BIO 455 Chapter Notes - Chapter 2: Great Lakes, Columbian Exchange, Propagule

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Reading notes from invasive species: what everyone needs to know (chapter 2) To become an invasive species, a non-native species must first arrive and establish a population. Ecologist mark williamson; tens rule - 10% of introduced species establish populations and 10% of those go on to become pests. Established species - naturalized species reproducing without human assistance. Established species are not all invasive because they have not all spread widely. Some invasive species have such a similar morphology to the native species, that it can go undetected that a new species is present. Columbian exchange - old world, new world invasive species introducing and establishing. Alfred w. crosby; ecological imperialism - europeans spread their animals and plants (and their disease) along with their culture. Francesco di castri: impact of coevolution with humans on dominance by introduced. The geography of eurasia and some climatic history.

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