摘要
2009年2月对广东韶关丹霞山风景区巴寨景点蚁狮Myrmeleon(Morter)sagax(Walker)种群进行了调查,采用了5种聚集度指标以及Taylor的幂法则与Iwao的m*-m直线回归方程进行计算和分析。结果表明:该地区蚁狮种群空间格局在局域斑块尺度属于均匀分布,种群密度越高分布越均匀。蚁狮种群的生境特点、捕食行为、种内竞争等可能对其种群密度及空间分布格局有重要影响。
The population of Myrmeleon（Morter） sagax（Walker） at Bazhai scenic spot in Danxia Mountain of Shaoguan City,Guangdong Province,was investigated in February,2009.Five aggregation indices,Iwao＇s way（regressive relationship with m＊ -m）,and power law of Taylor were used to evaluate the spatial distribution pattern of ant-lions.The results showed that ant-lions were spatially evenly in their distribution range.The higher population density,the more evenly distribution was observed.The evenly distribution pattern of antlions population might be caused by habitat condition,their prey behavior and intraspecific competition.
出处
《昆虫知识》
CAS
CSCD
北大核心
2010年第2期401-403,共3页
Entomological Knowledge
基金
韶关学院科研项目(2006213)
关键词
蚁狮
种群密度
空间分布格局
丹霞山
Myrmeleon（Morter） sagax
population density
distribution pattern
Danxia Mountain
