【摘要】 采用陷阱诱捕法和网捕法于2016年7月-8月对宁夏温性草原13种不同草原型的甲虫种类和数量分布进行了调查,共获得甲虫标本1591号,分属于10科58种,其中直角通缘步甲Pterostichus gebleri(Dejean)、麻步甲Carabus brandti brandti Faldermann、短翅伪葬步甲Pseudotaphoxenus brevipennis Semenov、甘肃大步甲Carabus gansuensis gansuensis Semenov、暗星步甲Calosoma(Charmosta)lugens Chaudoir和蒙古伪葬步甲Pseudotaphoxenus mongolicus(Jedlicka)为优势种,个体数量分别占总个体数的23.69%、9.68%、9.05%、8.61%、8.30%和6.28%。在种类分布上,固原官厅乡三等长芒草Stipa bungeana Trin.型、同心郭大湾村二等大针茅S.grandis P.Smirn.长芒草型、同心张家塬乡四等大针茅长芒草型、彭阳罗洼乡三等百里香Thymus mongolicus Ronn长芒草型及彭阳孟塬乡四等铁杆蒿Artemisia sacrorum Ledeb.长芒草型等地种类和数量均较多;多样性分析表明,海原月亮山四等苔草Carex.spp.、杂类草Miscellaneous grass型集中性概率指数最大,同心张家山村二等大针茅长芒草型多样性指数和均匀性指数均最大,固原官厅乡三等长芒草型的丰富度指数最高;群落相似性分析显示,固原三营镇三等长芒草大针茅型与同心张家塬乡四等大针茅长芒草型、同心郭大湾村二等大针茅长芒草型相似性系数最高;昆虫对生境指示作用分析表明,胸圆高鳖甲Hypsosoma rotundicolle Fairmaire和弯齿琵甲Blaps(Blaps)femoralis femoralis(Fischer von Waldheim)分别可作为彭阳孟塬乡四等铁杆蒿长芒草型和海原嵩川乡三等苔草杂类草型的指示类群。更多还原

【Abstract】 The investigation on species and distribution of beetles were carried out using pitfall traps and netting in 13 types of temperate grassland in Ningxia from July to August in 2016. During the field research,in total of 1591 beetles were collected,belonging to 58 species of 10 families. Of these beetles,six species dominated, Pterostichus gebleri( Dejean), Carabus brandti brandti Faldermann,Pseudotaphoxenus brevipennis Semenov,Carabus gansuensis gansuensis Semenov,Calosoma( Charmosta)lugens Chaudoir and Pseudotaphoxenus mongolicus( Jedlicka) accounting for 23. 69%,9. 68%,9. 05%,8. 61%,8. 30% and 6. 28% of the total,respectively. There were more species and quantities in the third grade Stipa bungeana Trin. type of Guanting town of Guyuan city,the second grade Stipa grandis P. Smirn and Stipa bungeana type of Guodawan village of Tongxing county,the fourth grade S. grandis and S.bungeana type of Zhangjiayuan town of Tongxing county,the third grade Thymus mongolicaus and S.bungeana type of Luowa town of Pengyang county and the fourth grade Artemisia gmelinii and S. bungeana type of Mengyuan town of Pengyang county. Diversity analysis showed that concentration probability index of beetles was maximum in the fourth grade Carex spp. and miscellaneous grass type of moon mountain of Haiyuan county. The diversity and evenness indexes of beetles were the highest in the second grade S.grandis add S. bungeana type of Zhangjiashan village of Tongxing county. There were biggest richness index in the third grade S. bungeana type of Guanting town of Guyuan city. There were maximum similarity coefficient among the third S. bungeana and S. grandis type of Sanying town of Guyuan city,the fourth grade S. grandis and S. bungeana type of Zhangjiayuan town of Tongxing county and the second grade S.grandis and S. bungeana type of Guodawan village of Tongxing county. Using the indicator-value method to analysis species as an indicator of habitat,the results showed that Hypsosoma rotundicolle Fairmaire and Blaps( Blaps) femoralis femoralis( Fischer von Waldheim) were respectively indicators of the fourth grade A. gmelinii and S. bungeana type of Mengyuan town of Pengyang county and the third grade carex and miscellaneous grass type of Songchuan village of Haiyuan county.更多还原