MegaFauna in Australia

Australia is one of Earths twelve mega several(a) nations. Its unique plant life, is typified by the unequivocally Australian gum tree, distinguishes Australia as one of the worlds sextette floristic regions. non b bely is Australia rich in species, but most of its native-born plants and animals are endemic; that is, they occur naturally only in Australia. Australias high levels of uniqueness arise because for more than 50 gazillion years, Australia has been an island unstained and its zoological science and flora has evolved in isolation. cardinal part of Australias flowering plants, 84 % of mammals, 89 % of reptiles, 93 % of frogs, and 85 % of offshore marine fish are unique to Australia. level(p) among the passing winding birds, 45 % of species are confined to Australia. There are legion(predicate) reasons why Australia is rich in species. Despite an absence of heroic mountain ranges and extensive forests, the continent spans nearly 35 degrees of parallel of latit ude from 5 degrees in the north to nearly 40 degrees southeastern and has a precipitous rainfall gradient from the lopsided Continental fringes to the arid interior. These gradients from the tropics to the cool temperate zones and from the wet to the run dry produce a succession of communities, each with its distinctive and highly adapted flora and fauna. The long stableness of the continent has to a fault been important in the evolution of a diverse fauna and flora and the continents richest plant communities are found in the southwest of Western Australia and in the east on the sandstones wrap Sydney. some(prenominal) regions pay a long history of stability and have not been glaciated or covered by the oceans for tens of millions of years. The stem of some flora can be traced nates to the Pangaean measure For example, the fossil kauri pine Agathis jurassica... If you penury to puddle a full essay, order it on our website: OrderCustom! Paper.com

If you want to get a full essay, visit our page: write my paper