Trombicula akamushi (Brumpt, 1910) 未吸着幼虫の日週活動について
スポンサーリンク
概要
- 論文の詳細を見る
In the summer of 1954, the observation on the diurnal rhythmic activity of the unattached larvae of Trombicula akamushi (Brumpt, 1910), the vector of Tsutsugamushi disease, was made in a certain wood along the Omono River in northwestern Honshu, Japan. The number of the mites crawled up on nine black bakelite-plates, which had been set on the ground surface two days before the observation, was counted every hour for 37 and 11 consecutive hours. Four counts were made in each hourly observation at intervals of five minutes. According to the results, the mite count was the highest at 3 : 00 or 4 : 00 P.M. and a less inconspicious increase was seen at 11.00 A.M. In the night time from 7 : 00 P.M. to 6 : 00 A.M., the mites seemed to be much less active than in the daytime. Such environmental factors as the air temperature and the relative humidity 2cm above the plate, the soil temperature 10cm beneath the soil surface and the light intensity on the plates were measured at each time of the counts. It was revealed that the number of the mites observed on the plates showed significant positive correlation to the soil temperature or the light intensity, and significant negative correlation to the relative humidity, but that between the number of the mites and the air temperature was not significant. Among the numbers of the mites in four counts at each observation, the first counts were usually the lowest, and was the highest the last counts. The difference between average numbers of the first and the second, and that between the second and the third were statistically significant, but that between the third and the fourth was not significant.
- 日本衛生動物学会の論文
- 1955-09-30
著者
関連論文
- 恙虫病々毒草原におけるハタネズミ・恙虫群集の生態学的研究 : その 2 恙虫出現頻度算定に対する野鼡個体群の影響(第 8 回大会講演要旨)
- 恙虫病の感染様式に関する研究 (6) : R. orientalis のアカツツガムシへの移行について (第 18 回大会講演要旨)
- 恙虫病々毒草原におけるハタネズミ・恙虫群集の生態学的研究 : その 1 野鼡個体群母数と罠密度効果(第 8 回大会講演要旨)
- 恙虫病毒地に棲息する野鼠個体群の生態学的研究(第 7 回大会講演要旨)
- 恙虫有毒地における恙虫の生態実驗成績(第 5 回大会講演要旨)
- Trombicula akamushi (Brumpt, 1910) 未吸着幼虫の日週活動について
- 恙虫幼虫の習性及び分布について(第 7 回大会講演要旨)
- 昭和 27 年度秋田縣恙虫有毒地の消毒実施成績(第 5 回大会講演要旨)
- 恙虫病有毒草原におけるハタネズミの盛夏個体群の研究(第 4 回大会講演要旨)
- 秋田縣下の恙虫の研究 (第 2 報) : 有毒地に隣接した山林の恙虫について(第 3 回大会講演要旨 II)
- 秋田縣下の恙虫の研究 (第 1 報) : 恙虫有毒地帶の恙虫の生態特に季節的消長について(第 3 回大会講演要旨 II)
- 各種ハエ幼虫のリンデンに対する感受性比較 : 薬剤によるハエ幼虫駆除に関する研究 第 7 報