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白蜡窄吉丁幼虫及其天敌在空间格局上的关系

王小艺 杨忠岐   

  1. 中国林业科学研究院森林生态环境与保护研究所 国家林业局森林保护学重点实验室, 北京 100091
  • 收稿日期:2004-12-27 修回日期:2005-04-01 出版日期:2005-08-18

Spatial pattern relationships between emerald ash borer larvae and their natural enemies

WANG Xiaoyi,YANG Zhongqi   

  1. Key Laboratory of Forest Protection of State Forestry Administration,Research Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry,Beijing 100091, China

  • Received:2004-12-27 Revised:2005-04-01 Online:2005-08-18

摘要: 调查了白蜡窄吉丁幼虫与其寄生性天敌白蜡吉丁柄腹茧蜂和捕食性天敌啄木鸟啄食白蜡窄吉丁的啄痕在空间格局上的规律.结果表明,在林间水平方向上,白蜡窄吉丁幼虫呈聚集分布,白蜡吉丁柄腹茧蜂和啄木鸟的啄痕也表现为聚集分布;在垂直方向上,白蜡窄吉丁幼虫分布于地面至3.37 m以下的树干,主要集中于1.50 m左右的主干,天敌也集中在此范围内活动.

关键词: 红树林, 土壤, 粒径分布, 分形维数

Abstract: The investigation on the spatial patterns of emerald ash borer (EAB) larvae, parasitoid Spathius agrili,and EAB?preying woodpecker pecks in ash forests showed that in horizontal direction,EAB larvae,parasitoid S.agriliand woodpecker pecks were in negative binomial distribution,while in vertical direction,EAB larvae were distributed on ash trunks from above ground to 3.37 m in height,with a peak around the 1.50 m.Their natural enemies also favored this range.

Key words: Mangroves, Soil, Particle size distribution, Fractal dimension