Semantic resource visits

(August 2026)

# name visits
1 Chemical Functional Ontology (CHEMFONT) 10,809
2 AGROVOC (AGROVOC) 5,597
3 FuTRES Ontology of Vertebrate Traits (FOVT) 3,435
4 An ontology of core ecological entities (ECOCORE) 2,238
5 BioCollections Ontology (BCO) 1,287
6 Traits Thesaurus (TRAITS_THES) 944
7 ACTRIS Vocabulary (ACTRIS_VOCAB) 810
8 EuroVoc (EUROVOC) 697
9 Soil Food Web Ontology (SFWO) 621
10 MarineTLO Ontology (MARINETLO) 518
11 Sandy Beach Thesaurus (SBTHES) 418
12 Population and Community Ontology (PCO) 412
13 Geologic Structures (GEO_STRUCTURES) 398
14 Paleoenvironmental Standard Terms (PaST) Thesaurus (PAST) 350
15 Invasion Biology Ontology (INBIO) 348
16 Biodiversity Thesaurus (BIODIVTHES) 343
17 ISO 639-2: Codes for the Representation of Names of Languages - Part 2: Alpha-3 Code for the Names of Languages (ISO_639-2) 237
18 Ontology of Integrated Carbon Observation System (ICOS) (CPMETA) 228
19 eLTER Controlled Lists (ELTER_CL) 224
20 Coastal and Marine Ecological Classification Standard Catalog (CMECS) 222
21 Environmental Thesaurus (ENVTHES) 214
22 Geologic Units (GEOLOGIC_UNITS) 192
23 CODATA Research Data Management Terminology (CODATA-RDMT) 159
24 SnowTerm Thesaurus (SNOWTERM) 151
25 Ecotoxicology thesaurus (ECOTOXICTHES) 146
26 The Ecosystem Services Monitoring Ontology (ESMO) 140
27 The Linked Earth Core Ontology (LIPD_ONTOLOGY) 111
28 FRBR-aligned Bibliographic Ontology (FABIO) 110
29 EuroSciVoc (EUROSCIVOC) 105
30 Phytoplankton Traits Thesaurus (PHYTOTRAITS) 96
31 Phytoplankton VRE Thesaurus (PHYTOVRE) 95
32 Environmental Research Infrastructures Thesaurus (ERITHES) 94
33 Biomass VRE Thesaurus (BIOMASSVRE) 84
34 Annex I habitats for Natura 2000 (N2000_HABITATS) 74
35 GeoSpecies Ontology (GEOSP) 73
36 The Archive Type Ontology (ARCHIVE) 73
37 The Ecosystem Ontology (ECSO) 71
38 eurio (EURIO) 69
39 Lithology (LITHOLOGY) 67
40 Ecological Trait-data Standard (ETS) 65
41 Fish Traits Thesaurus (FISHTRAITS) 62
42 LifeWatch ERIC Upper Ontology (LUPO) 58
43 FAIR Implementation Profile (FIP) Ontology (FIP_ONTOLOGY) 56
44 Darwin Core Establishment Means Controlled Vocabulary (DWCEM) 52
45 Social Insect Behavior Ontology (SIBO) 47
46 Plant-Pollinator Interactions (PPI) 47
47 Endemisms Thesaurus (ENDEMISMS) 46
48 Macroalgae Traits Thesaurus (MACROALGAETRAITS) 44
49 The Paleo Units Ontology (PALEO_UNITS) 41
50 Field of science and technology classification (FOS) 41
51 The Extensible Observation Ontology (OBOE) 39
52 Audubon Core subtype Controlled Vocabulary (ACSUBTYPE) 36
53 The Wildlive Monitoring Ontology (WLMO) 33
54 Zooplankton Traits Thesaurus (ZOOPLANKTRAITS) 32
55 EUNIS habitats (EUNIS_HABITATS) 31
56 WISE Classification system (WISE_CLASS) 29
57 Darwin-SW (DSW) 29
58 Audubon Core variant Controlled Vocabulary (ACVARIANT) 29
59 Porifera Ontology (PORO) 27
60 ACTRIS Controlled Lists (ACTRIS_CL) 26
61 Marine Regions PlaceTypes code list (MRPTCODELIST) 24
62 Marine Strategy Framework Directive Vocabulary (MSFDVOCAB) 21
63 Marine Regions ontology (MR) 20
64 The DMP Common Standard Ontology (DCSO) 20
65 Common geographic areas (CGA) 19
66 The Interpretation Ontology (INTERPRETATION) 18
67 I-ADOPT Framework ontology (I-ADOPT) 18
68 FAIR Vocabulary (FAIR_VOCABULARY) 18
69 Darwin Core Pathway Controlled Vocabulary (DWCPW) 18
70 Data Categories for Marine Planning (MPD) 17
71 Biogeographical regions (BIOREGIONS) 14
72 Sustainable Meat Systems Ontology (SUMSO) 13
73 USGS Thesaurus (USGSTHES) 9
74 Darwin Core Degree Of Establishment Controlled Vocabulary (DWCDOE) 9
75 Alien Species Thesaurus (ALIENSPECIES) 9
76 UMLS Semantic Network (STY) 7
77 The Linked Earth Instrument Ontology (INSTRUMENT) 7
78 Audubon Core Controlled Vocabulary for Dublin Core format (ACFORMAT) 7
79 Pollinator Ontology (POLON) 6
80 The Provenance of Emission Calculations Ontology (PECO) 6
81 LifeWatch Italy Semantic Platform Ontology (SPO) 5
82 The Paleo Proxy Ontology (PALEO_PROXY) 1