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Monday, April 21, 2014

Scientists at Chicago’s Field Museum and New York’s American Museum of Natural History have discovered three new species of yellow-shouldered bats, genus Sturnira, in the Neotropics. On Wednesday open-access journal ZooKeys published their paper on two of the new species, Sturnira bakeri and Sturnira burtonlimi. The two new species were previously confused with S. ludovici, and S. lilium and S. luisi, respectively. With the discovery, genus Sturnira now has the most species of any genus in family Phyllostomidae, the leaf-nosed bats.

Species S. bakeri was named after Dr. Robert J. Baker, who “has made enormous contributions to our [Authors of the ZooKey paper] understanding of bats, particularly to the evolution of Neotropical phyllostomids”; and S. burtonlimi after Dr. Burton K. Lim, who “collected the type series of this species and has made many other important collections throughout the Neotropics and beyond”, the authors noted in the paper.

Within the New World tropics, the distribution range of the genus, the new species’ known living areas are in Costa Rica and Panama for S. burtonlimi, and Western Ecuador for S. bakeri. The researchers identified differences between different specimens, including those in their teeth, skull shapes, and DNA sequences.

Wikinews interviewed one of the chiropterologists, Paúl M. Velazco of the American Museum of Natural History, about the study.

((Wikinews)) The Sturnira genus now has 22 species, over 1.5 times larger than it was a year ago (14 species). Who contributed to this change? Did you participate throughout the entire process, or only the discovery of the last 2 species?

Paúl M. Velazco: The last Mammal Species of the World (Simmons, 2005) recognized 14 species for Sturnira. Since then three new species have been described [S. sorianoi Sánchez-Hernández et al., 2005; S. koopmanhilli McCarthy et al., 2006; and S. perla Jarrín-V. and Kunz, 2011] and one subspecies was elevated to the species level (S. hondurensis) by Gardner (2008). This brought the number of species of Sturnira to 18 by 2011. Along with my coauthor Bruce Patterson, we generated the most comprehensive phylogeny of the genus. For this we sequenced two nuclear and three mitochondrial genes from the liver or muscle tissue that had been frozen or preserved from each bat specimen, isolating nearly 5,000 base pairs of DNA. These sequences were obtained from specimens we have collected in the past (38) and from tissues we borrowed from different natural history collections. We published this phylogeny last year in the journal Molecular Phylogenetics and Evolution. Results of this study found that two subspecies of Sturnira lilium should be recognized as valid species (S. parvidens and S. paulsoni). Additionally we found three new species, two of them described in the ZooKeys paper. The third one hopefully will be published later this year.

((WN)) The genus is called Sturnira Gray in the paper. I’ve not seen extra adjectives in genus names, before. What is the context for such name?

PMV: Usually in papers that deal with taxonomy and nomenclature, the first time that a genus or species is mentioned in text is accompanied by the authority that describes that taxon. In the case of Sturnira, it was Gray in 1842 that named the genus.

((WN)) What caused your initial interest in the question in the genus? When did you become interested?

PMV: I have been studying bats for the past eighteen years and I am especially interested in the family Phyllostomidae that is endemic to the Neotropics. This family includes more than 160 species. It is the most diverse family of bats in the Neotropics, which together exhibits more variation in morphological features and feeding ecology than any other family-level group of mammals. Phyllostomid bats exploit an unusually diverse array of feeding habits including sanguivory, insectivory, carnivory, omnivory, nectarivory, pollennivory, and frugivory. Because of all mentioned before, phyllostomids are a really interesting group to work with. Sturnira and Platyrrhinus are members of this family.

((WN)) The paper mentions that the genus is now the most speciose genus in the Neotropical family Phyllostomidae. What genus did it beat? How many species does it include?

PMV: The other genus with the most species in the family is Platyrrhinus. Currently, it has 20 species, but soon it will increase to 21. Along with another colleague, Burton Lim, we have a paper in press describing a new species based on molecular and morphological data from the Guianan Shield.

((WN)) What equipment did you use?

PMV: For the ZooKeys paper, we examined several specimens under the stereoscope. The molecular phylogeny gave us the separation between species, from there our job was to focus on finding morphological differences between these groups.

((WN)) Did you conduct field study to identify the species’ habits? If so, where and how did you do that?

PMV: I have done fieldwork in Belize and Peru, and my coauthor did field work in Brazil, Ecuador, and Peru, where we collected several specimens of Sturnira (including the third species that has not been described yet). But the two species that were described in the ZooKeys paper are based on specimens collected by our colleagues Dr. Robert Baker from Texas Tech University and Dr. Burton Lim from the Royal Ontario Museum.

((WN)) How do you isolate of the living area of the new species from the living area of the old species?

PMV: We used the phylogeny of Velazco and Patterson 2013 (Molecular Phylogenetics and Evolution) as a framework for this.

((WN)) How long did the study take? What has been the most time-consuming activity?

PMV: It took almost a year. The most time consuming part was spending several hours behind the stereoscope looking for the diagnostic characters.

((WN)) Who participated in the study? What were their roles?

PMV: Dr. Bruce Patterson from the [American] Museum of Natural History and I. I was the one in charge of finding the diagnostic characters and together we both worked on the manuscript.

((WN)) Who do you collaborate with internationally about your study?

PMV: For this study I collaborated directly with Dr. Bruce Patterson from the Field Museum of Natural History, but studies like this cannot be completed without the contribution of scientific collections. We used specimens from the American Museum of Natural History, Carnegie Museum of Natural History, Louisiana State University, Museum of Southwestern Biology, Museo de Historia Natural de la Universidad Nacional de San Marcos, Museo de Zoología of the Pontificia Universidad Católica del Ecuador, Museum of Vertebrate Zoology at Berkeley, Royal Ontario Museum, Texas Tech University, and the National Museum of Natural History.

((WN)) What future research do you plan?

PMV: To keep doing what I love, which is going to the field, working at collections, and collaborating with the wonderful collaborators I have, all of this is an effort to try to understand bat diversity and evolution in the Neotropics, especially why phyllostomid bats are so successful at this. There is still much to discover, and hopefully we could, in time, implement conservation actions for species that have small distributions.

Monday, September 24, 2007

Marion Schaffer is running for the Green Party of Ontario in the Ontario provincial election, in the Oakville riding. Wikinews’ Nick Moreau interviewed her regarding her values, her experience, and her campaign.

Stay tuned for further interviews; every candidate from every party is eligible, and will be contacted. Expect interviews from Liberals, Progressive Conservatives, New Democratic Party members, Ontario Greens, as well as members from the Family Coalition, Freedom, Communist, Libertarian, and Confederation of Regions parties, as well as independents.

Friday, August 19, 2005

Drug maker Merck & Co. was found liable for a person’s death concerning the use of the pain medication Vioxx, according to a jury verdict in a Texas court.

The plaintiff’s case, headed by the widow of Robert Ernst, who died in 2001 of an irregular heartbeat and of clogged arteries while on the drug Vioxx, was successfully awarded $253.4 million dollars. Vioxx was pulled from the shelves in 2004 after a study discovered it could double the risk of a heart attack or stroke if taken for longer than 1.5 years. However, the US government agency, the FDA, decided in February of this year to allow the product back on the shelves.

Merck’s stock price dropped 10% within minutes of the verdict being announced, and continued to fall hours after. There are in excess of 4,200 other Vioxx-related lawsuits pending across the USA.

The company plans to appeal the decision.

Sunday, January 10, 2010

Chinese officials have said that their country’s exports surged last December to edge out Germany as the world’s biggest exporter.

The official Xinhua news agency reported today that figures from the General Administration for Customs showed that exports jumped 17.7% in December from a year earlier. Over the whole of 2009 total Chinese exports reached US$1.2 trillion, above Germany’s forecast $1.17 trillion.

Huang Guohua, a statistics official with the customs administration, said the December exports rebound was an important turning point for China’s export sector. He commented that the jump was an indication that exporters have emerged from their downslide.

“We can say that China’s export enterprises have completely emerged from their all-time low in exports,” he said.

However, although China overtook Germany in exports, China’s total foreign trade — both exports and imports — fell 13.9% last year.

Thursday, February 5, 2009

Bill Gates, the founder of computer software company Microsoft, tried to bring attention to malaria while speaking at the TED (Technology, Entertainment, Design) conference on Wednesday February 4 in Long Beach, California. He did so by releasing a “swarm” of mosquitoes from a jar, into the crowd.

“Malaria is spread by mosquitoes. I brought some. Here I’ll let them roam around. There is no reason only poor people should be infected,” said Gates as he opened the jar. After waiting a minute, Gates then stated that the mosquitoes were not infected with the disease.

“There is more money put into baldness drugs than into malaria. Now, baldness is a terrible thing and rich men are afflicted. That is why that priority has been set,” said Gates jokingly.

The prank was first reported by Dave Morin, Facebook’s manager, on the social networking and micro-blogging site Twitter. Morin stated that “Gates just released mosquito[e]s into the audience at TED and said: ‘Not only poor people should experience this,'” followed by a smiley face.

Gates donated nearly US$170 million to the PATH Malaria Vaccine Initiative in September 2008 to fund research to fight malaria, and develop a vaccine.

The TED conference, held annually, features, among other things, the latest in technology, science, and politics. People who have previously spoken at the conference include former United States president Bill Clinton and former vice president Al Gore.

See the discussion page for instructions on adding schools to this list and for an alphabetically arranged listing of schools.

Due to the damage by Hurricane Katrina and subsequent flooding, a number of colleges and universities in the New Orleans metropolitan area will not be able to hold classes for the fall 2005 semester. It is estimated that 75,000 to 100,000 students have been displaced. [1]. In response, institutions across the United States and Canada are offering late registration for displaced students so that their academic progress is not unduly delayed. Some are offering free or reduced admission to displaced students. At some universities, especially state universities, this offer is limited to residents of the area.

Tuesday, January 20, 2009

Two explorers have set off from Knightsbridge, London Wednesday morning (0900 GMT) in a propeller-powered dune buggy heading for the Sahara. Giles Cardozo, age 29, from Dorset, with chief pilot and expedition leader Neil Laughton, age 45, an ex-SAS officer, will fly and drive the amazing two-seater vehicle more than 6,000-km (3,750-miles) to fabled Timbuktu on February 20.

“I just can’t wait to see their faces when we fly in and start playing football with them. I don’t think they will be able to believe somebody in a flying car has just visited them,” ‘extreme golfer’ Mr Laughton said before the departure. Timbuktu (Timbuctoo; Koyra Chiini: Tumbutu; French: Tombouctou) is an isolated city in Tombouctou Region, in the West African nation of Mali. They will traverse Europe and Africa about 42 days to arrive at the city in Mali, West Africa before returning home via Senegal.

The home-made 450-kilogram Skycar has been designed by Cardozo in just 18 months. It is the world’s first road legal bio fuelled flying car. It is a four cylinders modified Rage Motorsport off-road racing buggy which was approved by the government last month. It runs on bioethanol and is powered by a modified 140bhp Yamaha R1 superbike engine with a lightweight automatic continuously variable transmission from a snowmobile.

The team invested about £250,000 ($380,000) to make the 1000cc engine Skycar desert-proof. In its maiden voyage, the flying car will be escorted by up to 13 people convoy including an eight-wheel truck, two Toyota Land Cruiser 4x4s and several motorbikes. It has left London’s Sheraton Park Tower hotel, heading through the capital to Dunsfold airfield in Surrey.

The team had initially planned to take the air route across the English Channel, but the 35km flight was vetoed by aviation authorities. Skycar is required by law to obtain a license from Britain’s Civil Aviation Authority (CAA), including a permit from the British Microlight Aircraft Association (BMAA). Skycar spokeswoman, Charlie Bell, however clarified that the team was “in liaison with the CAA and they are looking to finalize the permit,” adding that it is in order for the rest of the trip.

The Skycar will thereafter fly over the high-altitude Pyrenees near Andorra, and would cross over the 14-km (nine-mile) Strait of Gibraltar. The prepared journey also includes the route through Mauritania, Atlas Mountains in Morocco and into Mali. It will further cross the harsh environment of Sahara’s remote “Rub’ al Khali” (empty quarter), for up to two weeks amid real fears of terrorist attacks.

The expedition will not have an easy task, especially since the Skycar will be tested to the limits amid punishing operating environments and weather conditions. “Clearly the reliability of the car is crucial,” said Mr Laughton. “We’re going to have to cope with wind chill temperatures as low as -30 deg C and blistering heat of up to 50 deg C. But it’s been fully tested at a secret location and it 100 per cent works,” he added.

The Parajet Skycar is a prototype flying car. It was developed by British paramotor manufacturer Parajet. The flying car utilizes a paramotor and a parafoil attached to a modified dune buggy to achieve sustained level flight. Should the engine fail, the vehicle can glide back to the ground. Should the canopy rip, an emergency reserve parachute would be deployed. It requires three minutes to convert it from a car to an aircraft. The prototype runs on biodiesel and is fully road-legal.

In 2004 British engineer Giles Cardozo, a paramotor manufacturer, has invented a fan-powered flying car to prove the Skycar is real and works. “I started making a paramotor on wheels that you sit on and take off and it suddenly occurred to me, ‘Why not just have a car that does everything?’” Cardozo said. His Wiltshire-based company Parajet built the paramotor that the adventurer Bear Grylls did fly near Everest in 2008. In 1998, Grylls, aged 23, became the youngest British to ascend Mount Everest. In May 2007, Grylls and Cardozo departed from Pheriche, about 32 kilometres south of Mount Everest.

Cardozo has claimed he may finally have made it. “I’ve been dreaming about making flying cars since I was a boy, thinking about all the ways it could be done and seeing how all the other people in the world have done it wrong. No one’s ever made one that really does work that you can go out and buy. But here’s the ultimate solution: it’s cheap, it’s safe, it works, all the technology’s already there. So I pushed ahead and thought, ‘We’ve got to do it’,” he said.

If the Skycar becomes successful, Cardozo’s company plans a limited production with a selling price of £35,000 to £40,000 for a standard model and £60,000 for a high-performance sports version. “It will be a serious aircraft but also a proper road machine, with acceleration to match your average sports car,” says Cardozo. “I’m not going to sell millions of them but even if we sell 20 we’ll be laughing,” he added.

The explorers, with the aid of sponsors, supporters and benefactor Sir Ranulph Twisleton-Wykeham-Fiennes, 3rd Baronet OBE (known as ‘Ranulph (Ran) Fiennes’), have aimed to raise more than £100,000 for some charities including an African orphanage.