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本文采用Lloyd提出的平均拥挤度M~*、聚集性指数M~*/M及Iwao的平均拥挤度与种群密度之间直线回归方程M~*=α+βM,用IBM计算机处理,分析了城市灭鼠达标后,连续18个月内残存鼠在住宅建筑物内的空间分布格局。结果观察到:①住宅建筑物间的残存小家鼠、褐家鼠、黄胸鼠的个体呈聚集分布;②三种残存家栖鼠都以个体群呈聚集型空间分布格局。根据目前残存鼠的空间分布格局及在时间序列上的平均密度,对正确制订灭鼠措施、选择投药位置、毒饵剂量与剂型,具有重要的参考价值。
In this paper, the linear regression equation M ~ * = α + βM between the mean crowding degree M ~ *, the aggregating index M ~ * / M and Iwao and the population density proposed by Lloyd is used. With IBM computer processing, Rodent compliance, the remaining 18 months in the residual structure of the spatial distribution of domestic buildings in the pattern. The results showed that: (1) The individuals of house-keeping Mus musculus, Rattus norvegicus and Rattus flavipectus gathered and distributed in residential buildings; (3) The three kinds of remnant domestic animals showed the pattern of aggregated space distribution in individual groups. According to the spatial distribution pattern of the remaining mice and the average density in the time series, it is of important reference value for correctly formulating the anti-rat measures, selecting the dosage site, dosage and dosage form of bait.