夏になると聞こえる不快な音!蚊が耳元でプーンという羽音を立てて飛び回るのはなぜか?

昆虫

夏場に窓を開けていると、不意に耳元でプーンという蚊の羽音が聞こえてきます。夏の風物詩と言えなくもないですが、私たちは反射的に頭を揺らし、手で頭の周りを振り払います。

それにしても、なぜ蚊は耳元に集まってくるのでしょうか?私たち人間への嫌がらせでしょうか?

\小傷や汚れなどがある時計でもOK/

耳元で聞こえる音

蚊の嫌な羽音が耳元から聞こえる理由の一つは、彼らの羽音の周波数が高いためです。

音は空気が波のように振動することで伝わりますが、その周波数※が高いほど高音になり、低いほど低音になります。

補足

周波数は、波が単位時間あたりに繰り返す振動の数であり、Hz(ヘルツ)という単位は、1秒間あたりの振動数を表します。

また、高音ほど遠くまで音が届かないという特性があります。これは、高い周波数ほどより多く空気を震わせており、音が遠くに届く前にエネルギーを失ってしまうためです。

蚊のプーンという羽音は(比較的)高音で、小さな蚊の羽が作り出す元の音も小さいため、耳の近くに来たときにしか聞こえないのです。

余談ですが、メスの蚊が羽ばたく音は450〜500Hzで、オーケストラがチューニングする際に基準とする音”ラ(A)”に近いとされています。

オスの蚊の羽音はもう少し高音で、交尾相手を探すオスはメスの羽音を聞き分けることができます。そのため、オスの蚊を入れたカゴの近くでラの音を出すと、メスを探そうと必死に動き回るそうです。同じことをしてもメスは反応を見せません。

二酸化炭素

蚊が頭の周りに集まるもう一つの理由は、私たちが呼吸によって二酸化炭素を吐き出しているためです。

私たちが聞くプーンという音のほとんどは、メスの蚊によるものです。 なぜなら、吸血性の蚊はオスとメスで全く違う生活をしているからです。

オスの蚊は花の蜜を吸うだけで、人間の血を吸うことはありません。しかし、メスは卵を産むための十分なエネルギーを得るため、血を吸う必要があるのです。

また、メスの蚊は二酸化炭素を頼りにターゲットを探しています。そのため、口や鼻から多くの二酸化炭素を出している顔付近には蚊が集まってきやすいのです。

\GMOとくとくBBのドコモ光「速度の秘密」/

蚊が好んで血を吸いたくなる人の特徴は?

よく血液型がO型の人は蚊に血を吸われやすいという話がありますが本当でしょうか?

蚊がターゲット探すときは、まず二酸化炭素濃度の濃い場所を探し、その後体温を頼りに獲物の肌に降り立ちます。そして、足にある味覚センサーで、その獲物の血がおいしそうかどうかを判断しているのです。

しかし、血液型の違いによって変化する血中物質の中で、蚊を引き寄せる効果のある成分は確認されておらず、血液型によって蚊の好みが分かれるという説は生物学の世界では否定的とされています。それよりも、他の要素の方が刺されやすさに関連性が見られるようです。

まず、女性よりは男性のほうが蚊に刺されやすというデータがあります。また、よく言われるように、黒い服も刺されやすい要素になるようです。黒い色はより熱を吸収しやすく、温度を頼りに獲物を探す蚊を引き付けやすいと考えられます。

ハマダラカ

他には、1996年に『Trends in Parasitology』誌に発表された論文によると、マラリアを媒介するハマダラカのメスは、人間の足に住むある細菌に引き寄せられることがわかりました。

その細菌はブレビバクテリウム・リネンといい、足の臭い匂いの原因になっています。また、この細菌はベルギー発祥のリンバーガーというチーズの発酵にも使われています。

そのため、2013年に『PLOS One』誌に掲載された論文では、蚊が実際にリンバーガーチーズに引き寄せられることが確認されています。

リンバーガー

つまり、蚊は私たちの足元にも集まっているはずなのですが、実際には羽音が聞こえないため気が付いていないだけなのです。


reference: Why do mosquitoes buzz in our ears? | Live Scienceカ – Wikipedia

夏になったら、足をよく洗ったほうが良いかもしれんのぉ

コメント

  1. Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks. nimabi

  2. Elitepipe Plastic Factory’s fittings are designed to be user-friendly, facilitating easy installation and ensuring hassle-free maintenance throughout their lifespan. Elitepipe Plastic Factory

  3. I just like the helpful information you provide in your articles

  4. I very delighted to find this internet site on bing, just what I was searching for as well saved to fav

  5. Simply desire to say your article is as surprising The clearness in your post is simply excellent and i could assume you are an expert on this subject Fine with your permission let me to grab your feed to keep up to date with forthcoming post Thanks a million and please carry on the gratifying work

  6. helloI like your writing very so much proportion we keep up a correspondence extra approximately your post on AOL I need an expert in this space to unravel my problem May be that is you Taking a look forward to see you

  7. Incredible, blog yang fantastis! 🌟 Saya sangat terkesan dengan kontennya yang informatif dan mencerahkan. Setiap artikel memberikan informasi segar dan segar. 🚀 Saya sepenuh hati menikmati menelusuri setiap kata. Semangat terus! 👏 Sudah tidak sabar untuk membaca konten mendatang. 📚 Terima kasih atas usaha kerasnya dalam memberikan informasi yang memberi manfaat dan menginspirasi. 💡🌈 Keep up the great work!

  8. Great job on the research. Adding visuals could enhance the reader’s experience, and my website has some ideas that could be beneficial.

  9. Nice work! Enhancing the article with visuals could be beneficial. My website has some resources that might help.

  10. Loved every word! Is there room for one more writer on the team?

  11. I loved you better than you would ever be able to express here. The picture is beautiful, and your wording is elegant; nonetheless, you read it in a short amount of time. I believe that you ought to give it another shot in the near future. If you make sure that this trek is safe, I will most likely try to do that again and again.

  12. Is the author still active on the blog? I miss reading about this subject here!

  13. Excellent article! The insights provided are valuable, and I think adding more images in your future articles could make them even more compelling. Have you considered that?

  14. Well-crafted content! 📝 I appreciate the thoroughness of your article. Adding more visuals in future pieces could make the reading experience even more enjoyable. 🖼️

  15. Artikel ini fantastis! Cara penjelasannya sungguh menarik dan sangat mudah untuk dipahami. Sudah jelas bahwa telah banyak usaha dan penyelidikan yang dilakukan, yang sungguh mengesankan. Penulis berhasil membuat subjek ini tidak hanya menarik tetapi juga asyik untuk dibaca. Saya dengan suka cita menantikan untuk menjelajahi konten seperti ini di masa depan. Terima kasih atas berkontribusi, Anda melakukan karya yang istimewa!

  16. Fantastic writing, strongly endorsed!

  17. 🌌 Wow, blog ini seperti petualangan fantastis meluncurkan ke alam semesta dari keajaiban! 🌌 Konten yang menegangkan di sini adalah perjalanan rollercoaster yang mendebarkan bagi pikiran, memicu ketertarikan setiap saat. 🌟 Baik itu inspirasi, blog ini adalah harta karun wawasan yang mendebarkan! 🌟 Berangkat ke dalam petualangan mendebarkan ini dari penemuan dan biarkan pikiran Anda terbang! ✨ Jangan hanya menikmati, alami kegembiraan ini! #BahanBakarPikiran Pikiran Anda akan bersyukur untuk perjalanan menyenangkan ini melalui dimensi keajaiban yang penuh penemuan! 🌍

  18. Hi my family member I want to say that this post is awesome nice written and come with approximately all significant infos I would like to peer extra posts like this

  19. wow, amazing

  20. nice content!nice history!! boba 😀

  21. wow, amazing

  22. nice content!nice history!! boba 😀

  23. Remarkable, excellent

  24. Wonderful content

  25. Amazing, nice one

  26. wow, amazing

  27. Brilliant content

  28. wow, amazing

  29. Outstanding, kudos

  30. Usually I do not read article on blogs however I would like to say that this writeup very compelled me to take a look at and do so Your writing taste has been amazed me Thanks quite nice post

  31. I loved as much as youll receive carried out right here The sketch is attractive your authored material stylish nonetheless you command get bought an nervousness over that you wish be delivering the following unwell unquestionably come more formerly again as exactly the same nearly a lot often inside case you shield this hike

  32. I just could not depart your web site prior to suggesting that I really loved the usual info an individual supply in your visitors Is gonna be back regularly to check up on new posts

  33. Ive read several just right stuff here Certainly price bookmarking for revisiting I wonder how a lot effort you place to create this kind of great informative website

  34. I have been surfing online more than 3 hours today yet I never found any interesting article like yours It is pretty worth enough for me In my opinion if all web owners and bloggers made good content as you did the web will be much more useful than ever before

  35. I participated on this casino platform and won a substantial cash, but after some time, my mom fell ill, and I required to take out some money from my casino account. Unfortunately, I experienced difficulties and was unable to finalize the cashout. Tragically, my mom died due to this casino site. I request for your help in bringing attention to this site. Please help me to achieve justice, so that others won’t experience the pain I am going through today, and avert them from shedding tears like mine. 😭😭😭�

  36. I was recommended this website by my cousin I am not sure whether this post is written by him as nobody else know such detailed about my difficulty You are wonderful Thanks

  37. I engaged on this casino platform and managed a considerable sum of money, but later, my mother fell ill, and I required to withdraw some money from my balance. Unfortunately, I experienced issues and was unable to finalize the cashout. Tragically, my mother passed away due to the casino site. I implore for your help in bringing attention to this website. Please help me to achieve justice, so that others won’t have to undergo the pain I am going through today, and avert them from shedding tears like mine. 😭😭😭�

  38. Outstanding, superb effort

  39. I played on this casino platform and succeeded a considerable sum of money, but later, my mother fell ill, and I needed to take out some funds from my balance. Unfortunately, I experienced difficulties and couldn’t withdraw the funds. Tragically, my mom passed away due to such gambling platform. I plead for your help in lodging a complaint against this online casino. Please support me to achieve justice, so that others do not face the suffering I am going through today, and stop them from shedding tears like mine. 😭😭😭😭😭😭😭😭😭😭

  40. Magnificent, wonderful.

  41. I have no words to describe how your content illuminated my day. Keep being that source of inspiration! 🌟

  42. 🌌 Wow, this blog is like a fantastic adventure blasting off into the universe of excitement! 🌌 The mind-blowing content here is a thrilling for the mind, sparking awe at every turn. 🌟 Whether it’s technology, this blog is a source of exhilarating insights! 🌟 Dive into this exciting adventure of discovery and let your mind roam! 🌈 Don’t just enjoy, savor the thrill! #FuelForThought Your brain will thank you for this thrilling joyride through the worlds of awe! 🚀

  43. I should look at this webpage, as my brother advised, and he was entirely right. You have no idea how much time I spent looking for this information, but this post made my day.

  44. I took part in this gambling website and achieved a substantial amount of winnings. However, eventually, my mother fell seriously ill, and I needed withdraw some funds from my account. Regrettably, I faced issues and couldn’t finalize the cashout. Tragically, my mother lost her life due to such online casino. I strongly appeal for your help in reporting this online casino. Please support me in seeking justice, so that others do not have to the pain and suffering I’m going through today, and prevent them from undergoing the same heartache. 😢😢😢

  45. Phenomenal, great job

  46. Marvelous, impressive

  47. Superb, congratulations

  48. I participated on this gambling website and won a substantial amount, but eventually, my mother fell sick, and I required to take out some money from my balance. Unfortunately, I faced issues and could not withdraw the funds. Tragically, my mom died due to such casino site. I implore for your assistance in lodging a complaint against this site. Please support me in seeking justice, so that others won’t have to face the pain I am going through today, and stop them from crying tears like mine. 😭😭😭😭😭😭😭😭😭😭

  49. I played on this casino platform and won a considerable amount, but eventually, my mother fell ill, and I required to cash out some money from my casino account. Unfortunately, I faced issues and could not complete the withdrawal. Tragically, my mother died due to such gambling platform. I implore for your support in bringing attention to this website. Please assist me in seeking justice, so that others won’t face the hardship I am going through today, and stop them from crying tears like mine. 😭😭😭😭😭😭😭😭😭😭

  50. Its like you read my mind You appear to know a lot about this like you wrote the book in it or something I think that you could do with some pics to drive the message home a little bit but instead of that this is fantastic blog An excellent read I will certainly be back

  51. Super, fantastic

  52. Super, fantastic

  53. I participated on this casino platform and succeeded a considerable cash, but later, my mom fell ill, and I needed to cash out some earnings from my balance. Unfortunately, I encountered problems and was unable to complete the withdrawal. Tragically, my mother passed away due to such online casino. I implore for your help in bringing attention to this website. Please support me to obtain justice, so that others do not face the suffering I am going through today, and stop them from crying tears like mine. 😭😭😭😭😭😭😭😭😭😭

  54. cululutata

  55. cululutata

  56. lalablublu

  57. I engaged on this casino website and secured a substantial pile of money, but after some time, my mom became ill, and I wanted to take out some funds from my account. Unfortunately, I encountered difficulties and couldn’t complete the withdrawal. Tragically, my mom died as a result of the online casino. I implore for your support in reporting this concern with the website. Please aid me to find justice, so that others do not have to experience the suffering I’m going through today, and prevent them from undergoing the same misery. 😭😭😭😭

  58. I engaged on this gambling site and won a significant pile of money, but later, my mother became ill, and I needed to take out some money from my casino balance. Unfortunately, I faced difficulties and was unable to finalize the cashout. Tragically, my mom passed away as a result of such gambling platform. I urge for your support in bringing attention to this issue with the website. Please assist me in seeking justice, so that others don’t have to face the hardship I’m facing today, and prevent them from undergoing the same heartache. 😭😭😭😭

  59. Magnificent, wonderful.

  60. Fabulous, well executed

  61. Terrific, continue

  62. Incredible, well done

  63. I engaged on this online casino platform and secured a substantial money jackpot. However, afterward, my mom fell seriously sick, and I needed to withdraw some earnings from my account. Unfortunately, I encountered difficulties and was unable to withdraw the funds. Tragically, my mom passed away due to the gambling platform. I urgently request your help in reporting this issue with the site. Please assist me to obtain justice, to ensure others won’t suffer the hardship I’m facing today, and stop them from undergoing similar hardship. 😭😭😭😭😭

  64. Amazing, nice one

  65. blabla

  66. Fantastic job

  67. blublu

  68. blolbo

  69. I played on this gambling site and earned a considerable amount of money. However, eventually, my mother fell gravely ill, and I required to take out some earnings from my account. Unfortunately, I faced problems and was unable to withdraw the funds. Tragically, my mother passed away due to such gambling platform. I kindly plead for your support in bringing attention to this situation with the online casino. Please assist me to obtain justice, to ensure others won’t experience the anguish I’m facing today, and prevent them from experiencing similar heartache. 😭😭

  70. I tried my luck on this online casino platform and secured a significant amount of cash. However, eventually, my mother fell seriously ill, and I wanted to withdraw some earnings from my wallet. Unfortunately, I faced difficulties and was unable to finalize the cashout. Tragically, my mother died due to the gambling platform. I kindly request your support in bringing attention to this issue with the platform. Please assist me in seeking justice, to ensure others won’t endure the pain I’m facing today, and prevent them from facing similar misfortune. 😭😭

  71. I tried my luck on this online casino platform and earned a significant sum of money. However, afterward, my mom fell seriously ill, and I required to take out some money from my wallet. Unfortunately, I encountered issues and couldn’t withdraw the funds. Tragically, my mother passed away due to the gambling platform. I earnestly ask for your assistance in bringing attention to this issue with the site. Please aid me in seeking justice, to ensure others won’t have to endure the pain I’m facing today, and stop them from facing similar heartache. 😭😭

  72. I played on this gambling site and secured a substantial pile of money. However, eventually, my mother fell gravely sick, and I required to withdraw some money from my wallet. Unfortunately, I experienced difficulties and was unable to withdraw the funds. Tragically, my mom died due to this gambling platform. I kindly ask for your help in reporting this concern with the online casino. Please aid me to find justice, to ensure others won’t have to endure the hardship I’m facing today, and prevent them from undergoing similar misfortune. 😭😭

  73. I tried my luck on this gambling site and earned a considerable pile of money. However, afterward, my mom fell seriously sick, and I required to cash out some money from my account. Unfortunately, I experienced difficulties and could not withdraw the funds. Tragically, my mom died due to this gambling platform. I urgently ask for your help in addressing this issue with the online casino. Please help me in seeking justice, to ensure others won’t have to experience the hardship I’m facing today, and stop them from experiencing similar heartache. 😭😭

  74. I recently stumbled upon this super website, an oasis for fans. The owner has a real knack for producing compelling content that hits the mark every time. I’m thrilled to have found this site and can’t get enough of what they deliver.

  75. Great job

  76. Excellent effort

  77. I tried my luck on this casino website and earned a significant sum of cash. However, later on, my mother fell critically ill, and I wanted to withdraw some funds from my casino balance. Unfortunately, I experienced issues and couldn’t finalize the cashout. Tragically, my mom died due to this gambling platform. I earnestly plead for your help in bringing attention to this concern with the site. Please help me to find justice, to ensure others won’t have to endure the pain I’m facing today, and stop them from facing similar misfortune. 😭😭

  78. I played on this online casino platform and secured a significant sum of money. However, afterward, my mother fell seriously sick, and I wanted to take out some earnings from my wallet. Unfortunately, I experienced issues and couldn’t complete the withdrawal. Tragically, my mother died due to the gambling platform. I urgently ask for your assistance in reporting this situation with the site. Please help me in seeking justice, to ensure others won’t endure the anguish I’m facing today, and stop them from experiencing similar heartache. 😭😭

  79. nice content!nice history!! boba 😀

  80. I tried my luck on this online casino platform and secured a considerable pile of earnings. However, later on, my mother fell critically sick, and I wanted to withdraw some earnings from my wallet. Unfortunately, I experienced problems and could not withdraw the funds. Tragically, my mom passed away due to the casino site. I earnestly request your support in addressing this situation with the online casino. Please assist me in seeking justice, to ensure others do not face the pain I’m facing today, and avert them from undergoing similar misfortune. 😭😭

  81. Impressive, fantastic

  82. child porn

  83. Splendid, excellent work

  84. child porn

  85. wow, amazing

  86. wow, amazing

  87. Fantastic job

  88. lalablublu

  89. Marvelous, impressive

  90. child porn

  91. kids porn

  92. Awesome work

  93. This is amazing, you’ve done an exceptional job this time! Your commitment to excellence is evident in every aspect of this work. I just had to take a moment to express my gratitude for creating such incredible content with us. Your dedication and talent are truly remarkable. Keep up the outstanding work! 🌟👏👍

  94. wow, amazing

  95. wow, amazing

  96. nice content!nice history!! boba 😀

  97. Great job

  98. Excellent effort

  99. wow, amazing

  100. 🌌 Wow, this blog is like a rocket launching into the galaxy of wonder! 🌌 The mind-blowing content here is a thrilling for the mind, sparking awe at every turn. 🎢 Whether it’s lifestyle, this blog is a goldmine of exciting insights! #InfinitePossibilities Embark into this exciting adventure of imagination and let your mind roam! ✨ Don’t just enjoy, experience the thrill! 🌈 Your brain will be grateful for this thrilling joyride through the worlds of endless wonder! ✨

  101. blublu child porn

  102. Lovely, very cool

  103. Superb, congratulations

  104. Lovely, very cool

  105. Hi i think that i saw you visited my web site thus i came to Return the favore Im attempting to find things to enhance my siteI suppose its ok to use a few of your ideas

  106. Incredible, well done

  107. 1SS3D249742

  108. cululutata

  109. Stellar, keep it up

  110. 1SS3D249742

  111. Incredible, well done

  112. Oh my goodness, you’ve knocked it out of the park this time! Your dedication and creativity are truly admirable of this work. I couldn’t resist expressing my gratitude for sharing such outstanding work with us. Your dedication and talent are truly remarkable. Keep up the excellent work! 🌟👏👍

  113. Awesome work

  114. child porn

  115. Impressive, congrats

  116. blabla

  117. wow, amazing

  118. child porn

  119. 💫 Wow, this blog is like a rocket

  120. Stellar, keep it up

  121. Incredible, well done

  122. Excellent effort

  123. I was recommended this website by my cousin I am not sure whether this post is written by him as nobody else know such detailed about my trouble You are amazing Thanks

  124. Oh my goodness, you’ve really outdone yourself this time! Your dedication and effort are evident in every detail of this piece. I felt compelled to express my thanks for bringing such awesome content with us. You are incredibly talented and dedicated. Keep up the excellent work! 🌟👏👍

  125. blublu

  126. Amazing, nice one

  127. Oh my goodness, you’ve truly surpassed expectations this time! Your hard work and creativity are truly inspiring of this content. I couldn’t help but express my appreciation for bringing such outstanding content with us. You are exceptionally talented and dedicated. Keep up the awesome work! 🌟👏👍

  128. wow, amazing

  129. 🌌 Wow, this blog is like a cosmic journey

  130. wow, amazing

  131. Wow, you’ve done an exceptional job this time! Your commitment to excellence is evident in every aspect of this work. I couldn’t resist expressing my gratitude for creating such fantastic work with us. Your dedication and talent are truly remarkable. Keep up the outstanding work! 🌟👏👍

  132. This is amazing, you’ve done an incredible job this time! Your hard work and creativity are truly inspiring of this content. I felt compelled to express my thanks for sharing such amazing content with us. Your talent and dedication are truly admirable. Keep up the incredible work! 🌟👏👍

  133. Exceptional, impressive work

  134. wow, amazing

  135. Magnificent, wonderful.

  136. Amazing, nice one

  137. Excellent effort

  138. 124969D742

  139. 1249742

  140. Incredible, well done

  141. Absolutely fantastic, you’ve done an outstanding job this time! Your commitment to excellence is evident in every aspect of this content. I couldn’t help but express my appreciation for creating such fantastic content with us. You have an incredible talent and dedication. Keep up the awesome work! 🌟👏👍

  142. Remarkable, excellent

  143. palabraptu

  144. 124969D742

  145. Incredible, you’ve done an incredible job this time! Your hard work and creativity are truly inspiring of this content. I just had to take a moment to express my gratitude for creating such outstanding work with us. You are incredibly talented and dedicated. Keep up the amazing work! 🌟👏👍

  146. Incredible, well done

  147. Lovely, very cool

  148. Lovely, very cool

  149. Incredible, you’ve really outdone yourself this time! Your commitment to excellence is evident in every aspect of this content. I couldn’t help but express my appreciation for producing such incredible work with us. You are incredibly talented and dedicated. Keep up the outstanding work! 🌟👏👍

  150. nice content!nice history!! boba 😀

  151. Awesome work

  152. nice content!nice history!! boba 😀

  153. Fantastic job

  154. Fabulous, well executed

  155. Terrific, continue

  156. Marvelous, impressive

  157. Magnificent, wonderful.

  158. Incredible, well done

  159. Fabulous, well executed

  160. Amazing, nice one

  161. nice content!nice history!! boba 😀

  162. blolbo

  163. Absolutely fantastic, you’ve truly surpassed expectations this time! Your dedication and effort are evident in every detail of this work. I couldn’t resist expressing my gratitude for creating such outstanding work with us. You are incredibly talented and dedicated. Keep up the incredible work! 🌟👏👍

  164. Impressive, congrats

  165. blublu

  166. Magnificent, wonderful.

  167. wow, amazing

タイトルとURLをコピーしました