Long‐term observation of waterfowl migration in the south‐east of the forest zone of Western Siberia, Russia

• Main Authors: I. G. Korobitsyn, O. Yu. Tyutenkov, A. S. Panin, E. B. Murzakhanov, A. V. Bazdyrev, И. Г. Коробицын, О. Ю. Тютеньков, А. С. Панин, Е. Б. Мурзаханов, А. В. Баздырев
• Other Authors: The research was performed within the framework of a state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. FSWM‐2020‐0019)., Исследование поддержано государственным заданием Министерства науки и высшего образования Российской Федерации (проект № FSWM‐2020‐0019).
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: State Institute of Applied Ecology of the Republic of Dagestan 2024
• Subjects: Западная Сибирь; waterfowl; population counts; long‐term dynamics; Western Siberia; водоплавающие; учеты численности; многолетняя динамика; Anas acuta; Cygnus cygnus; ob river; Siberia
• Online Access: https://ecodag.elpub.ru/ugro/article/view/3147; https://doi.org/10.18470/1992-1098-2024-2-3

The aim of this research is an analysis of the long‐term dynamics of the composition and number of migratory waterfowl in the southeast of the forest zone of Western Siberia.Visual observations of waterfowl migration were carried out in the format of daily 2‐hour morning counts in April‐May through a period 18 years (1998–2023) near the Tomsk on the Tom river. Additionally, in 2002–2003, simultaneous migration was also observed on the Ob river in the southern, central and northern parts of the Tomsk region. The method of E.I. Gavrilova and E.V. Kumari was used with some modifications. Birds were counted which were transit flying via the territory, as well as birds sitting on the lake water in the area of the observation point.Twenty‐one species of waterfowl have been registered. Analysis of long‐term dynamics has revealed a trend towards a decrease in the total number of migrating waterfowl. In the most abundant species, Anas acuta, this trend is statistically significant. In some species – Anas strepera and Cygnus Cygnus – the trend of dynamics is positive.Most likely reason for the decline in waterfowl numbers is excessive spring hunting. A reduced hunting duration or the introduction of a moratorium every few years may be among the responses required. We suggest using the period of mass migration to monitor the waterfowl resource. This period is shorter and when the greatest number of birds migrate. Цель – провести анализ многолетней динамики состава и численности мигрирующих водоплавающих на юго‐востоке лесной зоны Западной Сибири.Визуальные наблюдения за пролетом водоплавающих проводили в формате ежедневных 2‐часовых утренних учетов в апреле‐мае в течение 18 лет (1998–2023) в окрестности г. Томска на р. Томи. Дополнительно в 2002–2003 году одновременно миграцию наблюдали также на р. Оби в южной, центральной и северной части Томской области. Использовали методику Э.И. Гаврилова, Э.В. Кумари с некоторыми изменениями. Учитывали пролетающих транзитом птиц, а также сидящих на учетной площадке озер в районе ...