深圳梧桐山风景区昆虫资源调查及群落结构分析

2012年7月-2013年7月,对深圳梧桐山风景区昆虫资源进行系统调查,并对其群落结构进行分析。期间共采集昆虫标本2934号,鉴定出166种,隶属17目98科。通过对不同生境昆虫物种丰富度和多样性指数统计分析得出,亚热带常绿阔叶林昆虫物种多样性指数最高,为3.29;南亚热带常绿灌丛昆虫多样性指数最低,为1.88。各种生境昆虫物种多样性指数从大到小排列为:亚热带常绿阔叶林南亚热带针阔叶混交林南亚热带人工常绿阔叶林南亚热带常绿灌丛。不同生境昆虫群落相似性系数在0.0889-0.2690之间,随着植被构成和环境小气候的差别越大相似性系数越小,说明梧桐山风景区各个生境之间昆虫群落具有一定的独立性。通过对不同垂直地带昆虫物种多样性指数统计分析得出,海拔介于300-600 m地带昆虫物种多样性指数最高,为3.30,海拔900 m以上地带昆虫多样性指数最低,为1.06。不同垂直地带昆虫多样性指数从大到小排列顺序为:海拔300-600 m海拔600-900 m海拔100-300 m海拔900 m以上。

Investigation and analysis of community structure of insects in Wutongshan National Park, Shenzhen

During July, 2012 to July, 2013, about 2934 insects were collected in Wutongshan National Park, Shenzhen, and 166 species were identified, which belonged to 17 orders, 98 families. The insect species diversity index (H-value) of subtropical evergreen broad-leaved forest was the highest, 3.29, while the H-value of South subtropical evergreen shrub was the smallest, 1.88. The H-value of different habitats from high to low were, subtropical evergreen broad-leaved forest>South subtropical coniferous and broad-leaved mixed forest>South subtropical artificial evergreen broad-leaved forest>South subtropical evergreen shrub. The similarity coefficient was between 0.0889-0.2690, changed with the landscape structure and its environmental microclimate, which showed that there were some degree of independence of insect communities among these habitats. The relationship of insect species diversity with altitude were also analysed, the results showed that the insect species diversity index of altitude between 300-600 m was the highest, 3.30, while above 900 m was the lowest, 1.06. The insect diversity index in different altitude from high to low was, 300-600 m>600-900 m>100-300 m> above 900 m.