Livestock may be rewriting elephants' gut microbiomes in Kenya's protected reserves
Why it matters: Livestock, now the majority of Earth's mammalian biomass, may be causing unnoticed microbiome changes in wildlife worldwide.
- San Diego Zoo Wildlife Alliance and Save the Elephants collaborated on a study published in Royal Society Open Science, tracking individual elephants in Samburu and Buffalo Springs National Reserves.
- Jenna Parker, lead author and Assistant Professor at Lake Superior State University, noted an increase in methane-producing Methanobrevibacter (prevalent in livestock) and a decrease in beneficial Roseburia in elephant guts when livestock numbers rose.
- Candace Williams, formerly of San Diego Zoo Wildlife Alliance, emphasizes the interconnectedness of wildlife, livestock, and human health, suggesting more research is needed to understand these impacts.
- George Wittemyer, Chief Scientist for Save the Elephants, highlights that this study uncovers subtle, previously unrecognized impacts of human encroachment and livestock on wildlife, beyond the well-documented negative effects.
New research from San Diego Zoo Wildlife Alliance and Save the Elephants reveals that increased livestock presence in Kenya's protected reserves is altering the gut microbiomes of wild elephants, introducing livestock-associated microbes and decreasing beneficial bacteria. While the long-term health implications for elephants are still unclear, scientists are concerned these shifts could signal broader health problems and represent a previously unnoticed environmental impact of livestock on wildlife globally.
