Results

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Property Organism Value Units ID Details
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....
Number of described and undescribed animal species Biosphere described ~1,900,000: undescribed 11,000,000 species 113443 Pimm SL et al., The ...
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 ...
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 ...
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...
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 ...
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 ...
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 predicted protein-coding genes Physcomitrella patens 27949 genes 111377 Lang D, Zimmer AD, Rensing SA...
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 ...
Oxygen concentration below which 50% of coastal marine animal species die Various ~70 μmol/kg 108704 Seibel BA. Critical oxygen...
Km and kcat values of psychrophilic (P) and mesophilic (M) enzymes Various Table - link N/A 114094 Tony Collins & Charles Gerday...
Fraction of biomass in the pelagic zone that is animals Biosphere ≤80 % 113585 Olivia P. Judson, The...
Activation parameters for activity of psychrophilic enzymes (P) as compared to those of their mesophilic counterparts (M) Various Table - link N/A 114095 Tony Collins & Charles Gerday...
Fraction of the four billion species estimated to have evolved on the Earth over the last 3.5 billion years that are extinct Biosphere ~99 % 112752 Barnosky AD et al., Has...
Time scale for appearance of photosynthetic O2 producing cyanobacteria Biosphere ~3200 MYA 103790 David L. Nelson, Michael...