不同色型棕背伯劳(Lanius schach)的巢址选择比较  

A comparison of nest-site selection among different color morphs of Lanius schach in Haifeng, Guangdong, China

作　　者：赵世烨[1] 唐思贤[2] 丁志锋[3,4] 胡慧建[3,4] 

机构地区：[1]华东师范大学河口海岸学国家重点实验室,上海200062 [2]华东师范大学生命科学学院,上海200062 [3]广东省昆虫研究所,广州510260 [4]广东省野生动物保护与利用公共实验室,广州510260

出　　处：《生态科学》2015年第5期154-158,共5页Ecological Science

基　　金：广东省科学院青年科学研究基金项目(No.qnjj201405);海珠区科技和信息化局项目(2013-cg-03;2014-cg-17)

摘　　要：2008年2—6月,在广东海丰鸟类自然保护区对棕背伯劳棕色型(normal morph)、黑色型(dark morph)及其不同杂交型的巢址选择及巢的生态测量值进行了比较。结果如下:1)野外观察发现棕背伯劳不同色型间未有生殖隔离;2)对59巢15个巢址因子进行主成分分析表明,巢址选择均主要受5个主成分的影响(5个主成分中,相对系数绝对值最高的变量依次是:巢位高、水源距离、巢下方郁闭度、巢枝分叉级数和巢树隐蔽度),累计贡献率达70.18%。三种交配型(黑色型-黑色型,黑色型-棕色型和棕色型-棕色型)巢址选择的主要影响因子皆无显著性差异(P>0.05)。3)不同交配型在巢材选择上取材均较为广泛,但差异不显著,巢的生态测量值亦无显著差异(P>0.05)。结论认为,棕背伯劳不同色型在巢址生态位尺度上未出现明显分化。A comparison of nest-site selection among different color morphs of Lanius schach and nest characteristics were studied in Haifeng Birds Nature Reserve, Guangdong Province from Feb. to Jun. 2008. The results were as follows. 1） There was no reproductive isolation between the dark morph and normal morph of Lanius schach. 2） Fifteen parameters collected at 59 nest sites were subjected to a principal component analysis（PCA）, and the results showed that five principal components were abstracted, which explained 70.18% of the total variance（in the main components, height of the nest, distance from water, canopy cover under nest, divarication number of the nesting branch and hidden degree of the nesting tree had the highest relative coefficient absolute value）. Furthermore, there were no significant differences among three mating types of Lanius schach in nest-site selection（P 〉0.05）（dark morph mating dark morph, normal morph mating dark morph and normal morph mating normal morph）. 3） There were few differences in nest materials among different mating types, and the composition of their nest material was diversified, depending on materials around nests. Also, there were no significant differences in nest measurements among different mating types（P 〉0.05）. In a word, there were no significant differences in ecological niche scale of nest-site among different color morphs of Lanius schach.

关 键 词：色型 棕背伯劳 巢址选择 海丰 

分 类 号：Q958.11[生物学—动物学]