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Biologists most often define biodiversity as the "totality of genes, species and ecosystems of a region". [8] [9] An advantage of this definition is that it presents a unified view of the traditional types of biological variety previously identified: taxonomic diversity (usually measured at the species diversity level) [10]
Megadiversity means exhibiting great biodiversity. The main criterion for megadiverse countries is endemism at the level of species, genera and families. A megadiverse country must have at least 5,000 species of endemic plants and must border marine ecosystems.
Ecosystem diversity addresses the combined characteristics of biotic properties which are living organisms (biodiversity) and abiotic properties such as nonliving things like water or soil (geodiversity). It is a variation in the ecosystems found in a region or the variation in ecosystems over the whole planet.
Biodiversity Other Primary Boreal Forests: 1,042 billion tonnes of carbon, more than currently found in the atmosphere, 2 times more than all human caused emissions since the year 1870. Biodiversity services given by Canada forest alone are estimated as 703 billion dollars per year. Important for almost half of the birds in North America.
There are 18 biosphere reserves in India. [1] They protect larger areas of natural habitat than a typical national park or animal sanctuary, and often include one or more national parks or reserves, along with buffer zones that are open to some economic uses.
Global biodiversity is the measure of biodiversity on planet Earth and is defined as the total variability of life forms. More than 99 percent of all species [ 1 ] that ever lived on Earth are estimated to be extinct .
[7] [8] Spanning 7,506.22 km 2 (2,898.17 sq mi), Kutch Desert Wildlife Sanctuary in Gujarat is the largest wildlife sanctuary in the country. [9] The Andaman and Nicobar Islands have the most number of wildlife sanctuaries. [10]
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time.Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. [1]