Monday, March 15, 2010

Wikinews reporter Mike Morales interviews fellow Wikinews contributor Peter Coti, who is on the scene at a north eastern storm in the United States in New Jersey. Coti tells Wikinews what happened in the area of Ridgewood, New Jersey and provided pictures of the damage and area.

Tuesday, September 1, 2015

Nick Bos, of the University of Helsinki, studies “the amazing adaptations social insects have evolved in order to fight the extreme parasite pressure they experience”. In a recently-accepted Evolution paper Bos and colleagues describe ants appearing to self-medicate.

The team used Formica fusca, an ant species that can form thousand-strong colonies. This common black ant eats other insects, and also aphid honeydew. It often nests in tree stumps or under rocks and foraging workers can sometimes be spotted climbing trees.

Some ants were infected with Beauveria bassiana, a fungus. Infected ants chose food laced with toxic hydrogen peroxide, whereas healthy ants avoided it. Hydrogen peroxide reduced infected ant fatalities by 15%, and the ants varied their intake depending upon how high the peroxide concentration was.

In the wild, Formica fusca can encounter similar chemicals in aphids and dead ants. The Independent reported self-medicating ants a first among insects.

Bos obtained his doctorate from the University of Copenhagen. He began postdoctoral research at Helsinki in 2012. He also runs the AntyScience blog. The blog aims to help address “a gap between scientists and ‘the general public’.” The name is a pun referencing ants, its primary topic, science, and “non-scientific” jargon-free communication. He now discusses his work with Wikinews.

((Wikinews)) What first attracted you to researching ants?

Nick Bos Me and a studymate were keeping a lot of animals during our studies, from beetles, to butterflies and mantids, to ants. We had the ants in an observation nest, and I could just look at them for hours, watching them go about. This was in my third year of Biology study I think. After a while I needed to start thinking about an internship for my M.Sc. studies, and decided to write a couple of professors. I ended up going to the Centre for Social Evolution at the University of Copenhagen where I did a project on learning in Ants under supervision of Prof. Patrizia d’Ettorre. I liked it so much there I ended up doing a PhD and I’ve been working on social insects ever since.

((Wikinews)) What methods and equipment were used for this investigation?

NB This is a fun one. I try to work on a very low budget, and like to build most of the experimental setups myself (we actually have equipment in the lab nicknamed the ‘Nickinator’, ‘i-Nick’ and the ‘Nicktendo64’). There’s not that much money in fundamental science at the moment, so I try to cut the costs wherever possible. We collected wild colonies of Formica fusca by searching through old tree-trunks in old logging sites in southern Finland. We then housed the ants in nests I made using Y-tong [aerated concrete]. It’s very soft stone that you can easily carve. We carved out little squares for the ants to live in (covered with old CD covers to prevent them escaping!). We then drilled a tunnel to a pot (the foraging arena), where the ants got the choice between the food with medicine and the food without.

We infected the ants by preparing a solution of the fungus Beauveria bassiana. Afterwards, each ant was dipped in the solution for a couple of seconds, dried on a cloth and put in the nest. After exposing the ants to the fungus, we took pictures of each foraging arena three times per day, and counted how many ants were present on each food-source.

This gave us the data that ants choose more medicine after they have been infected.

The result that healthy ants die sooner when ingesting ROS [Reactive Oxygen Species, the group of chemicals that includes hydrogen peroxide] but infected ants die less was obtained in another way (as you have to ‘force feed’ the ROS, as healthy ants, when given the choice, ignore that food-source.)

For this we basically put colonies on a diet of either food with medicine or without for a while. And afterwards either infected them or not. Then for about two weeks we count every day how many ants died. This gives us the data to do a so-called survival analysis.

We measured the ROS-concentration in the bodies of ants after they ingested the food with the medicine using a spectrophotometer. By adding certain chemicals, the ROS can be measured using the emission of light of a certain wave-length.

The detrimental effect of ROS on spores was easy to measure. We mixed different concentrations of ROS with the spores, plated them out on petridishes with an agar-solution where fungus can grow on. A day after, we counted how many spores were still alive.

((Wikinews)) How reliable do you consider your results to be?

NB The results we got are very reliable. We had a lot of colonies containing a lot of ants, and wherever possible we conducted the experiment blind. This means the experimenter doesn’t know which ants belong to which treatment, so it’s impossible to influence the results with ‘observer bias’. However, of course this is proof in just one species. It is hard to extrapolate to other ants, as different species lead very different lives.

((Wikinews)) Where did the ants and fungus you used come from? How common are they in the wild?

NB For ants, see above about the collection.

This species of fungus does appear in Finland, but we chose to use a different strain from Denmark (with thanks to Prof. J. Eilenberg and the laboratory technician Louise Lee Munch Larsen from the University of Copenhagen). Animals can adapt to local strains (‘local adaptation’), and just to make sure we thought it would be good to use a strain of fungus that the ants definitely did not evolve specific resistances against. This means that the reaction of the ants (to self-medicate) is very likely to be a general response, and not just against their local fungal enemies.

((Wikinews)) Are there any ethical considerations around exposing ants to toxins and parasites?

NB Legally, no. Insects do not have any ‘rights’ as such regarding ethics. That said, we do take measures to not make them ‘suffer unnecessarily’. For example, dissections are done when the ants are anesthetized (either by CO2 or Ice), and when ants need to be killed, we do it in alcohol, which kills the ants in a matter of seconds. So while the ants do not have ‘rights’ as such, we still try to handle them with as much respect as possible (even though the experiment involves infecting them with a deadly fungus).

But even though the 12,000 ants in our study sounds like a lot (and it is), this is negligible in the ‘grand scheme of things’. It has been calculated that in the Netherlands alone, nearly a trillion insects die against just the licence-plates of cars every six months. I don’t own a car, so that means I’m excused right? 😉

((Wikinews)) This is the first evidence for self-medicating insects. How widespread do you think this phenomenon could be in reality?

NB It’s not actually the first evidence for self-medication in insects. Moths and fruit flies definitely do it, and there’s evidence in honey bees and bumble-bees as well. So it seems to be quite wide-spread in the insect world. I have no doubt that as time goes on, there will be more and more cases documented. Insects (and animals in general) seem to be quite good at taking care of themselves.

((Wikinews)) How might ants locate healing substances in the wild?

NB Very good question. This is something that’s important to know. If they would only do it in the lab, the behaviour wouldn’t be very interesting. We have some guesses where they might get it from, but at the moment we don’t know yet. That said, I plan to investigate this question (among others) further [in] the next couple of years.

((Wikinews)) For your PhD you researched ants’ scent-based communications. Could healthy ants perhaps tell other ants are infected and encourage this behaviour?

NB There’s not much known about this. There’s conflicting evidence about whether sick ants actually smell different from healthy ones or not. At the moment it seems that sick ants mostly take care of the problem themselves. Sick ants stop most interaction with nestmates and especially brood, and leave the nest to die in isolation. This is probably for reducing chance of infecting nestmates, but of course it also reduces the work load of their nest-mates, as their corpse doesn’t have to be dragged out etc.

So as an answer to the question, I would find it unlikely that such a behaviour would evolve, but it’s not known yet.

((Wikinews)) Ants generally avoided the peroxide if they were healthy, but in some circumstances might they try to build resistance against infection in advance?

NB Who knows? Also not known yet unfortunately. That said, there is a very interesting study about resin collection in ants. Wood ants collect tree-resin, which has anti-microbial properties. They collect this even if not infected, and when you infect them, they don’t collect more of the resin than normal. So basically it seems like they collect it in order to keep diseases out of the nest, so they stop the disease before it can actually infect them.

((Wikinews)) Are there plans to follow this research up? Might you research other species? Other substances?

NB I first want to find out where they get it from in nature. There might be many sources of medicine (recent evidence suggests that tobacco plays a similar role for bumble bees). Dalial Freitak, who is also on this paper is currently running tests with Ph.D. student Siiri Fuchs (who is also on the paper) with other substances to see if any have the same effect as H2O2 [hydrogen peroxide].

Once the behaviour has been well described in this species of ant, I might do a comparison with other species. For example, once we find the source of the medicine in nature… would species without access to this source also have evolved the same behaviour in the lab? And if so… where would they get it from?

Also… can ants medicate their friends? 🙂

((Wikinews)) What other research are you working on right now?

NB Phew…lots! 🙂

I still have some questions left unanswered from my Ph.D. work related to how ants recognize who is a friend and who isn’t. I also started collaborating with Prof. Michael Poulsen from the University of Copenhagen on immunity in fungus-growing termites, as well as their chemical recognition abilities. Furthermore we’re working on social parasitism in wood-ants (ants have lots of animals exploiting the nest for shelter and resources, which all somehow have to get in to the fortress without getting killed).

Saturday, September 7, 2019

Adam Kokesh, an Iraq War veteran, activist, radio show host, and currently a candidate for the US Libertarian Party’s 2020 presidential nomination, spoke with Wikinews to discuss his background, political positions, and campaign for President of the United States.

Kokesh, who hails from Arizona, has been active in the anti-war movement since returning home from combat in Iraq. After an initial honorary discharge from active duty with the US Marine Corp in 2006, Kokesh was given a general discharge from the Marine Forces Reserve in 2007 after images of him wearing his uniform while participating in a protest with the Iraq Veterans Against the War were published in The Washington Post. Kokesh has also been involved in demonstrations in support of free speech, gun rights, and marijuana decriminalization. Some of these activities have resulted in his arrest. Kokesh previously hosted a show on RT and currently hosts a show on internet radio.

Politically, Kokesh supported the 2008 and 2012 presidential campaigns of Ron Paul. He was a featured speaker at Paul’s Rally for the Republic in 2008. Kokesh ran for US Congress as a Republican in 2010 in New Mexico and for US Senate in Arizona in 2018. He announced his 2020 candidacy in 2013 during a jailhouse interview. He has based his campaign on the pledge to begin “dissolving the federal government in a peaceful, orderly manner” and to resign as president and take the title of “Custodian of the Federal Government.”

Other contenders for the Libertarian Party’s 2020 presidential nomination include former Libertarian Party Vice Chairman Arvin Vohra, businessman John McAfee, and New Hampshire state representative Max Abramson. Congressman Justin Amash and former Rhode Island governor and US Senator Lincoln Chafee are both reportedly considering runs. Former New York gubernatorial candidate Larry Sharpe and former Massachusetts governor William Weld were both previously considered potential candidates but Sharpe suggested he would not run and Weld has decided to run in the 2020 Republican Party presidential primaries, challenging President Donald Trump.

With accredited Wikinews reporter William S. Saturn, Kokesh details his background and activism, his thoughts on the Libertarian Party, the Presidency of Donald Trump, and the goals for his campaign and presidency.

Friday, October 2, 2009

Companies in the United States are shedding more jobs, pushing the country’s unemployment rate to a 26-year high of 9.8%.

The US Labor Department said on Friday that employers cut 263,000 jobs in September, with companies in the service industries — including banks, restaurants and retailers — hit especially hard. This is the 21st consecutive month of job losses in the country.

The United States has now lost 7.2 million jobs since the recession officially began in December 2007. The new data has sparked fears that unemployment could threaten an economic recovery. Top US officials have warned that any recovery would be slow and uneven, and some have predicted the unemployment rate will top 10% before the situation improves.

“Continued household deleveraging and rising unemployment may weigh more on consumption than forecast, and accelerating corporate and commercial property defaults could slow the improvement in financial conditions,” read a report by the International Monetary Fund’s World Economic Outlook, predicting that unemployment will average 10.1% by next year and not go back down to five percent until 2014.

Mark Zandi, chief economist at Moody’s Economy.com, said that “it’s a very fragile and tentative recovery. Policy makers need to do more.”

“The number came in weaker than expected. We saw a lot of artificial involvement by the government to prop up the markets, and now that that is starting to end, the private sector isn’t yet showing signs of life,” said Kevin Caron, a market strategist for Stifel, Nicolaus & Co.

Also on Thursday, the US Commerce Department said factory orders fell for the first time in five months, dropping eight-tenths of a percent in August. Orders for durable goods — items intended to last several years (including everything from appliances to airliners) — fell 2.6%, the largest drop since January of this year.

The US government has been spending billions of dollars — part of a $787 billion stimulus package — to help spark economic growth. There have been some signs the economy is improving.

The Commerce Department said on Thursday that spending on home construction jumped in August for its biggest increase in 16 years. A real estate trade group, the National Association of Realtors, said pending sales of previously owned homes rose more than 12 percent in August, compared to August 2008.

A separate Commerce Department report said that consumer spending, which accounts for more than two-thirds of US economic activity, rose at its fastest pace in nearly eight years, jumping 1.3 percent in August.

Other reports have provided cause for concern. A banking industry trade group said Thursday the number of US consumers making late payments, or failing to make payments, on loans and credit cards is on the rise. A survey by a business group, the Institute for Supply Management, Thursday showed US manufacturing grew in September, but at a slower pace than in August when manufacturing increased for the first time in a year and a half.

Stock markets reacted negatively to the reports. The Dow Jones Industrial Average fell 41 points in early trading, reaching a level of 9467. This follows a drop of 203 points on Thursday, its largest loss in a single day since July. The London FTSE index fell 55 points, or 1.1%, to reach 4993 points by 15.00 local time.

Friday, June 8, 2007

On June 7, Mike Svonavec, the owner of the land in Somerset County, Pennsylvania where United Airlines Flight 93 crashed on September 11, 2001 has a US$10 million price tag for his property which is sought by the group, Families of Flight 93 and the United States National Park Service, (NPS) for building a memorial dedicated to those on the plane. Svonavec also placed a box on the crash site temporary memorial, where visitors can leave a “donation” to pay for his asking price for the land as well as the cost of providing security at the site.

The NPS has covered the donation box with a trash bag and told Svonavec in a letter to remove it by the end of Friday June 8, but Svonavec said that he will not remove the box.

“I have no intentions of removing the box from my property. My only plans are to try to cooperate with the Park Service with regard to the sale of the property,” said Svonavec.

Svonavec accused the NPS of trying to take over his property after they placed the bag over the box.

“It’s just unbelievable to my mind that that’s the direction they would take, taking control of the property like a guest would at your house,” added Svonavec.

“The bottom line is we feel the National Park Service can’t effectively carry out our mission without exercising the exclusive use and control of the site as provided for in our agreement with the property owners,” said Joanne Hanley who is the Superintendent of the memorial.

Although NPS tour guides are telling tourists and others who visit the memorial, they are shocked to learn that the money they donate is going to Svonavec and not the memorial. “They’re alarmed that they may have given their money to something that they didn’t want to give their money to,” said one of the 43 guides who volunteer at the memorial, Donna Glessner.

The land is currently under contract with the NPS and the memorial is allowed to be on the land according to an act of the United States Congress who in 2002 authorized the memorial to be placed on the land.

Currently, the U.S. National Park Service only owns approximately 60 acres of the land. PBS Coals Inc. owns 864 acres of the land and Svonavec owns 273 acres. The entire field is nearly 2,000 acres.

Friday, April 29, 2005

Swedish company Korsnas Packaging has extended its operations in Romania by transferring two production lines from Germany and the United Kingdom to its Romanian subsidiary in Ploie?ti, an industrial city close to Bucharest. The first production line will be designed for producing packing material for food and the building industry. This line will be transferred to Romania at the beginning of May, with the transaction being worth €1.5 million. The second production line will be transferred in 2006, depending on the 2005 financial results of Korsnas’ Romanian subsidiary.

In the past few years, and the past year especially, more European Union companies have relocated to Romania for to its lower labour cost and skilled workforce. Foreign investors have also been attracted by a new tax policy which started in January 2005, putting in place a flat 16% tax rate for personal income and corporate profit. Foreign investment is expected to increase in the future, as Romania signed in April 25 its Accession Treaty with the European Union and is set to become a member of this organisation on January 1, 2007.

Monday, April 11, 2005

PBS has recently decided it was time their Cookie Monster was sent on a diet. Sesame Street’s cookie-loving Muppet icon developed a sudden interest in vegetables, as part of PBS’s drive to instill a healthy lifestyle in children.

The blue furry monster’s makeover comes as part of a larger plan, introducing additional characters as well. Intended new cast members include talking eggplants and carrots, among others.

According to the Sesame Street Muppet Bios, “This season, Cookie Monster learns a lot about health and nutrition. Hoots the Owl explains in a song that ‘A Cookie is a Sometimes Food,’ and he joins Wyclef Jean in a rap song, ‘Healthy Food’.”

Every other day, health will be the focus of the shows. In addition, every other day there will be segments dealing with health/nutrition. There will be a “Health Moment” at the top of every show featuring special guests, celebrities and Sesame Street characters.

The producers of the show insist that they are not asking small children to go on a diet.

“We would never use the word ‘diet’ with pre-schoolers,” a spokeswoman told The New Zealand Herald.