西伯利亚西部小型洞熊 Ursus (Spelaearctos) rossicus Borissiak, 1930（哺乳纲，食肉目，熊科）骨骼中 13С 和 15N 同位素的胶原含量。

Q3 Agricultural and Biological Sciences Doklady Biological Sciences Pub Date : 2023-12-01 Epub Date: 2024-01-08 DOI:10.1134/S0012496623700874

P A Kosintsev

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摘要

研究人员测定了西伯利亚西部三个地区的小型洞熊 Ursus (Spelaearctos) rossicus Borissiak（1930 年）骨骼中胶原蛋白的 13C 和 15N 同位素含量。这些骨骼的年代可追溯到海洋同位素阶段（MIS）3，属于成熟的雄性和雌性。其中一些样本仅在δ15N方面存在差异。所有样本中的熊都来自同一营养级。在一个地区的雌性和雄性之间以及两个地区的雄性之间观察到了营养级的变化。西伯利亚西部的小洞熊与乌拉尔南部的小洞熊不同，它们的生活方式更具掠食性。乌拉尔熊和西伯利亚熊之间的差异程度与不同的营养水平相对应。

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Collagen Contents of ¹³С and ¹⁵N Isotopes in Bones of Small Cave Bear Ursus (Spelaearctos) rossicus Borissiak, 1930 (Mammalia, Carnivora, Ursidae) from Western Siberia.

The ¹³C and ¹⁵N isotope contents in collagen were determined in bones of the small cave bear Ursus (Spelaearctos) rossicus Borissiak, 1930 from three regions of Western Siberia. The bones dated back to marine isotope stage (MIS) 3 and belonged to mature males and females. Some of the samples differed only in δ¹⁵N. Bears of all samples were from the same trophic level. Trophic shifts were observed between females and males in one region and between males of two regions. The small cave bear of Western Siberia differed from the small cave bear of the Southern Urals in leading a much more predatory lifestyle. The extent of differences between the Ural and Siberian bears corresponded to different trophic levels.

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Doklady Biological Sciences Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.10

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0.00%

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期刊介绍： Doklady Biological Sciences is a journal that publishes new research in biological sciences of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.