The world of amphibians is being threatened. Although geochronologic scale has shown that extinction is rather common, the amphibians are disappearing at an alarming rate. More than 10 species are now considered completely extinct in the Neotropic ecozone, in Australia and New Zealand , in the recent 20 years. The latest studies have indicated that environmental factors play a major role in extinction; this includes contamination from pesticides and other substances, introduction of predators and competitors, commercial development, increasing exposure to ultraviolet radiation, and Chytrid infections. And yet, the most crucial cause is the disappearance of suitable habitats, especially the breeding grounds.
The impacts created by these extinctions have a profound effect. Amphibians represent the main component of terrestrial ecology, playing an important role in nutritional connection between the small invertebrate prey and the large vertebrates that feed on them. Likewise, tadpoles are not just the consumer of unicellular algae and organisms, but they bring nutrients from freshwater to habitats on land by metamorphosing into terrestrial adults.
Fundamental research provides the key knowledge on the biology of key species, the education for local residents on the concept of conserving amphibians, the preservation of the habitat, legislation on international trade management, and community reconstruction under a reasonable scope. However, all these activities would not be successful without maintaining suitable habitats.