Corresponding author: Stepan Senator (
Academic editor: Ivan Chadin
The dataset presented in the current study contains information regarding alien vascular plant species found in the Middle Volga Region (South-East of the European part of Russia). The dataset overall includes 413 species belonging to 247 genera and 67 families. The described dataset is based on the data published during floristic studies from 1851 to 2019. The dataset does not include alien vascular plant species that have presently disappeared from the territory of the region. It contains a total of 7,782 records of occurrences, extracted from the
A total of 7,782 records were published on the occurrence of alien vascular plants in the Middle Volga Region. Each entry includes information regarding the place of occurrence of the alien plant species, the year of occurrence, the person who recorded the alien plant and who identified it, status of the species (introduced or invasive), link to the herbarium, which contains the specimen and the literary source. If it were impossible to establish the names of the persons who collected the samples and (or) their identification in the identifiedBy and recordedBy fields, the names of the authors of the publication given in the associatedReferences field were entered. The presented dataset supplements the information on the distribution of alien plant species in the whole European part of Russia and specifies the places of their findings in the Middle Volga Region.
Currently, the invasion of alien plant species constitutes a large-scale phenomenon that poses a threat to the natural diversity and is regarded as one of the most serious environmental problems that mankind faces today (
The main purpose of this study is the presentation of a published dataset on the distribution and the composition of alien plant species of the Middle Volga Region (South-East of the European part of Russia) in the GBIF as a Darwin Core Archive. In addition, the study aims to provide accurate information on the global distribution of alien plant species, based on the records of their growth outside of their native ranges and enables the creation of large-scale plant invasion models.
№ 17-117112040040-3 «Assessment of modern biodiversity and forecast of its change for the ecosystems of the Volga River Basin in the conditions of their natural and anthropogenic transformation»
№ 18-118021490111-5 «Biological diversity of natural and cultural flora: fundamental and applied research and conservation issues»
Stepan Senator, Alyona Tretyakova, Dmitry Vorontsov
The Middle Volga Region is located in the South-East of the European part of Russia. From the aspect of Regional Administration, it is considered as Samara and Ulyanovsk Oblasts of the Russian Federation (Fig.
The first step of the study was to create a checklist of alien plant species found in the Middle Volga Region (
The dataset is based on Samara and Ulyanovsk Oblasts’ published data on the flora, which are confirmed through stored samples in Herbaria of the Lomonosov Moscow State University (MW), V.L. Komarov Botanical Institute of the Russian Academy of Sciences (LE), Institute of Ecology of the Volga River Basin of the Russian Academy of Sciences (PVB), Ulyanovsk State Pedagogical University named after I.N. Ulyanov (UPSU), Mordovian State University (GMU), Samara State University (SMR) and Moscow Pedagogical State University (MOSP). Additional field research materials, conducted by specialists from the Institute of Ecology of the Volga River Basin of the Russian Academy of Sciences, were taken into account. The listed data are stored in the
The earliest data included, regarding the growth of alien plant species in the territory of the indicated region, dates from 1851 to 2019 as the most recent.
This work was supported by the Competitiveness of the Ural Federal University (Russian Federation Government Regulation no. 211, contract no. 02. A03.21.0006).
The presented dataset is based on the published synopsis of alien plants species of the Middle Volga Region (
In 2017, the
There are 1472 occurrences in the dataset with coordinate uncertainty of 100 km. This is due to the fact that, in the literary sources of the late 19th and early 20th centuries, there is no exact geolocation. Instead, it is specified, for example, "Western part of Buguruslansky Uyezd" or "neighbourhood of Sergievsk". This collection could be made within a radius of 100 km or more from a settlement. At the same time, such data are of interest from the point of view of identifying the dynamics of the appearance of alien species in the study area.
During the development process of the dataset, the records obtained from primary sources were examined by the first author, as some names of the species did not correspond to the modern nomenclature. The herbarium samples were collected and identified by scientists from the Institute of Ecology of the Volga River Basin of the Russian Academy of Sciences and are stored in the PVB herbarium. The accuracy of the determination of some samples was confirmed by taxonomists from the Lomonosov Moscow State University (MW) and V.L. Komarov Botanical Institute of the Russian Academy of Sciences (LE). For the purposes of publishing the dataset in the GBIF network, the records have been adjusted to match the Darwin Core specifications (
1. The initial data for this standardised dataset are the information stored in the
2. The
3. The scientific names of plants were adjusted in accordance with the GBIF Taxonomic Backbone.
The dataset fields’ names were chosen according to Darwin Core (Wieczorek et al., 2012) and include the following: "scientificName", "taxonRank", "kingdom", "phylum", "class", "family", "genus", "specificEpithet", "infraspecificEpithet", "stateProvince", "municipality", "locality", "decimalLatitude", "decimalLongitude", "coordinateUncertaintyInMetres", "georeferencedBy", "establishmentMeans", "year", "recordedBy", "identifiedBy", "сollectionCode", "geodeticDatum", "basisOfRecord", "countryCode", "country", "occurrenceID", "institutionCode", "language", "associatedReferences".
The Middle Volga Region is a region located in the South-East of the European part of Russia. In botanical-geographical terms, it is located on the border of the European broad-leaved forest area and the Eurasian steppe area. The area of the region is 99,000 km2; the population density is 48.6 per km2. From the aspect of Regional Administration, it is considered as Samara and Ulyanovsk Oblasts of the Russian Federation. The coordinates of the northernmost points are 54.887903 N, 49.289177 E, the southernmost points are 51.774088 N, 50.766883 E, the Western points are 53.988244 N, 45.797979 E and the Eastern points are 54.340690 N, 52.566412 E.
The climatic conditions of the Middle Volga Region are formed under the influence of the drifting western Atlantic Ocean air masses and the Siberian anticyclone macrocirculations. The climate is temperate-continental, with peculiar seasonal circulation, characterised by sharp temperature contrasts between cold and warm seasons, a rapid transition from cold winter to hot summer, moisture deficiency, high evaporation rate and abundance of sunlight. The continentality of the climate increases from west to east. The average January temperature is -11 – -13.5°С, in July – +19°С – +21.0°С. The frost-free period lasts 118–157 days. On the territory of the Region, there is a zonal decrease in annual precipitation from north to south from 540 to 370 mm. The largest part of the area of study is located in the forest-steppe zone, characterised by the presence of typical chernozem soil, an alternation of broad-leaved forests and a rich variety of steppe grasslands. The extreme south point of the territory is occupied by a steppe zone with forb-fescue-feather grass steppes on ordinary and southern chernozem soils.
The largest number of the records was made in the Ulyanovsk Oblast (4052 records or 52%), the smallest in the Samara Oblast (3730 records or 48%).
51.774 and 54.888 Latitude; 45.798 and 52.566 Longitude.
The dataset includes records of expansion on alien plant species in two groups (
The
A total of 18 families contain a small number of records (less than 10). In this case, the families
The obtained data provided the proper grounds for identifying the most common alien plant species in the Middle Volga Region. Amongst them are
1851 – 2019
The presented dataset contains information on the occurrences of alien plants since 1851, with the most recent findings recorded in 2019. Fig.
Other
This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 Licence.
Alien plant species of the Middle Volga Region (South-East of the European part of Russia)
1
Alien plant species of the Middle Volga Region (South-East of the European part of Russia)
Darwin Core
1.6
The presented dataset (
Column label | Column description |
---|---|
scientificName | The full scientific name. |
taxonRank | The taxonomic rank of the most specific name in the scientificName. |
kingdom | The full scientific name of the kingdom in which the taxon is classified. |
phylum | The full scientific name of the phylum or division in which the taxon is classified. |
class | The full scientific name of the class in which the taxon is classified. |
family | The full scientific name of the family in which the taxon is classified. |
genus | The full scientific name of the genus in which the taxon is classified. |
specificEpithet | The name of the first or species epithet of the scientificName. |
infraspecificEpithet | The name of the lowest or terminal infraspecific epithet of the scientificName, excluding any rank designation. |
stateProvince | The name of the next smaller administrative region than country. |
municipality | The full, unabbreviated name of the next smaller administrative region than county. |
locality | The specific description of the place. Less specific geographic information can be provided in other geographic terms (higherGeography, continent, country, stateProvince, county, municipality, waterBody, island, islandGroup). This term may contain information modified from the original to correct perceived errors or standardise the description. |
decimalLatitude | The geographic latitude (in decimal degrees, using the spatial reference system given in geodeticDatum) of the geographic centre of a Location. |
decimalLongitude | The geographic longitude (in decimal degrees, using the spatial reference system given in geodeticDatum) of the geographic centre of a Location. |
coordinateUncertaintyInMetres | The horizontal distance (in metres) from the given decimalLatitude and decimalLongitude describing the smallest circle containing the whole of the Location. Leave the value empty if the uncertainty is unknown, cannot be estimated or is not applicable (because there are no coordinates). Zero is not a valid value for this term. |
georeferencedBy | A list (concatenated and separated) of names of people, groups or organisations who determined the georeference (spatial representation) for the Location. |
establishmentMeans | The process by which the biological individual(s) represented in the Occurrence became established at the location. |
year | The four-digit year in which the Event occurred, according to the Common Era Calendar. |
recordedBy | A list (concatenated and separated) of names of people, groups or organisations responsible for recording the original Occurrence. |
identifiedBy | A list (concatenated and separated) of names of people, groups or organisations who assigned the Taxon to the subject. |
сollectionCode | The name, acronym, coden or initialism identifying the collection or dataset from which the record was derived. |
geodeticDatum | The ellipsoid, geodetic datum or spatial reference system (SRS) upon which the geographic coordinates given in decimalLatitude and decimalLongitude are based. |
basisOfRecord | The specific nature of the data record. Included value: HumanObservation. |
countryCode | The standard code for the country in which the Location occurs. Included value: RU |
country | The name of the country or major administrative unit in which the Location occurs. Included value: Russia |
occurrenceID | An identifier for the Occurrence (as opposed to a particular digital record of the occurrence). In the absence of a persistent global unique identifier, construct one from a combination of identifiers in the record that will most closely make the occurrenceID globally unique. |
institutionCode | The name (or acronym) in use by the institution having custody of the object(s) or information referred to in the record. |
language | A language of the resource. Included value: ru. |
associatedReferences | A list (concatenated and separated) of identifiers (publication, bibliographic reference, global unique identifier, URI) of literature associated with the Occurrence. |
Stepan Senator – alien plants sample collection, species identification, data preparation, manuscript editing
Alyona Tretyakova – data preparation, manuscript editing
Dmitry Vorontsov – data preparation, georeferencing, manuscript editing
Alien plant species occurrences points (black dots) and coordinate uncertainty zones (red semi-transparent circles) in the study of the Middle Volga Region.
The species with the largest number of occurrences (species with more than 900 records are shown).
Number of records through different years of observation.
Number of records made by authors. Only authors with more than 100 records are shown.
|
|
Saksonov S.V. | 4192 |
Rakov N.S. | 4142 |
Senator S.A. | 3689 |
Vasjukov V.M. | 1876 |
Ivanova A.V. | 1635 |
Dronin G.V. | 758 |
Kornilov S.P. | 718 |
Novikova L.A. | 686 |
Goljusheva A.N. | 558 |
Lashmanova N.N. | 459 |
Sytin A.K. | 389 |
Savenko O.V. | 376 |
Plaksina T.I. | 316 |
Silaeva T.B. | 280 |
Istomina E.Yu. | 261 |
Bobkina E.M. | 244 |
Nikitin N.A. | 227 |
Koneva N.V. | 177 |
Ilina V.N. | 158 |
Solovyova V.V. | 153 |
Taxonomic distribution of alien plant species and species entries amongst families in the dataset. Families are listed in order of decreasing total number of entries.
|
|
% |
||
|
|
|
||
|
34 | 59 | 1660 | 21.3 |
|
24 | 40 | 592 | 7.6 |
|
18 | 34 | 938 | 12.1 |
|
15 | 32 | 431 | 5.5 |
|
14 | 23 | 305 | 3.9 |
|
11 | 20 | 488 | 6.3 |
|
7 | 13 | 319 | 4.1 |
|
8 | 12 | 172 | 2.2 |
|
6 | 11 | 195 | 2.5 |
|
11 | 11 | 127 | 1.6 |
|
7 | 9 | 205 | 2.6 |
|
5 | 8 | 116 | 1.5 |
|
2 | 8 | 28 | 0.4 |
|
6 | 7 | 133 | 1.7 |
|
2 | 7 | 50 | 0.6 |
|
4 | 6 | 89 | 1.1 |
|
3 | 6 | 51 | 0.7 |
|
3 | 6 | 50 | 0.6 |
|
2 | 5 | 139 | 1.8 |
|
3 | 5 | 109 | 1.4 |
|
2 | 5 | 108 | 1.4 |
|
2 | 4 | 149 | 1.9 |
|
2 | 4 | 109 | 1.4 |
|
2 | 4 | 84 | 1.1 |
|
2 | 4 | 69 | 0.9 |
|
2 | 4 | 65 | 0.8 |
|
3 | 4 | 47 | 0.6 |
|
1 | 3 | 83 | 1.1 |
|
1 | 3 | 79 | 1.1 |
|
3 | 3 | 75 | 0.9 |
|
1 | 3 | 40 | 0.5 |
|
2 | 3 | 13 | 0.2 |
|
2 | 3 | 8 | 0.1 |
|
1 | 2 | 115 | 1.5 |
|
2 | 2 | 96 | 1.2 |
|
1 | 2 | 37 | 0.5 |
|
1 | 2 | 27 | 0.4 |
|
1 | 2 | 23 | 0.3 |
|
1 | 2 | 21 | 0.3 |
|
1 | 2 | 18 | 0.2 |
|
2 | 2 | 12 | 0.2 |
|
2 | 2 | 5 | 0.1 |
|
2 | 2 | 3 | 0.1 |
|
1 | 1 | 73 | 0.9 |
|
1 | 1 | 42 | 0.5 |
|
1 | 1 | 32 | 0.4 |
|
1 | 1 | 21 | 0.3 |
|
1 | 1 | 19 | 0.2 |
|
1 | 1 | 15 | 0.2 |
|
1 | 1 | 14 | 0.2 |
|
1 | 1 | 13 | 0.2 |
|
1 | 1 | 13 | 0.2 |
|
1 | 1 | 10 | 0.1 |
|
1 | 1 | 8 | 0.1 |
|
1 | 1 | 6 | < 0.1 |
|
1 | 1 | 6 | < 0.1 |
|
1 | 1 | 6 | < 0.1 |
|
1 | 1 | 4 | < 0.1 |
|
1 | 1 | 3 | < 0.1 |
|
1 | 1 | 3 | < 0.1 |
|
1 | 1 | 3 | < 0.1 |
|
1 | 1 | 2 | < 0.1 |
|
1 | 1 | 2 | < 0.1 |
|
1 | 1 | 1 | < 0.1 |
|
1 | 1 | 1 | < 0.1 |
|
1 | 1 | 1 | < 0.1 |
|
1 | 1 | 1 | < 0.1 |
67 | 248 | 413 | 7782 | 100 |