The Ten Principles of Ecological Restoration...
Control and/or removal of non-native invasive species
Non-native plants have been removed from the biological
controls of their place of origin and, as a result, tend to be more
aggressive. These plants have evolved under a different set of circumstances
and have often been genetically altered by the nursery trade. A functioning
native habitat is much like a symphony. Each instrument supports, enhances
and is in balance with the others around it. None dominate the other
and thereby beautiful music is created. A non-native plant in a native
habitat is like a constantly clanging cymbal; it just doesn’t
belong there. Native plants have co-evolved for tens of thousands of
years, at least, and support each other, fitting together like pieces
of a puzzle. Some of these species are greater threats than others.
Some may be quite beautiful. All are taking the space requirements for
natives. The removal of these plants must go hand-in-hand with native
replacements or they will simple re-occupy the space over time.