文献类型：期刊文献

中文题名：松褐天牛肿腿蜂雄蜂的交配策略

英文题名：Mating Strategy of Sclerodermus alternatusi Yang(Hymenoptera:Bethylidae)Male

作者：唐艳龙[1] 王丽娜[1] 康奎[1] 王小艺[2] 张彦龙[2] 魏可[2]

第一作者：唐艳龙

机构：[1]遵义师范学院生物与农业科技学院,遵义563002;[2]中国林业科学研究院森林生态环境与自然保护研究所/国家林业和草原局森林保护学重点实验室,北京100091

年份：2025

卷号：41

期号：5

起止页码：1249-1255

中文期刊名：中国生物防治学报

外文期刊名：Chinese Journal of Biological Control

收录：;北大核心:【北大核心2023】；

基金：中国林业科学研究院基本科研业务费(CAFYBB2024MA017);贵州省教育厅青年拔尖人才项目(QJJ-2024-343);贵州省教育厅创新群体项目(黔教合人次KY字[2020]026);遵义市科技计划项目(遵市科合HZ字2025-157号)。

语种：中文

中文关键词：松褐天牛肿腿蜂;寄生蜂;子代数量;雄性比例;交配策略

外文关键词：Sclerodermus alternatusi;parasitoid;brood size;male offspring rate;mating strategy

分类号：S476.3

摘要：松褐天牛肿腿蜂属典型性别偏雌类型的寄生蜂,为研究其生殖策略,本文初步研究了松褐天牛肿腿蜂雄蜂的交配能力。结果表明,15:1,30:1,60:1和90:1等4个雌雄蜂交配比例下,松褐天牛肿腿蜂的寄生成功率均大于95%,其雌蜂的产卵前期差异较小,平均在8.3 d左右,其子代的卵历期、幼虫历期、蛹历期和卵-蛹历期均无显著差异。其子代雌蜂数、雄蜂数均差异显著,15:1时,其子代雌蜂数最多,平均达46.09头/寄主,另外3个比例下减少约1/3。15:1时,子代雄蜂数最少,平均仅2.47头/寄主,另外3个比例下显著增加至约15头/寄主。其子代总数差异不显著。其子代雄性比例差异显著,15:1时最低,平均为5.07%,另外3个比例下,显著增加至30%~40%。15:1时,96.55%的处理子代雄性比例低于10%,另外3个比例下,多数处理的子代雄性比例高于20%。研究结果表明,松褐天牛肿腿蜂雄蜂能充分满足雌蜂精子需求的数量在15头左右,此外,雌雄比大于30:1时,大多数雌蜂仍能产出雌蜂后代,表明雄蜂的生殖策略为与更多的雌蜂交配,而不是仅满足少数雌蜂,但雄蜂提供给雌蜂的精子数量有限,导致雌蜂产下较多未受精卵,其雄性比例大幅上升。
Reproductive strategy of Sclerodermus alternatusi Yang,a parasitic wasp with a typical female-biased sex ratio,was investigated,focusing on the mating capacity of male wasps.The results showed that under four female-to-male ratios(15:1,30:1,60:1,and 90:1),the parasitism rate of S.alternatus all exceeded 95%.The pre-oviposition period of females showed little variation,averaging around 8.3 days.There were no significant differences in the egg duration,larval duration,pupal duration,or egg-to-pupal duration of the offspring.However,the number of female and male offspring varied significantly.At the 15:1 ratio,the number of female offspring was the highest,averaging 46.09 per host,while at the other three ratios,the female number decreased by about one-third.At the 15:1 ratio,the number of male offspring was the lowest,averaging only 2.47 per host,whereas it significantly increased to around 15 per host under the other three ratios.The total number of offspring did not vary significantly between the female-to-male ratios.The male offspring ratio showed significant differences,being lowest at 15:1(average of 5.07%)and significantly increasing to 30%—40% in the other three ratios.At the 15:1 ratio,96.55% of cases had a male offspring ratio below 10%,whereas under the other three ratios,most cases had a male offspring ratio above 20%.The study suggests that male S.alternatus can meet the sperm demand of approximately 15 females.Moreover,even at a female-to-male ratio exceeding 30:1,most females were still able to produce female offspring,indicating that the reproductive strategy of male wasps is to mate with as many females as possible rather than focusing on a few.However,the limited sperm provided by males resulted in a higher proportion of unfertilized eggs,leading to a significant increase in the male offspring ratio.