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利用光纤光谱仪量化和分析鸟类的卵色

杨灿朝1,2,3;蔡燕2;张淑萍1;梁伟2   

  1. 1中央民族大学生命环境学院, 北京 100081; 2海南师范大学生命科学学院, 海口 571158;3中山大学生命科学学院, 广州 510275
  • 收稿日期:2008-09-25 修回日期:1900-01-01 出版日期:2009-02-10 发布日期:2009-02-10

Quantitative analysis of bird egg color by using fiber spectrophotometer.

YANG Can-chao1,2,3;CAI Yan2;ZHANG Shu-ping1;LIANG Wei2   

  1. 1College of Life & Environment Science, Central University for Nationalities, Beijing 100081, China; 2College of Life Sciences, Hainan Normal University, Haikou 571158, China; 3School of Life Science, Sun Yat-sen University, Guangzhou 510275, China
  • Received:2008-09-25 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10

摘要: 在国内首次利用光纤光谱仪对鸟卵的颜色进行量化和分析。通过对灰林鵖(Saxicola ferrea)和矛纹草鹛(Babax lanceolatus)2种鸟的卵色300~700 nm的光谱测量,表明这2种鸟除蓝色色度外,二者卵色在亮度、绿色、黄色以及红色色度上均存在显著差异。灰林鵖和矛纹草鹛卵色的可见光反射光谱反射比值呈现很相似的平行关系,拥有共同的高峰和低峰;而其卵色的紫外光部分呈现从差异大到差异小的变化。用主成分分析光谱的反射和形状,结果对于灰林鵖和矛纹草鹛,前3个主成分分别解释了99.9%和99.8%的光谱变量,其中代表鸟卵亮度的第1主成分分别解释了93.7%和89.3%的变量,代表卵色饱和度的第2主成分分别占总变量的5.5%和9.1%。利用光纤光谱仪对鸟卵的颜色进行定量分析,可为鸟类的区系分类、系统进化和行为生态学等方面的研究提供更客观和科学的数据,同时也拓展了新的研究领域和视角。

关键词: 带鱼, 小型鱼类, 空间异质性, 变异函数

Abstract: In this paper, fiber spectrophotometer was first used in China to quantitatively analyze the egg color of Grey Bushchat (Saxicola ferrea) and Chinese Babax (Babax lanceolatus). The spectral measurement within the range of 300〖KG-*2〗-〖KG-*7〗700 nm showed that the egg color of the two bird species had significant differences in brightness and in green, yellow, and red chroma, but less difference in blue chroma. The spectral reflection ratios of visible light were of approximately parallel for the two bird species, with the same peak and foot, while those of ultra-violet were changing from high to low in differences. Principal component analysis of spectral reflection and shape indicated that the first three components together explained 999% and 998% of variation in the spectra of egg color of S. ferrea and B. lanceolatus, respectively. The first principal component (PC1) representing egg brightness explained 937% and 893% of variation, while the second principal component (PC2) representing egg chromatic variation accounted for 55% and 9.1% of the total variance, respectively. Using fiber spectrophotometer to quantitatively analyze bird egg color could provide more objective and scientific data for the study of bird classification, phylogenic evolution, and behavioral ecology, and develop new research area and angel of view.

Key words: Hairtail, Small-scale fish, Spatial heterogeneity, Semivariogram