What is an invasive species?



  1. 0 Votes

    Addressed in many previous answers – see link.

  2. 0 Votes

    The National Invasive Species Council defines invasive species as “an alien (or non-native) species whose introduction does, or is likely to cause economic or environmental harm or harm to human health.” A species who is not native to the region and is introduced purposefully or accidentally by humans can often become huge problems. The Quagga mussel (introduced accidentally from wayward ships) is taking over lakes across the US, crowding out other species and clogging pipes and irrigation lines. English Ivy (introduced for decorative appeal) is strangling native trees and shading out plant species in the Pacific Northwest. The brush-tail possum (introduced for the pelt industry) in New Zealand is devouring native plantlife at startling rates.

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