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| 城市绿地昆虫群落结构及多样性——以成都市为例 |
| Insect community structure and diversity in urban green space: A case study in Chengdu |
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| DOI： |
| 中文关键词: 城市生态系统 功能团 物种多样性 生态位 稳定性 |
| 英文关键词:Urban ecosystem functional group species diversity ecological niche stability |
| 基金项目:四川农业大学双支计划（03572999） |
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| 中文摘要: |
| 为研究成都城市绿地昆虫群落功能团结构及其多样性的变化，于2020年6-10月，采用扫网、网捕、搜寻、目测和振落等方法对成都3种功能绿地（公园绿地、生产绿地和道路绿地）昆虫进行调查。调查共采集昆虫29 382号，隶属15目130科747种。其中半翅目Hemiptera、膜翅目Hymenoptera、双翅目Diptera在3种功能绿地中均属于优势类群；在不同功能绿地，植食性昆虫的丰富度总体高于寄生性、捕食性和中性昆虫；不同功能集团在各功能绿地的α多样性指数均无显著差异，植食性-捕食性昆虫（Ph-Pr）、植食性-寄生性（Ph-Pa）昆虫个体数在生产绿地中呈显著正相关（P<0.05），公园绿地和生产绿地昆虫群落结构最为相似；Ss/Si和Sn/Sp两个稳定性指标表明：3种生境昆虫群落最稳定的时期是9月。结果表明，成都城市绿地昆虫物种多样性较为丰富，3种绿地昆虫群落组成较相似，各绿地间功能团结构特征无显著差异；各绿地功能团丰富度时序变化趋势基本一致，9月是成都市绿地昆虫群落结构最稳定的时期。 |
| 英文摘要: |
| In order to study the changes of the functional group structure and diversity of insect communities in Urban Greenfields, Chengdu. From June to October 2020, three functional green spaces(park green space, production green space and road green space) insects in Chengdu were investigated by means of sweeping, net trapping, searching, visual inspection and vibration. A total of 29 382 insects were collected in the survey, belonging to 15 orders, 130 families and 747 species. Among them, Hemiptera, Hymenoptera and Diptera belong to the advantage group in 3 functional green spaces. In different functional green spaces, the richness of Phytophagous insects was generally higher than that of parasitic, predatory and neutral insects. There was no significant difference in the α diversity index of different functional green spaces, and the number of individual Phytophagous-predatory insects(Ph-Pr), Phytophagous-parasitic insects(Ph-Pa) insects showed significant positive correlation in the production green space(P<0.05), and the structure of park green space and production green space insect community was most similar; Two stability indicators, Ss/Si and Sn/Sp, indicated that the most stable period for the three habitat insect communities was September. Chengdu urban green space insect species diversity was more abundant, three kinds of green space insect community composition was more similar, there was no significant difference in the structure characteristics of functional groups between green space; The trend of time series change of the richness of each green space functional group was basically the same, and September was the most stable period of insect community structure in Chengdu green space. |
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