Nepal Study: Bees Provide 44% of Farmer Income

In rural Nepal, the humble bumblebee is doing far more than just making honey. It's putting food on tables and money in pockets.

Researchers from the University of York spent a year tracking an extraordinary connection between insects and human wellbeing. They discovered that pollinators like bees and hoverflies are responsible for 44% of farmers' income and over 20% of their vitamin A, vitamin E, and folate intake.

Thomas Timberlake, an ecologist who led the study, says the link between biodiversity and health is "very, very direct" in these communities. Unlike people who buy food at grocery stores, three quarters of Nepal's rural population depend directly on smallholder farming and the ecosystem surrounding it.

The team visited 776 people twice weekly for an entire year, documenting every meal. Then they surveyed local farms, identifying which insects visited which plants and even measuring pollen on individual bugs. It was painstaking work that finally drew clear lines from biodiversity to human nutrition.

What they found was both concerning and hopeful. Native honeybee populations in parts of Nepal have dropped nearly 50% over the past decade due to climate change and habitat loss. If this decline continues, vitamin A and folate intake could drop 7% by 2030.

But here's where the story gets bright.

The Ripple Effect

Helping pollinators recover isn't complicated or expensive. Planting wildflowers, providing bee nesting sites, and reducing pesticides can reverse insect decline. The researchers estimate these simple actions could raise farmer income by up to 30%.

Even better, improved pollination could lift 9% of the population out of nutrient deficiency. That means healthier children, stronger communities, and more resilient farming families.

Taylor Ricketts, an ecologist at the University of Vermont, says the findings prove that "conserving biodiversity is a public health investment." The effects aren't small, they're substantial.

Kelvin Mulungu, an agricultural economist in Zambia, puts it simply: "Biodiversity isn't just about saving bees or wild animals. It's for the benefit of humans and sometimes the most vulnerable populations."

The study shows that protecting nature protects people, and the solution starts with something as simple as planting flowers that feed the insects that feed us all.