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Results of the long-term analysis of the Eurasian beaver (Castor fiber) and its settlements in the Pushta River basin and Moksha River floodplain lakes in the southeastern part of the Mordovia State Nature Reserve during the period of 1940–2013 are described. The numbers of beaver settlements and animals living there 73 years after they were reintroduced… (More)
The data on a finding of the topmouth gudgeon in an irrigation canal of the Kodori River in the Republic of Abkhazia in August of 2015 are presented.
Spirlins of the genus Alburnoides are widespread fishes, which taxonomy has been rapidly developing in recent years. Mitochondrial cytochrome c oxidase subunit I (COI) was used as DNA barcode marker to create a reference dataset of Caucasian Alburnoides and to test its barcoding efficiency. All four previously known Caucasian species of Alburnoides were… (More)