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Title: チカイエカとネッタイイエカの産卵と卵の孵化に及ぼす温度の影響
Other Titles: Effects of Temperatures on the Oviposition and Hatching of Eggs in Culex pipiens molestus and Culex pipiens quinquefasciatus
Authors: 小田, 力 / 森, 章夫 / 上田, 正勝 / 黒川, 憲次
Authors (alternative): Oda, Tsutomu / Mori, Akio / Ueda, Masakatu / Kurokawa, Kenji
Issue Date: 30-Oct-1980
Publisher: 長崎大学熱帯医学研究所 / Institute of Tropical Medicine, Nagasaki University
Citation: 熱帯医学 Tropical medicine 22(3). p167-172, 1980
Abstract: 我国においてアカイエカ群の一員であるチカイエカは鹿児島以北に分布しているが,沖繩のようなより南の地方では未だ発見されておらず,そこには同じアカイエカ群のもう一つの構成員であるネッタイイエカが棲息している.チカイエカの分布要因を明らかにするための研究の一環として,これらの蚊について1令幼虫から種々の温度下で飼育羽化させた雌に産卵させて,産卵雌率と受精した雌から生まれた卵の孵化率を調べた.チカイエカでは温度が30℃の高温になると,無吸血状態の雌の産卵率が低下し,卵の孵化率も著しく減少した.これに対してネッタイイエカの場合は30℃下でも吸血した雌は高率に産卵し,卵の孵化率も高かった.したがって高温はチカイエカの沖繩のような南の地方への侵入を抑制する要因の一つとなりうると思われる. / In Japan, the mosquito of Culex pipiens molestus, a member of Culex pipiens complex, distributes in parts of Japan lying the northern part of Kagoshima, but not in the more southern parts such as Okinawa. However, in the latter parts there is the mosquito of Cx. p. quinquefasciatus, another member of the same complex as Cx. p. molestus. To make clear the factors limiting the distribution of Cx. p. molestus in Japan, oviposition and hatching of eggs were examined with the females of Cx. p. molestus and Cx. p. quinquefasciatus which had been bred from the 1st instar larvae at various temperatures. In Cx. p. molestus, oviposition rate of autogenous females at the high temperature of 30 C was not high, and hatching rate of eggs was very low, but in Cx. p. quinquefasciatus, oviposition rate of fed females was high and hatching rate was also high even at 30 C. Therefore, high temperature seems to be one of the factors inhibiting the mosquito of Cx. p. molestus to invade the southern parts of Japan.
URI: http://hdl.handle.net/10069/4284
ISSN: 03855643
Type: Departmental Bulletin Paper
Appears in Collections:Volume 22, No. 3

Citable URI : http://hdl.handle.net/10069/4284

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