Sentences with phrase «cent of amphibians»

Thirty per cent of amphibians, 23 % of mammals and 12 % of birds are under threat of extinction, while one in 10 of the world's major rivers runs dry every year before it reaches the sea.

Not exact matches

It is thought to be responsible for a 12 per cent drop in the population of one group of Mexican lizards since 1975, and a 75 per cent decline in reptiles and amphibians in Costa Rica's native forests since 1970.

Mountain amphibians in Central America have declined dramatically, and around 50 per cent of species, including the tree frog Hyla calypsa (pictured), are thought to have become extinct.

A surprising proportion of species found in Australia are native — nearly half the 770 bird species, most reptiles and amphibians including 93 per cent of the frogs, most of the 141 marsupial species, about 90 per cent of the 20 000 named plants, and the majority of fish species in temperate waters.