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Second Silent Spring? Bird Declines Linked to Popular Pesticides

Pesticides don’t just kill pests. New research out of the Netherlands provides compelling evidence linking a widely used class of insecticides to population declines across 14 species of birds.

Those insecticides, called neonicotinoids, have been in the news lately due to the way they hurt bees and other pollinators. (Related: “The Plight of the Honeybee.”)

This new paper, published online Wednesday in Nature, gets at another angle of the story—the way these chemicals can indirectly affect other creatures in the ecosystem.

Scientists from Radboud University in Nijmegen and the Dutch Centre for Field Ornithology and Birdlife Netherlands (SOVON) compared long-term data sets for both farmland bird populations and chemical concentrations in surface water. They found that in areas where water contained high concentrations of imidacloprid—a common neonicotinoid pesticide—bird populations tended to decline by an average of 3.5 percent annually.

For the full article, please see National Geographic Daily News here.

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