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Tag: "ground" at biology news

Ground spider diversity studied in research project

...ho is earning a master's degree, has been studying ground spider diversity, distribution and abundance in the 515-acre Lick Creek Park south of College Station. She has caught 1,000 specimens in 111 species over two years. The most common were several species of wolf spiders, she said. A total of 989 sp...

Dust to gust

...d and focused in the tunnel lift the dust from the ground and blow it toward the ocean, allowing the Bodélé valley to export the vast amount of dust that makes a life-sustaining contribution to the Amazon rainforest....

Ocean temperature predicts spread of marine species

...some species, this is a time to move from breeding ground to habitat where they'll mature," she said. But less than 1 percent of larvae survive dispersal. They are consumed by predators, encounter harsh environments or never reach their destination and starve. For endangered species, survival of some ani...

Ancient birds flew on all-fours

...dea that birds began flying by taking off from the ground while running and shows that the dinosaur-like bird Archaeopteryx soared using wing-like feathers on all of its limbs. "The discussions about the origins of avian flight have been dominated by the so-called 'ground up' and 'trees down' hypotheses," ...

NASA study: Alaskan fires affected Houston air quality in 2004

...ntown. The balloons measured ozone levels from the ground to altitudes of more than 100,000 feet, offering t...ons by NASA satellites, aircraft, and a network of ground stations provided unprecedented insight into the origins of locally poor air quality in Houston on t...

Beyond the book: Software automates access to brain atlases

...uidance. Cheng wound up rebuilding NeuART from the ground up, said Burns. The revised NeuARt II interface indexes the data in a variety of ways, including spatial maps and alphanumeric information, coming off a single interface. It includes all the information in the printed volumes, in a much more acce...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...at effectively shuttle and store more carbon below ground in their roots and the soil. Moreover, bioenergy crops re-absorb carbon dioxide emitted when biofuels are consumed, creating a cycle that is essentially carbon neutral." Poplar's extraordinarily rapid growth, and its relatively compact genome size o...

Pressured by predators, lizards see rapid shift in natural selection

... control islands. The behavioral shift from the ground to higher perches apparently caused this remarkable reversal, Losos says, adding that behavioral flexibility may often drive extremely rapid shifts in evolution. "Evolutionary biology is by its nature an historical science, but the combination of ...

New system could drastically reduce herbicide use

...isture and plant conditions, but we needed to have ground reference data to validate that information," said Tian. "But that kind of data is tedious to collect," he continued, "and it's very hot work. The grad students who collected this information stayed in the field most of the day, and one of them wa...

A key antibody, IgG, links cells' capture and disposal of germs

...re able to hijack cells and use them as a breeding ground precisely because they block the merger of phagosomes and lysosomes. It had long been known that coating these germs with IgG can restore their destruction and our recent results reveal a new branch of this IgG-led counterattack." ...

A new approach to growing heart muscle

...om use as a human heart treatment, or as a testing ground for new cardiovascular drugs, the U-M researchers say their results should help accelerate progress toward those goals. U-M is applying for patent protection on the development and is actively looking for a corporate partner to help bring the technol...

Scientists crack rhino horn riddle

...e through horn clashing and by being rubbed on the ground and vegetation. The structure of the rhino horns is similar to a pencil's tough lead core and weaker wood periphery, which allows the horns to be honed to a sharp point. The study also ends speculation that the horn was simply a clump of modified...

Nonvenomous Asian snakes 'borrow' defensive poison from toxic toads

...ly to turn and flee from danger than to hold their ground and perform a toxin-releasing defensive maneuver. "Sequestration of toxins in a specialized [neck gland] structure in a vertebrate is a remarkable finding," said William Zamer, IOS deputy director at NSF. "This finding offers new insights into the...

Pharmaceutical compounds found in nation's fresh water

... being found in septic tanks and, consequentially, ground water due to incomplete human metabolism and excre... in aquatic environments such as lakes, rivers and ground water, which can receive direct inputs of treated waste water. "We don't know what toxicological...

Salamanders suffer delayed effects of common herbicide

...ency, it is one of the most common contaminants in ground and surface water. Rohr and his colleagues Timothy M. Sesterhenn, doctoral candidate, Brent D. Palmer, associate professor, and Tyler Sager, doctoral candidate, all at the University of Kentucky, Lexington, exposed streamside salamander larvae to...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

...old PRAGMA initiative. "We will be able to hit the ground running thanks to the shared expertise, interconnected cyberinfrastructure, grid-enabled software tools and student exchange programs that have emerged out of PRAGMA." Pacific Rim institutions collaborate in PRAGMA to develop grid-enabled applicat...

Bats prey on nocturnally migrating songbirds

...eral hundreds if not thousands of metres above the ground in total darkness? To elucidate the mysterious habits of giant noctule bats, an ambitious investigation led by young scientist Ana Popa-Lisseanu, under Prof. Ibañez' supervision, was launched by Spanish research teams based in Sevilla (Doñana Biol...

Study identifies risk factors for spread of respiratory infections in hospitals

... he said, "was that the hospital can be a breeding ground for infectious disease. Nosocomial infection can amplify an infectious disease outbreak. It is very important to provide adequate space in hospital wards and implement effective infection control measures in order to avoid cross-contamination in hosp...

Is there a pilot in the insect?

...t, bird or pilot flies over land, the image of the ground below sweeps from front to back across the central...which is defined as the angular speed at which the ground contrasts move past. By definition, this angular speed is equal to the ratio of the horizontal spee...

Researchers learn what sparks plant growth

...important in plants because they are rooted in the ground and must alter their shape and size in response to their local environment. Thus, it’s a question of survival," added Chory. "It took us 10 years to develop the tools to ask the question. It is very satisfying for me to see the results." Roots and...

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