洪雅县人工林赤腹松鼠活动范围及栖息地利用

2009年3～8月期间,通过观察并利用无线电遥测等方法对洪雅县林场赤腹松鼠(Callosciurus erythraeus)的活动范围和栖息地利用进行了研究。研究结果显示,赤腹松鼠的最小凸多边形(minimum convex polygon,MCP)巢域面积为(1.90±0.59)hm2,95%和60%固定核法(fixed kernel,FK)巢域面积分别为(1.06±0.19)hm2和(0.16±0.03)hm2。处在求偶高峰期的雄鼠会显著地扩大活动范围。栖息地利用的研究结果表明,赤腹松鼠对栖息地因子有明显的选择性,倾向在坡度大、灌木生长繁茂、靠近人居和水源及有藤本植物覆盖的区域活动。

Home Range and Habitat Use of Red-bellied Squirrels in Planted Forest of Hongya County

Field observation and radio telemetry were used to study the home range and habitat use of red-bellied squirrels (Callosciurus erythraeus) in planted forest of Hongya County in Sichuan Province during March to August in 2009. The results indicated that the average home range size were 1. 90 ± 0. 59 hm² by minimum convex polygon method,1. 06 ± 0. 19 hm² by 95% fixed kernel method and 0. 16 ± 0. 03 hm² by 60% fixed kernel method. The male squirrels expanded their home range significantly during the peak courtship period. The favorite habitats of the squirrels were the places with steeper slope gradient,higher shrub and liana cover, close to resident of human and water source.