The role of environmental factors in the re-breeding of waterfowl in the steppe zone Murodovich Turaev Mukhtor*, Ergashovich Kholliyev Askar** *PhD (Biology), Bukhara State University, Bukhara, Uzbekistan **DSC (Biology), Bukhara State University, Bukhara, Uzbekistan Online published on 16 November, 2019. Abstract The following article deals with ecological dis turbances in the Aral Sea, the rearrangement of the night herons’ direction (Nysticorax nycticorax nysticorax L) to the south-east of the country, new information is provided about their entry into the Khorezm and Bukhara regions, their biotopic to ecological factors. The Aral Sea and Aral Sea waters, which are considered the largest water basin of the Republic, and the archipelago, the archipelago, have for many years been chosen as the favorite habitat of representatives of the animal world, including water and underwater birds whose life is connected with water biotope. Rights the colonies of nests are formed in natural conditions, usually in the lakes and fish farms, reeds and Taiga, in the rivers of the ponds a little calm and comfortable to feed. Slots in thick reed ponds are placed in the stacks of Reed bushes (R. Sagitov and others. 1989, Ta'raev, 1995, 2008,). Since 1950, with the decrease in the water level of the sea water in the territory, the tendency of reduction in the number of the Nycticorax nycticorax was observed as a result of environmental changes in the Aral Sea and Aral Sea waters, especially in the Amudarya Delta and in the river banks, and at the same time representatives of this population began to observe the Sagitov, 1989, Shernazarov, 1994, Torraev, 1995, Torraev, 2008). It is also observed that in addition to creating colonies with some sinanthropic species on the territory of Nycticorax nycticorax Bukhara region, skills for anthropic activities (adaptation to strong interference in urban conditions, nutrition in artificial pools) are being strengthened. Top Keywords Anthropogenic, Biotope, Biocenosis, Population, Regional, Synanthropic, Nominal, Migrant, Typical. Top |