The response of the specific composition to the effects of ENSO revealed that there is no significant turnover of species between periods, and the observed pattern would be determined by changes in the relative abundances of taxa rather than by the replacement of some species; therefore it was not possible to differentiate exclusive assemblages for the different cycles (neutral, La Nina, El Nino). According to Reynolds (1997) this type of response would evidence that the structural resilience of the community is higher than the severity of the externally imposed changes.