生态学杂志2024，Vol.43Issue(7)：2175-2181,7.DOI:10.13292/j.1000-4890.202407.037
瓜实蝇和南亚实蝇幼虫取食阶段的种间竞争
Interspecific competition between Zeugodacus cucurbitae and Zeugodacus tau during larval stage
摘要
Abstract
Exploring the interspecific competition between Zeugodacus cucurbitae and Z.tau in larval stage on Cucurbitae moschata provides reference for understanding population dynamic,development and succession of these two pests in the field.C.moschata was selected as the host,and inoculated with different densities of Z.cucurbitae and Z.tau.The growth and development parameters(such as pupal duration)were measured under laboratory con-ditions,and the correlation among the parameters was analyzed.The results showed that Z.cucurbitae and Z.tau had similar density effect caused by the interspecific competition.With the increases of population density,both Z.cucurbitae and Z.tau exhibited prolonged pupal duration,reduced pupal weight,and eclosion rate.The pupal dura-tion of Z.cucurbitae and Z.tau increased from 7.83 d and 8.01 d to 9.14 d and 9.31 d,while the eclosion rate decreased from 67.50％and 19.91％to 8.33％and 5.40％at each 60 larvae/10 g feed,respectively.There was a correlation among the growth parameters of Z.cucurbitae and Z.tau.Pupal duration was negatively correlated with other growth parameters.Pupal weight,eclosion rate,and sex ratio were positively correlated each other.With the increases of competition intensity,sex ratios of these two fruit fly species were decreased.The sex ratio of Z.tau was significantly positively correlated with pupal weight,but not for Z.cucurbitae.Z.cucurbitae had stronger anti-crowding ability and was more dominant in the interspecific competition with Z.tau when they coexisted on C.mos-chata.关键词
瓜实蝇/南亚实蝇/种间竞争/生长参数Key words
Zeugodacus cucurbitae/Zeugodacus tau/interspecific competition/growth parameter引用本文复制引用
李星星,闫振华,刘娜,陈思蓉,陈国华,陶玫,张金龙,张晓明..瓜实蝇和南亚实蝇幼虫取食阶段的种间竞争[J].生态学杂志,2024,43(7):2175-2181,7.基金项目
云南省重大科技专项(202102AE090006)、云南省中青年学术技术带头人后备人才项目(202105AC160071)、"云南省高层次人才培养支持计划"青年拔尖人才专项(YNWRNBJ2020291)和第十七批昆明市中青年学术和技术带头人后备人才项目(KMRCH2019023)资助. （202102AE090006）
