landscape 2 1

Tag: "landscape" at biology news

Highly adaptable genome in gut bacterium key to intestinal health

...rate mechanism for sensing changes in its nutrient landscape and quickly changing its dietary preferences so that it can use whatever is most plentiful. In fact, it can call on a larger repertoire of genes related to carbohydrate digestion than any other microbe we know of." Next, the researchers will use ger...

Reservoirs may accelerate the spread of invasive aquatic species, researchers say

Just as disturbance makes a landscape susceptible to invasion by alien plant species, the construction of reservoirs around the globe could be contributing to the accelerating spread of exotic aquatic species, according to a Forum article in the June 2005 issue of BioScience. John A. Hav...

Small species back-up giant marsupial climate change extinction claim

...or are species found in open areas, suggesting the landscape was evolving towards open grassland. "By the latest Pleistocene species dependent on wetter conditions disappear from the fossil record while animals such as long-nosed bandicoots that aren't habitat specific remain." Analysis of sediment and ecolo...

Finding hidden invaders in a Hawaiian rain forest

...tists to detect an invader before it dominated the landscape is important to future management strategies. As a...stand the ecological effects of invasions over the landscape to develop effective control strategies, and the Asner/Vitousek work gives us valuable insights abou...

Big differences in duplicated DNA distinguish chimp and human genomes

...ound that most of the change to the overall genome landscape between chimps and humans can be attributed to large segmental duplications. Such large-scale genetic events have altered more total base pairs - about 2.7 percent of the genome - than differences from single base-pair changes, which account for abou...

Computers close in on protein structure prediction

...night while they are sleeping to search the atomic landscape for the lowest energy structure of proteins. To improve protein structure prediction further, Baker's group has also started a distributed computing project that they are hoping will be aided by members of the public. The project, called Rosetta@hom...

NASA satellite data provides rapid analysis of Amazon deforestation

...site image of the area. To make matters worse, its landscape is constantly evolving. So, scientists have learned to seek answers about this fragile ecosystem with the help of powerful eyes above - satellites. This technology continues to advance and a new study shows that NASA satellite images can allow scien...

Emerald Spectre haunts Ontario's ash forests

...d dramatically change the forest and neighbourhood landscape in eastern North America - with even more impact than Dutch elm disease. The soon-to-be published study is the first to document the invasive beetle's rate and distribution of spread from its epicentre in the Windsor-Detroit area. "In the Great La...

Study shows big game hunters, not climate change, killed off sloths

... species of mammals that roamed the North American landscape became extinct within a few thousand years, which, besides ground sloths, included mammoths, mastodons, saber-toothed tigers and giant bears, Steadman said. "It was as dramatic as the extinction of the dinosaurs 65 million years ago," he said. By u...

Shade trees getting 'scorched' by plant disease

...ts as many as 35 percent of susceptible street and landscape oaks in some central New Jersey communities. Curre..., which has a wide host range that includes common landscape ornamentals and weeds. X. fastidiosa is spread by insects, mainly sharpshooters. Symptoms of BLS ...

Mammalian Transcriptome Mapped

...al Science. The transcriptome, or transcriptional landscape as it is sometimes called, is the totality of RNA ...se sequences, says Wahlestedt, the transcriptional landscape of mammals shows this same principle may be used by nature on a massive scale to extensively modulat...

Seafloor creatures destroyed by ice action during ice ages

The ice ages made massive changes to the Earth's landscape The ice ages made massive changes to the Earth's landscape. But what was happening below the ice in the oceans? Research by marine scientists reveals that it was a time of mass destruction as whole communities of animals were wiped out by ice sheet...

Gene therapy may protect normal tissues during radiation retreatment for lung cancer

The ice ages made massive changes to the Earth's landscape The ice ages made massive changes to the Earth's landscape. But what was happening below the ice in the oceans? Research by marine scientists reveals that it was a time of mass destruction as whole communities of animals were wiped out by ice sheet...

Center releases new public survey on stem cells

...conducted September 9-19, reveals a public opinion landscape that bears little resemblance to the polarized, de...red how potential future changes in the scientific landscape might affect public opinion. Respondents were asked to imagine two scenarios - the development of a...

Underlying cause of massive pinyon pine die-off revealed

...uthwest, according to new research. The resulting landscape change will affect the ecosystem for decades. Hotter temperatures coupled with drought are the type of event predicted by global climate change models. The new finding suggests big, fast changes in ecosystems may result from global climate change. "...

A New Era of Hope for the World's Most Neglected Diseases

...rtnerships for health has dramatically altered the landscape of neglected-disease drug development. Her analysis shatters a common illusion—that industry is profoundly disinterested in developing drugs for neglected diseases. “Long-held beliefs on neglected-disease drug development activity are no longer accur...

Free-energy theory borne out in large-scale protein folding

...n be predicted within the framework of free-energy landscape theory. This has been a very controversial issue in the field of protein folding." Study co-authors also included Giovanni Fossati, assistant professor of physics and astronomy, who helped the team analyze and interpret the simulation data. ...

Sahara's edge studied from ground, air and space to improve water management

... here with rivers, lakes and plentiful rains. That landscape has vanished now, but the rains from that period progressively percolated beneath the ground to be collected in layers of water-bearing rock known as aquifers. This 'fossil water' is today used in North African nations for irrigating agriculture a...

Students discover 11,000 year old remains of Irish Elk

...0 years ago. The giant deer roamed the open tundra landscape that was widespread in northern Europe at the end ...nt remains. Environmental historians believe the landscape of the Isle of Man remained suitable for the giant deer for several more hundred years than surround...

Technique offers new view of dynamic biological landscape

...hange how researchers study the dynamic biological landscape of the cell. The technology, which is called epistatic mini array profiles (E-MAP), has already been used to assign new functions to known genes, to uncover the roles of previously uncharacterized proteins, and to define how biochemical pathways and ...

1 2