Dmitriy I. Tirskiy, PhD, Senior Researcher, State Nature Reserve "Olekminsky"; 678100, Russian Federation, Sakha (Yakutia), Olekminsk, Filatov Street, Building 6; e-mail:

Reference to article

Tirskiy D.I. 2016. The spring migration of waterfowl in the Reserve Olekminsky. Nature Conservation Research 1(2): 79–89.

Section Resarch articles

The species composition of waterfowl that pass through Olekminsky Reserve is represented by 24 species; 9 of them are transient birds. Other species are presented as transient as well as nesting. Widespread species are bean goose, whooper swan, mallard, pintail, teal and tufted duck. The uneven distribution of wetlands and their limited variety determine the presence of only two places where there is a pronounced transition and regular stops of migrants. These are the lake-wetland complexes in the Olekma river valley and, to a lesser degree, the head of the Tuolba river. The total number of waterfowl transiting through the territory of the reserve during seasonal migrations has been estimated at 10000–20000 individuals. However, the wetlands nature reserve attracts, as a place of rest and foraging, an average of only 5% of the migrants. Dynamics and time of bird transition were almost the same as in the area of the Lena-Amga interfluve and relevant sections of the river valley Lena. Some differences can be traced in abundance of some species. The span whooper swan, e.g., accounted for up to 4.5–5.5 thousands individuals per season.
Long-term dynamics of the migratory population of several species of geese, swans and ducks have opposite tendencies (the apparent rise, cyclical fluctuations, the decline). However, the total number of waterfowl migrating through the territory of reserve «Olekminsky» tends to decrease, which can be concluded at the observation data of the spring migration.


Anseriformes, environmental performance, migration, Olekminsky Reserve, population, water birds.

Artice information

Submitted at 28.01.2016

The full text of the article

Degtyarev A.G., Larionov G.P., Germogenov N.I. 1978. Migration of waterfowl in the area of the mouth of the Nama. In: Wetland bird species in Central Valley Lena. Yakutsk. P. 29–48. [In Russian]
Degtyarev V.G. 1985. Anthropogenic effects on birds Leno-Aldan interfluve. In: Protection of Central Yakutia nature. Yakutsk: Nuclear Physics SB RAS. P. 77–83. [In Russian]
Degtyarev V.G. 2007. Wetland birds in a krioarid plains. Novosibirsk: Nauka. 300 p. [In Russian]
Degtyarev V.G., Larionov G.P. 1991. Spring migration of water birds in the north-western part of the Lena-Amga interfluves. In: Fauna and ecology of animals of Yakutia. Yakutsk. P. 56–62. [In Russian]
Isakov J.A. 1963. Accounting and forecasting the number of waterfowl. In: Organization and methods of censusing birds and harmful rodents. Moscow. P. 36-83. [In Russian]
Kumari E. 1979. The methodology of studying the visible migrations of birds. Tartu. 60 p. [In Russian]
Kuzyakin V.A. 1965. The methodology for waterfowl. In: Geography resources of the waterfowl of the birds of the USSR. Part 1. Moscow. P. 53–55. [In Russian]
Larionov A.G., Degtyarev V.G. 2000. Anthropogenic impact on avifauna agricultural landscapes of Central Yakutia. In: Problems of northern farming: breeding, feed production, ecology. Novosibirsk. P. 247–253. [In Russian]
Larionov G.P., Degtyarev V.G., Larionov A.G. 1991. The Birds of the Lena-Amga interfluves. Novosibirsk: Science, Siberian branch. 188 p. [In Russian]
Priklonsky S.G., Panchenko V.G. 1973. Accounting for waterfowl. Proceedings of the Oka State Reserve 9: 236–252. [In Russian]
Red Book of the Republic of Sakha (Yakutia). T. 2: Rare and endangered species of animals (insects, fishes, amphibians, reptiles, birds, mammals). Yakutsk: SUE Nipkow «Sahapoligrafizdat», 2003. 208 р. [In Russian]
Tirskiy D.I. 2001. Ornithofauna of the natural complex of Olekminsky State Nature Reserve. In: Flora and fauna of the specially protected natural territories of Republican system Ytyk Kere Sirder. Yakutsk: Kuduk. P. 15–31. [In Russian]
Tirskiy D.I. 2003. Rare and poorly studied birds of Olekminsky Reserve. In: Modern problems of ornithology of Siberia and Central Asia: Materials of the II International ornithological conference. Vol. 1. Ulan-Ude. P. 131–135. [In Russian]
Tirskiy D.I. 2009. The migration of some species of waterbirds in Olekminsky Reserve. In: Materials of the 24 International Congress of Biologists-Hunting Experts (August 17–22, 2009). Moscow. P. 339. [In Russian]