1. JE Byers, S. Reichard, and JM Randall .et al.2002 .Directing research to reduce the impacts of nonindigenous species .Conserv Biol,16:630 -40 .
2. AW Crall, LA Meyerson, and TJ Stohlgren .et al.2006 .What data currently exist for non-native species? Front Ecol Environ,4:414 -18 .
3. C. D'Antonio, J. Levine, and M. Thomsen .2001 .Ecosystem resistance to invasion and the role of propagule supply: a California perspective .J Mediterr Ecol,2:233 -45 .
4. CM D'Antonio, and LA Meyerson .2002 .Exotic plant species as problems and solutions in ecological restoration: a synthesis .Restor Ecol,10:703 -13 .
5. JM Drake, and DM Lodge .2004 .Global hot spots of biological invasions: evaluating options for ballast-water management .P Roy Soc Lond B Bio,271:575 -80 .