搜索结果: 76-90 共查到“国际动态 昆虫学”相关记录214条 . 查询时间(0.353 秒)
冷冻三十年，水熊虫成功复苏
冷冻三十年 水熊虫 复苏
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2016/1/21
日本国家极地研究所的研究人员首次将冷冻30多年的缓步动物“水熊虫”成功复苏，这将提高人们对隐生生物体长期存活机制及条件的理解。相关研究成果发表在最新一期的《低温生物学》上。水熊虫也叫水熊，是对缓步动物门生物的俗称，有记录的约有900余种，大多是世界性分布的。它们的体型极小，最小的只有50微米，而最大的则有1.4毫米，必须用显微镜才能看清。其是地球上已知生命力最强的生物，能在冷冻、水煮、风干的状态下...
Caught in the act:New wasp species emerging
Caught in the act New wasp species
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2015/11/12
The concept that biodiversity feeds upon itself is an old idea, but it’s difficult to prove because it requires biologists to simultaneously catch several species red-handed just as they are becoming ...
Study Spells Out Why Some Insects Kill Their Mothers
Some Insects Kill Their Mothers
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2015/11/12
One day a few years ago, while working on wasps in a rainforest in Costa Rica, entomologist Kevin J. Loope, a postdoctoral researcher at the University of California, Riverside, began reading about th...
Fire severity in southwestern Colorado unaffected by spruce beetle outbreak,CU-Boulder study finds
Fire severity southwestern Colorado unaffected by spruce beetle CU-Boulder
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2015/11/12
Contrary to expectations that spruce beetle infestations increase the severity of wildfires in southwestern Colorado, a new study led by University of Colorado Boulder researchers has found that this ...
耐青蒿素疟原虫有蔓延危险 目前仅在东南亚存在但可感染非洲的蚊子
青蒿素疟原虫 蔓延危险 东南亚 感染非洲的蚊子
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2015/10/29
英国《自然—通讯》杂志日前发表的一则寄生虫病学研究显示，对于青蒿素耐药的疟原虫不仅可以感染东南亚当地的几种蚊子，还可以感染一种非洲的常见蚊子。这一发现意味着，对于抗疟疾药物青蒿素的耐药性，虽然现在只在东南亚存在，但其可能会蔓延到世界其他地方。
CWRU biologists find keys to driving a cockroach
CWRU biologists driving a cockroach
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2015/11/12
Researchers at Case Western Reserve University have identified neurons in a cockroach’s brain that control whether the insect walks slow or fast, turns right or left or downshifts to climb.By selectiv...
东南亚耐药疟原虫可感染非洲蚊子
东南亚 耐药疟原虫 非洲蚊子
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2015/10/21
近日发表于《自然—通讯》的一则研究显示，对青蒿素产生耐药性的疟原虫可感染当地的多种蚊子，同时也可以感染一种非洲常见蚊虫。这些发现意味着，对抗疟疾药物青蒿素的耐药性——虽然现在只存在于东南亚——有可能会蔓延到世界其他地方。
Tiny Dancers:Can Ballet Bugs Help Us Build Better Robots?
bio-inspired technology high-speed video mechanical engineering Robotics spider crickets
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2015/11/12
When it’s time to design new robots, sometimes the best inspiration can come from Mother Nature. Take, for example, her creepy, but incredibly athletic spider crickets.Johns Hopkins engineering studen...
Arctic Mosquitoes Thriving Under Climate Change
Arctic Mosquitoes Climate Change
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2015/9/25
Warming temperatures are causing Arctic mosquitoes to grow faster and emerge earlier, significantly boosting their population and threatening the caribou they feast on, a Dartmouth College study finds...
英国或在2050年发生蝴蝶大灭绝（图）
英国 2050年 蝴蝶大灭绝
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2015/8/12
1995年，英国经历了200多年以来最严重的一次干旱，这导致一些蝴蝶的数量直线下降。随着气候变化预期将带来更为频繁的严重干旱，特别是在英国南部，人们正越来越担心该地区对干旱极为敏感的蝴蝶。如今，科学家发现，这些昆虫最早将在2050年发生广泛的地区性灭绝。
蚯蚓能“小心”躲开植物防御系统
蚯蚓 小心 植物防御系统
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2015/8/7
据英国《自然-通讯》杂志近日发表的一则动物学研究显示，蚯蚓肠道中产生的一种独特化合物，可以保护它们不受植物产生的防御性化学物质的损伤。这些化合物起到的作用就像是表面活性剂，降低了植物化合物之间的表面张力或者干脆破坏掉它们的化学性质，其机制类似于洗洁精或是其他清洁用品所起作用的方法。
Shedding light on millipede evolution
light millipede evolution
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2015/8/4
As an National Science Foundation (NSF)-funded entomologist, Virginia Tech's Paul Marek has to spend much of his time in the field, hunting for rare and scientifically significant species. He's provid...
Flatworms Flout Global Biodiversity Patterns
Flatworms Global Biodiversity
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2015/8/4
The odds of being attacked and castrated by a variety of parasitic flatworms increases for marine horn snails the further they’re found from the tropics. A Smithsonian-led research team discovered thi...
Underground Ants Can't Take the Heat
Underground Ants Can't Take the Heat
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2015/6/18
Army ants, the nomadic swarming predators underfoot in the jungle, can take down a colony of prey animals without breaking a sweat. But certain army ant species can’t take the heat.According to a new ...
How the Hawkmoth Sees,Hovers and Tracks Flowers in the Dark
Hawkmoth Sees Hovers Tracks Flowers the Dark
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2015/6/18
Using high-speed infrared cameras and 3-D-printed robotic flowers, scientists have now learned how this insect juggles these complex sensing and control challenges – all while adjusting to changing li...