The coniferous forest account for roughly 24-27% of global tree cover The largest area of wetlands in any ecosystem of the world is found in the Canadian boreal region with more lakes and rivers than anywhere else. Coniferous forests are home to 85 species of mammals, 130 species of fish, 32,000 species of insects, and 300 species of birds. Coniferous forest ecosystems are the largest terrestrial biomes on earth and home to a wide variety of animals and plants.