Friday, November 30, 2007

Christine Comer resigned this month as the director of the science curriculum for the Texas Education Agency‘s (TEA) director after more than nine years. Comer said her resignation was due to pressure from officials who claimed she had given the appearance of criticizing the teaching of intelligent design.

According to documents obtained by the Austin American-Statesman, “Comer was put on 30 days paid administrative leave shortly after she forwarded an e-mail in late October announcing a presentation by Barbara Forrest, a critic of the intelligent design/creationist movement. Forrest served as an expert witness at the Kitzmiller v. Dover Area School District trial. At Dover, intelligent design was ruled “a religious view, a mere re-labeling of creationism, and not a scientific theory.” There is widespread scientific support for evolution, while creationism has been described as pseudoscience by the scientific community.

Comer’s resignation comes shortly ahead of the TEA’s State Board of Education (SBOE) reviews of the Texas Essential Knowledge and Skills (TEKS), which determine what should be taught in the classrooms and what textbooks are bought.

The advocacy group Texas Citizens for Science have released a statement saying, in part, “The real reason [Comer] was forced to resign is because the top TEA administrators and some SBOE members wanted her out of the picture before the state science standards—the science TEKS—were reviewed, revised, and rewritten next year. Plans are underway by some SBOE members and TEA administrators to diminish the requirement to teach about evolutionary biology in the Biology TEKS and to require instead that biology instructors ‘Teach the Controversy’ about the ‘weaknesses’ of evolution, that is, teach the Creationist-inspired and -created bogus controversy about evolution that doesn’t exist within legitimate science.”

Professor PZ Myers, biology professor at the University of Minnesota, Morris, wrote that Forrest is “exactly the kind of person boards of education ought to consult before going down the road of attempting to legislate religion into the public schools.”

In reaction to the news Forrest told National Center for Science Education, “In my talk, I simply told the truth — about the history of the ‘intelligent design’ movement, about the complete rejection of its claims by the scientific community, and about the Kitzmiller trial and my involvement in it. Maybe the TEA can’t afford to take a position on what constitutes good science education — maybe it must remain neutral on whether or not to lie to students about evolution — but if so, that’s just sad.”

Agency officials declined to comment, saying it was a personnel issue.

Saturday, February 14, 2009

Philippine fishermen, volunteers and authorities with dozens of fishing boats have joined hands in guiding back to sea about 500 disorientated melon-headed whales that were stranded in the shallow waters near the mouth of Manila Bay delta in the Bataan Peninsula.

The gentle mammals were first spotted swimming back and forth and straying very dangerously close (about a mile or 1.6 kilometers) to the shores of the coastal towns of Pilar, Orion and Abucay 135 kilometers northwest of Manila at around at around 4:00 am on Tuesday, said Philippine Coast Guard (PCG) Commodore Luis Tuazon and Bataan Governor Enrique Garcia Jr.

The Philippines Bureau of Fisheries and Aquatic Resources (BFAR) said its has responded to the reported mass “stranding” of whales off Pilar coastal waters in the province of Bataan where the famous and historic Corregidor Island is located.

Using dozens of fishing boats with machines shut down and bare hands, more than 100 village fishermen and volunteers along with BFAR, local police and Philippine Coast Guard personnel have joined the massive rescue. With great difficulty, the emergency team has waded into the chest-deep water, clapping their hands and hitting the surface to guide and drive the whales farther away from the coastal shore to deeper waters.

“The mammals were at first thought to have been dolphins, but experts then identified them as melon-headed whales,” local veterinarian Mariel Flores said. “This type of whale can be easily mistaken for dolphins because of their size and their teeth, which resemble those of dolphins. The mammals have ears that are sensitive to large changes in pressure underwater,” she added.

“It looked like they never wanted to leave. They looked sad,” said Rodolfo Joson, a village councilor. Joson and his son, Joey, a fisherman like him, have rushed home at about 4 a.m. to report the pod sighting. “It was still dark when we waded into the water. The whales were about 200 meters from the shore. The water was up to my neck. We first checked their conditions by playing with them. They did not repel us or leave. They were making hooting sounds,” Joson explained the mass beaching. “It seemed they were running away from waters that they didn’t like. Dolphins are happy and strong creatures. They raced with ships,” he added.

A post-mortem examination has revealed that four dead whales found beached farther up north in Abucay, Bataan, include two adult females, one of which was pregnant, while the other gave birth to a calf that also died, said Dr. Lemnuel Aragones of Ocean Adventure in Subic Freeport who did the necropsy at the Bataan fisheries office in Balanga City.

This is the first time that such large numbers of dolphins had been stranded in the Philippines. “We are trying to come up with a possible explanation to this unusual occurrence. It could be that the dolphins had lost their bearings and inadvertently ended up on the shallow portion of the coast unable to extricate themselves,” said Dr Lemuel Aragones, Associate Professor at the UP Institute of Environmental Science and Meteorology.

Dr Aragones, who holds a PhD on Tropical Environmental Studies (Marine Ecology) from Australia’s James Cook University, explained that “the melon-headed whales of the dolphin family have sophisticated navigation systems that operate on a principle similar to sonar instruments used in submarines. Like humans, dolphins also follow a ‘leader’ of their pod. It is possible that the leader of this dolphin [pod] had somehow lost its way. In turn, the leader’s acoustic system, which serves as its guidance system, might have been impaired,” the marine expert elaborated.

Dr Aragones said “BFAR, UPIESM, and the Ocean Adventure Marine Park in Subic started the Philippine Marine Mammals Stranding Network (PMMSN) in 2005 as a response to cetacean strandings or beachings.” She cited the PMMSN training received by BFAR officers in Bataan during Tuesday’s mass beaching. She has asked the government to release funds for marine mammal studies.

The two adults had damaged eardrums, Alberto Venturina, the provincial veterinarian, said. “Dolphins with injured eardrums become disoriented, cannot dive for food and are too weak to swim and just flow with the current. If it’s a sick leader, the animal needs to be identified and taken out of sight of the rest of the pod so the healthy dolphins could be prodded back to sea,” he added.”The two animals were identified as melon-headed dolphins, weighing about 250 to 300 kilograms (550 to 660 pounds),” explained Venturina, adding “the third dolphin was only a month old and measured barely a meter long. Its gender had not yet been determined.”

According to Nelson Bien, head of the Fisheries Resource and Management Division of BFAR Region III, a necropsy by BFAR, the provincial veterinarian, and veterinarians from the Ocean Adventure in Subic Freeport has traced the cause of their death to drowning.

The marine doctors have determined that the marine mammals might have drowned after failing to extricate themselves from the fishing nets or “baklad,” explained Dr. Mundita Lim, director of the Protected Areas and Wildlife Bureau (PAWB) of the Department of Environment and Natural Resources (DENR). “There were no injuries to their ears, like visible lesions, but the possibility of an acoustic problem or trauma is still there,” Dr Lim explained, saying, “more tests, like analysis of tissue samples and MRI tests will have to be done to see if there were other injuries to the animals not visible externally.”

They are sending tissue samples to the University of Philippines in Los Baños, Laguna for analysis. “If it was something like climate change, then it would be a bigger environmental problem,” Lim added.

A fourth and pregnant one was also found dead in the village of Tortugas in the town of Balanga, Bataan, said Bien, saying they were investigating the incident and would conduct a “water quality and water parameter test” to determine why the dolphins beached to shallow waters. The condition of melon-headed whale found at Talisay River and taken to Ocean Adventure in Subic Freeport has improved amid forced feeding and treatment of its 2 wounds, said Nilo Ramoso, Biologist III, Pawikan Conservation Project.

Dr. Westly Rosario, BFAR Center chief in Dagupan City, has reported that BFAR personnel were also investigating a “problem in the water, probably chemical pollution,” to explain why the dolphins beached and sought shelter in the shallow waters. The dolphins have faced the same direction and their blowholes above water, they seemed to be avoiding something. “The dolphins were behaving in the same way, they have the same action. People were trying to drive them back into the sea but they refused. There could be chemical pollution somewhere which they were avoiding,” Rosario explained.

Dolphins’ disorientation is sometimes caused by the changes in earth’s magnetic field “that cause the dolphins’ navigational mechanisms to go haywire,” Dr. Edgardo Gomez, professor emeritus of the University of the Philippines Marine Science Institute, said, adding that “it could also be chemicals in the water that affected the dolphins, although this should be proven by water tests.” Philippine marine biologist Rizza Salinas said a possible cause for the stranding of large pods of distressed whales is that there could have been illegal dynamite fishing in the area.

“This is very strange. What is also unusual is they appeared disoriented. I am on my way to Bataan on board BFAR’s patrol vessel. We will look into the situation. Our patrol boats are also on their way to the area. We are also getting experts on stranding,” said BFAR director Malcolm Sarmiento Jr. Sarmiento, explaining that the highest number of stranded dolphins recorded by the BFAR was only 20 to 30. “It’s something unusual. It’s the first time that such a large pod has entered Manila Bay, and is acting strangely,” Sarmiento added.

“Most strandings are caused by seaquakes, heat wave or disturbances at sea. Such disturbances affect the pressure underwater, which subsequently affects the dolphins’ eardrums and sense of balance, leading to their “disorientation.” The creatures then will avoid diving in deeper parts of the ocean and will swim to shallow areas. They came from the north and were headed towards the South China Sea,” Sarmiento explained, adding that the unusual occurrence may have also been caused when the pod could have been following a sick or injured leader.

Sarmiento has appealed to the public not to inflict harm on the dolphins, which are considered threatened species. “Please do not harm the dolphins because they are already endangered. The authorities should also prevent the people who want to inflict harm on the creatures. They should be arrested, if needed.” Melon-head dolphins are considered threatened species — meaning they are likely to become endangered in the future.

“At around 12 noon, the dolphins were finally guided to the open seas, but residents in Hermosa near Mariveles were surprised to see the dolphins near their shoreline, but around 4:30 pm, all the dolphins have left the shoreline and swam towards into deeper waters,” said Governor Garcia.

“The dolphins swam parallel back to Abucay, Hermosa, and Manila Bay before they were eventually herded farther offshore. There are theories that this phenomenon was a result of the Monday night lunar eclipse. The Fisheries Bureau will know after their tests,” Garcia added.

Having suspected the dolphins’ habitat must have been disrupted, forcing them to flee and seek refuge in shallow waters, Senate of the Philippines Majority Leader, Juan Miguel Zubiri on Tuesday asked experts to probe the cause of the sudden appearance of more than 300 electra dolphins near the shores of Pilar town in Bataan province Tuesday morning.

Senator Zubiri wanted the experts to examine the possibility that an earthquake study, involving an undersea experiment using blasting in the South China Sea by the Lamont-Doherty Earth Observatory (L-DEO) – a collaborator of Columbia University – caused the abnormal behavior of the small whales.

Citing an International Union for Conservation of Nature research concluding that the melon-headed whales may have been distracted by the South China Sea study, forcing the dolphins to wander in the shallow waters, Senator Zubiri said that “the earthquake study is a sea floor investigation project in the exclusive economic zone that includes Taiwan, China, Japan and the Philippines for its earthquake research. On top of saving stranded dolphins, we should find the cause for the tragedy in order to avoid them in the future and to be prepared when it occurs again,” he explained.

But according to Erlinton Olavare, Philippine Institute of Volcanology and Seismology (PHIVOLCS) science research specialist, “no significant event was recorded by their stations in Bolinao, Sta. Cruz and Lubag, near Pilar at the time the dolphins were stranded Tuesday.”

Department of Environment and Natural Resources Secretary Jose L. Atienza, Jr. said Bataan Gov. Enrique “Tet” Garcia on Wednesday confirmed there was dynamite fishing in his province. “I asked him [Garcia] and he confirmed it. He also said he was battling this illegal activity,” said Atienza. “The causes of the acoustic trauma could have been sound waves caused by dynamite fishing or sounds emitted by passing ships or seaquakes,” Gov. Garcia said.

“Dolphins are a ‘cohesive’ group and that they follow where their leader takes them. If the leader of the dolphins was sick, then the animal could have committed a “navigational error” and led the rest of the group to shore,” said the Whale and Dolphin Conservation Society (WDCS).

“The pod of melon-headed whales (dolphins) on Manila Bay were injured by a rather nasty group of more than 120 undersea earthquakes. The swarm started with a small magnitude-4.5 event on December 21, 2008. Things got red-hot on January 3, 2009 when a magnitude-7.6 event erupted near the water’s edge on Papua Island in Indonesia, 700 miles southeast of Davao City in Mindanao. The 7.6 magnitude quake was followed by more than 120 major aftershocks each one capable by itself of inflicting injury on a pod of dolphins,” said Capt. David Williams, a retired marine mammal researcher, a commercial sea captain for 40 years and active whale conservationist.

Capt. Williams explained that whales and dolphins have small air sacs (pterygoid sinuses) that surround each inner ear and help then sense sound direction underwater. A damaged pterygoid air sac results in the loosing of echonavigation and echolocation. “In summary, my Seaquake Theory indicates that barotrauma, as a result of exposure to potent earthquake-induced changes in ambient pressure, solves the centuries-old mystery of why whales and dolphins mass-strand on beaches around the world,” Capt. Williams concluded.

An explosive blast and explosive decompression create a pressure wave that can induce barotrauma. The difference in pressure between internal organs and the outer surface of the body causes injuries to internal organs that contain gas, such as the lungs, gastrointestinal tract, and ear.

According to the Natural History Museum experts, whale and dolphins can become confused, mis-read the Earth’s magnetic fields, fear certain sounds and get lost. Since 1913, it has investigated all strandings, more than 11,000 so far, and it runs the UK Whale and Dolphin Stranding Scheme.

New Zealand‘s Project Jonah has claimed that the largest recorded beach stranding was in 1918 when 1,000 pilot whales were stranded on New Zealand’s Chatham Islands.

The last mass beaching in the Philippines was in 1956 when around 12 sperm whales were stranded in a coastal area in Capiz, amid at least 10 yearly strandings that happened in the country involving only one or two animals that were either sick or dying.

Last January this year, Filipino fishermen have also rescued an endangered sea cow. The fishermen aided the beached sea cow to the deep sea, according to the Worldwide Fund for Nature.

The Melon-headed whale (Peponocephala electra; many-toothed blackfish and electra dolphin) is a cetacean of the oceanic dolphin family (Delphinidae). As small members of the dolphingroup, it is closely related to the Pygmy Killer Whale and Pilot Whale, and collectively these dolphin species are known by the common name blackfish.

The tender mammal can grow up to 2.7 meters (9 feet) and weigh as much as 210 kilograms (460pounds). With black triangular “mask” on its face, it appears dark gray to black in color, has no discernible beak and its head is shaped like a rounded melon, thus the name. Its primary diet is squid and fish. The Melon-headed whale lives well off-shore in all the world’s tropical and sub-tropical oceans.

At the northern fringes of its range it may also be found in the warm currents of temperate waters. Ordinarily, however, it is found beyond the continental shelf between 20° S and 20° N. The Melon-headed whale is widespread throughout the world’s tropical waters, although not often seen by humans on account of its preference for deep water. It has been found in Ireland, Hawaii and Cebu, in the Philippines.

As social species, they are covered by the Marine Mammal Protection Act of 1972 in the United States. In July 2004, between 150 and 200 melon-headed whales occupied the shallow waters of Kauai island in Hawaii for over 28 hours, after which, they were rescued and guided to deeper water. This incident may have been related to nearby United States Navy sonar exercise.

The International Union for Conservation of Nature (IUCN) which includes the melon-headed whales in its Red List of threatened species said that the number of whales involved in mass stranding had increased in the last 30 years.

“The melon-headed whales are likely to be “vulnerable” to loud sounds, such as those generated by navy sonar and seismic exploration. Evidence from stranded whales also has indicated that they may have died after swallowing plastic items. It has been predicted that the whales will be affected by global climate change, but the impact is still unclear,” the IUCN explained.

Wednesday, January 4, 2017

A joint research team from the University of Calgary, American Museum of Natural History, and Florida State University announced on Monday that the eggs of non-avian dinosaurs such as the duck-billed dinosaur took as long as six months to hatch, far longer than had previously been believed.

Bird eggs incubate for 11 to 85 days, about half the time of most other egg-laying vertebrates. Scientists had thought dinosaur eggs were more like those of modern birds than modern reptiles, but this long hatch time is far more reminiscent of monitor lizard than magpie.

The scientists reached this conclusion by comparing CT scans of the teeth of dinosaur embryos of two different species, the Protoceratops andrewsi, which had eggs weighing under 200 grams, and Hypacrosaurus stebingeri, a type of duck-billed dinosaur that had eggs twenty times that size. They observed the von Ebner lines, patterns that form in vertebrate teeth as they grow, to determine how long the overall developmental process was taking. “They’re kind of like tree rings, but they’re put down daily,” said Florida State University co-author Gregory Erickson. “And so we could literally count them to see how long each dinosaur had been developing.” They found the Protoceratops embryo was about three months old and the Hypacrosaurus about six months.

According to the research team, this may be one reason why dinosaurs did not recover after the Cretaceous-Paleogene extinction event 65 million years ago. Both the eggs and any parents guarding them would have drawn the attention of predators and been unable to flee floods or other problems. Guardians might not have been able to move far to find food. This, researchers say, would have put dinosaurs at a disadvantage over animals with quicker-hatching eggs and their mammalian competitors.

Natural History Museum Curator and study co-author Mark Norell cites advances in imaging technology as the reason why this study is being published today: “We know very little about dinosaur embryology, yet it relates to so many aspects of development, life history, and evolution, [b]ut with the help of advanced tools like CT scanners and high-resolution microscopy, we’re making discoveries that we couldn’t have imagined 20 years ago.”

The research team plans to study more fossilized dinosaur embryo skeletons to confirm their findings. Specifically, the current study did not include the skeleton of a velociraptor or any other dinosaur considered closely related to birds.

Thursday, January 24, 2013

A group of researchers published a paper about their discovery of a new species of Madagascar mermaid skink lizards last December. The species is the fourth forelimbs-only terrestrial tetrapods species known to science, and the first one which also has no fingers on the forelimbs.

The species was collected at Marosely, Boriziny (French: Port-Bergé), Sofia Region, Madagascar. The Sirenoscincus mobydick name is after the existing parent genus, and a sperm whale from the 1851 novel Moby-Dick by Herman Melville.

This week, Wikinews interviewed one of the researchers, French zoologist Aurélien Miralles, about the research.

((Wikinews)) What caused your initial interest in Madagascar lizards?

Aurélien Miralles: Well, I would say that since I am a child I am fascinated by the biodiversity of tropical countries, and more especially by reptiles. I did a PhD on the evolution and systematics of skink lizards from South America. Then, I get a Humboldt grant to do a postdoc in Germany, at the Miguel Vences Lab, in order to study Malagasy skinks. Madagascar being a fabulous hotspot for reptiles (and not only for reptiles actually), it was a very nice opportunity. Professor Vences proposed me to associate our complementary fields of expertise: he is expert in herpetology for Madagascar, and I am expert in skinks lizards (family Scincidae). It was a very fruitful experience, and many other results have still to [be] published.

((WN)) How was the new species discovered?

AM: By a very funny coincidence actually. In 2010, I went to Madagascar for a long trip through the south of the island, in the semi-arid bush for collecting lizards and snakes samples. Then, during the last days, just before coming back to Germany, I have visited by coincidence the zoological collection of the University of Antananarivo. In that place, I found an old jar of ethanol with two weird little specimens previously collected by a student who didn’t realize it was something new. Being expert on skinks, I immediately recognised it was something very probably new, very different from all the other known species.

((WN)) What does “Sirenoscincus” stand for?

AM: I am not the author of the genus name Sirenoscincus. This genus name was already existing. It has been described by Sakata and Hikida (two Japanese herpetologists). “Sireno” means mermaid. “Scincus” means skinks, a group of little lizards on which I am particularly focusing my studies. So, Sirenoscinus means “mermaid skink”, in reference to [the] fact it has forelimbs but no hindlimbs.

((WN)) How deep underground do the lizards live?

AM: Hard to answer this question because nothing is known on the ecology of this species. But more reasonably, we can hypothesize, by comparison to similar species of skinks, that it is probably living just under the sand surface, [a] few centimeters deep, probably no more, or below [a] rock, leaf litter, or piece of dead wood.

((WN)) What do the lizards eat?

AM: Again, by analogy, I would say most likely small invertebrates (insects, larvae, worms etc…).

((WN)) What equipment was used during the research?

AM: Classic equipment (microscope) and also a state-of-the-art device: a micro CT-scan. It is a big device producing [a] 3D picture of the internal structure without damaging the specimen. It is actually very similar to the scanner used in human medicine, but this one is specially designed for small specimens. Otherwise, I am currently studying the DNA of this species and closely related species in order to determine its phylogenetic position compared to other species with legs, in order to learn more about the evolutionary phenomena leading to limb loss.

((WN)) There are several news sources that have a photo of the species. Is it a photo as seen in a CT-scan?

AM: No, this picture showing a whitish specimen on a black background is not a CT-scan. It is a normal photograph of the collection specimen preserved in alcohol (the one that was in the jar). You can see the complete of picture (including CT-scan 3D radiography, drawing…) in the original scientific publication.

((WN)) Do you know when the newly discovered mermaid skink species was put into the jar? Do you have its photo (of the jar)?

AM: No, I have no picture of the jar. The specimen has been collected in November 2004.

((WN)) What were the roles of the people involved in the research? What activity was most time-consuming?

AM: As first investigator, I did most of the work…and the longest part of the work was to examine closely related species in order to do comparisons…and also to check the complete bibliography related to this topic and to write the paper.

Mrs Anjeriniaina is the student who […] collected the specimen a couple of years ago.

Mrs Hipsley and Mr Müller learnt me how to use the CT-scan, and helped me concerning some point relative to internal morphology. Mr Vences helped me as supervisors. Additionally, all of them have corrected the article, and gave me many relevant advices and corrections, thus improving the quality and the reliability of the paper.

((WN)) Did you get in touch with an external entity to get the new species officially recognised?

AM: No. In zoology, it is only needed to publish the description of a new species (and to give it a name) in a scientific journal, and to designate a holotype specimen (= specimen that will be the official reference for this species), to get this new species “officially” recognised by the scientific community. That does not mean that this new species is “correct” (it might be invalidated by subsequent counter-studies), but that means that this discovery and the new name of [the] species are officially existing.

((WN)) Are there any further plans on exploring the species habitat and lifestyle?

AM: No, not really for the time being, because ecology is not our field of expertise. But other studies (including molecular studies) are currently in progress, in order to focus on the phylogenetic position and the evolution of this species.

Friday, October 19, 2007

YouTube announced that Taiwan Traditional Chinese website has been released yesterday in Taipei City, Taiwan, and the unique web address will be shown as “www.youtube.com.tw” or “tw.youtube.com”. Users from YouTube Global Sites can access Taiwan Site. This site launch will be a benefit for users preferring reading Chinese more than other languages.

In the press conference, co-founder Steve Chen explained the reason choosing “.tw” address, “With lots of good experiences using Traditional Chinese Site in Hong Kong, I think Taiwan should also be. We improved search functions to find more in Taiwan.” He remarked. “YouTube has lots of international sites in many countries including Taiwan, with a keyword, you can find lots of different results in different sites.” YouTube International Manager Sakina Arsiwala said.

Not only the launch by the performance of Eight Generals and Steve Chen, YouTube also invited China Television Co., CommonWealth Magazine, Lion Travel Co., Ltd., and Taiwan Broadcasting System to share experiences of partnership. “We should learn some conceptions on sharing and public service needed in this networking era.” Yuan-hui Hu (President and CEO of Public Television Service, Taiwan) remarked at the Partner Panel of the Press Conference.

After the Press Conference, YouTube held launch and site experience activities at Xinyi Plaza of Shin Kong Mitsukoshi and invited registered users participating in “Beautiful Taiwan” online video competition.

Friday, October 5, 2007

Richard Roberts, the President of Oral Roberts University, and his wife, Lindsay Roberts, are accused of illegal political contributions, financial wrong-doing, and wrongful firings in a lawsuit filed Tuesday.

The lawsuit was filed by three former professors who claim “they were wrongfully dismissed after reporting the school’s involvement in a local political race.” According to KTEN television news, “Roberts’ statement says personal expenses are charged to him and he personally pays them on a monthly basis.” On October 3, Roberts “told students and faculty during his weekly chapel Wednesday that the lawsuit is about intimidation, blackmail and extortion.”

Richard has been president of ORU since his father, Oral Roberts university founder and former faith healer, “semi-retired” in 1993.

Monday, September 7, 2015

The US economy added 173,000 jobs in August, the Bureau of Labor Statistics reported on Friday. The unemployment rate fell from 5.3 to 5.1 percent, the lowest since April 2008.

Although August job gains were lower than most economists forecast, job growth numbers for June and July were revised upwards by a combined 44,000. Average job gains over the past three months stand at 221,000, compared to March-May’s 189,000 monthly average. Over the past twelve months, job growth has averaged 247,000 per month.

Average hourly earnings rose 0.3 percent, or 8 cents, marking the largest increase in earnings in seven months. Hourly earnings had risen by 6 cents in July. Wages have risen by 2.2 percent over the past year.

Job growth in August was primarily concentrated in the health care and social assistance, financial activities, and professional and business services sectors. Those three areas of the economy added a combined 108,000 jobs. Food service and drinking places employment increased by 26,000 over the month, and other economic sectors saw employment hold steady. Manufacturing, on the other hand, saw employment decline by 17,000 in August. A stronger dollar and worldwide economic weakness make US exports less desirable, leading to a flattening in manufacturing employment so far this year after steadily rising in the early years of the US economic recovery.

The solid overall job gains led analysts to slightly raise expectations for a decision by the Federal Reserve to raise interest rates this month. Investors raised the likelihood of a September rate increase from 26 percent before the jobs report to 30 percent, and stocks dropped by over one percent on Friday. “The payrolls data is certainly good enough to allow for a Fed rate hike in September,” said Deutsche Bank’s head of currency strategy, Alan Ruskin. “The big question is still whether financial market volatility will scupper the plans.”

“This is the first time the market has looked at a Fed meeting and really has no idea what the Fed is going to do,” said Mark Kepner, a New Jersey equity trader with Themis Trading. “Right now you’re looking at the overall uncertainty and that’s what’s hanging on the market. I don’t think this number in and of itself changes how somebody’s going to vote.”