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Post-breeding wader stopovers on the central part of western coast of Kamchatka, Russiaстатья
Дата последнего поиска статьи во внешних источниках: 9 марта 2017 г.
- Авторы: Dmitry Dorofeev, Fedor Kazansky
- Журнал: Wader Study Group Bulletin
- Том: 121
- Номер: 2
- Год издания: 2014
- Первая страница: 149
- Последняя страница: 149
- Аннотация: The data were collected in 2010–2012 in the estuaries of three rivers: the Belogolovaya-Khairusovo estuary (57°N, 156.7°E) and Moroshechnaya estuary (56,4N, 156,1E). The first two rivers form one estuary, the Moroshechnaya river estuary is about 45 km to south. Counts of waders were conducted in the course of the Russian White Whale Program expedition of the Institute of Ecology and Evolution of the Russian Academy of Sciences. All counts were made from the end of July until the end of September and only mud- and sandflats were counted. In the Belogolovaya-Khairusovo estuary, we registered 20 wader species. The most numerous were Great Knot (15,000, maximum numbers), Red-necked Stint (5,000), Dunlin (5,000), Black-tailed Godwit (3,500), Bar-tailed Godwit (2,000) and Lesser Sandplover (2,000). In 2012, we also found 35 individually marked Great Knots and several Black-tailed Godwits, most of them from Broome, Northwestern Australia. In Moroshechnaya estuary we registered 21 wader species. The most numerous there were Whimbrel (5,000), Great Knot (2,000), Red-necked Stint (1,500), Black-tailed Godwit (2,000), Bar-tailed Godwit (1,000) Dunlin (800), Eurasian Oystercatcher (600) and Lesser Sandplover (500). The number of Whimbrels should be seen as a minimum numbers, because this species prefer tundra-like biotops for foraging and resting rather than estuaries. Most of observed wader species use the East Asian- Australasian Flyway and are long-distant migrants. Post-breeding staging sites are very important for fueling for southward migration. Our data show that these three estuaries are such sites. Further to the south no such large wader concentrations were found and we propose that these estuaries are important fueling sites, especially for Great Knots and godwits ssp., from which waders start their journey to the south.
- Добавил в систему: Дорофеев Дмитрий Сергеевич