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New Research Shows Agricultural Impacts on Soil Microbiome and Fungal Communities

New research from Smithsonian's Bird Friendly Coffee program highlights a type of biodiversity that often gets overlooked: soil bacteria and fungal communities. For over twenty years, Smithsonian research has shown that coffee farms with shade trees protect more biodiversity than intensified, monoculture coffee farms.

The new research, published in Applied Soil Ecology, shows that  and fungi on coffee farms also respond to the intensity of coffee farm management.

To conduct this research, the team collected soil samples on coffee farms in Colombia, El Salvador, and Peru and used DNA analysis to profile bacterial and fungal soil on farms with different management regimes. They found that farming coffee as a monoculture alters the soil microbiome in both community composition and . But not all shade-grown  were the same.

The soil microbiomes on farms with native  were different than on farms with non-native, introduced species of shade trees as well. Soil microbiomes in the tropics are poorly understood, and this research demonstrates the incredible diversity within soils in tropical agricultural landscapes across Latin America.

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