Structure of meadow and marsh communities waders of the valley of the Barguzin river

Badmayeva Evgeniya Nikolaevna, Pyzhikova Evgeniya Mikhaelovna

On the basis of the data collected in 2016-2018 in the valley of the Barguzin River (Northeast Baikal region) the ecological structure of waders on inundated meadows is revealed. The specific list of waders (Charadriidae, Scolopacidae) – 16 types and their specific specificity and insistence concerning fodder and nested mikrostation on meadows is revealed. On degree of selectivity of fodder station they are divided into the following groups: 3 views (18.7%) – evritopny, 8 types (50%) - polytopic, 5 types (31.2%) – oligotopny. There are no stepnotopny types. On specific richness of meadow and marsh station: on marshy meadows 16 types (100%), on the real meadows – 10 types (62.5%) and on ostepnenny meadows – 3 views (18.7%) are noted. The variability of specific list of waders on inundated meadows of the Barguzin Baikal region and their formations demonstrates plasticity of types and its survival in extreme conditions including during the droughty periods.

Keywords:sandpipers, meadow and marsh communities, Barguzin valley, ecology of birds.