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- National Center for Biotechnology Information
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- Biodiversity 101: Protecting the variety of life on Earth | TNC
Humankind has catalogued roughly 1 75 million of the world’s living species, but scientists estimate that we actually share Earth with 10 to 100 million species! What about biodiversity within species?
- Top 10 Threats to Biodiversity Explained - Green Coast
Spanning all five taxonomic kingdoms of living things, scientists estimate that there may be up to one trillion species on Earth More conservative estimates range from 5 3 million to 8 7 million By locating markers unique to a particular groups’ DNA (genetic) samples, scientists declare taxonomic classifications
- Biodiversity - Population Matters
But nature is under pressure as never before Our needs for food, water and land, and our demands for energy and more and more stuff are destroying habitats, polluting our air and water, and driving species of animals and plants to extinction We are now losing biodiversity up to ten thousand times faster than it was disappearing 100 years ago
- Biodiversity | Definition Facts | Britannica
Biodiversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth A common measure of this variety, called species richness, is the count of species in an area Biodiversity encompasses the genetic variety within each species and the variety of ecosystems that species create
- 12. 3: Extinction - Biology LibreTexts
According to a 2019 United Nations report, 1 million species are at risk of extinction Considering there are estimated to be 8-11 million species total (see The Number of Species on Earth), that means up to 12 5% of species could go extinct, and many of them within our lifetimes
- Estimating the Normal Background Rate of Species Extinction.
Median diversification rates were 0 05-0 2 new species per million species per year On the basis of these results, we concluded that typical rates of background extinction may be closer to 0 1 E MSY
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