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Tag: "disappearing" at biology news

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...omed to nesting on islands free of predators began disappearing when fur traders started introducing foxes onto islands in the Aleutian archipelago in the 18th century. The ground-nesting birds made easy meals for the foxes. A study published this week in the journal Science now shows that the effects of the intr...

Primates on the brink

...angutan, still number in the low thousands but are disappearing at a faster rate than other primates. The December tsunamis that devastated coastal Sumatra have triggered a possible new threat to orangutan habitat from resettlement of area residents. Changes to the list from 2002 reflect a desire to draw attenti...

Siberian tigers hang tough

...pressure after recent reports of tigers completely disappearing from some of their core tiger reserves. Yuri Darman, Director of the WWF Russian Far East Office, declared, "these results are a tribute to the hard work and dedication of conservation organizations and government officials here in Russia. Despite ma...

UF study first to quantify validity of DNA I.D. tool using marine snails

...bers on it." Because species around the world are disappearing faster than biologists can identify them, the need for a quick and accurate method of classifying life has never been more pressing, Meyer said. With millions of animal species on Earth, DNA barcoding can be a helpful identification tool for ecologis...

The Antarctic Ocean floor

...given that the experts claim that many species are disappearing ?even before we know about them. ...

Climate change drives widespread amphibian extinctions

...ounds and colleagues show that harlequin frogs are disappearing in near lockstep with changing climate. According to the scientists, the Earth's rising temperatures enhance cloud cover on tropical mountains, leading to cooler days and warmer nights, both of which favor the chytrid fungus. The organism grows and r...

Alaska seal pup diet may hold key to decline of population

... out why harbor seals and other marine mammals are disappearing from the chilly waters off the Alaskan coast. The population decline, which has become a focus of research in the past 10-15 years, is potentially due to a variety of factors, Polasek said, including: changes in availability of prey warming ocean ...

Wild bees and the flowers they pollinate are disappearing together

...with the plants that depend on pollination by bees disappearing too. Dr Bill Kunin, coordinator of the project at the University of Leeds explained: "We looked at plant changes as an afterthought, and were surprised to see how strong the trends were. When we contacted our Dutch colleagues, we found out that t...

Major initiative proposed to address amphibian crisis

...for hundreds of millions of years and just now are disappearing in many areas." Some of the causes have been identified. Rising levels of ultraviolet radiation, increases in pollutants, pesticides, extensive habitat loss due to agriculture or urbanization, invasive species, and various fungal diseases have all...

Special chip provides better picture of salmon health

...are the most important farmed fish in the UK and a disappearing species in the wild. They are particularly vulnerable to infection because of the dramatic physical and chemical changes they go through, known as smoltification, which enable them to live in both fresh and salt water. Assessing their health and perf...

By 2048 all current fish, seafood species projected to collapse

...the nonprofit science society. "Species have been disappearing from ocean ecosystems and this trend has recently been accelerating," said lead author Boris Worm. "Now we begin to see some of the consequences. For example, if the long-term trend continues, all fish and seafood species are projected to collapse wi...

Over a century after disappearing, wild elk return to Ontario

After disappearing from Ontario due to over hunting in the 19th century, wild elk have returned to the province thanks to the efforts of the Ontario elk restoration program. According to a report on the program’s success, published in the March issue of Restoration Eco...

Rare soft-shell turtle, nesting ground found in Cambodia

...overy means that a unique turtle can be saved from disappearing from our planet,?said David Emmett, a CI wildlife biologist. “We thought it might be almost gone, but found it in abundance in this one pristine stretch of the Mekong, making the area the world’s most important site for saving this particular species...

Arctic ice retreating more quickly than computer models project

...incipal sponsor, and by NASA. "While the ice is disappearing faster than the computer models indicate, both observations and the models point in the same direction: the Arctic is losing ice at an increasingly rapid pace and the impact of greenhouse gases is growing," says NCAR scientist Marika Holland, one of ...

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