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Perception, Knowledge and Aesthetics of biodiversity - Etech-Center ...

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Estimates <strong>of</strong> 600 university students<br />

Mean estimation Actual number Factor<br />

overestimation<br />

381 Mill. ± 1.3x10 9 1 - 50 Mill. > 7.6<br />

Widely inaccurate ideas <strong>of</strong> number <strong>of</strong> species („many“)<br />

Dunning 1997. The missing awareness, part 2: teaching students what a billion people<br />

looks like. Conservation Biology 11

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