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Britain's Rodent War: Coypus Vanquished!
23 Aug
Summary
- Britain launched a scientific campaign in 1981 to eradicate invasive coypus.
- An estimated 200,000 coypus once damaged crops and wetlands in Britain.
- Intensive trapping and research led to almost complete disappearance by 1987.
Britain once faced a significant challenge from an invasive species: the coypu. Escaped from fur farms, these large rodents proliferated, reaching an estimated population of 200,000 across East Anglia and beyond. Their voracious appetite caused considerable damage to crops and vital wetland vegetation, impacting ecosystems.
Early attempts to control the coypu population through large-scale killing proved insufficient. However, in April 1981, Britain initiated a more sophisticated eradication campaign. This scientific approach integrated intensive trapping with biological research and population modeling.
The strategy focused on understanding coypu concentration, reproduction, and the impact of environmental factors. This meticulous planning ensured efforts were concentrated effectively, leading to a dramatic decline in numbers. By April 1986, the estimated breeding population had plummeted from around 3,000 adult females to just 20.
Sustained trapping, coupled with several cold winters, accelerated the coypu's disappearance. By 1987, officials believed the breeding population had been eliminated, and the trapping program officially concluded in January 1989. This campaign, which eradicated over 10,000 coypus, stands as a successful example of targeted action against invasive species.
