摘要
2015年10月至2016年1月,采用样线法、样方法相结合的方法对上海动物园内野生赤腹松鼠(Callosciurus erythraeus)对城市景观的栖息地利用进行调查。结果表明:赤腹松鼠生境的主要特征:坡度<10°的平缓坡,阳坡,食物丰富度丰富,距水源距离为0~30 m,人为干扰距离为10~20 m,乔木密度10~20株,灌木密度100~150株,乔木胸径20~30 cm,灌木冠幅100~150 cm,郁闭度为优,植被林型为常绿阔叶林。影响赤腹松鼠生境选择的主要因子为食物丰富度、植被林型、距水源距离。赤腹松鼠倾向于食物来源丰富的生境,随机选择一般以及较差的生境;倾向于在常绿阔叶林中活动,随机选择常绿针叶林、常绿阔叶林、落叶阔叶林、针阔混交林、疏林草地、竹林的林型生境;倾向于距水源0~30 m的距离内活动;距水源距离30~120 m的生境随机活动;避免在距水源距离120~150 m的生境活动。
Tracking observation and samples investigation methods were used to study the habitat selected by red-bellied tree squirrels( Callosciurus erythraeus) in the urban landscape of Shanghai zoo in Shanghai from October 2015 to January 2016. The results indicated that the habitat of red-bellied tree squirrels shared the following characteristics,habitat of well food richness,closes to water was less than 30 m,it was built along the slope between 0 degree to 10 degree toward north faced slope.The habitat with well canopy density where human disturbance distance was about 10 m to 20 m,tree density was 10-20 plant,shrub density was 100-150 plant. Tree diameter at breast height was20-30 cm,shrub crown width was 100-150 cm,evergreen broad-leaf forest. The primary factors influencing red-bellied tree squirrels were food abundance,habitat type and spacing of water. we found that the red-bellied tree squirrels preferred the habitat of well food richness,randomly selected the habitat of average source of food and impoverished environment; tended to live in evergreen broad-leaf forest, randomly selected to live in evergreen coniferous forest, deciduous coniferous forest,broad-leaved deciduous forest,theropencedrymion,bamboo forest and grazing for-est. Red-bellied tree squirrels tended to act away from the water within 0-30 m,randomly selected the distance from the water within 30-120 m,and avoided the habitat between 120-150 m far away from the water.
引文
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