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Tag: "food" at biology news

New species of snapper discovered in Brazil

...d other shallow habitats. Juveniles requiring more food and protection live in mangroves, then migrate to reef habitat and deeper areas as adults. "Several species spend some of their lives in these different yet connected habitats," Lindeman said. "That's why it's so important to develop integrated co...

Why doesn't the immune system attack the small intestine?

...or example, which absorbs essential nutrients from food and drink and protects the body from invasive microbes, is literally teeming with bacteria, which help break down waste. The presence of so many bacteria is a potential trigger for an immune system response. Why do T cells almost always ignore the sm...

Biologists develop large gene dataset for rice plant

...erstanding of how genes work in rice, an essential food for much of the world's population. Plant biologist Blake Meyers at the University of Delaware and colleagues report their results in the March 11 on-line issue of the journal Nature Biotechnology. Using advanced gene sequencing technologies and ...

ESA launches new project to protect biodiversity

...ion people. The loss of biodiversity threatens our food supplies, energy and medicines. For instance, up to 80% of the world's population currently relies on plant and animal-based medicines for their primary health care needs. The sustainable use of biodiversity's components will not only save ecosystems...

Scientists find method to pick noncompetitive animals, improve production

...imal well-being and to securing the world's future food supply, including possibly permitting more animals...s to domesticate more species as readily available food sources, such as cannibalistic shellfish and game fish." ...

Climate change could trigger 'boom and bust' population cycles leading to extinction

...ental conditions that produce abundant supplies of food and stimulate population booms appear to set the stage for population crashes that occur when several "good years" in a row are followed by a bad year. "It's almost paradoxical, because you'd think a large population would be better off, but it turns...

Phthalates now linked to fat, related health risks

...influence the results, such as the mens?age, race, food intake, physical activity levels and smoking. The phthalate family of chemicals is used in a variety of products from cosmetics, shampoos, soaps, lotions, lubricants, paint, pesticides, and plastics. Phthalates soften plastic tubing, PVC, and are...

Protein discovery targets antibiotic-resistant bacteria

...iotic-resistant bacteria, such as those that cause food poisoning and typhoid. By solving the structure ...artin. In North America, the people treated for food poisoning with drugs tend to be elderly or “immune compromised?where there is a need for antibiotics...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

... sensors of chemicals in the water and the aquatic food chain, and to determine the origins of these chemi...s. These fish are among those commonly caught as a food source by local anglers. The experiments to determine if estrogenic substances were present in t...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...rocin AS-48, which could have a medium-term use as food biopreservative. This represents a significant advance, given that biopreservation is an innovative method in food-preservation systems based on the use of microorganisms or their metabolic products to inhibit or destroy undesirable microorganisms. ...

Bats prey on nocturnally migrating songbirds

...ure is indeed capable of exploiting the formidable food source represented by the billions of high-flying,...easonal migration. This contrasted strikingly with food composition of other European bat species which all feed exclusively on invertebrates! This find...

Mummy's amazing American maize

... Faculty of Life Sciences. "Maize is the staple food crop of the region but prior to colonisation it also had a ritual significance ?the indigenous people were amazed by maize and even worshipped it. "Given the immense changes that took place in South America following the arrival of the Europeans i...

Researchers find 6,000-year-old fossil evidence

...makes chili peppers one of the oldest domesticated food sources in the Americas. The study will be publish...t chili peppers are one of the oldest domesticated food sources in the Americas and that people in distant areas all ate them. This suggests that these grou...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...from an infected person (in pollution-contaminated food or water, for example), but hepatitis C is generally transmitted only by direct contact with infected blood. Hepatitis A produces fever, nausea and abdominal pain that can last for weeks, but rarely lead to death; hepatitis C, by contrast, often spen...

Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward

...dance of krill that are at the base of the massive food chain at the bottom of the world. "We're alrea...rop in krill in the marine environment. As a major food source for higher animals, the loss of krill will reduce resources for higher mammals and birds. ...

Mystery of fossilized trees is solved

...e fallen to the floor and decayed, providing a new food chain for the bugs living below. "This was also a significant moment in the history of the planet. The rise of the forests removed a lot of Carbon Dioxide from the atmosphere. This caused temperatures to drop and the planet became very similar to ...

QUT scientists on the way to sifting out a cure for HIV

...reatment, as well as within the pharmaceutical and food industries. Another benefit of the technology is that the alumina and titania nanofibres are made from compounds produced in abundance in Australia. "It's literally home-grown technology," he said. "Titania is a compound found in beach sand ...

Custom-made cancer cell attacks

...s growing biofuel crops on land currently used for food production. ''There's a lot of deforestation certainly going to take place in tropical regions, because those countries are going to develop biofuel businesses,'' he said. ''Already in Malaysia, Indonesia, the Philippines, the acreage of palm oil ...

Cellulosic ethanol: Fuel of the future?

...s growing biofuel crops on land currently used for food production. ''There's a lot of deforestation certainly going to take place in tropical regions, because those countries are going to develop biofuel businesses,'' he said. ''Already in Malaysia, Indonesia, the Philippines, the acreage of palm oil ...

Rewarding fat rats

...C scholarships and grants." In their studies of food reward, Shizgal's team investigated the role of leptin, a hormone that the body produces in proportion to the amount of stored fat. A person who eats a lot during holidays, for example, will make more leptin than a person who sticks to a stricter die...

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