{"key":"2c56165e-5583-48fa-88fe-c6218a2f787d","installationKey":"d0e2b9a9-8496-4959-8cba-a7fea22537eb","publishingOrganizationKey":"c8ac507d-0869-4792-9c3a-6f2e60c2b1de","doi":"10.15468/mwfryh","external":false,"numConstituents":0,"type":"OCCURRENCE","subtype":"OBSERVATION","shortName":"plants_khortytsia_2025","title":"Plant survey data from Khortytsia Island (Ukraine), 2025","description":"\n            This dataset contains georeferenced records of vascular plants collected on\nKhortytsia Island (Dnipro River, Zaporizhzhia Region, Ukraine) in 2025. The\ndata come from plot-based vegetation surveys aimed at documenting the response\nof floodplain and coastal plant communities to the altered hydrological regime\nafter the destruction of the Kakhovka Reservoir in June 2023.Sampling was carried out in floodplain lakes and along the\nexposed outer shoreline of the island in areas that experienced the strongest\nchanges in water level. At each sampling plot all vascular plant species were\nrecorded and their cover or abundance was estimated using standard\nphytosociological (Braun–Blanquet) methods. Each record in the dataset\ncorresponds to the occurrence of a plant species in a particular plot, with\nassociated information on date, locality, coordinates (WGS84) and basic habitat\ncharacteristics. The dataset is intended to provide a baseline for analysing\nvegetation dynamics, hemeroby and naturalness gradients, and for supporting\nfuture monitoring and restoration planning in the Lower Dnipro floodplain\necosystems. Methodological details and the broader environmental context of the\nstudy area are described in Lisovets et al. (2025) “Hemeroby reveals the\ndynamics of vegetation cover following the destruction of the Kakhovka\nReservoir”, PeerJ 13:e19607.\n        ","language":"eng","citation":{"text":"Lisovets O, Tutova H, Kunakh O, Zhukov O (2025). Plant survey data from Khortytsia Island (Ukraine), 2025. Bohdan Khmelnytsky Melitopol State Pedagogical University. Occurrence dataset https://doi.org/10.15468/mwfryh accessed via GBIF.org on 2026-10-12.","citationProvidedBySource":false},"contactsCitation":[{"key":6408925,"abbreviatedName":"Lisovets O","firstName":"Olena","lastName":"Lisovets","roles":["ORIGINATOR"],"userId":[]},{"key":6408926,"abbreviatedName":"Tutova H","firstName":"Hanna","lastName":"Tutova","roles":["ORIGINATOR"],"userId":[]},{"key":6408927,"abbreviatedName":"Kunakh O","firstName":"Olga","lastName":"Kunakh","roles":["ORIGINATOR"],"userId":[]},{"key":6408928,"abbreviatedName":"Zhukov 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plants","rank":{"verbatim":"phylum","interpreted":"PHYLUM"}}]}],"geographicCoverages":[{"description":"This dataset contains occurrence records of vascular plants collected in 2025 on Khortytsia Island (Dnipro River, Zaporizhzhia Region, Ukraine). The sampling focuses on floodplain habitats in the southern part of the island, including floodplain lakes, channels and newly exposed sandy river banks formed after the drawdown of the Kakhovka Reservoir following the dam breach in June 2023. The aim is to document vegetation changes under altered hydrological conditions and to characterise gradients of disturbance, hemeroby and naturalness in these floodplain ecosystems. For each record the dataset provides the taxon name, sampling date, geographic coordinates and basic habitat information, allowing reuse in studies of post-disturbance succession, biodiversity assessment and conservation planning for the Lower Dnipro floodplain.","boundingBox":{"minLatitude":47.793,"maxLatitude":47.857,"minLongitude":35.069,"maxLongitude":35.152,"globalCoverage":false}}],"temporalCoverages":[{"@type":"range","start":"2025-06-01T00:00:00.000+00:00","end":"2025-08-15T00:00:00.000+00:00"}],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["Occurrence\nVascular plants\nTracheophyta\nFlora\nVegetation\nPhytosociology\nFloodplain\nKhortytsia Island\nDnipro River\nUkraine\n2025"]},{"thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml","keywords":["Occurrence\nVascular plants\nTracheophyta\nFlora\nVegetation\nPhytosociology\nFloodplain\nKhortytsia Island\nDnipro River\nUkraine\n2025"]}],"project":{"title":"Vegetation dynamics of Khortytsia Island after the destruction of the Kakhovka Reservoir","contacts":[{"type":"AUTHOR","primary":false,"userId":["https://orcid.org/0000-0002-2503-3648"],"firstName":"Olena","lastName":"Lisovets","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":["https://orcid.org/0000-0003-0961-7608"],"firstName":"Hanna","lastName":"Tutova","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":["https://orcid.org/0000-0002-3631-8884"],"firstName":"Olga","lastName":"Kunakh","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0003-3661-3012"],"firstName":"Olexander","lastName":"Zhukov","position":[],"email":[],"phone":[],"homepage":[],"address":[]}],"awards":[],"relatedProjects":[]},"samplingDescription":{"studyExtent":"The study was conducted in the southern floodplain part of Khortytsia Island (Dnipro River, Zaporizhzhia Region, Ukraine). Sampling covered floodplain lakes inside the island and the external shoreline of the Dnipro River, which experienced a strong drop in water level after the destruction of the Kakhovka Dam. The total surveyed area was approximately 0.53 ha, distributed across a mosaic of former aquatic, periodically inundated and newly exposed sandy habitats. The temporal extent of the dataset corresponds to the vegetation season of 2025 (post-dam period)","sampling":"Vegetation sampling followed the Braun–Blanquet phytosociological approach. Standard plots of 4 × 4 m were established within relatively homogeneous stands of vegetation, covering the full range of habitat conditions in the southern part of Khortytsia Island. In each plot, all vascular plant species were recorded and their cover was estimated using percentage cover values. Geographic coordinates of plots were obtained with a handheld GPS and later checked on high-resolution aerial imagery. In total, 135 relevés were collected and subsequently classified into plant community types using TWINSPAN and fidelity-based approaches. Nomenclature and syntaxonomic assignment follow the treatment used in Lisovets et al. (2025, PeerJ), where the methodological details and ecological interpretation of the data are described in full.","methodSteps":["Field sampling was carried out using standard 4 × 4 m vegetation plots placed in homogeneous patches of floodplain vegetation. All vascular plant species within each plot were recorded and their cover was estimated as percentage values. Geographic coordinates were taken with a handheld GPS device. After fieldwork, species names were checked against the GBIF Backbone Taxonomy. Plot coordinates were verified using high-resolution aerial imagery. Data were entered into a unified spreadsheet, cleaned for taxonomic inconsistencies, and transformed into a Darwin Core compliant structure. Occurrence records were exported as a DwC-A file for publication in the GBIF IPT."]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","pubDate":"2025-11-23T00:00:00.000+00:00","maintenanceUpdateFrequency":"UNKNOWN","maintenanceDescription":"","license":"http://creativecommons.org/publicdomain/zero/1.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":[],"modified":"2026-07-11T03:12:43.850+00:00"},"approximateCounts":{"occurrenceCount":5976}}