Introduced species and biodiversity

https://www.youtube.com/v/wRgJ-IexHKk?fs=1&hl=fr_FR

Great animation from the California Academy of Sciences about Introduced or exotic species, how and when they become also invasive, and the problems … Sourced through Scoop.it from: www.youtube.com

GR:  This is one of three excellent presentations.  I highly recommend them to anyone who wishes to learn more or teach more about these critical subjects. I once believed that invasive species would wreck Earth’s ecosystems before global warming became a serious force.  The effects of global warming are coming faster than expected, however, and I now believe that stopping our CO2 emissions is our number one priority, a little ahead of reducing our population, preventing invasive species introductions, and so forth.

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