川西平原农田啮齿动物群落动态:年间变动和季节变动

	川西平原农田啮齿动物群落动态:年间变动和季节变动
其他题名	DYNAMICSOF THE RODENT COMMUNITY IN CROPLAND OF THE WESTERN SICHUAN PLAIN :INTERANNUAL FLUCTUATIONS AND SEASONAL FLUCTUATIONS
	戴应贵 1; 杨跃敏 2; 蔡红霞 2; 曾宗永*2; 罗明澍 2; 梁俊书 2; 宋志明 2
	2001
发表期刊	兽类学报
ISSN	1000-1050
卷号	21 期号:1 页码:23-34
摘要	为了研究农田啮齿动物群落的动态规律，用标志重捕的方法给出了川西平原农田的啮齿动物群落的物种数、结合种群密度、生物量、物种多样性的Shannon指数与Simpson指数等5个变量的时间序列资料，并分析了这些时间序列的年间变动和季节变动的特点。结果表明：（1）5个变量总是处于不断的变化之中,特别是年间交替升降十分明显；（2）群落的全部8个物种从未同时出现过，同一个月最多有5个物种,最少只有1个物种；（3）5个变量季节变动的幅度均较大并各具有1至3个不等的明显的峰值，而年间变动的幅度则相对较小；（4）5个变量的最大值均出现在夏季，最小值则出现在春季、夏季或冬季；（5）5个变量的季节性均不强;（6）优势种大足鼠（Rattusnitidus）的种群密度分别与群落结合种群密度、生物量的年间变动和季节变动均具有相似的变动规律；此外，优势种大足鼠的种群密度、生物量分别占群落结合种群密度、生物量的比例均较高，而且这两个比例季节变动的幅度都较大而年间变动则较为稳定。
其他摘要	The time series of the 5 variables, including number of species, joint population density, biomass, Shannon index and Simpson index of species diversity of the rodent community , which was composed of 487 individuals of 8 species of 4 genera of Muridae in cropland of the Western Sichuan Plain from 1989 through 1995, are presented for studying the dynamics of the rodent community in the cropland by mark-recapture. Then, both interannual and seasonal fluctuations of the time series of these variables are analyzed and com- pared.Finally , the dynamics of the rodent community in the 7 years are summarized. The rodent community was concluded as the following:1)all of the 5 variables fluctuated interannually and seasonally during the 7 years;2)all of the 8 species of rodents never occurred in the rodent community in the same month, with the maximum of number of species 5 and the minimum 1;3)the seasonal fluctuations of the 5 variables were greater than their interannual fluctuations, respectively , peaked from 1 to 3 in a year; 4)each of the 5 variables had its maximum only in some summers during the 7 years, but had its minimum in some winters or springs and sometimes even in some summers;5) none of the 5 variables showed remarkable seasonality ;6) the seasonal fluctuations of the proportions of the population density and biomass of the domi- nant species (Rattusnitidus)respectively in the joint population density and biomassof the rodent community were greater than its interannual fluctuations, and both the interannual and seasonal fluctuations of the popula- tion density of the dominant species (Rattus nitidus)were much similar to those of joint population density and biomass of the rodent community .
部门归属	其他
关键词	川西平原啮齿动物群落动态物种数生物量物种多样性
资助者	国家自然科学基金!资助项目 (3880 5 89和 392 70 12 1) ; 国家自然科学基金!资助项目 (3880 5 89和 392 70 12 1)
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收录类别	其他
语种	中文
资助项目	川西平原农田啮齿动物群落动态:年间变动和季节变动
资助者	国家自然科学基金!资助项目 (3880 5 89和 392 70 12 1) ; 国家自然科学基金!资助项目 (3880 5 89和 392 70 12 1)
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/3767
专题	科研部门_系统进化与生物地理学（杨君兴）
作者单位	1.中国科学院昆明动物研究所,昆明650223 2.四川大学生物系,成都610064
推荐引用方式 GB/T 7714	戴应贵,杨跃敏,蔡红霞,等. 川西平原农田啮齿动物群落动态:年间变动和季节变动[J]. 兽类学报,2001,21(1):23-34.
APA	戴应贵.,杨跃敏.,蔡红霞.,曾宗永*.,罗明澍.,...&宋志明.(2001).川西平原农田啮齿动物群落动态:年间变动和季节变动.兽类学报,21(1),23-34.
MLA	戴应贵,et al."川西平原农田啮齿动物群落动态:年间变动和季节变动".兽类学报 21.1(2001):23-34.

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