搜索结果: 16-30 共查到“国际动态 昆虫学”相关记录206条 . 查询时间(2.402 秒)
1亿年前萤火虫就已学会发光抵御捕食者
1亿年前 萤火虫 发光 捕食者
2021/1/28
盛夏的野外，萤火虫一闪一灭的光亮，犹如一盏盏神秘莫测的明灯。通常，只有年幼和雌性萤火虫才发光，这是一种求爱信号。极少数的雄性萤火虫也用闪光进行防御。近日，中国科学院南京地质古生物研究所与捷克帕拉茨基大学、英国布里斯托大学及中山大学合作，从缅甸琥珀中发现了萤火虫的一个“老祖先”：白垩光萤科。这一新类群的发现对于研究叩甲总科中生物发光的起源与演化具有重要意义。该成果1月20日在线发表在英国《皇家学会会...
Unsure how to help insect declines? Scientists suggest some ways（图）
insect declines sound the alarm
2021/2/5
Entomologist Akito Kawahara's message is straightforward: We can't live without insects. They're in trouble. And there's something all of us can do to help.Kawahara's U.S. National Science Founda...
国际资讯-新的分拣技术,使虫害防治更高效（图）
采采蝇 无菌昆虫技术 吸血昆虫 辐照法
2022/5/16
使用辐照法对抗采采蝇，包括饲养然后在环境中释放不育的雄蝇，让它们与不产生后代的野生雌蝇交配，随着时间的推移减少数量。但是，每周将成千上万的雄蝇从雌蝇中分拣出来，这是一个繁琐的过程，需要人工完成。国际原子能机构与联合国粮食及农业组织合作开发的一种新技术和机器，配有红外高速摄像机，正在帮助加快分拣速度。
汽车也“压不死”甲虫的秘密（图）
自然 甲虫 压不死
2020/10/23
当昆虫学家第一次告诉Jesus Rivera，一种不起眼的黑甲虫能在被汽车碾过之后幸存下来时，他表示怀疑。然后 Rivera试了试，这只虫子毫发无伤地离开了。现在，这位美国加州大学欧文分校的博士发现了这种甲虫成功的秘密。
Study finds that insect shows promise as a sustainable protein source（图）
insect promise sustainable protein source
2020/9/11
With global food demands rising at an alarming rate, a study led by scientists at Indiana University—Purdue University Indianapolis has found new evidence that a previously overlooked insect...
Flies and mosquitoes beware: Here comes the slingshot spider（图）
Flies mosquitoes beware slingshot spider
2020/8/21
Running into an unseen spiderweb in the woods can be scary enough, but what if you had to worry about a spiderweb -- and the spider -- being catapulted at you? That's what happens to insects in the Am...
根据自然科研旗下《科学报告》近日发表的一项最新研究，德国科学家利用数字显微技术“透视”了一个来自4.29亿年前的三叶虫化石的眼睛，发现其内部结构几乎与现代昆虫眼睛一模一样。这一研究结果表明，许多现代昆虫和甲壳动物眼睛的视觉原理，至少已有5亿年的历史。这也为人类理解远古生命提供了新的线索。
蜜蜂是帮助人类生存的重要因素。没有昆虫授粉，许多植物物种（包括各种农作物）便无法繁殖。“因此，蜜蜂的死亡会影响人类的食物供应。”研究植物与昆虫相互作用的专家Sara Leonhardt说。全世界有两万多种蜜蜂需要被考虑，其中除了著名的蜜蜂外，大黄蜂还具有特殊的重要性。
Weather radar records drastic drop in mayfly populations（图）
Weather radar drastic drop mayfly populations
2020/2/20
At the beginning of each summer, mayfly larvae emerge from bodies of water and shed their skin to become full-fledged mayflies, similar to the way in which caterpillars become butterflies.
Secrets to climate change adaptation uncovered in the European corn borer moth（图）
climate change adaptation European corn borer moth
2019/11/15
The ability to synchronize behavioral, morphological and other transitions with the seasons is integral to the life cycle of most insects. A research team led by biologists at Tufts University has fou...
Despite temperature shifts,treehoppers manage to mate（图）
temperature shifts treehoppers mate
2019/10/21
Scientists know that there is a thermal window when half-centimeter-long insects called treehoppers are active and looking for mates. Male tree hoppers produce songs to attract females, and females us...
The ice worm is one of the largest organisms to spend its life in ice, and Washington State University scientist Scott Hotaling is one of the only people on the planet studying it.He is the author of ...
Many of an organism's traits are influenced by cues from the environment. These features are known as phenotypically plastic traits, and are important in allowing the organism to cope with unpredictab...
