Earthworms of the Krasnokutsk territorial commune (hromada), Kharkiv region, Ukraine

Nataliia Brusentsova1, Olexander Zhukov2, Svitlana Kireeva3

1 Slobozhanskyi National Nature Park, st. Zarichna 15A, Krasnokutsk, Ukraine; 2 Bogdan Khmelnytskyi Melitopol State Pedagogical University, Hetmanska st., 20, 72318, Melitopol, Ukraine; 3 , Ukraine

Corresponding author(s): Nataliia Brusentsova (n_brusentsova@ukr.net)Olexander Zhukov (zhukov_dnipro@ukr.net)Svitlana Kireeva

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Brusentsova N, Zhukov O, Kireeva S (2023). Earthworms of the Krasnokutsk territorial commune (hromada), Kharkiv region, Ukraine. Version 1.0. Slobozhanskyi National Nature Park. Samplingevent dataset. https://ukraine.ipt.gbif.no/resource?r=earthworms_krasnokutsk_23&v=1.0

Abstract

The dataset includes records of earthworm species found on the territory of Krasnokutsk community. Krasnokutsk territorial commune (hromada) is located in the north-west of Kharkiv region. The natural complexes of the territory are represented by oak forests on the right banks and pine forests on the left banks of the rivers, floodplains, steppe beams, marshy alder trees. A significant part of the Krasnokutsk territorial commune consists of agricultural landscapes. The floodplains of the Merla and Merchyk rivers (the Dnipro river basin) were subjected to land reclamation in the 1970s, which radically changed the hydrological regime and affected on species of flora and fauna. In the pine forests there is the largest complex of forest peat bogs and lakes in the Kharkiv region.

Keywords: Samplingevent, Observation

Project details

Project title: BioDATA Ukraine data mobilization grant program 2022
Personnel: Nataliia Brusentsova, Kateryna Ivanova, Oleh Prylutskyi
Funding: BioDATA partners, NLBIF, GBIF Norway, and the UiO Natural History Museum
Study area descriptions/descriptor: Krasnokutsk territorial commune (hromada) is located in the north-west of Kharkiv region. The natural complexes of the territory are represented by oak forests on the right banks and pine forests on the left banks of the rivers, floodplains, steppe beams, marshy alder trees. A significant part of the Krasnokutsk territorial commune consists of agricultural landscapes. The floodplains of the Merla and Merchyk rivers (the Dnipro river basin) were subjected to land reclamation in the 1970s, which radically changed the hydrological regime and affected on species of flora and fauna. In the pine forests there is the largest complex of forest peat bogs and lakes in the Kharkiv region.
Design description: The data presented in the dataset were collected during field research on the territory of Slobozhanskyi National Nature Park. The project steps were as follows: estimate the amount of data to be processed and their condition; contact other scientists with the offer of cooperation and publication of data of their authorship; digitize the data of field diaries; collect data from all local computers; divide the data into occurrence and sampling-event; format the data in a table according to the category; edit data sent by other researchers and add them to the general database.

Data published through GBIF: https://ukraine.ipt.gbif.no/resource?r=earthworms_krasnokutsk_23

Taxonomic coverage

General taxonomic coverage description: N/A
Taxonomic ranks
Kingdom: Animalia
Phylum: Annelida
Class: Clitellata
Order: Crassiclitellata
Family: Lumbricidae 

Spatial coverage

General spatial coverage: The territory of Slobozhanskyi National Nature Park, Krasnokutsk territorial commune (hromada), Bohodukhiv district, Kharkiv region, Ukraine.
Coordinates: 50°3'14.4''N and 50°10'55.2''N Latitude; 35°4'4.8''E and 35°18'36''E Longitude 

Formation period: 2019-2021

Methods

Method step description: 
- . 	Field data collection: soil sampling on transects in flat elevated area, slope and bottom of the ravine; sorting earthworms and taking into a container with formalin
- . 	Laboratory research: determination of morphological features and species identification of earthworms
- . 	Database creation: reformatting thematic databases according to Darwin Core Archives standards
- . 	Georeferencing based on Google Satellite images
- . 	Data checking and cleaning in OpenRefine
Study extent description: Samples were taken in three landforms in the oak forest - flat elevated area, slope and bottom of the ravine
Sampling description: Soil samples were taken with a size of 25x25 cm and a depth of 30 cm. The soil was viewed on a polyethylene film and the found earthworms were taken into a container with formalin. Samples were taken in three landforms (flat elevated area, slope and bottom of the ravine) on a transect at a distance of 5 meters from each other. Identification of earthworms was carried out in laboratory conditions.

The database of field work results has been reformatted according to Darwin Core Archives standards. Exact sampling coordinates were not determined. We georeferenced them based on Google Satellite images (decimal latitude/decimal longitude as the centroid of the terrain point, followed by UncertaintyInMeters coordinates as the distance from the centroid to the farthest terrain point).

Datasets

Dataset description
Object name: Darwin Core Archive Earthworms of the Krasnokutsk territorial commune (hromada), Kharkiv region, Ukraine
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ukraine.ipt.gbif.no/archive.do?r=earthworms_krasnokutsk_23
Publication date of data: 2023-11-01
Language: English
Licences of use: Creative Commons Attribution (CC-BY 4.0) License

Metadata language: English
Date of metadata creation: 2023-10-17
Hierarchy level: Dataset

References
Brusentsova N.O., Kireeva S.Yu. The number of earthworms (Lumbricidae) in the mountain forest of the Slobozhansky NPP (Kharkiv region, Ukraine) // Materials of the second Kharkiv Zoological Lectures on Invertebrate Zoology, dedicated to the memory of Professor E. I. Lukin, November 3–4, 2021, m Kharkiv. — Kharkiv, 2021. — pp. 9–10.