These "technical comments" are summarised on p.975 of "Science" v.296, no 5570, 10 May 2002.
The original report by Ricklefs and Bermingham: "Nonequilibrium diversity dynamics of the Lesser Antillean avifauna" is from "Science" v.294, no.5546 (16/11/2001), p.1522-1524.
Available online.