• Title/Summary/Keyword: Mosquitoes

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Two Unreported Anopheline Mosquitoes in Korea (韓國産 Anopheles 모기 未記錄種 二種에 관하여)

  • Hong, Han-Ki;Ree, Han-Il
    • The Korean Journal of Zoology
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    • v.11 no.4
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    • pp.118-120
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    • 1968
  • 韓國産 Anopheles 屬 모기는 4種이 現在까지 報告 되었으나 1961年 慶北 安東郡 禮安面에서 A. lindesayi japonicus 와 1964年 全北 沃溝郡에서 처음 A, yatsushiroensis를 發見함을로써 6種의 Anopheles 屬 모기가 記錄되었다. A. lindesayi japonicus는 安東, 榮州와 京畿道 楊平에 分布 되었으며 A, yatsushiroensis는 全北의 沃溝, 金提, 井邑, 충남의 牙山, 京畿道 楊平, 高陽, 경북의 榮州, 安東, 靑松等地에서 採集되는 廣範圍하게 分布되어 있는 一般的인 種類이다. 새로 報告되는 2種의 成蟲암모기의 外部形態와 韓國産 Anopheles의 檢索表를 記錄하였다.

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Prediction of Mosquitoes using Climate Data based on Machine Learning (머신러닝 기반 기후 데이터를 활용한 모기 개체 수 예측)

  • Hwang, Se-Young;Cha, Ye-Bin;Cha, Hyung-Bin;Koh, JinGwang
    • Proceedings of the Korea Information Processing Society Conference
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    • 2020.11a
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    • pp.1031-1033
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    • 2020
  • 최근 지구온난화에 따른 기온 및 강수량 증가 등으로 인해 모기 개체 수가 증가함에 따라 말라리아, 일본뇌염, 뎅기열 등 모기를 통해 전파되는 질병에 감염병의 위험률도 높아지고 있어 머신러닝기반 기후 데이터를 활용하여 모기 개체 수를 예측할 수 있는 모델을 제안하였다.

Mosquito Species Composition and Plasmodium vivax Infection Rates on Baengnyeong-do (Island), Republic of Korea

  • Foley, Desmond H.;Klein, Terry A.;Lee, In-Yong;Kim, Myung-Soon;Wilkerson, Richard C.;Harrison, Genelle;Rueda, Leopoldo M.;Kim, Heung-Chul
    • Parasites, Hosts and Diseases
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    • v.49 no.3
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    • pp.313-316
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    • 2011
  • Vivax malaria is a significant military and civilian health threat in the north of the Republic of Korea (ROK). The island of Baengnyeong-do is the westernmost point of the ROK and is located close to the southwestern coast of the Democratic People's Republic of Korea (DPRK). Mosquitoes were collected using a black light trap on Baengnyeong-do, and Anopheles spp. were assayed by PCR, to identify the species, and screened for sporozoites of Plasmodium vivax. Of a subsample of 257 mosquitoes, Anopheles lesteri was the most frequently collected (49.8%), followed by Anopheles sinensis (22.6%), Anopheles pullus (18.7%), Anopheles kleini (7.8%), and Anopheles belenrae (1.2%). The overall sporozoite rate was 3.1%, with the highest rates observed in An. kleini (15.0%), An. sinensis (5.2%), and An. lesteri (1.6%). No sporozoite positive An. pullus or An. belenrae were observed. The results extend our knowledge of the distribution and potential role in malaria transmission of An. kleini, An. lesteri, and An. sinensis, for an area previously considered to be at a low risk for contracting vivax malaria.

Seasonal Prevalence of Mosquitoes Collected with Light Trap - At a Pig Shed in the Vicinity of Daegu City, Korea- (誘蚊燈에 捕獲된 모기類의 季節的 發生消長: 大邱市隣近 한 豚舍를 對象으로)

  • 孫錫洛
    • The Korean Journal of Zoology
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    • v.27 no.2
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    • pp.117-125
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    • 1984
  • Mosquitoes were collected with light trap at a pig shed in the vicinity of Daegu city from mid-April to the end of November in 1981 and 1982. A total of 12,942 and 118,061 individuals were collected in 1981 and 1982 respectively. The collection comprised 77% females and 23% males in 1981, and 96% females and 4% males in 1982. The catches were classified into following 7 species: Culex (Culex) pipiens pallens, C. (C.) tritaeniorhynchus summorosus, Anopheles (Anopheles) sinensis, C. (C.) vagans, C. (C.) oritntelis, C. (C.) bitaeniorhynchus, Aedes (Aedimorphus) vexans nipponii. The former three species showed distinct seasonal prevalence. Arranged in the descending order in size of the catches, in 1981, Culex (Culex) pipiens pallens was 44.9% of the total collection (at sex ratio of 0.85), Anopheles (Anopheles) sinensis 42.9% (0.05), Culex (Culex) tritaeniorhynchus summorosus 12.1% (0.00). On the contrary, Culex (Culex) tritaeniorhynchus summorosus 70.4% (0.00), Anopheles (Anopheles) sinensis 25.2% (0.05), Culex (Culex) pipiens pallens 4.4% (2.19) in 1982. The monthly percentages of collected mosquitoes to the total collection were 0.1% (in 1981) and 0.0% (in 1982) in May; 3.5%, 1.3% in June; 50.0%, 33.9% in July; 37.1%, in August; 8.8%, 11.9% in September; 0.5%, 0.8% in October and 0.0% in November. As for seasonal prevalence, mosquitoes appeared in May in both years and began to increase in number from the first week of June in 1981, but from the second week of May, ahead of three weeks in 1982. The highest peak time in 1982 was the second week of August, two weeks later than the fifth week of July in 1981. Culex (Culex) pipiens pallens showed the maximum activity for the fifth week of July in 1981, but for the third week of July, ahead of two weeks in 1982. Culex (Culex) tritaeniorhynchus reached the highest peak for the second week of August in both years. Anopheles (Anopheles) sinensis showed the maximum activity for the fifth week of July in 1981, but for the third week of July, two weeks earlier in 1982. The highest peak times of three main species were compared respectively as folows. Culex (Culex) pipiens pallens had the highest peak time in common with Anopheles (Anopheles) sinensis, Culex (Culex) tritaeniorhynchus summorosus showed the maximum activity for the second week of August in 1982.

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Identification of Two Isoforms of Aminopeptidase N in Aedes aegypti Larval Midgut

  • Pootanakit, Kusol;Angsuthanasombat, Chanan;Panyim, Sakol
    • BMB Reports
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    • v.36 no.5
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    • pp.508-513
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    • 2003
  • The bacterium Bacillus thuringiensis produces toxin inclusions that are deleterious to target insect larvae. These toxins are believed to interact with a specific receptor protein(s) that is present on the gut epithelial cells of the larvae. In various insect species (in particular those belonging to the lepidopteran class), aminopeptidase N (APN) is one of the two receptor proteins that are considered to be involved in toxin-receptor interactions. However, in mosquitoes, the nature and identity of the receptor protein is unknown. Here, using RT-PCR, we identified two isoforms of the APN transcripts in the Aedes aegypti mosquito larval midgut. These results are congruent with a previous report of multiple isoforms of the APN gene expression in lepidopteran larvae. Which of the two isoforms (or other yet unidentified receptor proteins) is involved in the killing of mosquito larvae remains to be elucidated.