Habitat Preferences of Diploid and Polyploids Spined Loaches (Сobitis elongatoides – taenia – tanaitica) in the River Systems of Western and Central Ukraine. Mezhzherin, S. V., Tsyba, A. A., Rostovska, O. V. –The analyzes the structure of diploid and polyploid populations within the spined loach group (Сobitis elongatoides – taenia – tanaitica) in the water systems of Western and Central Ukraine (Danube, Dniester, Southern Bug, Vistula, Middle and Upper Dnipro river basins). It reveals a bipolarity in settlement structure, characterized by a sharp prevalence of either diploids or polyploids, with no geographical trends in spatial distribution. Clonal hybrid polyploids, constituting 70% of the studied region's individuals, predominate in settlements along the main river channels, as well as in the middle and lower reaches of first and second-order tributaries. Populations where individuals of the parent species dominate are situated on the periphery: in accessory systems, tributaries of the third and higher orders, upper reaches of first and second-order tributaries, and lakes. This spatial segregation arises from historical circumstances rather than ecological preferences, primarily due to the distance from water corridors through which polyploids invaded in the 1960s-1970s. The displacement of diploid individuals of parent species by clonal hybrid polyploids is described as a universal phenomenon, linked to the advantages of parthenogenetic reproduction and higher survival rates of polyploids in modern ecological conditions.
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 108 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
The table below shows only published versions of the resource that are publicly accessible.
Researchers should respect the following rights statement:
The publisher and rights holder of this work is I. I. Schmalhausen Institute of Zoology. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 32e79b23-ced1-49e1-a579-90d97e675125. I. I. Schmalhausen Institute of Zoology publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Participant Node Managers Committee.
Western and Central Ukraine
|Bounding Coordinates||South West [-90, -180], North East [90, 180]|
Diploid and polyploid spined loaches (Cobitis elongatoides – taenia – tanaitica)