著者

平岩 馨邦 三宅 貞祥 南 学

出版者

九州大学

雑誌

九州大學農學部學藝雜誌 (ISSN:03686264)

巻号頁・発行日

vol.14, no.3, pp.455-459, 1954-03

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Northern Kyushu was caught in heavy rains, rivers around overflowed and their catchment areas met unparalleled flood in the end of June, 1953. In August we went to Onga Village, Hinashiro Village and Zend6ji Town, in which the damages were most tremendous, along the Onga and Chikugo rivers in Fukuoka Prefecture, and investigated the effects of the flood on the habitations of the domestic rats, Norway rat Rattus norvegicus, and house rat Rattus rattus, in those areas. Norway rats were captured in Togo Town of unflooded area and in the higher and dried part of Nakabaru Village of flooded area but in the above mentioned villages and town in which water came over several metres, only house rats were got, Norway rats being never met. Therefore it seems that in the flooded areas the Norway rats decreased exceedingly in number, having been drifted or drowned, as the water invaded their dwelling places of ground level, though the house rats survived, escaping to the higher places in the house such as rafters of the ceiling. The peasants observed that abundant individuals of rats were drifted and arrived, being alive or dead, to the foot of the hill situated down the Onga river. Most of them are considered to be Norway rats. Hinashiro Village and. Zendoji Town along the Chikugo river are used to be flooded almost annually in summer, so the Norway rats, living in ground level, are thought to be very few in number or to be lacking absolutely, because they can not dwell habitually in such area.昭和28年6月25日より数日間降り続いた豪雨の為, 北九州特に福岡・熊本両県下に於ける遠賀川・筑後川・矢部川・菊池川・白川の諸河川は氾濫し, その流域地方は未曾有の大洪水に襲われ各方面に甚大な災害を蒙つた. その直後九州大学に於いてはその災害の綜合調査を企画し, 学内の関係諸教室は夫々の専門分野の調査研究に従つた. われわれは動物に関係する部門を分担し, 8月の初旬及び中旬に福岡県下の主として遠賀川・筑後川の流域に於ける水害現場に赴いて調査を行つたが, その内洪水の住家性鼠類に及ぼした影響に関するものをここに報告する.