AN ALERT CONCERNING A POSSIBLE THREAT TO THE AMPHIBIAN FAUNA EAST OF THE ANDES: DISCOVERY OF THE AMERICAN BULLFROG IN EASTERN COLOMBIA

Abstract

Free-living tadpoles of the American Bullfrog, Rana catesbeiana, an introduced species, were found in eastern Boyacá. The introduction of this alien into the Amazon Basin could cause dramatic changes in the frog fauna there.