【摘要】 于2007年对卡拉麦里山有蹄类保护区不同季节的鹅喉羚卧息地特征进行了研究。Mann-WhitneyU检验表明:春季鹅喉羚卧息地植物高度明显高于对照地(Z=2.27,P<0.05),驼绒藜密度、灌木盖度和地上生物量极显著高于对照地(Z=2.85,Z=3.29,Z=2.98,P<0.01);夏季鹅喉羚卧息地植物高度和单位面积地上生物量明显高于对照地(Z=2.06,Z=2.97,P<0.05);秋季鹅喉羚卧息地植物种数明显高于对照地(Z=2.52,P<0.05),灌木盖度和植物高度极显著高于对照地(Z=5.22,Z=4.58,P<0.01)。主成分分析表明,春夏秋3季影响鹅喉羚卧息地选择的主要环境因子是食物、隐蔽条件和环境温度。单因素方差分析表明,鹅喉羚卧息地特征在季节间有显著差异,以春季和夏季、春季和秋季最为明显。食物资源和环境温度的变化是导致鹅喉羚卧息地特征季节性变化的主要因素。鹅喉羚卧息地选择与其自身的体温调节有一定关系。更多还原

【Abstract】 In 2007,an investigation was made on the seasonal variations of the bedding site characteristics of Goitred gazelle (Gazella subgutturosa) in Kalamaili Mountain Nature Reserve.Mann-Whitney U test,Kolmogorov-Smirnov Z test,Kruskal-Wallis test,one way ANOVA and principal component (PCA) analysis were used for the multivariate analysis of variables.In the bedding site,the vegetation height,Ceratoides latens density,shrub coverage,and ground biomass in spring,the vegetation height and ground biomass per unit area in summer,and the vegetation height,shrub coverage,and species richness in autumn were significantly higher than those in the random plots.Principal component analysis showed that the key environment factors determining the selection of bedding site by G.subgutturosa in spring,autumn,and winter were food,concealment,and temperature.Analysis of one way ANOVA showed that there existed significant differences in the bedding site characteristics among the three seasons,especially between spring and summer,and between spring and autumn.The variations of food resources and environment temperature were the major factors inducing the seasonal variations of the bedding site characteristics,and the bedding site selection of G.subgutturosa had some relationships with its own thermoregulation.更多还原