蜂桶寨自然保护区小型地栖兽类丰富度和多样性海拔分布及与植被的关系  

The Richness and Diversified Elevation Patterns of Small Nonvolant Mammal in Fengtongzhai Nature Reserve and Its Correlation with Vegetation Factors

作　　者：韩菡 母华强 韦伟[1] 张泽钧[1] 胡锦矗[1] 周宏[1] 

机构地区：[1]西华师范大学西南野生动植物资源保护教育部重点实验室,四川南充637009 [2]广东珠海市第二中学,广东珠海519000

出　　处：《西华师范大学学报（自然科学版）》2017年第3期241-247,共7页Journal of China West Normal University(Natural Sciences)

基　　金：国家自然科学基金资助项目(31270570;31670530)

摘　　要：了解物种的海拔分布模式及其影响因素有利于生物多样性的保护与管理,这也受到了许多研究者的特别关注。四川宝兴县位于我国横断山脉中部,拥有丰富的生物多样性及我国众多的特有物种。我们于2008年3—11月对蜂桶寨国家级自然保护区内的地栖小型兽类的海拔分布及其与植被因子的关系展开了研究。总计捕获到23个物种,693个个体,其中有9个为中国特有种。物种丰富度和多样性在中度海拔(1 900~2 600 m)区域较高,与灌木密度和竹子盖度等植被因子关系密切。分析认为,中度海拔区域内丰富的竹子为许多小型地栖兽类提供了丰富的食物资源和良好的躲避天敌的场所,有利于保护和维持中国大部分特有物种的多样性,也证实了能有效地保护大熊猫等大型珍稀动物,同样也有益于本地区小型兽类多样性的保护。Knowledge of the species elevation patterns and its impact factors are conducive to the protection and management of biodiversity,which have been paid close attention to by many researchers. Baoxing county in Sichuan,located in the middle of the Hengduan Mountains,is rich in biodiversity and many endemic species. From April to December of 2008,a field survey had been conducted on the small nonvolant mammal in Baoxing's Fengtongzhai National Nature Reserve to examine its elevation distribution and its relationship with vegetation factors. A total of 23 species were captured,including 693 individuals and 9 endemic species. The species richness and diversity are higher in the middle altitude( 1900 m ~ 2600 m) areas that are closely related to the shrub density and bamboo cover. Analysis shows that,in moderate elevation area,abundant bamboos offer rich food resources and good escape places for many small nonvolant mammals. These bamboos are beneficial to the protection and maintenance of the biodiversity of many special species as well as the diversity of small mammals in the region. It is also confirmed that the abundant bamboos can provide effective protection to the giant panda and other large animals.

关 键 词：小型兽类 海拔梯度 物种丰富度 物种多样性 植被因子 

分 类 号：Q142[生物学—生态学]