Semantic resource visits

(May 2026)

# name visits
1 Chemical Functional Ontology (CHEMFONT) 2,292
2 Traits Thesaurus (TRAITS_THES) 918
3 Soil Food Web Ontology (SFWO) 729
4 Biodiversity Thesaurus (BIODIVTHES) 661
5 WISE Classification system (WISE_CLASS) 597
6 Invasion Biology Ontology (INBIO) 481
7 CODATA Research Data Management Terminology (CODATA-RDMT) 469
8 The Interpretation Ontology (INTERPRETATION) 350
9 Environmental Thesaurus (ENVTHES) 281
10 The Linked Earth Core Ontology (LIPD_ONTOLOGY) 217
11 Lithology (LITHOLOGY) 206
12 Coastal and Marine Ecological Classification Standard (CMECS) 206
13 Alien Species Thesaurus (ALIENSPECIES) 148
14 Darwin Core Pathway Controlled Vocabulary (DWCPW) 115
15 EuroVoc Core Concepts (EUROVOC) 95
16 Darwin-SW (DSW) 95
17 EUNIS habitats (EUNIS_HABITATS) 88
18 Phytoplankton Traits Thesaurus (PHYTOTRAITS) 62
19 The Paleo Proxy Ontology (PALEO_PROXY) 52
20 FuTRES Ontology of Vertebrate Traits (FOVT) 40
21 LifeWatch ERIC Upper Ontology (LUPO) 39
22 EuroSciVoc (EUROSCIVOC) 33
23 Audubon Core variant Controlled Vocabulary (ACVARIANT) 27
24 The Extensible Observation Ontology (OBOE) 26
25 Macroalgae Traits Thesaurus (MACROALGAETRAITS) 26
26 Field of science and technology classification (FOS) 21
27 I-ADOPT Framework ontology (I-ADOPT) 19
28 Zooplankton Traits Thesaurus (ZOOPLANKTRAITS) 15
29 ISO 639-2: Codes for the Representation of Names of Languages - Part 2: Alpha-3 Code for the Names of Languages (ISO_639-2) 15
30 Fish Traits Thesaurus (FISHTRAITS) 15
31 FAIR Implementation Profile (FIP) Ontology (FIP_ONTOLOGY) 12
32 SnowTerm (SNOWTERM) 11
33 AGROVOC (AGROVOC) 11
34 Darwin Core Degree Of Establishment Controlled Vocabulary (DWCDOE) 10
35 Phytoplankton VRE Thesaurus (PHYTOVRE) 9
36 ACTRIS Vocabulary (ACTRIS_VOCAB) 9
37 Marine Regions PlaceTypes code list (MRPTCODELIST) 8
38 eurio (EURIO) 8
39 BioCollections Ontology (BCO) 8
40 eLTER Controlled Lists (ELTER_CL) 7
41 Ontology of Integrated Carbon Observation System (ICOS) (CPMETA) 6
42 The Ecosystem Ontology (ECSO) 5
43 The Paleo Units Ontology (PALEO_UNITS) 4
44 Geologic Structures (GEO_STRUCTURES) 4
45 MarineTLO Ontology (MARINETLO) 3
46 Geologic Units (GEOLOGIC_UNITS) 3
47 Audubon Core Controlled Vocabulary for Dublin Core format (ACFORMAT) 3
48 Population and Community Ontology (PCO) 2
49 FAIR Vocabulary (FAIR_VOCABULARY) 2
50 Ecological Trait-data Standard (ETS) 2
51 Endemisms Thesaurus (ENDEMISMS) 2
52 Darwin Core Establishment Means Controlled Vocabulary (DWCEM) 2
53 The DMP Common Standard Ontology (DCSO) 2
54 The Archive Type Ontology (ARCHIVE) 2
55 TEST3 (TEST3) 1
56 UMLS Semantic Network (STY) 1
57 The Linked Earth Instrument Ontology (INSTRUMENT) 1
58 test5 (TEST5) 0
59 test4 (TEST4) 0
60 test2 (TEST2) 0
61 test (TEST) 0
62 Service Types (ST) 0
63 SCAR Gazetteer of Antarctica (SCAR_CGA) 0
64 The Paleo Variables Ontology (PALEO_VARIABLES) 0
65 Annex I habitats for Natura 2000 (N2000HABITATS) 0
66 Marine Regions ontology (MR) 0
67 ICOS instrument (ICOSINST) 0
68 FRBR-aligned Bibliographic Ontology (FABIO) 0
69 EARTh - Environmental Applications Reference Thesaurus (EARTH) 0
70 BiomassVRE (BIOVRE) 0
71 Biogeographical regions (BIOREGIONS) 0
72 Agricultural products (AGRIPOD) 0
73 ACTRIS Controlled Lists (ACTRIS_CL) 0
74 Audubon Core subtype Controlled Vocabulary (ACSUBTYPE) 0