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Summary
| Description |
English: The distribution of numbers of known and undescribed (estimated) species on Earth, grouped by major taxonomic groups. Absolute number of species on the left (orange = estimated number of yet to be described species, blue = already described). Right: percentage of species already described (green) and estimated to be not yet known (yellow). |
| Date | |
| Source | Own work |
| Author | Gregor Hagedorn |
Source data
The data are taken from Chapman 2009, summarized and with some estimates added for yet to describe species. The following changes were made: Many smaller groups aggregated (other Invertebrates encompasses more groups than in the original publication); Agnatha, Cephalochordata, Tunicata, Algae were estimated to have at least 1.5× as many final species; Cyanophyta was estimated to have same known/unknown ratio as Protoctista.
The following data are the basis for the graph:
Major group Described Undescribed Percent described Percent undescribed Global estimate Other Eukaryota 53915 1146585 4.5 95.5 1200500 Chordates (Mammals, Birds, Fishes, etc.) 64788 15712 80.5 19.5 80500 Other Invertebrates 100117 205713 32.7 67.3 305830 Insecta 1000000 4000000 20.0 80.0 5000000 Arachnida 102248 497752 17.0 83.0 600000 Nematoda 25000 475000 5.0 95.0 500000 Mollusca 85000 115000 42.5 57.5 200000 Crustacea 47000 103000 31.3 68.7 150000 Plants (Mosses, Algae, Vascul. Plants) 310129 80671 79.4 20.6 390800 Fungi (incl. Lichens) 98998 1401002 6.6 93.4 1500000 [Eukaryota] Prokaryota (Bacteria, Archaea, Cyanophyta) 10307 1081974 0.9 99.1 1092281 Viruses 2085 397915 0.5 99.5 400000
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:08, 1 April 2019 | | 1,850 × 1,526 (283 KB) | Gregor Hagedorn | Correction, right-hand label was wrong. |
| 00:14, 8 June 2018 |  | 1,622 × 1,371 (101 KB) | Gregor Hagedorn | User created page with UploadWizard |
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