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Hyung Joo Yoon,InGyunPark,KyeongYongLee,MiAeKim,ByungRaeJin 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.10
The large bumblebee, Bombusterrestris, indigenous to Europe and adjacent area, and used extensively for high-value crop pollination, has been artificially introduced to several parts of the world. Here we show the interspecific hybridization between the bumblebee species, B.hypocrita sapporoensis and B.terrestris, under laboratory conditions. The mating and oviposition percentages resulting from the interspecific hybridization of a B.terrestris queen with a B. h. sapporoensis male were higher than those resulting from the intraspecific mating of B. h. sapporoensis. Furthermore, a competitive copulation experiment indicated that the mating of B. h. sapporoensis males with B.terrestris queens was 1.2-fold more frequent than the mating of these males with B. h. sapporoensis queens. The interspecific hybridization of a B.terrestris queen with a B. h. sapporoensis male produced either B.terrestris workers or the B.terrestris male phenotype, and the hybridization of a B. h. sapporoensis queen with a B.terrestris male produced B. h. sapporoensis males. Our results indicated that interspecific hybridization occurred between B. h. sapporoensis and B.terrestris. The results suggests that such hybridization will have a negative competitive impact and will cause genetic contamination of native bumblebees.
Effect of temperature on the development of the lesser mealworm, Alphitobius diaperinus
Seonghyun Kim,HaechulPark,IngyunPark 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
The developmental responses of insects to temperature are important considerations in gaining a better understandingof their ecology and life histories. Temperature dependent models permit examination of the effect of temperature onthe geographical distributions, population dynamics, and management of insects. The measurements of insect developmentaland survival responses to temperature pose practical challenges that depend. The developmental characteristics of A. diaperinuswere investigated at four temperature regimes (20, 25, 30 and 35℃), a relative humidity of 60%, and a light:dark photoperiodof 16:8h. The developmental time from larva to adult was 129.0, 49.8, 40.5 and 31.9 days at temperatures of 20, 25,30 and 35℃, respectively. Pupal rate was 80.0%, 100%, 83.3% and 91.7% at temperatures of 20, 25, 30 and 35 respectively.There is an increasing need for a standardized manual for rearing this. Pupa had significantly lower weights at 35℃than at the other temperatures. Female pupae (20mg) were significantly heavier than male pupae (17mg).