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File:Species Distribution Biodiversity after Chapman 2009.png

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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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Captions

The distribution of numbers of known and undescribed (estimated) species on Earth, grouped by major taxonomic groups.

Items portrayed in this file

depicts

7 June 2018

File history

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Date/TimeThumbnailDimensionsUserComment
current15:08, 1 April 2019Thumbnail for version as of 15:08, 1 April 20191,850 × 1,526 (283 KB)Gregor HagedornCorrection, right-hand label was wrong.
00:14, 8 June 2018Thumbnail for version as of 00:14, 8 June 20181,622 × 1,371 (101 KB)Gregor HagedornUser created page with UploadWizard

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