搜索结果: 76-90 共查到“国际动态 昆虫学”相关记录206条 . 查询时间(1.454 秒)
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
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
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。
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...
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...
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
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...
Fruit Fly Genetics Reveal Pesticide Resistance and Insight Into Cancer
Fruit Fly Genetics Pesticide Resistance Insight Into Cancer
2015/6/18
For being so small, fruit flies have had a large impact on genetic research. Thomas Werner, an assistant professor of biological sciences at Michigan Technological University, has bridged the min...
加拿大阿尔伯塔大学研究人员发现寄生蜂新物种
北美寄生蜂姬蜂科 新物种 种群 寄生蜂
2015/5/18
阿尔伯塔大学研究人员最近确定了北美寄生蜂姬蜂科（Ophion）6个新物种，同时界定了一个新的种群。这一发现终结了一个世纪以来分类学界对寄生蜂的忽视。
Long-term study on ticks reveals shifting migration patterns, disease risks
ticks shifting migration patterns disease risks
2015/5/25
Over nearly 15 years spent studying ticks, Indiana University's Keith Clay has found southern Indiana to be an oasis free from Lyme disease, the condition most associated with these arachnids that are...
Honey bees use multiple genetic pathways to fight infections
Honey bees multiple genetic pathways fight infections
2015/4/1
Honey bees use different sets of genes, regulated by two distinct mechanisms, to fight off viruses, bacteria and gut parasites, according to researchers at Penn State and the Georgia Institute of Tech...
Dirt mounds made by termites in Africa, South America, Asia could prevent spread of deserts
Dirt mounds termites Africa South America Asia could prevent spread of deserts
2015/3/4
Termites might not top the list of humanity's favorite insects, but new research suggests that their large dirt mounds are crucial to stopping deserts from spreading into semi-arid ecosystems.The ...
For most of us, switching to a vegetarian diet might be a matter of a New Year's resolution and a fair amount of willpower, but for an entire species, it's a much more involved process — one that evol...
Treatment for parasitic worms helps animals survive infectious diseases--and spread them（图）
Treatment for parasitic worms animals survive infectious diseases spread them
2015/1/20
Parasitic worms, which infect millions of people and other animals around the world, influence how the immune system responds to diseases like HIV and tuberculosis.In a new study of African buffalo, U...
About one tenth of the world’s ants are close relatives; they all belong to just one genus out of 323, called Pheidole. “If you go into any tropical forest and take a stroll, you will step on one...