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Kenya's rainy season sparks illegal ant trade surge
Every rainy season in Gilgil, a quiet farming town in Kenya's Rift Valley, winged ants emerge from thousands of anthills in a mating ritual that has become the center of a lucrative illegal trade. Local collectors chase down queen ants, which are smuggled abroad to meet growing demand from exotic pet enthusiasts.
High-value queens drive smuggling networks
The giant African harvester ant queens, known for their large size and red color, are the most sought-after. A single queen can fetch up to £170 ($220) on the black market. Fertilized queens can establish entire colonies and live for decades, making them easy to smuggle-scanners rarely detect organic material in small packages.
A former broker, who requested anonymity, told the BBC he initially had no idea the trade was illegal. "A friend told me a foreigner was paying good money for queen ants-the big red ones easily spotted around here," he said. Collectors target mounds in open fields during early mornings, packing the ants in test tubes or syringes provided by foreign buyers who wait in nearby guest houses or cars.
Major busts expose scale of trafficking
The illicit trade came to light last year when Kenyan authorities discovered 5,000 giant harvester ant queens at a guest house in Naivasha, a tourist hub near Gilgil. The suspects-from Belgium, Vietnam, and Kenya-had packed the ants in test tubes with moist cotton wool, allowing them to survive for up to two months. Their plan was to smuggle the queens to Europe and Asia for sale.
Two weeks ago, a Chinese national, allegedly the mastermind behind last year's ring, was arrested at Nairobi's Jomo Kenyatta International Airport with 2,000 queen ants hidden in test tubes and tissue rolls. The suspects in the earlier case were convicted of biopiracy, fined $7,700, and deported.
Scientists warn of ecological risks
Researchers are alarmed by the trade's potential to disrupt ecosystems. A 2023 study in Biological Conservation found that over a quarter of ant species traded in China were non-native, raising concerns about invasive species establishing wild populations. The giant African harvester ant, Messor cephalotes, could threaten grain-based agriculture in southeastern China if introduced.
"If the trade volume of invasive ants continues to grow, it's only a matter of time before a few escape from their enclosures and become established in the wild," said Zhengyang Wang, an assistant professor at Sichuan University who co-authored the study.
Zhengyang Wang, Sichuan University
In Kenya, harvester ants play a critical role in seed dispersal and soil health. "Unsustainable harvesting, particularly of queen ants, can lead to colony collapse, disrupting ecosystems and threatening biodiversity," said Mukonyi Watai, a senior scientist at Kenya's Wildlife Research and Training Institute.
Legal trade remains untapped
Kenya allows legal ant collection under international treaties, but no permits have been issued. The process requires benefit-sharing agreements with local communities and details on collection volumes and destinations. Some conservationists advocate for listing ant species under CITES, the global wildlife trade treaty, to improve monitoring.
"Without international treaties monitoring these movements, the scale of the trade remains largely invisible to policymakers," said Sérgio Henriques, a researcher studying the global ant trade.
Sérgio Henriques, Global Ant Trade Researcher
Debate over sustainable commercialization
Kenya's cabinet approved guidelines last year to commercialize wildlife, including ants, as part of a broader strategy to boost the economy. "The guidelines aim to promote sustainable trade to generate jobs and livelihoods," Watai said. However, critics argue the country is missing an opportunity to farm ants legally, as they can be bred in large numbers.
Journalist Charles Onyango-Obbo wrote in the Daily Nation that Kenya treats ants "like stolen artefacts" instead of a renewable resource. With proper regulation, farmers near Gilgil could expand their income by raising queen ants in formicaria-transparent enclosures used by hobbyists-alongside traditional crops.
For now, the debate over the risks of exporting ants to global collectors remains unresolved, even as enforcement agencies push for better surveillance at borders to curb the illegal trade.
