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Galapagos
Conservancy , 2006 .
The increase in introduced species is staggering there were 1321
registered species introduced in 2007 , ten times the amount in 1900 (Watkins Cruz , 2007 . The number of introduced plant species is much
higher than native plants (748 /500 . There are 180 species of endemic
plants , sixty percent of which are considered threatened (2007 . Many of
the insect and invertebrate species that have been introduced to the
Galapagos are a high risk , with the potential of negatively affecting...













