|Article name||THE SPRING MIGRATION OF WATERFOWL IN THE RESERVE OLEKMINSKY|
Dmitriy I. Tirskiy, PhD, Senior Researcher, State Nature Reserve "Olekminsky"; 678100, Russian Federation, Sakha (Yakutia), Olekminsk, Filatov Street, Building 6; e-mail: email@example.com.
|Reference to article||
Tirskiy D.I. 2016. The spring migration of waterfowl in the Reserve Olekminsky. Nature Conservation Research 1(2): 79–89. DOI: 10.24189/ncr.2016.018
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.
Anseriformes, environmental performance, migration, Olekminsky Reserve, population, water birds.
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