The dataset represents a collection of specimens of species of the Pteridium genus from the vast majority of herbarium collections in Ukraine and abroad.
","language":"eng","citation":{"text":"Bezsmertna O, Bondarenko G, Peregrym M (2026). Distribution of species of the genus Pteridium in Ukraine according to information from herbarium collections. Ukrainian Nature Conservation Group (NGO). Occurrence dataset https://doi.org/10.15468/p8xp2q accessed via GBIF.org on 2026-10-12.","citationProvidedBySource":false},"contactsCitation":[{"key":6965597,"abbreviatedName":"Bezsmertna O","firstName":"Olesya","lastName":"Bezsmertna","roles":["ORIGINATOR","METADATA_AUTHOR"],"userId":["https://orcid.org/0000-0001-8764-8878"]},{"key":6965598,"abbreviatedName":"Bondarenko G","firstName":"George","lastName":"Bondarenko","roles":["ORIGINATOR"],"userId":[]},{"key":6965599,"abbreviatedName":"Peregrym M","firstName":"Mykyta","lastName":"Peregrym","roles":["ORIGINATOR"],"userId":[]}],"lockedForAutoUpdate":false,"createdBy":"ca2fd897-6108-4361-91f8-b39dc8d12d13","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:30:16.052+00:00","modified":"2026-03-31T14:31:17.067+00:00","contacts":[{"key":6965597,"type":"ORIGINATOR","primary":true,"userId":["https://orcid.org/0000-0001-8764-8878"],"firstName":"Olesya","lastName":"Bezsmertna","position":["researcher"],"email":["olesya.bezsmertna@gmail.com"],"phone":[],"homepage":[],"organization":"Taras Shevchenko National University of Kyiv","address":[],"city":"Kyiv","country":"UA","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.033+00:00","modified":"2026-03-31T14:31:17.033+00:00"},{"key":6965598,"type":"ORIGINATOR","primary":false,"userId":[],"firstName":"George","lastName":"Bondarenko","position":[],"email":[],"phone":[],"homepage":[],"address":[],"country":"UA","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.036+00:00","modified":"2026-03-31T14:31:17.036+00:00"},{"key":6965599,"type":"ORIGINATOR","primary":false,"userId":[],"firstName":"Mykyta","lastName":"Peregrym","position":[],"email":[],"phone":[],"homepage":[],"address":[],"country":"UA","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.037+00:00","modified":"2026-03-31T14:31:17.037+00:00"},{"key":6965600,"type":"METADATA_AUTHOR","primary":true,"userId":["https://orcid.org/0000-0001-8764-8878"],"firstName":"Olesya","lastName":"Bezsmertna","position":["researcher"],"email":["olesya.bezsmertna@gmail.com"],"phone":[],"homepage":[],"organization":"Taras Shevchenko National University of Kyiv","address":[],"city":"Kyiv","country":"UA","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.039+00:00","modified":"2026-03-31T14:31:17.039+00:00"},{"key":6965601,"type":"CUSTODIAN_STEWARD","primary":false,"userId":["https://orcid.org/0000-0001-9380-5593"],"firstName":"Oleksii","lastName":"Marushchak","position":["researcher"],"email":["ecopelobates@gmail.com"],"phone":["+380964882670"],"homepage":["https://www.researchgate.net/profile/Oleksii-Marushchak"],"organization":"I. I. Schmalhausen Institute of Zoology NAS of Ukraine","address":["Vul. B. Khmelnytskogo, 15"],"city":"Kyiv","province":"N","country":"UA","postalCode":"01030","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.041+00:00","modified":"2026-03-31T14:31:17.041+00:00"},{"key":6965602,"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":true,"userId":["https://orcid.org/0000-0001-8764-8878"],"firstName":"Olesya","lastName":"Bezsmertna","position":["researcher"],"email":["olesya.bezsmertna@gmail.com"],"phone":[],"homepage":[],"organization":"Taras Shevchenko National University of Kyiv","address":[],"city":"Kyiv","country":"UA","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.042+00:00","modified":"2026-03-31T14:31:17.042+00:00"}],"endpoints":[{"key":1261485,"type":"DWC_ARCHIVE","url":"https://ukraine.ipt.gbif.no/archive.do?r=pteridiumsubspeciesherbariumolesbezsm","createdBy":"ca2fd897-6108-4361-91f8-b39dc8d12d13","modifiedBy":"ca2fd897-6108-4361-91f8-b39dc8d12d13","created":"2026-03-31T14:30:16.253+00:00","modified":"2026-03-31T14:30:16.253+00:00","machineTags":[]},{"key":1261484,"type":"EML","url":"https://ukraine.ipt.gbif.no/eml.do?r=pteridiumsubspeciesherbariumolesbezsm","createdBy":"ca2fd897-6108-4361-91f8-b39dc8d12d13","modifiedBy":"ca2fd897-6108-4361-91f8-b39dc8d12d13","created":"2026-03-31T14:30:16.217+00:00","modified":"2026-03-31T14:30:16.217+00:00","machineTags":[]}],"machineTags":[{"key":33142351,"namespace":"crawler.gbif.org","name":"crawl_attempt","value":"24","createdBy":"crawler.gbif.org","created":"2026-10-12T02:01:49.181+00:00"}],"tags":[],"identifiers":[{"key":465651,"type":"URL","identifier":"https://ukraine.ipt.gbif.no/resource?r=pteridiumsubspeciesherbariumolesbezsm","createdBy":"crawler.gbif.org","created":"2026-03-31T14:31:17.044+00:00","primary":false}],"comments":[],"bibliographicCitations":[],"curatorialUnits":[],"taxonomicCoverages":[{"description":"The dataset represents records of the two subspecies of Pteridium aquilinum, namely Pteridium aquilinum subsp. aquilinum and Pteridium aquilinum subsp. pinetorum.","coverages":[{"scientificName":"Plantae","rank":{"verbatim":"kingdom","interpreted":"KINGDOM"}},{"scientificName":"Tracheophyta","rank":{"verbatim":"phylum","interpreted":"PHYLUM"}},{"scientificName":"Polypodiopsida","rank":{"verbatim":"class","interpreted":"CLASS"}},{"scientificName":"Polypodiales","rank":{"verbatim":"order","interpreted":"ORDER"}},{"scientificName":"Dennstaedtiaceae","rank":{"verbatim":"family","interpreted":"FAMILY"}},{"scientificName":"Pteridium","rank":{"verbatim":"genus","interpreted":"GENUS"}},{"scientificName":"Pteridium aquilinum","rank":{"verbatim":"species","interpreted":"SPECIES"}},{"scientificName":"Pteridium aquilinum subsp. aquilinum","rank":{"verbatim":"subspecies","interpreted":"SUBSPECIES"}},{"scientificName":"Pteridium aquilinum subsp. pinetorum","rank":{"verbatim":"subspecies","interpreted":"SUBSPECIES"}}]}],"geographicCoverages":[{"description":"The dataset covers the entire territory of Ukraine.","boundingBox":{"minLatitude":-90.0,"maxLatitude":90.0,"minLongitude":-180.0,"maxLongitude":-180.0,"globalCoverage":false}}],"temporalCoverages":[{"@type":"range","start":"1800-06-06T00:00:00.000+00:00","end":"2016-07-11T00:00:00.000+00:00"}],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["brake","herbarium","preserved specimens","biodiversity","museum","plants","Ukraine","flora","collection","Occurrence"]},{"thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml","keywords":["Specimen"]}],"project":{"title":"Documenting plant diversity of occupied territories within the Steppe Zone of Ukraine","identifier":"Documenting Ukraine","contacts":[{"type":"POINT_OF_CONTACT","primary":false,"userId":[],"firstName":"Mykyta","lastName":"Peregrym","position":[],"email":[],"phone":[],"homepage":[],"address":[]}],"awards":[],"relatedProjects":[]},"samplingDescription":{"studyExtent":"The dataset contains records of specimens collected throughout Ukraine from the early 19th century to the present day.","sampling":"We extracted information from herbarium labels. Most records contain modified taxon names if they have corresponding names in the GBIF core taxonomy or other nomenclature lists available in GBIF. The dataset contains original locality descriptions and modified descriptions in English. We determined the geographical coordinates of each record based on the locality description. We used open sources (Google Maps, Google Earth, OpenStreet Map, old map images, etc.) to find the approximate locality where the specimens were collected.","qualityControl":"Data quality control was ensured by tools that correct various types of errors. We corrected mechanical errors in OpenRefine and taxonomic errors integrated into the GBIF species mapping tool.","methodSteps":["Creating the spreadsheet in GoogleSheets. It is a useful method to make the row database in different places, on different devices, at any time.","To determine what kind of fields and how to give names to them correctly, we used information from the GBIF's webpage 'Data quality requirements: Occurrence datasets' (https://www.gbif.org/uk/data-quality-requirements-occurrences) and Darwin Core Quick Reference Guide (https://dwc.tdwg.org/terms/#resourcerelationship).","Based on information from herbarium labels, we filled the fields for each herbarium specimen.","Each specimen was scanned and images were downloaded to cloud storage.","The links to images must be added to the field with a corresponding record.","Download the spreadsheet with the database in .csv format.","Upload the spreadsheet (.csv file) to OpenRefine for data cleaning.","Data cleaning includes some steps (e.g. delete excessive whitespaces at the beginning and the end of a word and between words). Conjunctive similar words into one correct value. Faceting the dates and coordinates.","Checking the correspondence of the nomenclature names with the GBIF Backbone Taxonomy (https://www.gbif.org/tools/species-lookup) and fixing the mistakes in the taxonomy."]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","acknowledgements":"The preparation of this dataset was partially supported by Documenting Ukraine, a program of the Institute for Human Sciences, IWM Vienna, within the framework of the grant “Documenting plant diversity of occupied territories within the Steppe Zone of Ukraine” awarded to Mykyta Peregrym.
","pubDate":"2026-03-31T00:00:00.000+00:00","maintenanceUpdateFrequency":"UNKNOWN","maintenanceDescription":"The dataset is planned to be updated with new records, but frequency of updates is unknown.","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":[],"modified":"2026-07-10T02:36:37.562+00:00"},"approximateCounts":{"occurrenceCount":396}}