Question: What is the IUCN for the Gales Point reserve when the Est. is 1998?
SQL: SELECT "IUCN" FROM "2-17625231-4" WHERE "Est." = 1998.0 AND "Reserve" = 'Gales Point';

Question: What is the IUCN for the Cockscomb Basin reserve when the Est. is less than 1998?
SQL: SELECT "IUCN" FROM "2-17625231-4" WHERE "Est." < 1998.0 AND "Reserve" = 'Cockscomb Basin';