青藏高原3种常见鸟类卵壳膜稳定碳、氮同位素组成特征  

Stable Carbon and Nitrogen Isotope Compositions of Egg Membrane from Three Bird Species in Qinghai-Tibet Plateau

作　　者：李继荣[1,2] 杨乐 曹建[1,2] 王文娟[1] 李来兴[1] 

机构地区：[1]中国科学院西北高原生物研究所高原生物适应和进化重点实验室,西宁810001 [2]中国科学院大学,北京100049 [3]西藏自治区高原生物研究所,拉萨850001

出　　处：《四川动物》2015年第5期683-687,694,共6页Sichuan Journal of Zoology

基　　金：国家重点基础研究发展规划项目(2010CB530301)(973计划项目);国家科技支撑计划项目(2008BADB0B0303);国家自然科学基金项目(31071936)

摘　　要：本文测定了青藏高原3种常见鸟类——普通鸬鹚Phalacrocorax carbo、渔鸥Larus ichthyaetus和小云雀Alauda gulgula卵壳膜的δ13C、δ15N,同时结合相关文献同物种肌肉组织中的δ13C、δ15N数据,探讨了卵壳膜代替肌肉作为稳定同位素载体的可行性。结果表明,小云雀、普通鸬鹚和渔鸥卵壳膜的δ13C分别为-20.80‰±0.48‰、-23.29‰±0.35‰和-24.20‰±0.33‰,而δ15N分别为9.25‰±0.87‰、14.40‰±1.03‰和13.94‰±0.43‰。单因素方差分析结果显示:3个物种卵壳膜δ13C、δ15N差异均具有高度统计学意义(P<0.01)。其中,δ13C值小云雀相对于普通鸬鹚偏正,普通鸬鹚相对于渔鸥偏正;普通鸬鹚与渔鸥之间δ15N值差异无统计学意义,但二者相对于小云雀显著偏正。因此,我们认为在一些问题的研究中卵壳膜可以代替肌肉组织作为稳定同位素的载体。The δ13and δ15N of the egg shell membranes of great cormorant（ Phalacrocorax carbo）,Pallass gull（ Larus ichthyaetus） and skylark（ Alauda gulgula） were measured in this study,moreover,the feasibility of using egg shell membranes as the carrier of stable isotope of δ13C and δ15N instead of muscle was discussed on the basis of relevant literatures.The results showed that δ13C of egg shell membranes of skylark,great cormorant and Pallas s gull were- 20. 80‰ ±0. 48‰,- 23. 29‰ ± 0. 35‰ and- 24. 20‰ ± 0. 33‰,respectively; While δ15N were 9. 25‰ ± 0. 87‰,14. 40‰ ±1. 03‰ and 13. 94‰ ± 0. 43‰,respectively. The results of One-Way ANOVA showed that δ13C and δ15N of the egg shell membranes of the three species were very significantly different（ P 〈0. 01）. The δ13C value of skylark was positive correlated with great cormorant,while the value of δ13C in great cormorant was positive correlated with Pallass gull. No significant difference was observed in the values of δ15N between great cormorant and Pallass gull,interestingly,the δ15N values of the other two were positive correlated with skylark. In conclusion,we found that egg shell membranes could act as the carrier of stable isotope of δ13C and δ15N instead of muscle under certain circumstances.

关 键 词：普通鸬鹚 渔鸥 小云雀 卵壳膜 稳定同位素 青藏高原 

分 类 号：Q959.7[生物学—动物学]