Remember that hand-grenade-on-the-dance-floor article in Nature this past June questioning the invasive species paradigm? Two of the 19 co-authors have written a follow-up opinion piece in The Scientist responding to some of the criticism their article has received. I especially appreciate this paragraph:
What we object to is an insistence on permanent, hopeless wars on well- and widely-established non-native taxa, conflicts that continuously disrupt ecosystems where introduced species now play significant ecological roles. Furthermore, as long as the many modes of inter- and trans-continental shipping continue to operate, organisms will unexpectedly move along with materials, goods, and people. Thus, although we respect the values inspiring many local conservation and restoration efforts, we caution that continuous “weeding” creates a further, more permanent dependence on human judgment and activity rather than a lesser, more temporary one.