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Aerial view of illegal gold mining destruction in the Peruvian Amazon — pockmarked deforested terrain surrounded by intact rainforest
Briefings

MAY 04 2026 · MADRE DE DIOS, PERU · 2 min read

Mercury and Machines: How Illegal Mining Threatens Peru's Amazon Wildlife

Peru's southern Amazon — the Madre de Dios region — is being lost faster than almost any equivalent rainforest on Earth. Illegal alluvial gold mining clears the forest, and the mercury used to bind the gold enters every river it touches. Animals that escape the bulldozers do not escape the water.

The problem

  • Over 100,000 hectares of Peruvian rainforest have been cleared by illegal mining in the past 15 years.
  • Substantial amounts of mercury enter the Madre de Dios watershed every year.
  • Mercury bioaccumulates: river fish, then river otters, then capuchin monkeys and macaws drinking from clay licks all carry elevated levels.
  • Scarlet macaws (Ara macao) and red-and-green macaws (Ara chloropterus) depend on Madre de Dios clay licks for essential minerals.

Why this region matters

Madre de Dios is one of the most biodiverse places on the planet — home to over 1,200 bird species, 200 mammal species, and a substantial share of the Amazon's macaw population. Losing it does not only harm the animals; it changes the ecology of the entire western Amazon basin.

What WARN is preparing to do

WARN's Peru programme will fund a forest sanctuary for primates and macaws confiscated from the pet trade, support training for officers on field-confiscation triage, and contribute to mercury-awareness work with riverside communities. We need supporter funding to begin.

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WARN Editorial Team

World Animal Rescue Network

Published MAY 04 2026 2 min read · 313 words
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