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News articles on Extinction

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Mongabay.com news articles on extinction in blog format. Updated regularly.

Lack of oxygen triggers sex imbalance in fish
(3/29/2006) Oceanic oxygen depletion resulting from agricultural run-off and pollution can trigger sex imbalance in fish and pose an extinction risk according to a new study published by researchers in Hong Kong. The finding raises new concerns about "dead zones",expanses of water so devoid of oxygen that most sea life cannot survive.


Past mass extinction events linked to climate change
(3/29/2006) Most mass extinctions were caused by gradual climate change rather than catastrophic asteroid impacts says Peter Ward, a paleontologist at the University of Washington in Seattle, in an upcoming article in New Scientist magazine.


Global biological diversity in decline
(3/20/2006) Global biological diversity is increasingly threatened according to a report released by at the outset of the largest biodiversity conference in more than a decade. More than 3000 delegates and 100 government ministers have gathered in Curitiba, Brazil at the eighth Convention on Biological Diversity to discuss the outlook for Earth's species.


Crazy jungle rodent is 11 million years old
(3/9/2006) The newly discovered species of rodent found in a marketplace in Central Laos turns out to not be so new after all. The Laotian rock rat, as the long-whiskered and stubby-legged rodent is now known, is a species believed to have been extinct for 11 million years. It is a member of a family that, until now, was only known from the fossil record.


New extinction hotspots identified
(3/7/2006) Scientists have identified 20 potential extinction hotspots where hunting and human-caused habitat destruction are set to suffer significant declines in animal populations in coming years. In developing their map of future extinction hotspots, the researchers analyzed current and predicted IUCN Red List data on the extinction risk to almost 4,000 species of land mammals. Their roster includes areas not typically found on lists of the world's most imperiled habitats, including Greenland, the Patagonian coast of South America, and Siberian tundra.


Study finds deforestation has pushed orangutans to brink of extinction
(1/24/2006) A three year genetic study by wildlife geneticists from Cardiff School of Biosciences has shown a population collapse in the Bornean orang-utan.


Plants face extinction threat due to lack of sex
(1/16/2006) The decline of birds, bees and other pollinators may be putting plants at risk of extinction according to a new study.


Extinctions linked to climate change
(1/11/2006) A new report that links global warming to the recent extinction of dozens of amphibian species in tropical America is more evidence of a large phenomena that may affect broad regions, many animal species and ultimately humans, according to researchers at Oregon State University.


Pollination networks may play key role in extinction
(1/4/2006) As animal extinctions continue at the rate of one every 16 years, it's unclear how declining biodiversity will disturb ecosystem dynamics. Of special concern are the pollinators, essential players in the reproductive biology of plants, the earth's primary producers.


Is Global Warming Killing Polar Bears? -- WSJ
(12/14/2005) Today The Wall Street Journal ran an article asking "Is Global Warming Killing the Polar Bears?" The article cited several recent studies that suggest polar bears are increasingly under threat from receding ice and warming temperatures.


794 species on brink of extinction find study
(12/12/2005) Protecting 595 sites around the world would help address an imminent global extinction crisis, according to a study published today in the Proceedings of the National Academy of Sciences. Conducted by scientists working with the 52 member organizations of the Alliance for Zero Extinction (AZE), the study identifies 794 species threatened with imminent extinction by virtual of existing at only a single remaining site on Earth. The study found that just one-third of the sites are known to have legal protection, and most are surrounded by human population densities that are approximately three times the global average. Safeguarding these sites is key to saving these species from extinction say the authors of the study.


Poisonous volcanic gas probably caused worst mass extinction says new study
(12/2/2005) The mass extinction event at the end of the Permian -- where more than two-thirds of reptile and amphibian families perished and 95% of oceans life forms became extinct -- was probably caused by poisonous volcanic gas, according to research published in the journal Geology. The researchers believe that volcanic gases from the eruption depleted earth's protective ozone layer and acidified the land and sea.


Giant, human-sized scorpion discovered
(12/1/2005) Tracks made 330 million years ago by a 1.6 meter-long (5 ft 3 inches) water scorpion have been discovered in Scotland.


Humans hunted giant lemurs to extinction
(11/14/2005) Madagascar's first inhabitants probably hunted the island's largest animals to extinction according to research published in the November issue of the Journal of Human Evolution.


Demise of passenger pigeon linked to Lyme disease
(11/14/2005) Traditionally, the passenger pigeon has been held as one of the more beloved animal species to fall prey to humankind's often relentless expansion into and disregard for the natural world and its creatures. Once abundant, the bird experienced a rapid decline in the late 1800s, due almost entirely to rampant hunting, and the last passenger pigeon died in 1914. In light of new findings however, this image of a naturally plentiful species laid to waste by man is now being tested. Evidence collected over the past few years from a significant number of Native American archeological sites is beginning to upset long-accepted beliefs about one of the most famous extinct species in modern history.


Conservation groups sue Bush administration over endangered species delays
(11/9/2005) A coalition of conservation groups filed a complaint late yesterday against the Bush Administration for delaying protection of hundreds of wildlife species as endangered under the Endangered Species Act, leaving 283 plants and animals on a perpetual candidate waiting list. Since passage of the Act, at least 24 candidate species have gone extinct waiting for protection.


Supernova could be responsible for extinction of the mammoth
(9/24/2005) A distant supernova that exploded 41,000 years ago may have led to the extinction of the mammoth, according to research that will be presented tomorrow (Sept. 24) by nuclear scientist Richard Firestone of the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).


Palm oil plantations decimating orang-utans says report
(9/23/2005) UK company demand for palm oil, a vegetable oil found in one in ten products on supermarket shelves, is driving the orang-utan towards extinction, new research reveals. The `Oil for Ape Scandal', published today by Friends of the Earth and the world's leading orang-utan conservation groups, concludes that without urgent intervention the palm oil trade could cause the extinction of Asia's only great ape within 12 years.


How to save disappearing amphibians subject of meeting this weekend
(9/14/2005) Scientists are meeting this weekend to discuss strategies for addressing the global decline of amphibians. Earlier this year, the Global Amphibian Assessment, a survey of the planet's amphibian species, found that nearly a third (32%) of the world's amphibian species are threatened and 129 species have gone extinct since 1980.


Virunga hippo population falling rapidly from poaching
(9/12/2005) A new aerial survey shows that the hippo population in Virunga National Park in the Democratic Republic of Congo will soon be extinct due to rampant poaching for hippo teeth and meat, WWF warned today.


Global warming may have triggered worst mass extinction
(8/29/2005) A dramatic rise in carbon dioxide 250 million years ago may have caused global temperatures to soar and result in Earth's greatest mass extinction, according to a study published in the September issue of Geology. Global warming, which may have produced temperatures 10 to 30 degrees Celsius higher than today, would have had a significant impact both on oceans, where about 95% of lifeforms became extinct, and on land, where almost 75% of species died out.


Madagascar lemurs descended from single primate ancestor, finds study
(7/11/2005) Yale biologists have managed to extract and analyze DNA from giant, extinct lemurs, according to a Yale study published in a recent issue of the Proceedings of the National Academy of Sciences. Evolutionary analysis of the DNA obtained from the extinct giants reveals that they, like the living lemurs, are descended from a single primate ancestor that colonized Madagascar more than 60 million years ago.


16% of frogs species in Sri Lanka may be gone, new survey finds
(7/2/2005) In a study published Thursday in Raffles Bulletin of Zoology, researchers confirmed the discovery of 35 new frog species in Sri Lanka over the past decade brining the number of frog species in the island country to 105. However, the survey found that 17 of these species have disappeared and at least another 11 face imminent extinction unless their habitat is protected.


Toad on brink of extinction, scientists race to study for bioactive compounds
(6/29/2005) Following the construction of a dam in Tanzania, the Kihansi Spray Toad sits on the brink of extinction. Scientists are racing to study the amphibian for bioactive compounds with potential medical applications.


25 percent of the world's 625 primate species at risk of extinction
(4/7/2005) 25 percent of the world's 625 primate species at risk of extinction



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