biologists expand on more than 150 years of textbook wisdom with a new explanation for wasp mimicry | Search | Laxaro
Laxaro Your source for the latest research news
 biologists expand on more than 150 years of textbook wisdom with a new explanation for wasp mimicry
biologists expand on more than 150 years of textbook wisdom with a new explanati

The masquerade is almost perfect. Certain moths of the subfamily Arctiinae are marked with a yellow and black pattern. But these day-active insects have wasp waists and their antennae resemble those of wasps. Their transparent wings are folded in a wasp-like way. For more than 150 years there has been a plausible explanation for this type of imitation, which is commonly known as mimicry. It says that the moths - just like many hoverflies and other insects - imitate wasps in order to protect themselves from birds and other hostile predators. According to textbook wisdom, these voracious foes have learned from painful experience. They have been stung by wasps and since then have avoided any animal that looks like one. In the scientific journal Ecology and Evolution, a University of Freiburg

new species of parasitic wasp discovered in the eggs of leaf-rolling weevils in

IMAGE: This is an adult wasp of the new species Poropoea africana.
view more Credit: Dr. Stefania LaudoniaA new species of parasitic wasp has been obtained from the eggs of weevils, associated with bushwillows, collected and identified by Dr. Silvano Biondi. Given the tiny insect from northeastern Gabon is the first record of its genus for West-Central Africa, the researchers Dr. Stefania Laudonia and Dr. Gennaro Viggiani, both affiliated with Italy's University of Naples Federico II, decided to celebrate it by assigning the species a name that refers to the continent. Their team has published the findings in the open access journal ZooKeys.Named Poropoea africana, the new species belongs to a large worldwide group of wasps well-known as egg parasitoids of leaf-rolling weevils. Using cha

the secrets of russia’s propaganda war, revealed

“Psychological warfare has existed as long as man himself.” So begins a book purported to be an unauthorized reprint of the Russian military intelligence service’s (GRU) textbook on psychological warfare. The book was published in Minsk in 1999. But it had been the basis of courses on psychological warfare for reserve officer training (ROTC) cadets at Moscow State University’s (MGU) journalism faculty, for some time before that, former students say.“In the past people were able to influence each other only through direct contact,” the textbook reads. “Today, the means of influencing the human mind have become much more sophisticated, thanks to the accumulated knowledge of thousands of years, information technologies, communication, and management.” While the purported GRU textbook was ahea

the secrets of russia’s propaganda war, revealed

“Psychological warfare has existed as long as man himself.” So begins a book purported to be an unauthorized reprint of the Russian military intelligence service’s (GRU) textbook on psychological warfare. The book was published in Minsk in 1999. But it has long been the basis of courses on psychological warfare for reserve officer training (ROTC) cadets at Moscow State University’s (MGU) journalism faculty, former students say.“In the past people were able to influence each other only through direct contact,” the textbook reads. “Today, the means of influencing the human mind have become much more sophisticated, thanks to the accumulated knowledge of thousands of years, information technologies, communication, and management.” While the purported GRU textbook was ahead of its time, several

hawaiian biodiversity has been declining for millions of years

Hawaii's unique animal and plant diversity has been declining on all but the Big Island for millions of years, long before humans arrived, according to a new analysis of species diversity on the islands by University of California, Berkeley, evolutionary ont style="color:#666;background-color:#fff5a9;">biologistsont>.

unionists and taxi drivers stage separate protests in melbourne

Thousands of unionists have taken to Melbourne's streets to rally against what they are calling a "war on workers".  They are protesting against the Federal Government's new tough building code, the reintroduction of the Australian Building and Construction Commission and planned penalty rate cuts.CCTV: Frankston hairdresser robbed three times in one morningVideo duration00:34Previous slideNext slideVideo duration01:07Furious taxi drivers try to storm ...Furious taxi drivers try to storm Parliament Taxi drivers furious at the government's proposed changes to their industry attempt to storm the Victorian parliament as organisers try to appeal for calm.CCTV: Frankston hairdresser robbed three times in one morningVideo duration00:34Video duration00:34CCTV: Frankston hairdresser robbed three .

chinese bank to expand into greek projects | business

Following a meeting on Tuesday in Athens with China Development Bank chairman Hu Huaibang, Bank of Greece Governor Yannis Stournaras expressed satisfaction with CDB’s intention to ont style="color:#666;background-color:#fff5a9;">expandont> its presence in Greece, mainly via the financing of infrastructure projects.The meeting followed the signing of a memorandum of understanding between Greece’s central bank and CDB last July. The MoU provides for the promotion of bilateral relations and economic and trade cooperation between China and Greece.Hu noted that CDB – one of the world’s biggest development lenders – sees Europe and its expansion to international markets as priorities, adding that it has created special funds for the financing of enterprises in several European countries including Greece.During the meeting the CDB chief also noted

the wisdom of nokia's dumbphone

The smartphone’s ubiquity has made it boring and oppressive. A new, retro handset opens the door to a different future.

taptica opens new office in the uk to expand mobile marketing focus

Source TapticaWith the UK now being the second most advanced mobile ad market according to Zenith Media, mobile advertising platform, Taptica, has announced the opening of an office in the country. The move is in line with the company’s global expansion plans and presents the fourth international office launch by Taptica over the last 12 months.The new UK office plans to work with ad agencies with a particular focus on brands within the entertainment, eCommerce, retail, digital banking, travel and gaming sectors.Taptica wants to ont style="color:#666;background-color:#fff5a9;">expandont> on relationships with existing European clients headquartered in the UK.As part of the move, Amit Dar, Taptica’s Head of Strategic Partnerships in Europe, has relocated to London to lead the new UK office. He joined the company two years ago and has been wor

mike pence's falsehoods start catching up with him

Donald Trump was supposed to travel to Kentucky on Saturday to defend the Republican health care plan, which some have begun calling “Trumpcare,” but the president canceled without explanation. (Trump instead went golfing for the ninth time since Inauguration Day.)Kentuckians were not, however, left empty-handed. As the conservative Washington Timesnoted, the vice president went instead.Even by 2017 standards, this is bizarre. To the extent that reality still matters, Kentucky is actually a textbook example of the Affordable Care Act succeeding. As regular readers know, under Gov. Steve Beshear’s (D) leadership, the state’s success story has served as a national model, watching its uninsured rate drop from 20.4% to just 7.5%. In terms of state-by-state improvement, the Bluegrass State is t

with flying colors: top entomology students honoured with wasp species named aft

IMAGE: The new wasp species Leuroagathis paulbakeri named after entomology student Mr. Paul Baker, who passed the written exam in an entomology class with the highest mark of 100 percent in...
view more Credit: Dr. Michael J. SharkeyThe highly divergent parasitic wasps have long been causing headaches to scientists. At one point, taxonomists began using some genera as "dumping grounds for unplaced members", simply to organise the species. Two entomologists from the University of Kentucky, USA - Drs. Michael J. Sharkey and Eric Chapman, have recently addressed one such issue by describing ten new genera and many more new species and combinations. The resulting paper is published in the open access journal ZooKeys. Interestingly, among the newly described species there are two wasps named

researchers discovered fungus gnat paradise in peruvian amazonia

IMAGE: Maneta aligera is one of the new fungus gnats discovered in the Peruvian Amazonia.
view more Credit: Olavi Kurina, University of Tartu, EstoniaFinnish and Estonian researchers have discovered and identified 16 new fungus gnat species in the Amazonia. The diverse gnat species maintain exceptionally rich parasitoid wasp species, which shows the importance of interdependence between rain forest species. Researchers from the Biodiversity Unit of the University of Turku, Finland, and from the University of Tartu, Estonia, found 16 new fungus gnat species of the genus Manota in the Allpahuayo-Mishana National Reserve in the Peruvian Amazonia. Fungus gnats are small insects whose larvae live inside mushrooms. - In addition to the new species unknown to science, we found several known fun

newly discovered virus affects sex ratio of insect-killing wasps

Vertical transmission of PpNSRV-1 in Pteromalus puparum wasps (A) and viral detection in field populations of Pteromalus puparum wasps (B). Credit: Wang F, et al. (2017)Scientists have identified a previously unknown virus that decreases the number of female offspring of the wasps it infects, according to a PLOS Pathogens study. The virus, discovered by Gongyin Ye's group of Zhejiang University, infects one species of a specific group of wasps known as parasitoid wasps.
Parasitoid wasps lay their eggs inside the bodies of the host insects. After the eggs hatch, the young wasps spend the first part of their life cycle feeding on the host insect until it dies. Many parasitoid wasps have symbiotic relationships with viruses that enable wasps to produce substances that weaken the host insect

au cameroun, un petit génie du code primé par google et privé d’internet par yao

Collins Nji est le premier Africain lauréat du concours Google Code. Mais la crise perdure, et avec elle la coupure du réseau et la fermeture des écoles.
Par Josiane Kouagheu (contributrice Le Monde Afrique, Bamenda, Cameroun, envoyée spéciale)
LE MONDE
Le 13.03.2017 à 17h14



Mis à jour le 13.03.2017 à 19h42
Collins Nji, tout juste 18 ans, premier Africain lauréat du concours Google Code et son mentor Wisdom, qui lui a appris à coder.Crédits : Josiane KouagheuLes yeux rivés sur l’écran d’un ordinateur portable posé sur ses genoux, les doigts volant sur les touches du clavier, Collins Nji Gbah code. Durant de longues minutes, le jeune garçon au visage encore poupin ignore le monde extérieur. Seul Wisdom ose s’approcher de lui et parvient à le distraire. Ils se comprennent.

perception that us drives the world economy 20 years out of date, says economist

Jim O'Neill, the British economist who coined the term "BRICS" to describe the world's emerging economic powers, has warned further global economic integration could become problematic without radical policies to boost wages in advanced economies like Australia."I have a hunch.. that we will see deliberate policies, more and more, to boost wage growth in Western democracies," he told the Australian Financial Review Business Summit in Sydney on Wednesday.Gunmen dressed as doctors kill over 30Video duration00:48Previous slideNext slideVideo duration00:48Gunmen dressed as doctors kill over 30Gunmen dressed as doctors kill over 30In an attack claimed by IS, gunmen dressed as medics stormed a big military hospital in Kabul, Afghanistan.The Real Housewives of Sydney revealedVideo duration01:34Vi

ariana grande says she & mac miller have 'loved and adored' each other since fir

Ariana Grande covers the newest issue of Cosmopolitan magazine and opens up about her romance with Mac Miller in the interview. The two were first reported to be dating in August last year and confirmed it the month following, but as she explains their relationship spans back much longer than that. "I met him when I was 19. We have loved and adored and respected each other since the beginning, since before we even met, just because we were fans of each other's talent," Grande said in the interview. "We weren't ready at all, though, to be together. It's just timing. We both needed to experience some things, but the love has been there the whole time."The two first teamed up for "The Way" on Grande's 2013 Yours Truly album. Now, nearly  four years later, they seem to be living happily as a c

russian library digitizes collection of the oldest printed books

Credit: Tomsk State UniversityScientists at the TSU Research Library have digitized and issued a collection of 26 incunabula—early printed books published in Europe before 1501. One of these books, a medieval textbook about poetic dimensions published in 1500, is very rare. Only two copies of this edition are known in the world.
Although there are no well-known publications among the incunabula of the collection, according to the Incunabula Short Title Catalogue (ISTC, British Library), one of the texts has been reported only in the collections of the TSU Research Library and in Germany."It is Fundamentum Scholarium. Deventer, a textbook on grammar, spelling, and metrics—that is, the science of poetic dimensions," explains Gennady Kvitko, an employee of the Department of Rare Books. "It

hawaiian biodiversity has been declining for millions of years

Ariamnes uwepa, one of a group of spiders that has radiated throughout the Hawaiian Islands. While this particular group has not yet reached into all ecological niches on the older islands, most other species peaked millions of years ago and have been declining since because of crowding. Credit: Rosemary Gillespie and George Roderick, UC BerkeleyHawaii's unique animal and plant diversity has been declining on all but the Big Island for millions of years, long before humans arrived, according to a new analysis of species diversity on the islands by University of California, Berkeley, evolutionary ont style="color:#666;background-color:#fff5a9;">biologistsont>.
The team concluded that the shrinking land areas of the older islands began putting stress on the flora and fauna several million years after the islands formed. Today, all of the isl

behavioral biology: ripeness is all

In contrast to other members of the Drosophila family, the spotted-wing fly D. suzukii deposits its eggs in ripe fruits. Biologists from Ludwig-Maximilians-Universitaet (LMU) in Munich have now elucidated the sensory basis of their ability to exploit a novel ecological niche.

boulder valley to expand chromebook initiative to more high schools via technolo

Starting in the next school year, Boulder Valley high schools will have the option to charge students at $45-a-year technology fee for Chromebooks. The fee would allow the school district to ont style="color:#666;background-color:#fff5a9;">expandont> its one-to-web initiative beyond the two pilot schools, Broomfield High and Lafayette's Centaurus High. The fee, spread over four years, covers the cost of a Chromebook, which would be given to students when they graduate. As with all of the district's fees, the fee would be waived for students who qualify for federally subsidized lunches.Andrew Moore, Boulder Valley's chief information officer, said the technology fee will address two main issues: equity and the need to differentiate classwork for both advanced and struggling students.Centaurus High School junior Damion Bucenec and senior Grace

hawaiian biodiversity has been declining for millions of years

IMAGE: Ariamnes uwepa, one of a group of spiders that has radiated throughout the Hawaiian Islands. While this particular group has not yet reached into all ecological niches on the older...
view more Credit: Photo by Rosemary Gillespie and George Roderick, UC BerkeleyHawaii's unique animal and plant diversity has been declining on all but the Big Island for millions of years, long before humans arrived, according to a new analysis of species diversity on the islands by University of California, Berkeley, evolutionary ont style="color:#666;background-color:#fff5a9;">biologistsont>.The team concluded that the shrinking land areas of the older islands began putting stress on the flora and fauna several million years after the islands formed. Today, all of the islands except the Big Island of Hawaii - the only island still growing - have expe

does an age gap of decades make a difference to friendships?

We often hear of romantic couples where one partner is significantly older than the other. We even have (albeit loathsome) terms to describe them: an older man is dubbed a "sugar daddy", while an older woman gets lumped with the shudder-worthy term "cougar". We don't have the vocabulary to describe relationships where one friend is significantly older than the other, but such friendships offer numerous benefits, says psychologist Dr Lara Winten: "For example, the older friend can share the benefit of wisdom, while the younger friend may bring a unique understanding of a different generation's celebrations and challenges."
Can age-gap friendships survive? Photo: Getty ImagesWe spoke to six women who have not let age stand in the way of a beautiful friendship.Age difference: 33 years Maure

cory bernardi's $1m secret shows why the parliamentary rules are broken

In 2015 Cory Bernardi and his wife bought a $1 million commercial property in Kent Town, Adelaide. The building now serves as the headquarters for Bernardi's Australian Conservatives party.But curiously, you won't find any mention of the building on the now independent senator's parliamentary pecuniary interests register. Under the real estate section of his register he lists only a residential property in Canberra.The Real Housewives of Sydney revealedVideo duration01:34Previous slideNext slideVideo duration01:34The Real Housewives of Sydney revealedThe Real Housewives of Sydney revealedCast members of the reality TV series have been announced, promising a "mix of magic and mayhem".Textbook theft at Gladstone Park secondary schoolVideo duration00:21Video duration00:21Textbook theft at Gla

cory bernardi's $1m secret shows why the parliamentary rules are broken

In 2015 Cory Bernardi and his wife bought a $1 million commercial property in Kent Town, Adelaide. The building now serves as the headquarters for Bernardi's Australian Conservatives party.But curiously, you won't find any mention of the building on the now independent senator's parliamentary pecuniary interests register. Under the real estate section of his register he lists only a residential property in Canberra.The Real Housewives of Sydney revealedVideo duration01:34Previous slideNext slideVideo duration01:34The Real Housewives of Sydney revealedThe Real Housewives of Sydney revealedCast members of the reality TV series have been announced, promising a "mix of magic and mayhem".Textbook theft at Gladstone Park secondary schoolVideo duration00:21Video duration00:21Textbook theft at Gla

want to make it as a biologist? better learn to code

Their schools may not have caught up yet, but these ont style="color:#666;background-color:#fff5a9;">biologistsont> are embracing the era of big data. The post Want to Make It as a Biologist? Better Learn to Code appeared first on WIRED.

Search Tags
jump to it 6 showjumping competitions you would be mad to miss out on norah jones akhilesh to contest ls poll from kannauj mulayam mainpuri massive bug may have leaked user data from millions of sites so … change your passwords their facebook 9to5toys last call airpods 30 gift card 159 august homekit door lock 135 macbook backpack 34 more physicists show ion pairs perform enhanced spooky action cornell said died wednesday night budapest’s finest the creative process of nanushka’s sandra sandor with soundgarden is i am not a racist the new i am not a crook rocker chris overcrowded and understaffed prison officers warn of more incidents did the fcc just out a google tv refresh mashing chromecast with android tv cornell also said cornell presstv iran first vp drops out of election to back rouhani владимир кекелидзе мгновение рождения вселенной possible suicide wife vicky cornell basking sharks danny devito grime stars metz nouvelle victime du psg legend of solgard is the latest game from the makers of candy crush organ on a chip model offers insights into premature aging and vascular disease most popular netflix popular netflix shows environmental chemistry ibm gets a patent on “out of office” e mail messages—in obesity is lowering the life expectancy in the us bus photobombs live streaming of planned stadium demolition that question jagged little kylie jenner’s secret pregnancy the kardashian who went against the grain escape their jungle through their differences that working through working through their
Facebook Twitter Google Plus Digg Share This

All rights reserved. © Laxaro 2016-2017 Run in 0.032 seconds