瓜实蝇和南亚实蝇幼虫取食阶段的种间竞争

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国家科技期刊平台
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中文摘要：探明瓜实蝇(Zeugodacus cucurbitae)和南亚实蝇(Z。tau)在南瓜上的幼虫取食阶段的种间竞争，可以为田间两种实蝇的种群动态、发展演替提供参考。在实验室条件下，选用南瓜为寄主，接种不同密度的瓜实蝇和南亚实蝇，测定蛹历期等生长发育参数，并进行各参数间的相关性分析。结果表明:瓜实蝇和南亚实蝇的种间竞争导致的密度效应具有相似性，主要表现为随着种群密度的上升，两种实蝇蛹历期延长、蛹重下降和羽化率降低;在各60头·10 g-1饲料时瓜实蝇和南亚实蝇的蛹历期分别从7。83 d和8。01 d延长至9。14 d和9。31 d，而羽化率则分别从67。50％和19。91％降低至8。33％和5。40％;瓜实蝇和南亚实蝇各自的生长参数间存在相关性:蛹历期和其余生长参数呈负相关，蛹重、羽化率、性比3种生长参数间均为正相关。随着竞争强度的升高，两种实蝇的性比均下降。南亚实蝇的性比与蛹重呈显著正相关，而瓜实蝇的性比与蛹重无显著相关性。瓜实蝇和南亚实蝇在南瓜上同时发生时，瓜实蝇的抗拥挤能力更强，在种间竞争中更占优势。

外文标题：Interspecific competition between Zeugodacus cucurbitae and Zeugodacus tau during larval stage

外文摘要：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.

外文关键词：

Zeugodacus cucurbitaeZeugodacus tauinterspecific competitiongrowth parameter

作者：

李星星、闫振华、刘娜、陈思蓉、陈国华、陶玫、张金龙、张晓明

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作者单位：

云南农业大学植物保护学院,云南生物资源保护与利用国家重点实验室,昆明 650201

红河学院发展规划中心,云南蒙自 661199

红河学院生物科学与农学学院,云南蒙自 661199

关键词：

瓜实蝇南亚实蝇种间竞争生长参数

基金：

云南省重大科技专项云南省中青年学术技术带头人后备人才项目云南省高层次人才培养支持计划青年拔尖人才专项第十七批昆明市中青年学术和技术带头人后备人才项目

项目编号：

202102AE090006202105AC160071YNWRNBJ2020291KMRCH2019023

出版年：

2024

DOI：

10.13292/j.1000-4890.202407.037

生态学杂志

中国生态学学会

生态学杂志

CSTPCD北大核心

影响因子：1.439

ISSN：1000-4890

年,卷(期)：2024.43(7)