Новые данные по распространению и численности некоторых хищных птиц и Сов в Обском правобережье Новосибирской области
The territory of the Berd' river valley in the Novosibirsk district has been surveyed in 26 June2 August 2002, 12 25 June 2003 and 17 23 July 2003. The Golden Eagle (Aquila chrysaetos). Three nests were found in the Berd' river valley and one was in the Bol'shoy El'bash river val...
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Общество с ограниченной ответственностью «Сибэкоцентр»
2005
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| Online Access: | http://cyberleninka.ru/article/n/novye-dannye-po-rasprostraneniyu-i-chislennosti-nekotoryh-hischnyh-ptits-i-sov-v-obskom-pravoberezhie-novosibirskoy-oblasti http://cyberleninka.ru/article_covers/14791780.png |
| Summary: | The territory of the Berd' river valley in the Novosibirsk district has been surveyed in 26 June2 August 2002, 12 25 June 2003 and 17 23 July 2003. The Golden Eagle (Aquila chrysaetos). Three nests were found in the Berd' river valley and one was in the Bol'shoy El'bash river valley. The all nests were located on pines. Density of the Golden Eagle is estimated as 0,05 pair per 1 sq.km of the river valley. Average distance between nests was 4,15 km. A total of 10 pairs (7-12) are estimated for the Berd' river valley, 63 pairs (50-70) for the Salair mountains. At whole a total of 70 breeding pairs are projected for the right bank of the Ob' river in the Novosibirsk district. The Booted Eagle (Hieraaetus pennatus) There was the first registration for the Novosibirsk district. The nest was found in 28 July 2002 on a poplar, 1 adult was recorded in 1 August 2002. The Honey Buzzard (Pernis apivorus), including of which in the Red Data Book of the Novosibirsk district was failed. This is the common species in the Berd' river valley. The frequency of recording was 8,36 individuals 100 km of the river. The density was 26,76 individuals per 100 sq. km of the river valley or 21,41 pairs per 100 sq. km of the river valley. A total of 76,46 pairs (70,61 81,06 pairs) are estimated in the Berd' river valley. The maximal density was recorded in pine forests along the Berd' (there was 0,31 pairs per sq. km of forest). The total of 2659 breeding pairs (2373 2765) are estimated for the right bank of the Ob' river in the Novosibirsk district. The Peregrine Falcon (Falco peregrinus) was registered on the right bank of the Ob' river in the Novosibirsk district at first for last 50 years. In the Berd' valley the Peregrine Falcon was registered to breed only in the Salair mountains, where river cliffs located. Three breeding areas were found. Distances between breeding areas were 2,0 and 6,5 km. A total of 4-6 breeding pairs are estimated for the Berd' valley and 7-13 pairs for the whole right bank of the Ob' river in the Novosibirsk district. The Eagle Owl (Bubo bubo) was found to breed in the Berd' valley. The fragment of the river valley (total length of which was 32,63 km) was surveyed for detailed research of the breeding. Five breeding areas were found on the fragment. At whole 6 areas were found, four, from which were active. Nesting was registered on 2 areas, but only at one it was successful. Average distance between breeding areas was 4,4 km (2,4 6,0 km). A total of 15 20 are estimated for the Salair mountains in the Novosibirsk district, and 10 12 pair from which breed in the Berd' valley. The Scops Owl (Otus scops) is common breeding species of the Berd' valley. By point counts in 2002 21 adults were registered on 14 breeding areas. Average density was 3,82 individuals per sq. km or 2,55 pairs per sq. km. A total of 372 pairs (334 410 pairs) are estimated for the Berd' valley (145,96 кв.км) and 818 pairs (735 902) for river valleys of the Salair mountains. The total number are estimated to breed no more than 2000 pairs for the right bank of the Ob' river in the Novosibirsk district. The Pygmy Owl (Glaucidium passerinum) is common breeding species of the Berd' valley. During night counts only 4 adults were recorded on 4 areas. Average density for Berd' valley was 0,73 pairs per sq. km. On transect lines density was pairs per sq. km of pine and pine-birch forests on rocks. A total of 260 breeding pairs are estimated in the Berd' valley. Under average density of 2,15 pairs per sq. km a total of 2798 breeding pairs (2250 2976 pairs) are estimated in forests of the Salair mountains (including the Berd' valley). A total of 2000 pairs are projected to breed in forests of the Salair mountains, and 4000-5000 pairs breed in the right bank of the Ob' river in the Novosibirsk district. The territory of the Berd' river valley in the Novosibirsk district has been surveyed in 26 June2 August 2002, 12 25 June 2003 and 17 23 July 2003. The Golden Eagle (Aquila chrysaetos). Three nests were found in the Berd' river valley and one was in the Bol'shoy El'bash river valley. The all nests were located on pines. Density of the Golden Eagle is estimated as 0,05 pair per 1 sq.km of the river valley. Average distance between nests was 4,15 km. A total of 10 pairs (7-12) are estimated for the Berd' river valley, 63 pairs (50-70) for the Salair mountains. At whole a total of 70 breeding pairs are projected for the right bank of the Ob' river in the Novosibirsk district. The Booted Eagle (Hieraaetus pennatus) There was the first registration for the Novosibirsk district. The nest was found in 28 July 2002 on a poplar, 1 adult was recorded in 1 August 2002. The Honey Buzzard (Pernis apivorus), including of which in the Red Data Book of the Novosibirsk district was failed. This is the common species in the Berd' river valley. The frequency of recording was 8,36 individuals 100 km of the river. The density was 26,76 individuals per 100 sq. km of the river valley or 21,41 pairs per 100 sq. km of the river valley. A total of 76,46 pairs (70,61 81,06 pairs) are estimated in the Berd' river valley. The maximal density was recorded in pine forests along the Berd' (there was 0,31 pairs per sq. km of forest). The total of 2659 breeding pairs (2373 2765) are estimated for the right bank of the Ob' river in the Novosibirsk district. The Peregrine Falcon (Falco peregrinus) was registered on the right bank of the Ob' river in the Novosibirsk district at first for last 50 years. In the Berd' valley the Peregrine Falcon was registered to breed only in the Salair mountains, where river cliffs located. Three breeding areas were found. Distances between breeding areas were 2,0 and 6,5 km. A total of 4-6 breeding pairs are estimated for the Berd' valley and 7-13 pairs for the whole right bank of the Ob' river in the Novosibirsk district. The Eagle Owl (Bubo bubo) was found to breed in the Berd' valley. The fragment of the river valley (total length of which was 32,63 km) was surveyed for detailed research of the breeding. Five breeding areas were found on the fragment. At whole 6 areas were found, four, from which were active. Nesting was registered on 2 areas, but only at one it was successful. Average distance between breeding areas was 4,4 km (2,4 6,0 km). A total of 15 20 are estimated for the Salair mountains in the Novosibirsk district, and 10 12 pair from which breed in the Berd' valley. The Scops Owl (Otus scops) is common breeding species of the Berd' valley. By point counts in 2002 21 adults were registered on 14 breeding areas. Average density was 3,82 individuals per sq. km or 2,55 pairs per sq. km. A total of 372 pairs (334 410 pairs) are estimated for the Berd' valley (145,96 кв.км) and 818 pairs (735 902) for river valleys of the Salair mountains. The total number are estimated to breed no more than 2000 pairs for the right bank of the Ob' river in the Novosibirsk district. The Pygmy Owl (Glaucidium passerinum) is common breeding species of the Berd' valley. During night counts only 4 adults were recorded on 4 areas. Average density for Berd' valley was 0,73 pairs per sq. km. On transect lines density was pairs per sq. km of pine and pine-birch forests on rocks. A total of 260 breeding pairs are estimated in the Berd' valley. Under average density of 2,15 pairs per sq. km a total of 2798 breeding pairs (2250 2976 pairs) are estimated in forests of the Salair mountains (including the Berd' valley). A total of 2000 pairs are projected to breed in forests of the Salair mountains, and 4000-5000 pairs breed in the right bank of the Ob' river in the Novosibirsk district. |
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