Realm: Terrestrial
Climate: Temperate
Biome: Large river ecosystems
Central latitude: 66.380246
Central longitude: 71.778749
Duration: 3 years, from 1976 to 1978

33 records

11 distinct species

Across the time series Anas acuta is the most frequently occurring species

Methods

The area of ??work, material and technique Near the mouth of the Irkut has an open swampy floodplain, is highly productive and represents a "splinter" of tertiary relict steppes of the Mongolian type, greatly transformed human activity Century (Peshkov 1972). The main complex floodplain vegetation here can distinguish waterlogged melkokochkovatye -zlakovye forb meadows, melkokochkovatye dry meadows, eutrophic lakes and the old gravel pits at different stages of overgrowth. The main type of coastal vegetation - macrophytes association with the dominance of broadleaf cattail Typha latifolia, by forming depressions and shallow waters mezhoz?rnym solid lining. In addition, there are Typha angustifolia and T. angustifolia Laxman T. laxmannii. Reed Phragmites australis grows separate clumps up to several tens of square meters in the shallow coastal waters and careers. Floodplain terraces are occupied by steppe vegetation. Dense floodplain willow (ur?ma) are located along the river and depressions extending from radially (zamytye overgrown and ducts). On the meadows there are only a few willow bushes. For plant associations characteristic of Moza, I confirm the identity to warrant a variety of habitats (Melnikov, 1995; Melnikov et al 1988, 1997a;. Lyakhov et al 1996;. Ryabtsev, Fefelov 1997). Near the mouth of the Irkut - one of the most developed in the Baikal region, located within a large industrial center, the city of Irkutsk. The lower portion of the flood plain crossed by several railway, highways and dirt roads and numerous trails. On steep slopes and high iron and highways were formed complexes ruderal vegetation. Along the trails, and the lower portions of slopes among the vegetation is dominated by a crescent lucerne Medicago falcata, white sweet clover Melilotus albus and notched M. dentatus. The same type of vegetation characteristic of the excavation dumps along the pits, but is dominated by blue-gray Mari Chenopodium glaucum and white Ch. album. High and dense thickets provide a protective environment for nesting birds, especially waterfowl. Bund rail and highways understand smashed into several relatively isolated areas. Career filled with water and a thicket of broad-leaved cattails, reeds, and in places with reeds Scirpus lacustris. Sharply limit the flow of water, causing waterlogging depressions, and the formation of large overgrown with cattails pl?sov. Transient complete flooding of the floodplain is extremely rare, only in years with snowfalls in winters and happy spring, and in wet years with a sharp rise of water in Irkut. During the period of our work was a gradual draining of the floodplain and the formation of a more xerophilous, ostepn?nnyh meadows. Unit of abundance = IndCountDec, Unit of biomass = NA

Citation(s)

Krivenko, V. G. (1991) Waterfowl and their protection. Moscow, Agropromizdat Publishers, 271 p.