1. Introduction : confronting a shrinking world -- 2. Reuniting Pangaea -- 3. Wheat and trout, weeds and pestilence -- 4. Elbowing out the natives -- 5. The good, the bad, the fuzzy -- 6. The making of a pest -- 7. Taking risks with strangers -- 8. Stemming the tide -- 9. Beachheads and sleepers -- 10. Taking control -- 11. Islands no longer -- 12. Can we preserve integrity of place.