Results
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| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| Number of described and undescribed animal species | Biosphere | described ~1,900,000: undescribed 11,000,000 | species | 113443 | Pimm SL et al., The ... |
| Number of species going extinct per day in the sixth (anthropocene) extinction | Biosphere | ≤150 | species/day | 117271 | Kaebnick GE, Jennings... |
| Fraction by which species richness is lower in agricultural land compared to minimally disturbed primary vegetation | Plants | ~30 | % | 113396 | Vellend M et al., Plant... |
| Estimated number of species | Insect | 5,000,000 - 6,000,000 | species | 113444 | Pimm SL et al., The ... |
| Number of cells of bacteria and archaea estimated to inhabit Earth | Biosphere | ~10^30 | cells | 113931 | Locey KJ, Lennon JT.... |
| Number of microbial species on Earth | Biosphere | 10^11 - 10^12 | species | 113932 | Locey KJ, Lennon JT.... |
| Total number of species | Biosphere | ~9 - 52 | million species | 117274 | Khan S et al., Overview... |
| Diversification rate | Eukaryotes | plants 0.06: birds 0.15: various chordates 0.2: arthropods 0.17: mammals 0.07 | new species/species/million years | 113447 | Pimm SL et al., The ... |
| Current (sixth, or anthropocene) extinction rates compared to natural background rates of extinction | Biosphere | current 1,000: future likely to be 10,000 | times higher than background extinction rate | 117272 | Khan S et al., Overview... |
| Fraction of the ≈300,000 described flowering plant species that are threatened | Plants | 16 | % | 116939 | Pimm S, Raven P, Peterson A... |
| Estimated number of species of land plants | Biosphere | >450,000 | species | 113442 | Pimm SL et al., The ... |
| Extinction rates calculated by cohort analysis and fractions of species that are critically endangered (CR) | vertebrates | Table - link | N/A | 113448 | Pimm SL et al., The ... |
| Loss of evolutionary history across mammalian orders (Expected contribution to phylogenetic diversity (PD)) | Biosphere | Table - link | N/A | 117256 | Davis M, Faurby S, Svenning... |
| Estimated number of marine species | Biosphere | primary source [9] 2.2±0.18: primary source [12] 0.7 - 1.0 | million species | 113445 | Pimm SL et al., The ... |
| Estimated rates of plant extinction and speciation in the distant past (background), the recent past (Anthropocene), and the future (projected) | Plants | Table - link | S/MSY (species per million species per year) | 113398 | Vellend M et al., Plant... |
| Number of described species of beetles (Coleoptera, the most species-rich group of organisms on Earth) | Insect | ~360,000 | described species | 113121 | Bouchard P et al., F... |
| Number of mammals that have gone extinct during the sixth mass extinction that started in the Late Pleistocene | Biosphere | >300 | mammal species | 117255 | Davis M, Faurby S, Svenning... |
| Number of plant species | Plants | ~350,000 (representing an estimated 80–90% of the global total) | species | 113395 | Vellend M et al., Plant... |
| Extinction rate | Birds | 132 | extinction/million species/year (E/MSY) | 113446 | Pimm SL et al., The ... |
| Rate of species extinction in sixth (anthropocene) mass extinction compared to the “normal rate” throughout geological time | Biosphere | 100 | times greater than “normal rate” | 117262 | Ceballos G, Ehrlich PR.... |