Impact of the introduced yellow crazy ant Anoplolepis gracilipes on Bird Island, Seychelles

*[The introduced yellow crazy ant Anoplolepis gracilipes was first reported in Seychelles in 1969 & now occurs on at least nine islands in the Central Seychelles. We describe the yellow crazy ant's effects on vegetation & invertebrate communities Bird Island. First reported in 1991, in 2000 Anoplolepis occurred there at densities at least 80 times higher than on other islands in the Central Seychelles. They were associated with high densities of coccid scale insects on foliage, especially of the native tree Pisonia grandis, in some instances causing tree death.]