Semantic resource visits

(September 2026)

# name visits
1 Chemical Functional Ontology (CHEMFONT) 38,770
2 FuTRES Ontology of Vertebrate Traits (FOVT) 8,015
3 AGROVOC (AGROVOC) 3,131
4 ACTRIS Vocabulary (ACTRIS_VOCAB) 2,485
5 Environmental Thesaurus (ENVTHES) 2,238
6 Soil Food Web Ontology (SFWO) 1,839
7 SnowTerm (SNOWTERM) 1,678
8 Biodiversity Thesaurus (BIODIVTHES) 1,600
9 Geologic Units (GEOLOGIC_UNITS) 1,318
10 Coastal and Marine Ecological Classification Standard (CMECS) 1,284
11 BioCollections Ontology (BCO) 907
12 Invasion Biology Ontology (INBIO) 889
13 ISO 639-2: Codes for the Representation of Names of Languages - Part 2: Alpha-3 Code for the Names of Languages (ISO_639-2) 728
14 Traits Thesaurus (TRAITS_THES) 718
15 Geologic Structures (GEO_STRUCTURES) 656
16 CODATA Research Data Management Terminology (CODATA-RDMT) 648
17 EuroSciVoc (EUROSCIVOC) 627
18 WISE Classification system (WISE_CLASS) 575
19 Ontology of Integrated Carbon Observation System (ICOS) (CPMETA) 548
20 The Paleo Units Ontology (PALEO_UNITS) 495
21 EuroVoc Core Concepts (EUROVOC) 479
22 eLTER Controlled Lists (ELTER_CL) 425
23 Lithology (LITHOLOGY) 368
24 MarineTLO Ontology (MARINETLO) 333
25 FAIR Implementation Profile (FIP) Ontology (FIP_ONTOLOGY) 310
26 The Paleo Proxy Ontology (PALEO_PROXY) 308
27 Phytoplankton VRE Thesaurus (PHYTOVRE) 293
28 Alien Species Thesaurus (ALIENSPECIES) 272
29 Phytoplankton Traits Thesaurus (PHYTOTRAITS) 260
30 eurio (EURIO) 224
31 Fish Traits Thesaurus (FISHTRAITS) 217
32 The Linked Earth Core Ontology (LIPD_ONTOLOGY) 202
33 FRBR-aligned Bibliographic Ontology (FABIO) 194
34 Population and Community Ontology (PCO) 191
35 Macroalgae Traits Thesaurus (MACROALGAETRAITS) 183
36 The Extensible Observation Ontology (OBOE) 179
37 The Ecosystem Ontology (ECSO) 168
38 FAIR Vocabulary (FAIR_VOCABULARY) 147
39 Darwin Core Pathway Controlled Vocabulary (DWCPW) 140
40 Ecological Trait-data Standard (ETS) 131
41 The DMP Common Standard Ontology (DCSO) 129
42 Audubon Core Controlled Vocabulary for Dublin Core format (ACFORMAT) 116
43 Zooplankton Traits Thesaurus (ZOOPLANKTRAITS) 115
44 Field of science and technology classification (FOS) 115
45 The Interpretation Ontology (INTERPRETATION) 104
46 Darwin-SW (DSW) 92
47 I-ADOPT Framework ontology (I-ADOPT) 79
48 Audubon Core subtype Controlled Vocabulary (ACSUBTYPE) 79
49 EUNIS habitats (EUNIS_HABITATS) 72
50 LifeWatch ERIC Upper Ontology (LUPO) 69
51 Biogeographical regions (BIOREGIONS) 64
52 The Archive Type Ontology (ARCHIVE) 64
53 Marine Regions ontology (MR) 57
54 Endemisms Thesaurus (ENDEMISMS) 57
55 Darwin Core Degree Of Establishment Controlled Vocabulary (DWCDOE) 54
56 Darwin Core Establishment Means Controlled Vocabulary (DWCEM) 52
57 ACTRIS Controlled Lists (ACTRIS_CL) 47
58 Audubon Core variant Controlled Vocabulary (ACVARIANT) 37
59 The Linked Earth Instrument Ontology (INSTRUMENT) 31
60 Marine Regions PlaceTypes code list (MRPTCODELIST) 22
61 UMLS Semantic Network (STY) 20
62 test (TEST) 0
63 Service Types (ST) 0
64 SCAR Gazetteer of Antarctica (SCAR_CGA) 0
65 The Paleo Variables Ontology (PALEO_VARIABLES) 0
66 Annex I habitats for Natura 2000 (N2000HABITATS) 0
67 ICOS instrument (ICOSINST) 0
68 EARTh - Environmental Applications Reference Thesaurus (EARTH) 0
69 BiomassVRE (BIOVRE) 0
70 Agricultural products (AGRIPOD) 0