摘要
吸虫法是稻田节肢动物群落调查的主流方法,但随着大规模调查取样需求的日益增加,便捷性逐渐成为选择调查取样方法时的重要考量因素,因此不少研究者开始倾向于使用扫网法。然而,关于扫网法与吸虫法在调查效果上的直接比较尚未见报道。研究基于江汉平原稻区多年的调查取样资料(2018、2019、2020年),对这2种调查取样方法在采集偏好、采集效率以及对节肢动物群落组成和关键类群变化的敏感性方面进行了比较,旨在为农业生物多样性以及昆虫生态学相关研究提供调查取样方法的参考依据。研究结果显示,这两种调查取样方法在体型大小、迁移能力和垂直分布3种功能性状上的采集效果并无显著性差异,所采集的常见科节肢动物群落高度相似。由于扫网法取样面积更大,它能更全面地反映物种丰富度(P<0.05)。此外,尽管两种方法在反映节肢动物群落特征指数和关键类群(如寄生蜂、蜘蛛和稻飞虱)丰度的变化趋势上保持一致,但在进一步将蜘蛛细分为游猎型与结网型时,两者所呈现的丰度时间变化趋势出现了差异(P<0.05)。具体来说,在整个调查期内,利用吸虫法获得的2种类型蜘蛛的丰度呈现递减趋势,而扫网法则表现出先降后升的动态,其转折点出现在孕穗期。综上所述,扫网法能够全面且准确地反映稻田节肢动物群落的真实情况,特别是在进行大规模稻田节肢动物群落的调查时,扫网法相较于吸虫法展现出了更高的适用性。
Although suction sampling is the primary method for investigating arthropod communities in rice fields,the convenience of methods has gradually become an increasingly important factor to consider when choosing survey sampling methods in response to the growing demand for large-scale surveys and sampling.Consequently,a growing number of researchers have begun to prefer using the sweeping method.Nevertheless,there is a lack of research that directly compares the effectiveness of sweep netting and suction methods in investigations.In order to establish a reference for sampling methods in research on agricultural biodiversity and insect ecology,this article compared two survey methods using sampling data from the Jianghan Plain rice region over three consecutive years(2018-2020).The comparison focused on collection preferences for functional traits,collection efficiency of endemic species,and various parameters and dynamic changes reflecting community diversity.The results showed that there was no difference in the collection preferences of the two methods for three functional traits:body size,migration ability,and vertical distribution.The compositions of common classes in the arthropod communities collected by the two sampling methods were highly similar.The larger sampling area of the sweep netting method allowed for a more comprehensive representation of species richness(P<0.05).Although the two methods demonstrated consistent reflection of arthropod community indices and the abundance trends of key groups(such as parasitic wasps,spiders,and rice planthoppers),there were significant differences in the temporal trends of abundance between the two when further dividing spiders into hunting and web-forming types(P<0.05).The abundance of the two types of spiders obtained through the suction sampling method showed a consistent decline throughout the survey period.In contrast,the sweep netting method exhibited a fluctuating pattern,initially declining and then increasing,with a turning point observed at the booting stage.In conclusion,the sweep netting method is a comprehensive and accurate survey sampling method for the study of the arthropod community in rice fields.It is particularly advantageous in comparison to the suction sampling method in the context of large-scale investigations of arthropod communities in rice fields.
作者
谢美琦
朱宏远
杨长举
韩可洪
余玖坤
关现军
沈栎阳
徐成梨
陆泽玮
刘畅
何贝贝
蒲雷
华红霞
蔡万伦
XIE Meiqi;ZHU Hongyuan;YANG Changju;HAN Kehong;YU Jiukun;GUAN Xianjun;SHEN Liyang;XU Chengli;LU Zewei;LIU Chang;HE Beibei;PU Lei;HUA Hongxia;CAI Wanlun(College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)
出处
《生态学报》
北大核心
2025年第2期644-652,共9页
Acta Ecologica Sinica
基金
湖北洪山实验室重大项目(2021hszd002)
粮食丰产增效与科技创新(2017YFD0301403)
2024湖北省粮食单产提升专项,粮食作物虫害绿色防控技术集成与应用(2662024YJ018)。
关键词
稻田节肢动物群落
扫网法
吸虫法
生物多样性
江汉平原
arthropod community
sweep netting sampling
suction sampling
biodiversity
Jianghan Plain
