Should plants and animals from other places live here?

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Across
  1. 4. This Europe-native species made large-scale wars possible.
  2. 6. Non native species that is harmful to the environment.
  3. 8. This type of tree was brought to the Americas to stabilize swampy areas.
  4. 9. This non native species throve in the Mississippi river and menaces the life of native species.
Down
  1. 1. Species that come from another place or country
  2. 2. One example of a non native specie to Florida.
  3. 3. This non native species has become a threat for the native species in the Florida Everglades
  4. 5. These beettles were brought from Australia to eat insects that killed citrus.
  5. 7. This Asian-native species makes soil erosion stop.