Tag Archives: biodiversity loss

We’ve taken over too much of the planet for pasture and crops

In the article “Primeval planet: What if humans had never existed?” by Christopher Kemp in NewScientist, these charts of increasing intensity of pasture and crop land from 5000 BC (18,000,000 population) until 2000 (6,150,000,000 people) show that humans are laying … Continue reading

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Land invasive species

25% of U.S. agricultural gross national product is lost to foreign plant invaders and the costs of controlling them. Exotic species have contributed to the decline of 42 percent of U.S. endangered and threatened species. The chestnut blight fungus, which … Continue reading

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Invasive Species prevent new species from evolving: human induced mass extinction recovery will take longer than thought

Richard A. Kerr. February 10, 2012.More Than One Way for Invaders to Wreak Havoc.   Science: Vol. 335:646 Ravenous pythons and anacondas invading the Florida Everglades are ravaging the local ecology. But a study published last month suggests that invasive species … Continue reading

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