唐家河自然保护区夏季啮齿类的空间生态位  

Spatial Niche of the Rodents in Summer in Tangjiahe Nature Reserve

作　　者：王艳妮[1] 周材权[1] 张君[1] 周友兵[1] 胡锦矗[1] 熊耀武 

机构地区：[1]西华师范大学珍稀动植物研究所,南充637002 [2]唐家河国家级自然保护区,青川628109

出　　处：《兽类学报》2005年第1期39-44,共6页Acta Theriologica Sinica

基　　金：唐家河综合科学考察基金 ;四川省重点学科建设项目 (SZD 0 42 0 )

摘　　要：本文在野外调查的基础上 ,运用现代生态学中生态位的理论和方法 ,采用以Shannon -Wiener多样性指数为基础的生态位宽度指数和Pianka生态位重叠指数对唐家河自然保护区的啮齿类动物群落进行了研究。根据海拔高度和植被类型 ,将唐家河自然保护区的植被划分为 4个带 ,即山地常绿阔叶林带 (海拔 16 0 0m以下 )、常绿与落叶阔叶混交林带 (16 0 0～ 2 10 0m)、针阔叶混交林带 (2 10 0～ 2 4 0 0m)和亚高山针叶林 +亚高山灌丛草甸带 (2 4 0 0～ 36 0 0m)。发现唐家河自然保护区的 12种啮齿类动物中 ,高山姬鼠、龙姬鼠和大林姬鼠在 4个垂直植被带上的分布范围最宽。We analyzed the spatial niche breadth and spatial niche overlap among rodents in Tangjiahe Nature Reserve during summer, 2003. We defined 4 habitats according to the elevations and vegetation types: A. Evergreen-broadleaf forests (below (1 600 m)); B. Evergreen and deciduous broadleaf forests ((1 600)-2 000 m); C. Conifers and broadleaf mixed forests ((2 100)-(2 400 m)); D. Subalpine coniferous forests + subalpine bushes and meadows (2 400-3 600 m). The Hongshi River, Wenxian River, Shiqiao River, Xiaowan River and Caijiaba were selected to be the main investigated routes. A total of 204 rodents belonging to 12 species were captured in 5 120 trap-days. Apodemus chevrieri, A. draco and A. peninsulae were the most widely distributed in the reserve. We discussed the relationships between distribution and niche breadth, as well between competition and niche overlap among species.

关 键 词：空间生态位 林带 针阔叶混交林 群落 落叶 夏季 亚高山针叶林 唐家河自然保护区 啮齿类动物 生态位重叠 

分 类 号：Q958[生物学—动物学] Q948