Results
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Property | Organism | Value | Units | ID | Details |
---|---|---|---|---|---|
Number of plant species | Plants | ~350,000 (representing an estimated 80–90% of the global total) | species | 113395 | Vellend M et al., Plant... |
Fraction of land vertebrates including reptiles, birds, and amphibians that are experiencing a decline and losses in local population | Biosphere | ~30 | % | 117263 | The Lancet Planetary... |
Fraction of 3,623 terrestrial invertebrate species and of 1,306 marine invertebrate species that are classified as threatened with extinction | Invertebrates | terrestrial species 42%: marine species 25% | % | 117264 | Ceballos G, Ehrlich PR... |
Decrease in wildlife on Earth between 1970 and 2012 | Biosphere | ≤58 | % | 117265 | Ceballos G, Ehrlich PR... |
Fraction of number of individual animals that once shared the Earth with humans that are extinct | Biosphere | ≤50 | % of individual animals | 117268 | Ceballos G, Ehrlich PR... |
Fraction of the 1.9 million known recent species that are recorded as extinct | Biosphere | 0.04 ((799 species)) | % | 117269 | Régnier C et al., Mass... |
Number of described species | Invertebrates | ~1.4 | million species | 117270 | Régnier C et al., Mass... |
Number of species that have been described as of 2015 | Protists | >100,000 | species | 114593 | Soyer-Gobillard MO, Dolan... |
Fraction of the ≈10,000 presently known bird species that have become extinct since A.D. 1500 | Birds | ≈1.3 | % | 116938 | Pimm S, Raven P, Peterson A... |
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 ... |
Extinction rate | Birds | 132 | extinction/million species/year (E/MSY) | 113446 | 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 ... |
Decrease in bird population size in North America since 1970 | Biosphere | 29 | % | 117279 | Rosenberg KV et al.,... |
Gains and losses across the North American avifauna over the last half century | Biosphere | Table - link | N/A | 117280 | Rosenberg KV et al.,... |
Fraction of all angiosperms (flowering plants) that are asterids and rosids | Plants | asterids 41% rosids 24 | % | 116900 | Arrivault S et al., ... |
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 ... |
Km and kcat values of psychrophilic (P) and mesophilic (M) enzymes | Various | Table - link | N/A | 114094 | Tony Collins & Charles Gerday... |
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 ≈300,000 described flowering plant species that are threatened | Plants | 16 | % | 116939 | Pimm S, Raven P, Peterson A... |
Global insect fauna | Biosphere | ~10^18 | animals | 116941 | Kevin J. Gaston & Tim... |