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本文作为仓虫群落生态的初步研究之二,考察了农户、粮店,粮食加工厂、饲料加工厂和国库等仓虫群落结构的数量特征。五种群落的种——多度曲线均服从 Pielou(1969)提出的负二项分布,且k>0。通过 Pielou(1969)提出的方法对各仓虫群落中由于抽样造成的遗漏仓虫进行了估计,即:农户有13种;粮店有4种,饲料加工厂有6种,粮食加工厂有4种,国库有4种被抽掉。用常见的 Shannon-wiener 信息论测度测定出五种仓虫群落的多样性(H′)、均匀度(J′)和丰富度(r)三个指标的综合序列是:农户>粮食加工厂>饲料加工厂>粮店>国库,且这些多样性(H′)与均匀度(J′)和丰富度(r)间有显著相关性,均匀度(J′)和丰富度间相关性不显著。就时间格局而言,在适宜仓虫繁殖、为害的5—10月内,农户、粮店、饲料加工厂等三种仓虫群落的多样性(H′)、均匀度(J′)和丰富度(r)三个指标都有随时间序列的推进、气温的上升而上升的趋势。但是,由于粮堆生态系统是一个人为的不稳定的系统,储粮流动性很大,这三个指标并非完全随时间延续而持续增加,而是出现一些不规则的波动。
This paper, as the second study of the habitat ecology of Cercopithea angustifolia, investigated the quantitative characteristics of the cercopithecidae community structures such as farmers, grain stores, food processing plants, feed processing plants and the State Treasury. The species-abundance curves of the five communities follow the negative binomial distribution proposed by Pielou (1969) with k> 0. By means of the method proposed by Pielou (1969), the species of omnivorous insects caused by sampling were estimated for each species of pollinator: 13 farms, 4 farms, 6 feed processing plants and 4 food processing plants Four species of treasury have been withdrawn. Using the common Shannon-wiener information theory measure, the comprehensive sequence of three indicators of diversity (H ’), evenness (J’) and richness (r) Processing plant> grain store> national treasury, and there is no significant correlation between these diversity (H ’) and evenness (J’) and richness (r), evenness (J ’) and richness. In terms of time pattern, the diversity (H ’), evenness (J’) and abundance of the three species of cercopithecidae farmers, grain stores, feed processing plants, Degree (r) three indicators have with the time series of progress, the temperature rising and rising trend. However, as the grain-piled ecosystem is an artificially unstable system and the grain reserves are highly liquid, the three indicators have not been continuously increased over time but have some irregular fluctuations.