Semantic resource visits

(March 2026)

# name visits
1 Traits Thesaurus (TRAITS_THES) 808
2 Chemical Functional Ontology (CHEMFONT) 657
3 EuroVoc (EUROVOC) 373
4 Sandy Beach Thesaurus (SBTHES) 194
5 Environmental Thesaurus (ENVTHES) 151
6 Fish Traits Thesaurus (FISHTRAITS) 123
7 Environmental Research Infrastructures Thesaurus (ERITHES) 118
8 Coastal and Marine Ecological Classification Standard Catalog (CMECS) 89
9 Phytoplankton Traits Thesaurus (PHYTOTRAITS) 67
10 EuroSciVoc (EUROSCIVOC) 65
11 FuTRES Ontology of Vertebrate Traits (FOVT) 64
12 Phytoplankton VRE Thesaurus (PHYTOVRE) 59
13 Soil Food Web Ontology (SFWO) 52
14 ACTRIS Vocabulary (ACTRIS_VOCAB) 52
15 Plant-Pollinator Interactions (PPI) 48
16 LifeWatch ERIC Upper Ontology (LUPO) 39
17 Biodiversity Thesaurus (BIODIVTHES) 38
18 Ontology of Integrated Carbon Observation System (ICOS) (CPMETA) 36
19 Invasion Biology Ontology (INBIO) 33
20 Biomass VRE Thesaurus (BIOMASSVRE) 31
21 BioCollections Ontology (BCO) 31
22 Marine Strategy Framework Directive Vocabulary (MSFDVOCAB) 27
23 Annex I habitats for Natura 2000 (N2000_HABITATS) 26
24 Field of science and technology classification (FOS) 26
25 CODATA Research Data Management Terminology (CODATA-RDMT) 26
26 Macroalgae Traits Thesaurus (MACROALGAETRAITS) 25
27 Endemisms Thesaurus (ENDEMISMS) 23
28 eLTER Controlled Lists (ELTER_CL) 23
29 Zooplankton Traits Thesaurus (ZOOPLANKTRAITS) 22
30 Paleoenvironmental Standard Terms (PaST) Thesaurus (PAST) 22
31 ISO 639-2: Codes for the Representation of Names of Languages - Part 2: Alpha-3 Code for the Names of Languages (ISO_639-2) 22
32 The Ecosystem Services Monitoring Ontology (ESMO) 22
33 AGROVOC (AGROVOC) 20
34 MarineTLO Ontology (MARINETLO) 18
35 The Ecosystem Ontology (ECSO) 18
36 Darwin Core Pathway Controlled Vocabulary (DWCPW) 18
37 WISE Classification system (WISE_CLASS) 17
38 SnowTerm Thesaurus (SNOWTERM) 15
39 The DMP Common Standard Ontology (DCSO) 14
40 Population and Community Ontology (PCO) 13
41 The Interpretation Ontology (INTERPRETATION) 13
42 Geologic Units (GEOLOGIC_UNITS) 13
43 eurio (EURIO) 13
44 Geologic Structures (GEO_STRUCTURES) 12
45 The Extensible Observation Ontology (OBOE) 11
46 The Archive Type Ontology (ARCHIVE) 11
47 The Paleo Units Ontology (PALEO_UNITS) 10
48 Lithology (LITHOLOGY) 10
49 FAIR Implementation Profile (FIP) Ontology (FIP_ONTOLOGY) 10
50 An ontology of core ecological entities (ECOCORE) 10
51 Audubon Core Controlled Vocabulary for Dublin Core format (ACFORMAT) 10
52 The Linked Earth Core Ontology (LIPD_ONTOLOGY) 9
53 FRBR-aligned Bibliographic Ontology (FABIO) 9
54 Sustainable Meat Systems Ontology (SUMSO) 8
55 The Provenance of Emission Calculations Ontology (PECO) 8
56 Marine Regions PlaceTypes code list (MRPTCODELIST) 8
57 I-ADOPT Framework ontology (I-ADOPT) 8
58 GeoSpecies Ontology (GEOSP) 7
59 Ecological Trait-data Standard (ETS) 7
60 Ecotoxicology thesaurus (ECOTOXICTHES) 6
61 Biogeographical regions (BIOREGIONS) 6
62 Social Insect Behavior Ontology (SIBO) 5
63 Darwin Core Degree Of Establishment Controlled Vocabulary (DWCDOE) 5
64 Darwin-SW (DSW) 5
65 The Paleo Proxy Ontology (PALEO_PROXY) 4
66 The Linked Earth Instrument Ontology (INSTRUMENT) 4
67 Darwin Core Establishment Means Controlled Vocabulary (DWCEM) 4
68 The Wildlive Monitoring Ontology (WLMO) 3
69 Marine Regions ontology (MR) 3
70 EUNIS habitats (EUNIS_HABITATS) 3
71 ACTRIS Controlled Lists (ACTRIS_CL) 3
72 Audubon Core subtype Controlled Vocabulary (ACSUBTYPE) 2
73 UMLS Semantic Network (STY) 1
74 Porifera Ontology (PORO) 1
75 FAIR Vocabulary (FAIR_VOCABULARY) 1
76 Alien Species Thesaurus (ALIENSPECIES) 1
77 Audubon Core variant Controlled Vocabulary (ACVARIANT) 1