Features of migration and nesting of waterfowl in the zone of influence of the Siberian Chemical Combine (SCC)

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Author: Gureev, S P
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: taiga
• Online Access: http://dx.doi.org/10.1088/1755-1315/400/1/012010; https://iopscience.iop.org/article/10.1088/1755-1315/400/1/012010/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/400/1/012010

Abstract The flyby of waterfowl ( Anseriformes ) in the south-taiga zone of the Tomsk Priobye is associated with the valleys of large rivers. In natural landscapes, the migration process is largely determined by the nature of spring and weather conditions of a particular year. However, there are many cases when birds in an anthropogenically-transformed habitat “receive certain advantages” in comparison with natural landscapes. The observations were carried out in 1995–2001 on the reservoirs of the Tom River floodplain and on the system of inter-river technogenic settling reservoirs (reservoirs-coolers of the Siberian NPP) in the sanitary protection zone of the SCC (SPZ) of the SCC and closed administrative-territorial unit («ZATO Seversk»). Changes in the timing and intensity of the spring flyby, nesting density and success of reproduction of ducks depending on various natural and anthropogenic factors are traced. The majority of the waterfowl spring flies in transit and does not often use the reservoirs of the Tom River floodplain for rest and feeding, but willingly lingers on the rich food warmer waters technogenic of the SPZ of the SCC. For the first time, significant differences were established in the species composition, abundance, biotopic distribution, and success of duck nesting in natural and man-made reservoirs: in years with early and late springs, in years with different water levels in reservoirs with regulated flow. For the first time, an assessment was made of the strict, “reserved” mode of functioning of the territory of the «ZATO Seversk», which determines the almost complete absence of disturbance factors on technogenic reservoirs during periods of flyby and nesting ducks.