In the US, 40% of animals and 34% of plants are at risk of extinction, while 41% of ecosystems are at risk of collapse. The report, which analyzes data from a network of 1,000 scientists in the US and Canada, was described as terrifying by NatureServe president Sean O'Brien, according to the NatureServe study.
Texas, California and the southeastern United States have the highest proportions of endangered plants and animals. Among the endangered species are, for example, the carnivorous plant Venus flytrap, which is found in the wild only in a few counties in North and South Carolina.
It still accounts for almost half of the cactus species and 200 tree species. Among ecosystems, America's vast temperate prairies are among the most at risk. Threats include habitat degradation and land conversion, river pollution, and climate change.
Democrat Congressman Don Beyer said: "The data reported by NatureServe is grim, a heartbreaking sign of the real problems our wildlife and ecosystems are facing. I am grateful for their efforts, which will give a boost to efforts to protect biodiversity." The biome made up of grasslands, savannas and temperate scrub is dominated by herbaceous and/or shrubby vegetation; the climate is temperate, oscillating between semi-arid and semi-humid.
The temperature varies between warm and scorching, often with a cold or freezing winter season. The soils are fertile, with an abundance of nutrients and mineral salts. The flora is mostly made up of meadows; trees or shrubs in savannahs and shrublands.
The fauna consists of large ruminant mammals, birds and reptiles. Steppes or low grasslands are low grasslands that form in semi-arid climates. On the other hand, high grasslands are pastures with taller grasses and are formed in areas with higher rainfall.
The heaths and pastures consist, respectively, of low shrubs and meadows in places where the growth of the forest is hindered by human activities, but not by the climate. Tall grasslands, such as the tall grasslands of North America and the wet pampas of Argentina, grow in areas with moderate rainfall and rich soils, making them ideal for extensive cattle ranching.
The high prairie ecoregions are home to some of the most productive agricultural lands in the world. Savannahs are areas that are home to both grasses and trees, but the trees do not grow to a density high enough to form a continuous canopy like that of a forest.