云南大中山黑颈长尾雉活动区种群密度及空间分布

Population Density and Spatial Pattern in Ranging of Syramticus humiae in Dazhong Mountain, Yunnan

摘要: 2008年3—4月，在云南大中山自然保护区对黑颈长尾雉种群密度、空间分布模式及对自然生境因子的选择进行研究。结果表明：大中山黑颈长尾雉在其活动区的种群密度为0.156~0.500只/km2；经Poisson函数和χ2检验，分布位点的实际观测值与理论预测结果相差较大(χ2=139.51，P<0.001)，空间分布呈聚集型(s2/m=8.41)；通过对生境特征的分析，发现黑颈长尾雉对中山湿性常绿阔叶林(Ei=0.22)、东坡(Ei=0.32)、距水源距离0~200m(Ei=0.03)和高海拔(Ei=016)等因子呈偏好选择。

Abstract: Population density, spatial pattern and ecological factors of the Syrmaticus humiae had been surveyed since March to April, 2008 in Dazhong Mountain, Yunnan. The result showed that the population density of Syrmaticus humiae was about 0.156-0.500 ind./km2. There was significant different between the actual observation and theory predicts (χ2=139.51，P<0.001) by Poisson tests and χ2 tests. The spatial pattern of Syrmaticus humiae exhibited a clustered distribution (s2/m=8.41). Syrmaticus humiae prefered sites with factors of midmountain moist evergreen broadleaf forest (Ei=0.22), East bevel (Ei=0.32), distance to water 0-200m(Ei=0.03) and high altitude(Ei=0.16)by analyzing the characters of habitat.