河南伏牛山北坡果子狸夏季巢穴生境特征

通过对伏牛山北坡果子狸夏季巢穴生境选择的研究,以海拔、植被类型、坡度、坡向、坡位、巢穴隐蔽程度、水源距离、干扰距离、郁闭度、乔木距离、灌木距离、灌木密度12个指标进行评估。分析结果表明,果子狸夏季巢穴生境的选择特征是:(1)地理分布因子:海拔900-1200m地带,以阔叶林为主,杂有少量针阔混交林。(2)干扰因子:距离人类活动较近的地方。(3)隐蔽因子:郁闭度高、灌木密度高、隐蔽程度好的巢穴。(4)地形因子:巢穴位于斜坡或陡坡的上坡位或中坡位的阳坡或半阳坡。(5)食物丰富度因子:巢穴选择在乔木个体发育较好的阔叶林中,有丰富的食物来源。(6)水源因子:水源距离在100m以内。

A preliminary analysis on summer caves selection of Masked palm civet (Paguma larvata) on the north slope of Funiu Mountain

Summer caves of Masked palm civets (Paguma larvata) were surveyed on the north slope of Funiu Mountain in July and August, 2005. Twelve environmental variables possibly pertaining to cave selection were measured, including altitude, vegetation type, slope, aspect, location, level of cave concealment, distance to water source, distance to disturbance, canopy cover, average distance to trees, average distance to shrubs, shrub density. The results showed that summer caves of the Masked palm civet were located in broadleaf forests with high levels of canopy cover, shrub density and concealment, at an elevation of 900-1200 m on skew and steep, sunny and semi-sunny slopes. The caves were usually close to human residences and less than 100 m from a water source.