台湾産 Culex vishnui と台湾および沖繩本島産コガタアカイエカ Cx. tritaeniorhynchus の生態の性質の比較

概要

論文の詳細を見る
Despite the reports that northern part of Taiwan is the known northernmost limit of distribution range of Culex vishnui, it was more abundant than Cx. tritaeniorhynchus in northern Taiwan. Furthermore, the average temperature in every month of the year in Taipei, Taiwan is nearly equal with that in Naha, Okinawa island. Taiwan strain of Cx. vishnui and Taiwan and Okinawa strains of Cx. tritaeniorhynchus were compared as to some ecological characters under the laboratory conditions. In oviposition preference no clear discrimination was made by Cx. vishnui between tap water and artificial food suspension. The gravid females of Cx. tritaeniorhynchus were reluctant to choose the food suspension when the amount of food in 200ml tap water was over 0.01g in Taiwan strain and 0.1g in Okinawa strain. This difference in oviposition preference may be in some way related to the difference in population level between both species. Duration of larval growth was longer in Cx. vishnui than in Cx. tritaeniorhynchus at temperatures between 20 and 33℃. At 20℃ pupation rate tended to be lower in Cx. vishnui than in Cx. tritaeniorhynchus. It seemed that Cx. vishnui is less adaptable to low temperatures than Cx. tritaeniorhynchus.
日本衛生動物学会の論文
1983-12-15