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Geostatistical analysis on spatial patterns of Erythroneura sudra and Erigonidium graminicola
Author(s): 
Pages: 1645-1648
Year: Issue:  12
Journal: CHINESE JOURNAL OF APPLIED ECOLOGY

Keyword:  桃一点叶蝉草间小黑蛛空间格局地学统计学;
Abstract: 应用地学统计学的原理和方法研究了不同时期桃一点叶蝉及草间小黑蛛种群的空间结构和空间相关性.结果表明,不同时期桃一点叶蝉种群的半变异函数曲线皆为球型,其空间格局为聚集型,变程在25.71~37.14m之间,草间小黑蛛种群的拟合半变异函数也表现为球型,呈聚集空间格局,空间变程在25.12~44.06m之间,并与桃一点叶蝉种群在数量和空间上有较强的追随关系,说明草间小黑蛛种群是桃一点叶蝉种群的优势种天敌.
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