ЗООГЕОГРАФИЧЕСКАЯ ХАРАКТЕРИСТИКА МАМОНТОВОЙ ФАУНЫ ЮГА СИБИРИ

• Main Author: МАЛИКОВ ДМИТРИЙ ГЕННАДЬЕВИЧ
• Format: Text
• Language: unknown
• Published: Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования «Национальный исследовательский Томский государственный университет» 2015
• Subjects: МАМОНТОВАЯ ФАУНА,НЕОПЛЕЙСТОЦЕН,ЗООГЕОГРАФИЯ,АРЕАЛОЛОГИЧЕСКИЙ МЕТОД,ИНДЕКС СХОДСТВА,МИНУСИНСКАЯ КОТЛОВИНА,ЮГ СИБИРИ,MAMMOTH FAUNA,NEOPLEISTOCENE,ZOOGEOGRAPHY,AREOGRAPHIC METHODS,INDEX OF SIMILARITY,MINUSINSK BASIN,SOUTH OF SIBERIA; Arctic; Rangifer tarandus; Vulpes lagopus; Siberia
• Online Access: http://cyberleninka.ru/article/n/zoogeograficheskaya-harakteristika-mamontovoy-fauny-yuga-sibiri; http://cyberleninka.ru/article_covers/16402190.png

Выявлено, что в позднем неоплейстоцене территория Алтае-Саянской горной области находилась на границе Европейско-Сибирской и Центрально-Азиатской зоогеографических подобластей Палеарктики. Существование границы подтверждается пересечением в регионе ареалов многих узкоспециализированных видов млекопитающих. Рассчитаны индексы сходства фаун крупных млекопитающих Алтае-Саянской горной области с сопредельными регионами. Выявлено, что одним из ключевых элементов этой границы являлась территория Минусинской котловины. Благодаря высокому разнообразию ландшафтов в регионе был богатый видовой состав крупных млекопитающих, сочетающий как арктические, так и цен-тральноазиатские виды. The article shows that in the late Neopleistocene the area of the Altai-Sayan mountain region was located on the border of the Euro-Siberian and Central-Asian subregions of the Palearctic zoogeographical region. The intersection areals of many highly specialized species of large mammals in the region confirms the existence of this border. So, it is proved that typical Central-Asian mammals (Procapra gutturosa, Camelus bactrianus, Spirocerus kiakhtensis, Bos baikalensis, Vulpes corsac) and Arctic mammals (Ovibos pallantis, Vulpes lagopus) inhabited the region. In the article the indices the similarity of the faunas of large mammals in the Altai-Sayan mountain region with the neighboring regions were calculated. These indices confirmed the data obtained by areographic methods. It was revealed that one of the key elements of this border is the area of the Minusinsk depression. The Simpson index of similarity of the fauna of this depression with the faunas of the neighboring regions is maximum (averages 97.4 %). A rich species composition of the large mammals fauna of the Minusinsk depression is explained by high landscape diversity in the region. In addition, it was found that within the Altai-Sayan mountain region small differences in the fauna existed. So, for the territory of the Altai specific Central-Asian species are more typical: Hystrix hirsutirostris, Spirocerus kiakhtensis, whose remains are not found in the territory of the Minusinsk depression. The representatives of Arctic biocenoses (Vulpes lagopus, Rangifer tarandus, Ovibos pallantis) have been more abundant and diverse in the territory of the Minusinsk depression, by contrast to the Altai. Perhaps, this is due to the fact that the territory of the Altai is situated in the vicinity of Kazakhstan, and the Central-Asian species may have migrated to the Altai from there. But the territory of the Minusinsk depression is surrounded by mountain ranges, and an easy access is possible only through the north, which some species simply could not reach. It was easier for the Arctic species to enter the territory of the Minusinsk depression than the Altai, because the main part of the areal of these species was situated to the north of the region. It is most likely that the detected zoogeographical border had existed before the late Neopleistocene. The find of the Procapra gutturosa remains from the Shishkin log location in the middle Neopleistocene Age proves this assumption.