| 内蒙古呼伦贝尔东部地区春季鸿雁巢址选择研究 |
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| 引用本文： | 丛璐璐.内蒙古呼伦贝尔东部地区春季鸿雁巢址选择研究[J].安徽农业科学,2010,38(14):7372-7375. |
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| 作者姓名： | 丛璐璐 |
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| 作者单位： | 东北林业大学野生动物资源学院,黑龙江哈尔滨,150040 |
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| 基金项目： | Conservation Leadership Programme Fellow-up AWARDS2008 |
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| 摘 要： | 目的]研究内蒙古呼伦贝尔东部地区鸿雁的巢址选择。方法]通过野外调查获取巢址样方和非巢样点的数据,通过主成分分析确认鸿雁巢址选择的主要影响因子。结果]数据的Z检验表明,只有巢周芦苇密度呈正态分布,距明水面距离、明水面面积、巢周芦苇面积、巢周芦苇高度、巢周芦苇密度、距人为干扰距离有显著差异。主成分分析表明,前4个主成分的特征值都大于1,并且其累计贡献率达到64.700%。第1主成分中岛的大小、巢周芦苇面积、巢周芦苇密度的贡献率达22.184%;第2主成分中巢周芦苇高度、距明水面距离的贡献率为16.546%;第3主成分中距人为干扰距离、巢下水深的贡献率为14.076%;第4主成分中距人为干扰距离、巢周芦苇盖度的贡献率是11.868%。在4个主成分中反映鸿雁繁殖期隐蔽与逃逸的因子占主要地位。结论]该研究为鸿雁繁殖生境的保护提供了理论依据。
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| 关 键 词： | 鸿雁 巢址选择 主成分分析 呼伦贝尔东部 |
Research on Nest-site Selection of Anser cygnoides in East Hulun Buir Area of Inner Mongolia in Spring |
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| CONG Lu-lu.Research on Nest-site Selection of Anser cygnoides in East Hulun Buir Area of Inner Mongolia in Spring[J].Journal of Anhui Agricultural Sciences,2010,38(14):7372-7375. |
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| Authors: | CONG Lu-lu |
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| Institution: | CONG Lu-lu (College of Wild Animal Resources,Northeast Forestry University,Harbin,Heilongjiang 150040) |
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| Abstract: | Objective]The aim was to research nest-site selection of Anser cygnoides in East Hulun Buir area of Inner Mongolia. Method]The data about nest-site plots and non-nest plots were obtained through wild investigation and the principal influence factors of nest-site selection of A. cygnoides were confirmed through principal component analysis. Result]Z-test on data showed that only the density distribution of reeds around nest was normal. There was significant difference in distance from exposed water surfac... |
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| Keywords: | Anser cygnoides Nest-site selection Principal component analysis East Hulun Buir |
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