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Tag: "mountain" at biology news

Researchers find 24 species believed new to science in Suriname rainforest

...pital. They found a virtually unexplored region of mountain savannah forest, high dryland rainforest and palm swamp with freshwater sources clean enough to support abundant fish and amphibian life. Among the 24 species believed new to science are an Atelopus frog with brilliant purple markings, four Eleuth...

Bigger horns equal better genes

...y vascularized." Found exclusively in the Alps mountain range in Europe, alpine ibex were hunted almost to extinction about a century ago for sport and the purported pharmacological properties of their horns. The last survivors were protected in an Italian national park, and the species has slowly repopul...

Caribbean frogs started with a single, ancient voyage on a raft from South America

... the species are restricted to remote and isolated mountain tops or other inaccessible areas. Some species included in the study now are believed to be extinct because of habitat degradation and possibly other causes such as climate change. A recent global assessment of amphibians found that the Caribbean I...

Tundra disappearing at rapid rate

...s a prominent landscape feature in both Arctic and mountain environments. As global temperatures continue to increase, the treeline is expected to advance but the new research shows that this shift will not always occur gradually but can surge ahead. "The conventional thinking on treeline dynamics has bee...

How trees manage water in arid environments

...t any rain is very common in southern Arizona, the mountain forest must have evolved the capability to survive...ant impact on the primary growing season for these mountain trees, because moisture is continually available from rain or snow, the tree root zones don't freeze...

Canada's new government invests $200M in the fight against the mountain pine beetle

...nt of Canada today announced measures to fight the mountain pine beetle and address its impacts on communities and forests in British Columbia. The Federal Mountain Pine Beetle Program will provide $200 million to minimize the consequences of the beetle infestation and assist in efforts to slow the infestatio...

Uganda's mountain gorillas increase in number

The most recent census of mountain gorillas in Uganda’s Bwindi Impenetrable National ...y by bringing paying travelers into the company of mountain gorillas. Four of the 30 family groups are habituated for tourism, or conditioned to tolerate the pr...

Scientists discover new species of distinctive cloud-forest rodent

...y sized area in the world. "Like other tropical mountain ranges, such as the Himalayas, Ruwenzoris, Virungas and Kinabalu, the Andes support a fantastic variety of habitats," said Bruce Patterson, MacArthur Curator of Mammals at The Field Museum. "These in turn support some of the richest faunas on the pla...

Immunization rates hit record high in poor countries

... as they fall. In cool hollows and along shady mountain streams the hemlock has grown for millennia where ...world. Some warblers only nest in hemlocks and the mountain fish depend on the trees to keep streams cool. "See all this white growth?" Costa says in his UVM...

Fungal factories may save hemlock forests

... as they fall. In cool hollows and along shady mountain streams the hemlock has grown for millennia where ...world. Some warblers only nest in hemlocks and the mountain fish depend on the trees to keep streams cool. "See all this white growth?" Costa says in his UVM...

Human preference for other species could determine whether they survive

...ious species, even invasive species. He noted that mountain goats introduced to Olympic National Park in Washington state have damaged park ecosystems, but because of their popularity it has been difficult for park managers to remove them. Likewise, while groups of conservationists gather on weekends to pull ...

ASU researchers test antibacterial effects of healing clays

...ay, they ran out of clay and moved over to another mountain and people began dying. We wanted to know why." The key to clay's variable nature seems to be its structure. "Clay is a mineral; it has a crystalline structure that is both flexible and fluid," Williams says. She likens them to very thin, two-nano...

New bird discovered on unexplored Columbian mountain

...o science was recently discovered on an unexplored mountain range in northern Colombia by a team supported by ...guies indigenous people who formerly inhabited the mountain range where the bird was found. A large and colorful finch with black, yellow and red plumage, the n...

Study: Living coral reefs provide better protection from tsunami waves

...e and exerts less drag on the wave." A turbulent mountain of water crashing over a complicated rough surface presented Kunkel with a number of obstacles for her own study -- specifically, how to find a way to express each of these effects with a mathematical formula that a computer could employ to simulate ...

China's environmental challenges

...rs identified ten hotspot regions in China's major mountain ranges they say should be priorities for the country's conservation plans. One of the review articles in the issue examines the phenomenon of so-called city clusters in China, which, in contrast to the United States, tend to be much more concentr...

Researchers reveal mystery of bacterial magnetism

...ll directions. An analogy would be a blind-folded mountain climber searching for a specific altitude. If she only climbs straight up or down the mountain, she should find it more quickly. "But by observing how the bacteria moved away from oxygen that we added to their environment," reports Dr. McRae Smith,...

Dust to gust

...es: it is flanked on both sides by enormous basalt mountain ridges, which create a cone-shaped crater with a narrow opening in the northeast. Winds that "drain" into the valley focus on this funnel-like opening similarly to the way light is focused by an optical lens, creating a large wind tunnel of sorts. As...

Report highlights change in Canada's forests

...ts and increase access in existing markets, combat mountain pine beetle, and help communities and workers affected by the issues facing the forest industry." The annual report is rounded out by statistics on forest cover, employment, exports, production and trade. It is available in English and French online...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...ierra Nevada de Santa Marta is the highest coastal mountain range in the world, rising from the shores of the Caribbean Sea to almost 19,000 feet. It contains extraordinary numbers of species found nowhere else across a multitude of isolated ecosystems. Protecting the new El Dorado Nature Reserve prevents des...

Colombian frog believed extinct found alive

Researchers exploring a Colombian mountain range found surviving members of a species of Harlequin frog believed extinct due to a killer fungus wiping out amphibian populations in Central and South America. The discovery of what could be the last population of the painted frog (Atelopus eben...

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