These data build on the UK Systematics Forum originlly undertaken in the mid 1990s and updated as part of asurvey for the GTI. The data were returned by questionnaire. The public interface to these data can be found here .
| Age Class | Total | Male | Female |
| <20 | 2 | 1 | 0 |
| 21-30 | 14 | 8 | 2 |
| 31-40 | 155 | 120 | 32 |
| 41-50 | 230 | 184 | 47 |
| 51-60 | 235 | 206 | 26 |
| >60 | 169 | 152 | 20 |
| Not given | 56 | 31 | 16 |
| Total | 861 | 702 | 143 |
| Acanthocephala | 2 | Kinetoplastidea | 5 |
| Acari | 10 | Kinorhyncha (=Echinodera) | 1 |
| Actinobacteria | 7 | Lepidoptera | 43 |
| Actinopterygii (=Osteichthyes) | 16 | Lichenized fungi | 17 |
| Aeroendospora | 2 | Lycophyta | 27 |
| Agnatha | 7 | Malacostraca | 25 |
| Amphibia | 21 | Mallophaga | 3 |
| Anaerobic, phototrophic bacteria | 5 | Mammalia | 43 |
| Animal - Parasitic | 7 | Mecoptera | 3 |
| Annelida | 9 | Megaloptera | 7 |
| Anoplura | 1 | Merostomata | 5 |
| Antherocerotae | 6 | Metacaryotes | 3 |
| Anthophyta | 74 | Metamonada | 2 |
| Anthozoa | 13 | Methanocreatrices | 3 |
| Aplacophora | 4 | Micrococci | 3 |
| Arachnida | 6 | Microsporea | 1 |
| Aranea | 22 | Microsporidia | 4 |
| Archezoa | 1 | Mitotic fungi | 19 |
| Arthropoda | 11 | Mollusca | 25 |
| Ascomycota | 33 | Monocotyledons | 94 |
| Asteroidea | 8 | Monogenea | 3 |
| Aves | 32 | Monoplacophora | 5 |
| Bacillariophyeae | 19 | Musci | 16 |
| Basidiomycota | 24 | Mycetozoa | 2 |
| Bivalvia | 35 | Mycorrhizal fungi | 11 |
| Brachiopoda | 11 | Mystacocarida | 2 |
| Branchiopoda | 4 | Myxomycota (Mycetozoa) | 7 |
| Branchiura | 2 | Myzostomaria | 1 |
| Bryophyta | 32 | Nematoda | 9 |
| Bryozoa (=Ectoprocta; Polyzoa) | 6 | Nematomorpha (=Gordiacea) | 1 |
| Cephalochordata | 1 | Nemertinea (=Rhynchocoela) | 3 |
| Cephalopoda | 16 | Neuroptera | 8 |
| Cestoda | 5 | Nitrogen-fixing aerobic bacteria | 5 |
| Cestodaria | 3 | Odonata | 16 |
| Chaetognatha | 4 | Oligochaeta | 9 |
| Charophyta | 6 | Onmnibacteria | 3 |
| Chemoautotrophic bacteria | 4 | Oomycota | 8 |
| Chilopoda | 11 | Ophiuroidea | 8 |
| Chlorophyta | 21 | Opiliones | 11 |
| Chloroxybacteria | 1 | Orthoptera | 13 |
| Chondrichthyes | 9 | Ostracoda | 13 |
| Chordata | 9 | Oxymonodea | 1 |
| Chromophyta | 10 | Parabasalia | 2 |
| Chrysophyceae | 11 | Pauropoda | 1 |
| Chytridiomycota | 5 | Phaeophyceae | 14 |
| Ciliophora | 10 | Phasmida | 1 |
| Cnidaria (= Coelenterata) | 8 | Phoronida | 2 |
| Coccidea | 1 | Phylactolaemata | 1 |
| Coleoptera | 43 | Pisces | 19 |
| Collembola | 1 | Placodermi | 1 |
| Coniferophyta | 32 | Plant - Parasitic | 2 |
| Conodonta | 3 | PLANTS | 9 |
| Copepoda | 12 | Platyhelminthes | 4 |
| Crinoidea | 2 | Plecoptera | 9 |
| Crustacea | 14 | Polychaeta | 22 |
| Cryptophyta | 10 | Polyplacophora | 5 |
| Ctenophora | 4 | Porifera | 10 |
| Cubozoa | 3 | Priapulida | 2 |
| Cyanobacteria | 21 | PROKARYOTAE | 6 |
| Cycadophyta | 17 | PROTISTA | 2 |
| Dermaptera | 2 | Pseudomonads | 11 |
| Dicotyledons | 152 | Pseudoscorpiones | 3 |
| Dictyoptera | 4 | Psilophyta | 14 |
| Dinoflagellata | 15 | Psocoptera | 3 |
| Diplomonada | 1 | Pterophyta | 51 |
| Diplopoda | 8 | Pycnogonida (=Pantopoda) | 4 |
| Diptera | 58 | Raphidioptera | 3 |
| Echinodermata | 9 | Raphidophyceae | 6 |
| Echinoidea | 9 | Remipedia | 1 |
| Echiura | 2 | Reptilia | 38 |
| Entoprocta (=Kamptozoa) | 2 | Rhodophyta | 21 |
| Ephemeroptera | 12 | Rotifera | 3 |
| Euglenidea | 4 | Sarcopterygii | 4 |
| Euglenozoa | 4 | Scaphopoda | 2 |
| Fermenting bacteria | 7 | Scorpionida | 7 |
| Foraminifera | 4 | Scyphozoa | 6 |
| Free-living | 10 | Siphonaptera | 2 |
| Gastropoda | 43 | Sipuncula | 4 |
| Gastrotricha | 2 | Sphenophyta | 27 |
| Ginkgophyta | 12 | Stenolaemata | 4 |
| Gnetophyta | 7 | Symphyla (=Symphylida) | 1 |
| Gymnolaemata | 6 | Tantulocarida | 3 |
| Halophilic & thermoacidophilic bacteria | 4 | Tardigrada | 3 |
| Haptophyceae | 13 | Thecostraca (=Cirripeda) | 3 |
| Hemichordata | 5 | Thysanoptera | 4 |
| Hemiptera | 35 | Trematoda | 10 |
| Hepaticae | 11 | Trichomonadea | 1 |
| Hirudinea | 4 | Trichoptera | 5 |
| Holothuroidea | 6 | Trilobitomorpha | 7 |
| Hydrozoa | 10 | Turbellaria | 6 |
| Hymenoptera | 38 | Urochordata | 3 |
| Hyolitha | 1 | Vertebrata | 6 |
| Hypermastigea | 1 | Vestimentifera | 1 |
| Insecta | 32 | Xanthophyceae | 11 |
| Insect-Parasitic | 1 | Yeasts and yeast-like fungi | 6 |
| Isoptera | 5 | Zygomycota | 10 |
1.Anglia Polytechnic University
2.BioNET-INTERNATIONAL Technical Secretariat
3.Biosis (UK) Zoological Record
4.Biosystematica
5.Birdlife International
6.Birkbeck College; University of London
7.Birmingham Museum and Art Gallery
8.Booth Museum of Natural History
9.Botanical Museum and Library; University of Copenhagen
10.Bristol City Museum and Art Gallery
11.British Antarctic Survey
12.British Geological Survey
13.Buckingham University
14.Buckinghamshire County Museum
15.CABI Bioscience
16.Cabinet Office; Whitehall
17.Canterbury City Museums
18.Centre for Ecology and Hydrology
19.Centre for Population Biology
20.Chapman and Hall
21.City Museum and Art Gallery; Stoke-on-Trent
22.Clyde River Purification Board
23.Commonwealth Institute of Entomology
24.De Montfort University
25.Dept of Agriculture & Rural Development; N Ireland
26.Earth and Oceanix Sciences Research Institute
27.English Nature
28.Environment and Resource Technology Ltd
29.Freelance
30.Gallery Oldham
31.Glasgow City Council: Culture and Leisure Services
32.Global Environmental Research Office
33.GLOSCAT
34.Green College Centre
35.Grosvenor Museum
36.Hampshire County Council Museums Service
37.Harrison Zoological Museum
38.Herbert Art Gallery and Museum
39.Heriot-Watt University
40.Hope Entomological Collections; University Museum of Natural History; Oxford
41.Hull City Museums and Art Galleries
42.Hunterian Museum and Art Gallery; University of Glasgow
43.Imperial College
44.Imperial College/Natural History Museum
45.Institute of Arable Crops Research
46.Institute of Cell and Molecular Biology; University of Edinburgh
47.Institute of Food Research
48.Institute of Freshwater Ecology; Edinburgh
49.Institute of Freshwater Ecology; Wareham
50.Institute of Freshwater Ecology; Windermere
51.Institute of Terrestrial Ecology; Bangor
52.Institute of Terrestrial Ecology; Cumbria
53.Institute of Terrestrial Ecology; Wareham
54.Institute of Zoology
55.International Institute of Biotechnology; Mircen
56.Ipswich Museum
57.John Innes Centre
58.Joint Nature Conservation Committee
59.Keele University
60.Lakeland Horticultural Society
61.Lancashire County Museum Service
62.Lapworth Museum
63.Leeds City Museum
64.Leicestershire Museums / Dept Geology; University of Leicester
65.Leicestershire Museums Service
66.Liverpool John Moores University
67.Liverpool Museum
68.Liverpool School of Tropical Medicine
69.Long Ashton Research Station
70.Luton Museum and Art Gallery
71.Manchester University Museum
72.Marine Biological Association of the UK
73.Middlemarch Environmental Ltd
74.Middlesex University
75.Mycology Reference Laboratory
76.Napier University
77.National Institute of Agricultural Botany
78.National Museums and Galleries of Wales
79.National Museums and Galleries on Merseyside
80.National Museums of Scotland
81.Natural History Museum
82.Natural History Museum/Dept Biochemistry; Cambridge University
83.Natural Resources Institute
84.Newcastle University
85.NMGW Cardiff
86.North of England Zoological Society
87.Nottingham Trent University
88.Open University
89.Oxford University
90.Oxford University Museum of Natural History
91.Paisley Museum
92.Pallab Research and Centre for Palynological Studies; University of Sheffield
93.Perth Museum and Art Gallery
94.PlantNET
95.Plymouth College of Further Education
96.Plymouth Marine Laboratory
97.Port Erin Marine Laboratory
98.Public Health Laboratory Service
99.Queen Mary and Westfield College
100.Queen Mary & Westfield College
101.Queen's University of Belfast
102.Rothamsted Experimental Research Station
103.Royal Botanic Garden Edinburgh
104.Royal Botanic Gardens; Kew
105.Royal Holloway College; University of London
106.Royal Horticultural Society
107.S. O. E. F. D. Marine Laboratory
108.Scottish Association for Marine Science
109.Scottish Natural Heritage
110.Sheffield City Museum
111.Southampton Oceanography Centre
112.Southend-on-Sea Museum Service
113.Stanley Smith (UK) Horticultural Trust
114.Stoke-on-Trent City Museum and Art Gallery
115.Subsea Survey
116.The London Hospital Medical College
117.Trinity College Dublin
118.Ulster Museum
119.United Medical and Dental Schools
120.University College London
121.University College of Ripon and York
122.University Marine Biological Station Millport
123.University Museum of Zoology; Cambridge
124.University of Aberdeen
125.University of Bath
126.University of Birmingham
127.University of Bradford
128.University of Bristol
129.University of Cambridge
130.University of Cambridge Botanic Garden
131.University of Cambridge; Museum of Zoology
132.University of Central Lancashire
133.University of Derby
134.University of Dundee
135.University of Durham
136.University of East Anglia
137.University of East London
138.University of Edinburgh
139.University of Essex
140.University of Exeter
141.University of Glasgow
142.University of Greenwich
143.University of Hertfordshire
144.University of Hull
145.University of Kent
146.University of Lancaster
147.University of Leeds
148.University of Leicester
149.University of Liverpool
150.University of Liverpool Botanic Gardens
151.University of Manchester
152.University of Newcastle upon Tyne
153.University of Nottingham
154.University of Oxford
155.University of Paisley
156.University of Plymouth
157.University of Portsmouth
158.University of Reading
159.University of Salford
160.University of Sheffield
161.University of Southampton
162.University of Stirling
163.University of Sunderland
164.University of Sussex
165.University of Ulster
166.University of Wales; Aberystwyth
167.University of Wales; Bangor
168.University of Wales; Cardiff
169.University of Wales; Swansea
170.University of Warwick
171.University of York
172.Warwickshire Museum
173.Weston Research Laboratories
174.Whitestone Gardens Ltd
175.Wye College; University of London
176.Yorkshire Museum