Extinction Rates 'overestimated'

Current extinction rate projections may be overestimating the role of habitat loss on species, a study suggest.

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  • EO Indexes: Extinction
    They estimate that about 900 species have disappeared for good and that 35,765 species are threatened with extinction today. Another study led by Gerardo Ceballos claims that extinction rates are 100 to 1000 times higher today than the baseline extinction rate (around 1 species per million per year).
    12/4/2024 - 7:31 pm | View Website
  • Extinction Over Time
    Extinction Rates. Recent studies estimate about eight million species on Earth, of which at least 15,000 are threatened with extinction. It’s hard to pinpoint the exact extinction rate because many endangered species have not been identified or studied yet. A number of scientists grapple with improving methods for estimating extinction rates.
    12/4/2024 - 5:29 pm | View Website
  • Global Extinction Rates: Why Do Estimates Vary So Wildly?
    But recent studies have cited extinction rates that are extremely fuzzy and vary wildly. The Millennium Ecosystem Assessment, which involved more than a thousand experts, estimated an extinction rate that was later calculated at up to 8,700 species a year, or 24 a day.
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  • There have been five mass extinctions in Earth's history
    There’s a natural background rate to the timing and frequency of extinctions: 10% of species are lost every million years, 30% every 10 million years, and 65% every 100 million years. 2 It would be wrong to assume that species going extinct is out of line with what we would expect.
    12/4/2024 - 2:06 am | View Website
  • Past and future decline and extinction of species | Royal Society
    Pre-human extinction rates are inferred from the fossil record, recent values from documented extinctions in selected groups, and near-future extinctions are projected from the current rates at which species are transitioning between IUCN categories (data from refs 2, 9, 10, 12 and 13).
    12/4/2024 - 12:18 am | View Website
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