Wednesday, June 12, 2013

In May, periodical cicadas with 17 years life cycle emerged on the East Coast of the USA after underground development as juveniles since 1996. Researchers and scientists worked to map and study the rare wave, and the locals prepared for the noisy event. First recorded in 1666, the Magicicada septendecim species recently emerged in 1979, 1996, this year, with a next wave due in 2030.

This week, Wikinews interviewed Chris Simon, an ecology and evolutionary biologist at University of Connecticut, about the cicadas.

((Wikinews)) What caused your initial interest in periodical cicadas?

Chris Simon: As an undergraduate student, I was interested in the formation of species so when I went to graduate school I looked for a study organism that was likely to be in the process of forming new species. I chose periodical cicadas because they are broken up into reproductively isolated broods (or year classes). Reproductive isolation leads to speciation so I planned to study biochemical differences among the broods.

((WN)) You study the emergence of the periodical cicadas. What do you study? What observations are you making?

CS: We record exactly where each cicada population emerges (using GPS automated mapping and crowd sourcing). We record the presence or absence of each of the three morphologically distinct species groups of periodical cicadas (Decim group, Cassini group, and Decula group). We collect specimens for DNA analysis. We look for cicadas coming up one and four years early and late. We dig up cicada nymphs and monitor their growth rates.

((WN)) What equipment do you use?

CS: Nets, shovels, automated GPS recorders, cameras, laptop computers, automated DNA sequencers.

((WN)) Do you study the periodical cicadas with anyone else? What is their role?

CS: Yes, there are a large number of people studying periodical cicadas in my lab and in other labs. My lab is made up of Research Scientists, Postdoctoral Researchers, a technician, graduate students, and undergraduates. Research Scientist John Cooley is the leader of the GPS mapping project; he invented the automated GPS recorder; he built our crowd-sourcing website, and he is instrumental in public outreach. Postdoctoral research David Marshall also participates in the mapping project and leads the part of the research related to the mapping of stragglers. John and Dave and Technician Kathy Hill all study periodical cicada mating behavior and conduct mating and hybridization experiments. One of my graduate students Beth Wade has participated in the nymph collections and will soon start genetic work involving genome wide association mapping designed to locate genes related to life cycle. My graduate student Russ Meister is studying the genes of the bacterial endosymbionts of cicadas. My current undergraduate honors student Erin Dwyer is also studying the development of Magicicada nymphs and is helping to design a lab exercise for college students around the eastern US to do the same. Many of my past undergraduate students have studied the biochemical genetics and development of periodical cicadas. See the Simon Lab website.

CS: We are collaborating with Teiji Sota at the University Kyoto and Jin Yoshimura at Shizuoka University in Japan. They are studying the phylogeography of Magicicada. We are collaborating with John McCutcheon of the University of Montana who is studying the endosymbiont genomes.

CS: We are also collaborating with ecologists Rick Karban and Louie Yang, both professors at UC Davis who have an interest in cicada population dynamics and nutrient cycling in the ecosystem.

((WN)) You studied the periodical cicadas in 1979 and 1996 too. What changes with time?

CS: I have studied periodical cicadas since I was a student back in 1974. What changes with time is increased human development constantly shrinking the patch size of cicada populations.

((WN)) What are your thoughts on the long life span of the periodical cicadas? Why could it be so? What advantages and what disadvantages does it have?

CS: Most or all cicadas have long life cycles compared to your typical annual insect. Examples have been found of two-year to 9-year cycles in different species. Periodical cicadas evolved an even-longer life cycle and I think that part of this relates to the evolution of their synchronized life cycles and peculiar safety-in-numbers strategy for survival. To become synchronized, periodical cicadas had to evolve an exact length life cycle and all adults would have to appear in the same year. Because the nymphs grow at different rates underground, a longer life cycle and a way of counting years must have evolved so that the individuals that get to the last nymphal (underground juvenile) stage first would wait long enough for all other individuals in the population to become ready to emerge.

((WN)) News reports mention this is ‘Brood II’ of the periodical cicadas. What are the distinctive features of this specific species and what is its full scientific name?

CS: The same species exist in multiple broods. No species is restricted to Brood II. The three species present in Brood II are: Magicicada septendecim, M. cassini, and M. septendecula. These same three species are found in every 17-year brood (except the farthest north which only has M. septendecim).

((WN)) At what depth do the cicadas juveniles live underground?

CS: Most live within the top foot of soil but some have been found deeper. We do not know if they go deeper in winter. We need to do much more digging to understand the nymphs.

((WN)) How do people prepare for the cicada emergence?

CS: Of course various people prepare in different ways. Ideally, everyone prepares by studying information available on the web (especially on our websites Magicicada Central and Magicicada.org).

((WN)) Do cicadas affect transport in the local area?

CS: No, not really. Occasionally individuals can be seeing flying across highways and sometimes they smash into cars.

((WN)) Do cicadas usually stay outside or do they also invade houses too?

CS: They stay outside. One might accidentally fly in through an open window but that would be rare.

((WN)) What do the cicadas eat?

CS: Cicadas suck xylem fluid (the watery fluid coming up from the roots of plants) in deciduous forest trees and herbs. Essential amino acids in the cicada diet are supplied by their bacterial endosymbionts. There are two species of endosymbionts. One makes 8 essential amino acids and one makes two essential amino acids.

((WN)) Do cicadas damage crops or city vegetation? What damage?

CS: Cicadas do not chew leave so they do not damage crops like other insects. They can inflict some damage by their egg laying. Cicadas lay eggs in pencil-sized tree branches. If there are not enough branches available, too many female cicadas may lay eggs in a single branch weakening it and making it susceptible to breakage by wind. This can sometimes cause damage in fruit orchards. If the branches break, the eggs die so this behavior is selected against by natural selection.

((WN)) Thank you.

CS: You’re welcome. I am happy to have this opportunity to communicate with your readers!

Tuesday, March 15, 2005A federal jury found Bernard Ebbers guilty on all nine counts in an indictment for fraud, conspiracy and false regulatory filings. The verdict was handed down by a New York jury after 8 days of deliberation on the former WorldCom CEO and mastermind behind the accounting scandal that brought down the telcom giant.

AP writer Erin McClam reported that when the verdict was announced, “Ebbers’ face reddened.”

Sentencing is set for the second Tuesday of next week when he could receive 85 years in prison for the conviction.

Ebbers who took the stand in his own defence, said he left the details of the company’s accounting to others and that he had no knowledge of shady practices. But Scott Sullivan, the ex-chief financial officer of the company and key prosecution witness, directly linked Ebbers to the fraud. Sullivan agreed to co-operate with prosecutors in the hopes of receiving a lenient sentence for his own involvement in the scandal.

The fall of WordCom sparked a massive class action law suit by investors. The plunge in WorldCom’s stock changed the capitalized value of the company in the range of $11 billion as the scandal unravelled. Secuities fraud cases stemming from the suits will probably break new legal ground where the involvement of investment banks and public accounting firms who would normally check company irregularities will be called into legal question.

Friday, August 5, 2005

I-Holding ehf, a Icelandic investment company owned by Baugur Group, Straumur investment bank, B2B Holdings and Birgis Bieltvedts, has bought 80% in Illum warehouse in Denmark from Merrill Lynch International Global Principal Investment. The same group recently bought Wessel & Vett A/S and Magasin du Nord, so it already owned 20% in Illum.

Illum will be run separately from Magasin du Nord.

Illum reported a profit and 11% gain in sales the first three months of 2005.

Skarphéðni Berg Steinarssyni from Nordic Investment at Baugur Group said the Danish retail market is increasing and they believe in Illum because it’s a well known brand in Denmark.

Icelanders invest in Denmark and UK

Icelandic companies have been investing heavily in Denmark for the last few years. Recently the Fons Investment ehf. bought the Danish airlines Sterling Air and Mearsk Air. Eimskip, a shipping company in Iceland, recently bought the shipping division of Mearsk. I-Holdings have been investing heavily in the Denish retailer market.

Baugur Group, as well as FL Group, have been investing in the UK market. FL Group has bought 11% in easyJet.com and has shown an interest in buying more. Baugur Group has been investing in the retailer market and has bought among other things Iceland supermarket chain as well as Hamleys, a well known toy store.

Friday, December 17, 2010

North Korea has warned of “self-defensive blows” to South Korea if they participate in joint, live-fire military exercises with the United States, scheduled to begin in the next few days. The U.S. and South Korea will be taking part in a one day, live-fire exercise on Yeonpyeong Island, the island which was shelled by North Korean artillery on November 23. Nearly 200 rounds of artillery were fired at the island. Four people were killed and another 14 were injured in the attack. South Korea had been taking part in annual military exercises with the U.S., off the island’s west coast when the attack occurred. They returned fire, firing nearly 80 rounds of artillery, but no damage was reported on the North Korean side.

“Second and third self-defensive blows that cannot be predicted will be dealt. The intensity and range of the firepower will create a situation more serious than one on Nov. 23,” said a statement released by the North Korean government via the Korean Central News Agency (KCNA), the country’s main news agency. It accused the two nations of creating “hysteria of war of aggression against the DPRK, escalating the military tension and confrontation.” The nation’s official website Uriminzokkiri, warns that “if war breaks out, it will lead to nuclear warfare and not be limited to the Korean Peninsula.”

North Korea further demands the exercises be canceled saying, “the South Korean puppet warmongers must immediately cancel the provocative coastal live-fire drills planned on Yeonpyeong.” The country considers any exercises that take place on Yeonpyeong Island, to be a violation of their territory.

According to the U.S. State Department, the exercises are part of regular drills between the U.S. and South Korea and are not provocative.

“These are routine exercises. There’s nothing provocative or unusual or threatening about these exercises. The North Koreans have been notified about what South Korea plans to do,” said Philip J. Crowley, a spokesman for the State Department. The U.S. and South Korea have no plans to cancel the exercises.

Tuesday, April 3, 2007

The discovery of an old World War II bomb in a construction site has caused at least 1000 residents in Plymouth located in South-West England, to be evacuated.

“Evacuations are being carried out of properties within 100m [328ft] of the scene. Properties within the 100m-300m [328-984ft] zone are being advised to open windows and draw curtains,” said a spokesman for the police department in Plymouth.

Workers on the site discovered the bomb at about 10:30 a.m. local time in Plymouth, England on Brentor Road.

Reports say that the bomb is sticking out of the ground by about 6 inches, and weighed an estimated 113 kilograms, or 250 pounds, but could have weighed as much as 500 pounds.

“The item was protruding about six inches from the ground and was described as being up to 10-inches in diameter,” said a spokesman for the Devon and Cornwall Police.

The Army bomb disposal team from Wales is currently trying to figure out what to do with the bomb and it could take several hours before authorities can dispose of it. Reports say that the bomb will be taken to the ocean to be detonated.

“The precise nature of this operation and any potential route are yet to be confirmed,” added the spokesman.

Sunday, January 27, 2008

Viktor Schreckengost, the father of industrial design and creator of the Jazz Bowl, an iconic piece of Jazz Age art designed for Eleanor Roosevelt during his association with Cowan Pottery died yesterday. He was 101.

Schreckengost was born on June 26, 1906 in Sebring, Ohio, United States.

Schreckengost’s peers included the far more famous designers Raymond Loewy and Norman Bel Geddes.

In 2000, the Cleveland Museum of Art curated the first ever retrospective of Schreckengost’s work. Stunning in scope, the exhibition included sculpture, pottery, dinnerware, drawings, and paintings.