Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.
Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia.
Dokl Biol Sci. 2023 Jun;510(1):160-162. doi: 10.1134/S0012496623700357. Epub 2023 Aug 15.
First data on the contents of the C and N isotopes in collagen were obtained for 16 bones of the Ural cave bear Ursus (Spelaearctos) kanivetz Verestchagin, 1973 from the Tayn (Secrets) cave (55°25' N, 57°46' E). The bones are dated to the middle MIS 3 and belonged to males and females of about 2 years, about 3 years, and older than 4 years of age. No considerable difference in isotope signatures was observed between individuals of different ages and different genders. Cave bears were assumed to forage independently on plant food from the second year of life. The δC and δN values established for the Ural cave bear are close to the values reported for U. (S.) spelaeus ingressus.
首次获得了来自塔恩（秘密）洞穴（55°25'N，57°46'E）的 16 具乌拉尔洞熊（洞穴鬣狗）坎维策特沙金 1973 年骨骼中 C 和 N 同位素含量的数据。这些骨骼的年代可追溯到中更新世 3 期，属于约 2 岁、3 岁和 4 岁以上的雄性和雌性个体。不同年龄和性别的个体之间的同位素特征没有明显差异。假设洞熊从第二年起就独立以植物性食物为食。为乌拉尔洞熊确定的 δC 和 δN 值与 U.（S.）spelaeus ingressus 报道的值接近。
