Semantic resource visits

(June 2026)

# name visits
1 FuTRES Ontology of Vertebrate Traits (FOVT) 21,321
2 Chemical Functional Ontology (CHEMFONT) 12,149
3 ACTRIS Vocabulary (ACTRIS_VOCAB) 3,497
4 Traits Thesaurus (TRAITS_THES) 3,009
5 Coastal and Marine Ecological Classification Standard (CMECS) 2,066
6 SnowTerm (SNOWTERM) 2,045
7 Environmental Thesaurus (ENVTHES) 1,860
8 Geologic Units (GEOLOGIC_UNITS) 1,181
9 ISO 639-2: Codes for the Representation of Names of Languages - Part 2: Alpha-3 Code for the Names of Languages (ISO_639-2) 928
10 Soil Food Web Ontology (SFWO) 798
11 EuroVoc Core Concepts (EUROVOC) 783
12 CODATA Research Data Management Terminology (CODATA-RDMT) 669
13 Biodiversity Thesaurus (BIODIVTHES) 610
14 ACTRIS Controlled Lists (ACTRIS_CL) 530
15 FAIR Implementation Profile (FIP) Ontology (FIP_ONTOLOGY) 410
16 eLTER Controlled Lists (ELTER_CL) 401
17 Alien Species Thesaurus (ALIENSPECIES) 401
18 Geologic Structures (GEO_STRUCTURES) 390
19 FRBR-aligned Bibliographic Ontology (FABIO) 388
20 Audubon Core Controlled Vocabulary for Dublin Core format (ACFORMAT) 383
21 Invasion Biology Ontology (INBIO) 349
22 Macroalgae Traits Thesaurus (MACROALGAETRAITS) 339
23 WISE Classification system (WISE_CLASS) 255
24 The Paleo Proxy Ontology (PALEO_PROXY) 245
25 Lithology (LITHOLOGY) 216
26 Ecological Trait-data Standard (ETS) 203
27 The Ecosystem Ontology (ECSO) 182
28 The Extensible Observation Ontology (OBOE) 161
29 The DMP Common Standard Ontology (DCSO) 153
30 EUNIS habitats (EUNIS_HABITATS) 147
31 The Linked Earth Core Ontology (LIPD_ONTOLOGY) 140
32 I-ADOPT Framework ontology (I-ADOPT) 104
33 Phytoplankton VRE Thesaurus (PHYTOVRE) 91
34 Darwin Core Pathway Controlled Vocabulary (DWCPW) 76
35 Ontology of Integrated Carbon Observation System (ICOS) (CPMETA) 72
36 Fish Traits Thesaurus (FISHTRAITS) 68
37 Endemisms Thesaurus (ENDEMISMS) 56
38 Biogeographical regions (BIOREGIONS) 50
39 Audubon Core variant Controlled Vocabulary (ACVARIANT) 48
40 BioCollections Ontology (BCO) 43
41 Phytoplankton Traits Thesaurus (PHYTOTRAITS) 39
42 EuroSciVoc (EUROSCIVOC) 33
43 The Interpretation Ontology (INTERPRETATION) 30
44 Darwin-SW (DSW) 28
45 Field of science and technology classification (FOS) 27
46 Marine Regions PlaceTypes code list (MRPTCODELIST) 26
47 Marine Regions ontology (MR) 24
48 MarineTLO Ontology (MARINETLO) 24
49 eurio (EURIO) 22
50 AGROVOC (AGROVOC) 20
51 Population and Community Ontology (PCO) 11
52 The Paleo Units Ontology (PALEO_UNITS) 10
53 UMLS Semantic Network (STY) 7
54 LifeWatch ERIC Upper Ontology (LUPO) 5
55 Darwin Core Establishment Means Controlled Vocabulary (DWCEM) 4
56 Darwin Core Degree Of Establishment Controlled Vocabulary (DWCDOE) 4
57 Zooplankton Traits Thesaurus (ZOOPLANKTRAITS) 2
58 The Linked Earth Instrument Ontology (INSTRUMENT) 2
59 FAIR Vocabulary (FAIR_VOCABULARY) 1
60 test5 (TEST5) 0
61 test4 (TEST4) 0
62 TEST3 (TEST3) 0
63 test2 (TEST2) 0
64 test (TEST) 0
65 Service Types (ST) 0
66 SCAR Gazetteer of Antarctica (SCAR_CGA) 0
67 The Paleo Variables Ontology (PALEO_VARIABLES) 0
68 Annex I habitats for Natura 2000 (N2000HABITATS) 0
69 ICOS instrument (ICOSINST) 0
70 EARTh - Environmental Applications Reference Thesaurus (EARTH) 0
71 BiomassVRE (BIOVRE) 0
72 The Archive Type Ontology (ARCHIVE) 0
73 Agricultural products (AGRIPOD) 0
74 Audubon Core subtype Controlled Vocabulary (ACSUBTYPE) 0