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Deficiency of Rare-Earth Elements in Natural Landscape Components as a Cause of Geophagy among Ungulates on Olkhon Island.

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Title: Deficiency of Rare-Earth Elements in Natural Landscape Components as a Cause of Geophagy among Ungulates on Olkhon Island.
Authors: Panichev, A. M.1 (AUTHOR) sikhote@mail.ru, Baranovskaya, N. V.2 (AUTHOR), Chekryzhov, I. Yu.3 (AUTHOR), Seryodkin, I. V.1 (AUTHOR), Ivanov, V. V.3 (AUTHOR), Vakh, E. A.3 (AUTHOR), Elovskii, E. V.3 (AUTHOR)
Source: Doklady Earth Sciences. Aug2023, Vol. 511 Issue 2, p659-662. 4p.
Subjects: Pica (Pathology), Natural landscaping, Ungulates, Effect of stress on animals, Weathering
Abstract: The relevance of this research is based on systematic study of the causes of geophagy from the viewpoint of the rare-earth hypothesis. It follows from the original results of comprehensive geological–hydrobiogeochemical studies carried out on Olkhon Island (Lake Baikal) that the phenomenon of geophagy in wild and domestic ungulates is due to a deficiency of light rare-earth elements (LREEs) in plant foods and natural waters. This deficiency is related to a low LREE concentration in the composition of the most common metamorphic terrigenous–carbonate rocks, talus, and soils in the island. This geochemical specificity of landscapes can be the cause of LREE imbalance in the hormonal system of the body. The hormonal stress makes animals consume regularly and periodically kaolinite clays of weathering rocks enriched in the necessary elements. [ABSTRACT FROM AUTHOR]
Copyright of Doklady Earth Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Deficiency of Rare-Earth Elements in Natural Landscape Components as a Cause of Geophagy among Ungulates on Olkhon Island.
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  Data: <searchLink fieldCode="JN" term="%22Doklady+Earth+Sciences%22">Doklady Earth Sciences</searchLink>. Aug2023, Vol. 511 Issue 2, p659-662. 4p.
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  Data: The relevance of this research is based on systematic study of the causes of geophagy from the viewpoint of the rare-earth hypothesis. It follows from the original results of comprehensive geological–hydrobiogeochemical studies carried out on Olkhon Island (Lake Baikal) that the phenomenon of geophagy in wild and domestic ungulates is due to a deficiency of light rare-earth elements (LREEs) in plant foods and natural waters. This deficiency is related to a low LREE concentration in the composition of the most common metamorphic terrigenous–carbonate rocks, talus, and soils in the island. This geochemical specificity of landscapes can be the cause of LREE imbalance in the hormonal system of the body. The hormonal stress makes animals consume regularly and periodically kaolinite clays of weathering rocks enriched in the necessary elements. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Doklady Earth Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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