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Ovipositional Stimulus Deprivation and its Effect on Lifetime Fecundity of Delia antiqua (Meigen) (Diptera: Anthomyiidae)

产卵刺激物的缺乏及其对葱蝇(双翅目:花蝇科)终生繁殖力的影响

关键词:
来源:
Environmental Entomology 期刊
全文链接1:
http://agri.ckcest.cn/topic/downloadFile/112cae03-c3fe-4e76-a388-a09180b01bdb
全文链接2:
https://academic.oup.com/ee/article-abstract/21/3/560/2394436?redirectedFrom=fulltext
类型:
学术文献
语种:
英语
原文发布日期:
1992-06-01
摘要:
Lifetime oviposition was measured for female Delia antiqua (Meigen) caged individually with cups of moist sand or surrogate onions possessing combinations of host-plant color and chemical stimuli. Females laid more eggs on surrogates than on sand and laid more eggs on surrogates coated with synthetic onion volatiles ( n -dipropyl disulfide, Pr2S2 )than on untreated surrogates. Surrogate color had no effect on fecundity. Flies deprived of exposure to Pr2S2 took longer to initiate oviposition and took longer to complete ovipositional cycles. The presence of untreated surrogates increased the percentage of eggs laid in ovipositional cups from 14 to 74%, whereas the presence of Pr2S2 or host-plant color resulted in nearly all eggs being laid in cups. The number of eggs retained at death did not differ among treatments. The results suggest that differential oviposition may have resulted from reduced rates of egg maturation as a consequence of accumulation of unlaid eggs. Host specialization by the onion fly is probably due to ecological factors as well as an ovipositional preference for onion.
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