the Taohongling National Nature Reserve, in the mid lower Yangtze River basin, adjust diet and gut microbiota between summer and winter.
How was it studied?
The team combined dietary metabarcoding, using high throughput sequencing of the chloroplast trnL P6 loop, with 16S rRNA sequencing of gut microbiota, then linked results to plant nutrient composition across both seasons.
What did they find?
In summer, deer ate 174 plant species from 183 genera and 107 families, a generalist pattern; in winter they ate 130 species from 173 genera and 90 families, a more specialized pattern. Nutrient intake stayed stable across seasons despite this shift, and gut microbiota alpha diversity was higher in winter, with microbial functions concentrated in metabolic processes and community structure differing by season.
Why it matters
The findings show sika deer flexibly reshape gut microbiota composition and function to buffer seasonal shifts in diet diversity and nutrient availability. The authors say this supports conservation planning, habitat improvement, and captive breeding efforts for the species in eastern China.