Nitrogen and Carbon Isotope Study of Bat Guano Core from Eagle Creek Cave,Arizona,U.S.A. (質量分析連合討論会シンポジウム--生物活動と地球環境-2-)

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概要

• 論文の詳細を見る

• Nitrogen and carbon isotope ratios were studied in a stratified deposit of guano of Mexican Free-tailed bats in Eagle Creek Cave, Arizona, U.S.A. Little diagenetic change was observed over the 25-year time span of the guano deposit. High aridity and reduced circulation of air in the cave are hypothesized to have slowed the normally rapid decomposition of the excreta and the subsequent escape of resultant ammonia. The results suggest the high dependency of the speed of diagenetic change on specific physical and other conditions of the caves and indicate that great care need be exercised in the interpretation of the isotopic ecogeochemistry of old guano. Relative contribution of C3 photosynthesis to the food chain leading to the bats was estimated to be more than C4 photosynthesis.

• 日本質量分析学会の論文

著者

• MIZUTANI Hiroshi

  Laboratory of Biogeochemistry and Sociogeochemistry, Mitsubushi Kasei Institute of Life Sciences

• McFARLANE Donald

  Section of Mammalogy, Los Angeles County Museum of Natural History

• KABAYA Yuko

  Laboratory of Biogeochemistry and Sociogeochemistry, Mitsubushi Kasei Institute of Life Sciences

• Kabaya Y

  Mitsubishi Kasei Inst. Life Sciences Tokyo Jpn

関連論文

• Carbon and Nitrogen Isotopic Signatures of Bat Guanos as Record of Past Environments (質量分析連合討論会シンポジウム--生物活動と地球環境-2-)
• Nitrogen and Carbon Isotope Study of Bat Guano Core from Eagle Creek Cave,Arizona,U.S.A. (質量分析連合討論会シンポジウム--生物活動と地球環境-2-)

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