While we rush to get ready for work and reach for that first cup of coffee, there is a particular kind of silence inside a coffee estate in the Western Ghats.

A Malabar barbet calls from somewhere above. A drongo moves through the branches. Sunbirds flit between flowers, while insects disappear into the undergrowth. Beyond the rows of coffee, a giant squirrel may make its way across the canopy.

Coffee, after all, did not evolve to grow in open fields. It is naturally an understory plant, adapted to growing beneath taller trees.

For generations, coffee was cultivated in shaded landscapes, where the crop shared space with fruit trees, native species and other vegetation.

As coffee production intensified in many parts of the world, however, some farms shifted towards more open, sun-grown systems. Shade trees were removed to increase the amount of sunlight reaching the crop.

That decision can change far more than the amount of light reaching a coffee bush.

The farm above the coffee

For scientists studying coffee landscapes, the canopy is not simply a layer of vegetation. It can turn a plantation into a functioning agroforest.

Research by the Smithsonian Migratory Bird Center (SMBC), which has studied shade-grown coffee for decades, shows that these farms can provide habitat for birds, mammals, insects and other wildlife. Trees can also help protect soil, support pollination and natural pest control, store carbon and regulate local microclimates.

The Smithsonian notes that coffee was traditionally grown under shade. The widespread shift towards sun plantations, however, has contributed to the loss of tropical forest habitat used by migratory birds and other wildlife.

Its researchers have therefore explored a central question: Can a coffee farm remain productive while also functioning as habitat?

This work led to the development of Bird Friendly standards, which set requirements for shade cover, tree height and tree diversity. Developed by the Smithsonian, the certification is the only coffee certification that requires coffee to be both 100 percent organic and shade-grown.

The principle is rooted in the structure of the canopy.

How much foliage is present? How tall are the trees? Are there different layers of vegetation? Is the farm shaded by a variety of tree species or largely by one?

These details can determine whether a coffee plantation becomes little more than a crop with trees above it, or a landscape capable of supporting........

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