广西师范大学学报（自然科学版） ›› 2015, Vol. 33 ›› Issue (1): 152-158.doi: 10.16088/j.issn.1001-6600.2015.01.025

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稳定同位素技术对贵州青菜洞和癞子洞营养级关系的研究

周谷春, 徐承香, 黎道洪, 罗庆怀   

  1. 贵州师范大学生命科学学院,贵州贵阳550001
  • 收稿日期:2014-12-31 出版日期:2015-03-15 发布日期:2018-09-17
  • 通讯作者: 徐承香(1984—),女,贵州思南人,贵州师范大学副教授。E-mail: xcxiang119@163.com
  • 基金资助:
    国家自然科学基金资助项目(31160097);贵州师范大学博士科研项目基金资助(11904-0514015)

Trophic Structure of the Cave Comminity of Laizi Cave and QingcaiCave of Karst Cave in Guizhou: a Stable Isotope Analysis

ZHOU Gu-chun, XU Cheng-xiang, LI Dao-Hong, LUO Qing-Huai   

  1. College of Life Sciences, Guizhou Normal University, Guiyang Guizhou 550001, China
  • Received:2014-12-31 Online:2015-03-15 Published:2018-09-17

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摘要： 本文应用稳定同位素技术对贵州喀斯特洞穴青菜洞和癞子洞生态系统的营养级关系进行研究。结果表明,青菜洞和癞子洞食物链的碳源主要为洞穴内土壤有机质,为第一营养级(即初级生产者);洞穴内软体动物的螺类和节肢动物的裸灶螽、马陆等主要以土壤有机质和颗粒有机物为食,为第二营养级(即初级消费者);洞穴内的节肢动物的蜘蛛类和脊椎动物主要以其他动物为食物,为第三营养级(即次级消费者)。本文中青菜洞Δδ15N的富集因子为2.9‰,癞子洞Δδ15N的富集因子为2.46‰。

关键词: 营养级, 稳定同位素, 青菜洞, 癞子洞, 贵州省

Abstract: Stable isotope analysis (δ13C and δ15N) in karst’s cave ecosystem of Qingcai cave and Laizi cave of Guizhou Province is applied to study food webs and trophic level relationship. The results shows that the carbon source in food chain of Qingcai cave and Laizi cave is mainly from SOM and POM such as bat feces, as the first trophic level, i.e., the primary producers. Molluscan snails and arthropod of cave (Diestrammena (Gymnaeta) sp. and Pacidesmus sp.) mainly feed on SOM and POM, as the second trophic level, i.e., the primary consumers. The spiders on the arthropod and vertebrate mainly feed on other animals, as the third trophic level, i.e., the secondary consumer. The enrichment factor of Δδ15N in Qingcai cave is 2.9 ‰, and in Laizi cave is 2.46 ‰.

Key words: food webs, stable isotope, Qingcai cave, Laizi cave, Guizhou Province

中图分类号: 

  • Q958.1
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