南方蚊子疑似变少,网友:终于连蚊子都要被热死了?
China Daily
没错,但不是蚊子本蚊被热死,而是蚊子的孩子被热死了!
南方的朋友或许会发现,今年夏天的蚊子少了很多。越挠越痒的蚊子包,惹人心烦的嗡嗡声出现的频率都不及往年。早早准备好的蚊香和花露水似乎少了很多用武之地。有人不免发出疑惑:难道......连蚊子都要被热死了?
没错,但不是蚊子本蚊被热死,而是蚊子的孩子被热死了!
Have you noticed fewer itchy, red bumps on your skin this summer? It's probably due to the hot, dry weather this summer.
蚊子是怎么被“热死”的
蚊子的繁殖也得靠天时地利,而高温导致池沼、水沟等静水大量干涸,蚊子失去了产卵圣地,被纷纷“扼杀在摇篮里”。
The right amount of rain at the right time is needed for mosquitoes to breed because it lays eggs on the surface of stagnant water.
即使成功“苟活”下来,在高温环境下长大的蚊子,虽然发育速度更快,但成虫体型更小,繁殖能力也更低,难以“传宗接代”。
Individuals reared at higher temperatures may develop more rapidly compared to lower temperatures, but adults tend to be smaller with reduced fitness given that size is often positively related to fecundity.
此外,高温还会降低成年蚊子的活跃程度。就像人们知道躲进空调房,蚊子也知道飞去阴凉处,不会在烈日炎炎的时候出来自讨苦吃。