【作者】 张茂新； 梁广文；

【Author】 Zhang Mao xin Liang Guang wen (Lab.of Insect Ecology, South China Agricultural University, Guangdong Guangzhou, 510642)

【机构】 华南农业大学昆虫生态研究室；

【摘要】 黄曲条跳甲幼虫在菜田的空间分布型为聚集分布,符合负二项分布。聚集原因是黄曲条跳甲本身行为和环境因素综合影响的结果。通过Taylor指数回归参数确定了在一定精确度水平下的理论抽样数。更多还原

【Abstract】 The spatial distribution pattern of the larvae of Phllotrata striolata (F.) was of the aggregate pattern and fitted with the negative binomial distribution.The aggregation was caused by the behaviors of this beetle and the environmental factors.The sample size requirements at fixed precision levels were determined using Taylor’ s power law regression.更多还原