5Crawley M J. What makes a community invasible? In: Gray A J,Crawley M J, Edwards P J ( eds. ). Colonization, Succession and Stability. Oxford: Blackwell Scientific Publication,1986:429 -453.
6MacDonald A W, Loope L L, Usher M B et al. Wildlife conservation and the invasion of natural reserves by introduced species: a global perspective. In: Drake J A,Mooney H A,di Castri F et al. (eds.).Biological Invasion: Global Perspective. Chichester: John Willey,1989:215 -255.
7Ludsin S A and Wolfe A D. Biological invasion theory: Darwin' s contributions from the origin of species. BioScience,2001 (51) :780- 789.
8Lonsdale W H. Global patterns of Plant invasions and the concept of invisibility. Ecology, 1999 ( 80 ) : 1552 - 1536.
9Sala O E,Chapin F S,Armesto J J et al. Global biodiversity scenarios for the year 2100. Science,2000 (287) :1770 - 1774.
