Current status of the world population of the Great bustard (Otis tarda tarda) (Otididae, Aves) within its range
https://doi.org/10.35885/1684-7318-2025-2-165-182
Abstract
The paper reviews the current distribution, status, and abundance of the nominate subspecies of Great bustard (Otis tarda tarda L.) within its global range. A distribution map of the Great bustard is provided based on a review of literature data on the abundance and trends in different parts of the range for the period from 2010 to 2025. According to available data, the total population size is estimated at 29,600 to 33,000 birds. Possible causes for the decline in the Great bustard numbers in different countries are discussed. The status of this species in the Russian Federation is described, with an emphasis on the Saratov and Volgograd regions, where it occurs during its nesting season. A distribution map of the European subspecies of bustards in the Russian Federation is provided. The regions of the Russian Federation are described where this species is currently found, its habitats used during the breeding season, and the routes of its migration to and from its wintering grounds. The total population of bustards in the Russian Federation is estimate as 2500 individuals, but this number is approximate since it is based on different counting methods, including both detailed and comprehensive surveys of entire territories and expert assessments. The main threats to bustard populations in the Russian Federation are the intensification of agricultural production through the use of chemicals, the development of fallow fields and virgin lands to cultivate more oilseeds and winter grain crops, collisions with overhead power lines, and illegal hunting. A significant negative role during the bustard nesting period is played by the high number of predatory mammals and birds of prey, such as the white-tailed eagle.
About the Authors
A. M. Oparina
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
29 Polytechnicheskaya St., Saint Petersburg 195251
O. S. Oparina
Saratov Branch of A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
Russian Federation
Russian Federation
24 Rabochaya St., Saratov 410028
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Oparina A.M., Oparina O.S. Current status of the world population of the Great bustard (Otis tarda tarda) (Otididae, Aves) within its range. Povolzhskiy Journal of Ecology. 2025;(2):165-182. (In Russ.) https://doi.org/10.35885/1684-7318-2025-2-165-182
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