干旱区生态环境知识资源中心(Arid): 甘肃河西走廊不同生境中鼠类群落结构初步研究

Arid

	甘肃河西走廊不同生境中鼠类群落结构初步研究
其他题名	Diversity of rodents communities in different habitast in Hexi Corridor, Gansu Province
	宋延龄; 李俊生; 曾治高; 张津生
来源期刊	生物多样性
ISSN	1005-0094
出版年	2002
卷号	10 期号:4 页码:386-392
中文摘要	本文对河西走廊不同生境中鼠类群落的物种组成和多样怀进行了初步研究，在6种生境中进行了定量调查和采集，共获13种标本，隶于6（亚）科9属，其中古北界种类占优势。多样性分析结果表明：6种生境的物种丰富度指数R_(Margalef)在0.6139～1.9689之间，Shannon-Wiener指数（H~’）为1.0695～1.5607，Pielou指数（J~’）和Simpson指数（D）分别为0.7242～0.9735和0.2768～0.4683，不同生境的丰富种数量（N_1）变化趋势与H~’相似，而非常丰富种数量（N~2）的变化趋势为：半荒漠灌丛生境＞山地草原生境＞戈壁荒漠生境＞农田生境＞森林生境＞山地半荒漠灌丛生境。降水对不同生境类型中鼠类群落物种组成和多样性起直接的限制作用，同时海拔和人类干扰也是影响的因素。
英文摘要	Species diversity of rodents is a good index to analyze local environmental change, since rodents have not only the ability to adapt to a wide range of habitats but also are sensitive to environmental changes. In order to understand the influence of habitat types on rodent diversity, the species composition and diversity of rodent communities in six different habitats in Hexi Corridor were studied. Field work was carried out from July to August, 2001. rodents (< 200 g) were sampled with 2-dimensional grids in all habitats. Average distance between grids was 100 m. One hundred snap-traps were set for for two days in each sample line with 5 m spacing. A total of 5320 trap nights were operated in six habitats. Traps were baited in the afternoon with peanuts and were checked the next morning. Thirteen species of rodents among 354 individuals were collected, belonging to six families (or subfamilies) and nine genera. Species associated with palaercitic fauna dominated the community. The result of diversity analysis shows that the values of the species richness index R_(Margalef) for the six habitats ranged from 0.6139 to 1.9689, while the species diversity index (Shannon-Wiener index) ranged from 1.0695 to 1.5607, and Pielou and Simpson indices ranged from 0.7242 to 0.9735 and from 0.2768 to 0.4683, respectively. The tendency of diversity, including N_1 and the Shannon-Wiener index, was for similarity in all six habitats, while the tendency of N_2 was such that habitats of semi-desert brush > habitats of mountainous grassland > habitats of desert > habitats of cultivated fields > habitats of forest > habitats of semi-desert mountain brush. Precipitation was the major restricted factor that directly influenced species composition and diversity for the rodent community in these habitats. Latitude and human disturbance also affect species composition of the rodent community.
中文关键词	生境 ; 鼠类群落 ; alpha多样性 ; 河西走廊
英文关键词	habitats rodents community diversity Hexi Corridor Gansu Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:1045275
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203408
作者单位	中国科学院动物研究所, 北京 100080, 中国
推荐引用方式 GB/T 7714	宋延龄,李俊生,曾治高,等. 甘肃河西走廊不同生境中鼠类群落结构初步研究[J],2002,10(4):386-392.
APA	宋延龄,李俊生,曾治高,&张津生.(2002).甘肃河西走廊不同生境中鼠类群落结构初步研究.生物多样性,10(4),386-392.
MLA	宋延龄,et al."甘肃河西走廊不同生境中鼠类群落结构初步研究".生物多样性 10.4(2002):386-392.