Landscape and Ecological Differentiation of the Fauna and Bird Population of Urup Island (Big Kuril Ridge

Romanov, A.A.; Koblik, E.A.; Red’kin, Y.A.; Kojemyakina, R.V.; Yakovlev, V.O.; Murashev, I.A.

Авторы: Romanov A.A., Koblik E.A., Red’kin Y.A., Kojemyakina R.V., Yakovlev V.O., Murashev I.A.
Журнал: Contemporary Problems of Ecology
Том: 14
Номер: 2
Год издания: 2021
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 99
Последняя страница: 111
DOI: 10.1134/S1995425521020098
Аннотация: Ecological regularities of the Urup Island landscape differentiation of avifauna and bird populationare analyzed. The data were obtained in a 2019 expedition during a survey of the southern part of the GreatKuril ridge. The research was conducted in the vicinity of Novokurilskaya Bay in the northeast of Urup Islandand in the vicinity of Shchukin Bay on the Van der Lind Peninsula in the southwest of the island by routeaccounting on transects of unlimited width at altitudes of 0–200 m above sea level. The commonality of thetaxonomic structure and species composition of the avifauna on Urup Island is high; in 2019, 90 bird specieswere recorded there: 59 on the northeast and 56 on the southwest of the island. The similarity coefficient oflocal avifauna of the surveyed points (n = 2), which was obtained by the Sørensen formula, is 68%. In all, 38%of species are widespread, 41% are local, and 21% are in isolated foci. Six species were recorded on UrupIsland for the first time. The taxonomic structure of the Urup avifauna, formed by species of 12 orders, correspondsto the zonal and landscape features of island territories located near northeastern Eurasia. Passeriformes(39%), Charadriiformes (28%), and Anseriformes (10%), which are characteristic of the Boreal andHypo-Arctic zones of the Palearctic, dominate. The zoogeographic originality of the local avifauna is due tothe combination of elements of the Far Eastern–island, Pacifical, Siberian, and Chinese faunal complexes;Siberian–American and widespread species; and Japanese island endemics. The avifauna of Urup Island isformed in the system of general zonal-landscape and altitude-belt patterns combining ecological groups ofmarine, land, and mountain species. Mountain specifics of the avifauna are defined by the species (n = 9),which are ecologically closely related to land or water–near-water elements of the alpine landscape overthe entire area of their range or a significant part of it. The bird population density of land habitats is323‒609 sp/km² (on average 466 sp/km²); on the coast and nearby sea area, it is 774–2050 sp/km²(onaverage 1412 sp/km²). The similarity coefficients of bird populations are 20% in land-based habitats and17% in the coastal-marine habitats. The population of forest and bush habitats is dominated by the Pacificswift, buff-bellied pipit, Arctic warbler, Eurasian nutcracker, and gray bunting. The population in the coastand the adjacent sea area is dominated by the harlequin duck, glaucous-winged gull, black-legged kittiwake,Pacific swift, buff-bellied pipit, and black-backed (White) wagtail. In open sea areas, the most common speciesare the black-footed albatross and Laysan albatross, northern fulmar, short-tailed shearwater, commonmurre, and tufted puffin.
Добавил в систему: Романов Алексей Анатольевич

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Landscape and Ecological Differentiation of the Fauna and Bird Population of Urup Island (Big Kuril Ridgeстатья

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