摘要
本文在测定油松毛虫越冬幼虫静态空间格局及其抽样技术研究的基础上,为了进一步揭示越冬幼虫在上树时序过程中扩散或聚集的变化趋势,本研究从越冬幼虫上树开始到结束,随着幼虫由树下逐渐向树上转移,分别以株为单元,轮为单元和枝为单元进行了3种抽样的调查,通过测定其种群聚集度指标,根据Mont Lloyd(1967)给出的判断法,并在此基础上应用谐波分析法来研究越冬幼虫种群与其环境之间所表现的种的特性反应和行为。
Trend of dispersion or aggregation of Hibernating larvae of Chinese-pine caterpillar was enuncited by measuring indices of aggregation from the beginning to the end through up the tree, the indices of aggregation were obtained by tree sampling, ring sampling and branch sampling. Then, the changing trend of dispersion or aggregation can be traited using Lloyd's method (1967) and harmonic analysis.
出处
《生态学报》
CAS
CSCD
北大核心
1992年第1期32-39,共8页
Acta Ecologica Sinica
关键词
油松毛虫
扩散
聚集
越冬幼虫
Chinese-pine caterpillar, the process of Hibernating larvae through up the tree, dispersion, aggregation, Lloyd's method, harmonic analysis.
