Topic: Biodiversity


Courting Controversy with<br /> a New View on Exotic Species

Report

Courting Controversy with
a New View on Exotic Species

by greg breining
A number of biologists are challenging the long-held orthodoxy that invasive species are inherently bad. In their contrarian view, many introduced species have proven valuable and useful and have increased the diversity and resiliency of native ecosystems.
READ MORE

In Japan’s Managed Landscape,<br /> a Struggle to Save the Bears

Report

In Japan’s Managed Landscape,
a Struggle to Save the Bears

by winifred bird
Although it is a heavily urbanized nation, fully two-thirds of Japan remains woodlands. Yet many of the forests are timber plantations inhospitable to wildlife, especially black bears, which are struggling to survive in one of the most densely populated countries on Earth.
READ MORE

The Spread of New Diseases<br /> and the Climate Connection

Report

The Spread of New Diseases
and the Climate Connection

by sonia shah
As humans increasingly encroach on forested lands and as temperatures rise, the transmission of disease from animals and insects to people is growing. Now a new field, known as “conservation medicine,” is exploring how ecosystem disturbance and changing interactions between wildlife and humans can lead to the spread of new pathogens.
READ MORE

The Growing Specter of<br /> Africa Without Wildlife

Report

The Growing Specter of
Africa Without Wildlife

by richard conniff
Recent studies show that wildlife in some African nations is declining even in national parks, as poaching increases and human settlements hem in habitat. With the continent expected to add more than a billion people by 2050, do these trends portend an Africa devoid of wild animals?
READ MORE

Controlling the Ranching Boom<br /> that  Threatens the Amazon

Report

Controlling the Ranching Boom
that Threatens the Amazon

by rhett butler
Clearing land for cattle is responsible for 80 percent of rainforest loss in the Brazilian Amazon. But with Amazon ranching now a multi-billion dollar business, corporate buyers of beef and leather, including Wal-Mart, are starting to demand that the destruction of the forest be halted.
READ MORE

First Comes Global Warming,<br /> Then an Evolutionary Explosion

Report

First Comes Global Warming,
Then an Evolutionary Explosion

by carl zimmer
In a matter of years or decades, researchers believe, animals and plants already are adapting to life in a warmer world. Some species will be unable to change quickly enough and will go extinct, but others will evolve, as natural selection enables them to carry on in an altered environment.
READ MORE

A Total Ban on Whaling?<br /> New Studies May Hold the Key

Opinion

A Total Ban on Whaling?
New Studies May Hold the Key

by fred pearce
As the International Whaling Commission debates whether to ban all whaling or to expand the limited hunts now underway, recent research has convinced some scientists that the world’s largest mammal should never be hunted again.
READ MORE

Climate Threat to Polar Bears:<br /> Despite Facts, Doubters Remain

Analysis

Climate Threat to Polar Bears:
Despite Facts, Doubters Remain

by ed struzik
Wildlife biologists and climate scientists overwhelmingly agree that the disappearance of Arctic sea ice will lead to a sharp drop in polar bear populations. But some skeptics remain unconvinced, and they have managed to persuade the Canadian government not to take key steps to protect the animals.
READ MORE

With the Clearing of Forests,<br /> Baby Orangutans Are Marooned

Report

With the Clearing of Forests,
Baby Orangutans Are Marooned

by rhett butler
As Borneo's rain forests are razed for oil palm plantations, wildlife centers are taking in more and more orphaned orangutans and preparing them for reintroduction into the wild. But the endangered primates now face a new threat — there is not enough habitat where they can be returned.
READ MORE

Analysis

Regional Climate Pact’s Lesson:
Avoid Big Giveaways to Industry

by keith schneider
As Congress struggles over a bill to limit carbon emissions, a cap-and-trade program is already operating in 10 Northeastern states. But the regional project's mixed success offers a cautionary warning to U.S. lawmakers on how to proceed.
READ MORE

Previous Eras of Warming<br /> Hold Warnings for Our Age

Interview

Previous Eras of Warming
Hold Warnings for Our Age

by carl zimmer
By 2100, the world will probably be hotter than it’s been in 3 million years. In an interview with Yale Environment 360, paleoecologist Anthony D. Barnosky describes the unprecedented challenges that many species will face in this era of intensified warming.audio
READ MORE

The Flawed Logic of<br /> the Cap-and-Trade Debate

Opinion

The Flawed Logic of
the Cap-and-Trade Debate

by ted nordhaus and michael shellenberger
Two prominent — and iconoclastic — environmentalists argue that current efforts to tax or cap carbon emissions are doomed to failure and that the answer lies not in making dirty energy expensive but in making clean energy cheap.
READ MORE

As Climate Warms, Species <br />May Need to Migrate or Perish

Report

As Climate Warms, Species
May Need to Migrate or Perish

by carl zimmer
With global warming pushing some animals and plants to the brink of extinction, conservation biologists are now saying that the only way to save some species may be to move them.
READ MORE

Satellites and Google Earth<br /> Prove Potent Conservation Tool

Report

Satellites and Google Earth
Prove Potent Conservation Tool

by rhett butler
Armed with vivid images from space and remote sensing data, scientists, environmentalists, and armchair conservationists are now tracking threats to the planet and making the information available to anyone with an Internet connection.
READ MORE

Twenty Years Later, Impacts<br />  of the Exxon Valdez Linger

Report

Twenty Years Later, Impacts
of the Exxon Valdez Linger

by doug struck
Two decades after the Exxon Valdez spilled 11 million gallons of crude oil into Alaska’s waters, the Prince William Sound, its fishermen, and its wildlife have still not fully recovered.
READ MORE

Analysis

With Temperatures Rising,
Here Comes ‘Global Weirding’

by john waldman
They’re calling it “global weirding” – the way in which rising temperatures are causing species to change their ranges, the timing of their migrations, and the way they interact with other living things. And the implications of all this are only beginning to be understood.
READ MORE

Finding New Species:<br /> The Golden Age of Discovery

Report

Finding New Species:
The Golden Age of Discovery

by bruce stutz
Aided by new access to remote regions, researchers have been discovering new species at a record pace — 16,969 in 2006 alone. The challenge now is to preserve threatened ecosystems before these species, and others yet unknown, are lost.
READ MORE

Laos Emerges as Key Source <br />in Asia's Illicit Wildlife Trade

Report

Laos Emerges as Key Source
in Asia's Illicit Wildlife Trade

by rhett butler
Long an isolated land with abundant forests and biodiversity, Laos is rapidly developing as China and other Asian nations exploit its resources. One of the first casualties has been the wildlife, now being rapidly depleted by a thriving black-market trade.
READ MORE

What Obama Must Do<br /> on the Road to Copenhagen

Opinion

What Obama Must Do
on the Road to Copenhagen

by michael northrop and david sassoon
If crucial climate negotiations later this year in Copenhagen are to have any chance of success, the U.S. must take the lead. To do that, President Obama needs to act boldly in the coming months.
READ MORE

Opinion

A Call for Tougher Standards
on Mercury Levels in Fish

by jane hightower
In response to industry pressure, the U.S. Food and Drug Administration has failed to set adequate restrictions on mercury levels in fish. Now the Obama administration must move forcefully to tighten those standards and warn the public which fish are less safe to eat.
READ MORE

The Cost of the Biofuel Boom: Destroying Indonesia’s Forests

Report

The Cost of the Biofuel Boom: Destroying Indonesia’s Forests

by tom knudson
The clearing of Indonesia’s rain forest for palm oil plantations is having profound effects – threatening endangered species, upending the lives of indigenous people, and releasing massive amounts of carbon dioxide into the atmosphere.
READ MORE

Obama’s Plan: Clean Energy<br /> Will Help Drive a Recovery

Analysis

Obama’s Plan: Clean Energy
Will Help Drive a Recovery

by keith schneider
In a bold departure from past U.S. policies, President Barack Obama sees clean energy and “green jobs” as critical components of an economic stimulus strategy.
READ MORE

Report

U.S. Automakers Worry that Greener Cars May Not Sell

by jim motavalli
Even as they debut the next generation of hybrids and battery-powered cars, auto company executives are not confident that the American public will buy them.
READ MORE

Report

On Chinese Water Project,
a Struggle Over Sound Science

by christina larson
Geologist Yong Yang has serious concerns about plans for a massive Yangtze River diversion project. When he went public with them, he found out how difficult it can be to challenge a government decision in China. The third in a series on Chinese environmentalists.
READ MORE

Opinion

A Green Scorecard for
Stimulating the Economy

by richard conniff
In evaluating an economic recovery package, the new U.S. administration and Congress must weigh any proposed spending – on highways or mass transit or wind-power transmission routes – on the basis of clear criteria that would assess just how green the projects will be.
READ MORE

As Rain Forests Disappear,<br /> A Market Solution Emerges

Report

As Rain Forests Disappear,
A Market Solution Emerges

by rhett butler
Despite the creation of protected areas in the Amazon and other tropical regions, rain forests worldwide are still being destroyed for a simple reason: They are worth more cut down than standing. But with deforestation now a leading driver of global warming, a movement is growing to pay nations and local people to keep their rain forests intact.
READ MORE

Regulators Are Pushing<br /> Bluefin Tuna to the Brink

Opinion

Regulators Are Pushing
Bluefin Tuna to the Brink

by carl safina
The international commission charged with protecting the giant bluefin tuna is once again failing to do its job. Its recent decision to ignore scientists’ recommendations for reducing catch limits may spell doom for this magnificent – and endangered – fish.
READ MORE

What’s Killing<br/> the Tasmanian Devil?

Report

What’s Killing
the Tasmanian Devil?

by david quammen
Scientists have been trying to identify the cause of a cancer epidemic that is wiping out Australia’s Tasmanian devils. Now new research points to an alarming conclusion: because of the species’ low genetic diversity, the cancer is contagious and is spreading from one devil to another.
READ MORE

Thomas Friedman: Hope in a Hot, Flat and Crowded World

Interview

Thomas Friedman: Hope in a Hot, Flat and Crowded World

by elizabeth kolbert
In an exclusive interview with Yale Environment 360, best-selling author Thomas Friedman talks with Elizabeth Kolbert about his new book and about why he’s optimistic that an energy-technology revolution can revitalize the United States and set the world on a new, greener path. audio
READ MORE

Report

Financial Crisis Dims Chances
for U.S. Climate Legislation

by margaret kriz
Environmentalists had been looking to a new president and a new Congress to pass legislation dealing with global warming next year. But with tough economic times looming, the passage of a sweeping climate change bill now appears far less likely.
READ MORE

A Corporate Approach to <br />Rescuing the World’s Fisheries

Report

A Corporate Approach to
Rescuing the World’s Fisheries

by nicholas day
The commitment by Wal-Mart, McDonald’s, and other major companies to buy only sustainably-caught seafood is an encouraging sign in an otherwise bleak global fisheries picture. After decades of government inaction and ineffective consumer campaigns, corporate pressure may finally be starting to turn the tide on reckless overfishing.
READ MORE

Saving the Seeds of the<br /> Next Green Revolution

Analysis

Saving the Seeds of the
Next Green Revolution

by fred pearce
With food prices skyrocketing and climate change looming, the world needs a green revolution like the one a generation ago. But many valuable seed varieties have been lost – and scientists now are scrambling to protect those that remain before they vanish down the genetic drain.
READ MORE

Alaska’s Pebble Mine:<br /> Fish Versus Gold

Report

Alaska’s Pebble Mine:
Fish Versus Gold

by bill sherwonit
With the support of Gov. Sarah Palin, mining interests have defeated an Alaska ballot measure that could have blocked a huge proposed mining project. Now, plans are moving forward to exploit the massive gold and copper deposit at Bristol Bay, home of one of the world’s greatest salmon runs.
READ MORE

As Energy Prices Rise, <br />the Pressure to Drill Builds

Opinion

As Energy Prices Rise,
the Pressure to Drill Builds

by eugene linden
President Bush is urging Congress to open the U.S. coasts and the Arctic National Wildlife Refuge to oil and gas drilling. But America must ultimately wean itself off fossil fuels. The question is whether it makes the transition now — or waits until every last one of its unspoiled places has been drilled.
READ MORE

Global Commodities Boom <br />Fuels New Assault on Amazon

Report

Global Commodities Boom
Fuels New Assault on Amazon

by rhett butler
With soaring prices for agricultural goods and new demand for biofuels, the clearing of the world's largest rain forest has accelerated dramatically. Unless forceful measures are taken, half of the Brazilian Amazon could be cut, burned or dried out within 20 years.
READ MORE

The Limits of Climate Modeling

Report

The Limits of Climate Modeling

by fred pearce
As the public seeks answers about the future impacts of climate change, some climatologists are growing increasingly uneasy about the localized predictions they are being asked to make.
READ MORE

Biodiversity in the Balance

Analysis

Biodiversity in the Balance

by carl zimmer
Paleontologists and geologists are looking to the ancient past for clues about whether global warming will result in mass extinctions. What they're finding is not encouraging.
READ MORE

Analysis

Carbon’s Burden on the World’s Oceans

by carl safina and marah j. hardt
The burgeoning amount of carbon dioxide in oceans is affecting a lot more than coral reefs. It is also damaging marine life and, most ominously, threatening the future survival of marine populations.
READ MORE

Russia’s Lake Baikal: Preserving a Natural Treasure

Report

Russia’s Lake Baikal: Preserving a Natural Treasure

by peter thomson
The world's greatest lake, holding 20 percent of the planet's surface fresh water, has long remained one of the most pristine places on earth. Now, as Russia's economy booms and its climate warms, the Siberian lake faces new threats.
READ MORE

A Conversation with Nobel Prize Winner Rajendra Pachauri

Interview

A Conversation with Nobel Prize Winner Rajendra Pachauri

In an interview with Yale Environment 360, the chairman of the Intergovernmental Panel on Climate Change says the next U.S. administration must play a leading role in global climate change policy and cautions that China and the developing world must not follow the same path of industrialization as the United States and western Europe. audio
READ MORE

DNA Technology: <br />Discovering New Species

Report

DNA Technology:
Discovering New Species

by jon r. luoma
By taking bits of a single gene, scientists are using DNA barcoding to identify new species. If a portable hand-held scanning device can be developed, one ecologist says, it could “do for biodiversity what the printing press did for literacy.”
READ MORE

e360 digest

RELATED e360 DIGEST ITEMS


20 Nov 2009: Emergency Rainforest Fund
Created by Prince Charles and 35 Nations

Britain’s Prince Charles has struck an agreement with 35 nations to contribute $22 billion to $36 billion to reduce the destruction of tropical forests by 25 percent by 2015. The Prince of Wales said the U.S. has agreed to contribute $275 million to the rainforest protection fund, which will pay countries such as Indonesia and Brazil to preserve forests rather than felling them for timber or agricultural use. Ed Miliband, the U.K.’s energy and climate change secretary, said a global mechanism for paying countries to protect tropical forests is on the agenda at next month’s Copenhagen climate summit and is “closer than it’s ever been” to being codified in an international treaty. Deforestation is responsible for nearly 20 percent of global carbon emissions, and various nations and conservation groups are working to develop programs known as REDD
Prince Charles
— Reducing Emissions from Deforestation and Degradation. Conservationists said that the Prince of Wales’ effort must ensure the funds are not squandered through local corruption or questionable forest protection schemes. The conservationists cited the example of Norway’s pledging $250 million to slow deforestation in Guyana. Since the Guyanese government claimed an artificially high rate of previous deforestation, it can receive payments while actually doing little or nothing to slow current forest loss.
PERMALINK

 

19 Nov 2009: Kenya Evicts Squatters
From Beleaguered Mau Forest

The Kenyan government has begun evicting an estimated 30,000 families that have squatted illegally in the vital Mau forest and caused major environmental damage to the one-million-acre woodland. The Mau forest, located in the Rift valley, is Kenya’s largest water catchment area, the source of at least a dozen rivers that feed Lake Victoria, the Masai Mara nature reserve, and the tea fields of Kericho. Over the last 20 years, however, squatters and officials in the government of ex-President Daniel Arap Moi moved into the Mau and have destroyed roughly a quarter of the forest by clearing the land for timber production and agriculture. The forest destruction has created large-scale soil erosion and caused aquifer levels to fall, exacerbating a recent drought that caused many rivers to run dry. Prime Minister Raila Odinga has made clearing the Mau of squatters and restoring the forest the nation’s top environmental priority. Already, officials report, 3,500 squatters have moved out of the forest after being served with eviction notices.
PERMALINK

 

12 Nov 2009: Brown Pelican Removed
From U.S. Endangered Species List

The brown pelican, a bird once prized by hunters for its feathers and later imperiled by rampant pesticide use, has “fully recovered” and no longer requires federal protection, the U.S. Interior Department announced. Populations of the bird — a fixture in Florida, the Gulf Coast states and along
Stock.xchng
A brown pelican
the Pacific coast — have reached more than 650,000 in North and Central America. That marks a stark contrast to decades ago, when a combination of hunting and the use of the pesticide DDT — which weakened pelican eggs, causing them to hatch prematurely — had decimated the species. Pelican populations at one time had dipped as low as 10,000. The bird was declared endangered in 1970. A ban on the general use of DDT in 1972 was a key step in the recovery, federal officials said. “It has taken 36 years, the banning of DDT and a lot of work,” said Interior Secretary Ken Salazar, “but today we can say that the brown pelican is back.” Removal from the endangered species list means that officials will no longer be required to consider effects on the bird when reviewing construction projects.
PERMALINK

 

27 Oct 2009: Ocean Acidification’s Effects
Documented in New Study of Shellfish

Relatively small increases in ocean acidity significantly harm clams, bay scallops, and oysters, particularly in their crucial larval stage, according to a new study. Researchers at the State University of New York, Stony Brook, exposed shellfish to levels of acidity expected in Earth’s oceans later this century and next century, and found that modest increases in acidity led to a 50 percent decline in survival of clam and scallop larvae, reduced the size of the larvae, and caused the larvae to develop more
slowly. Oyster larvae also grew more slowly, but their survival was not affected until ocean acidity reached levels expected next century. The world’s oceans absorb about half of the 30 billion tons of carbon dioxide released annually by burning fossil fuels, and the increased carbon dioxide is rapidly making the oceans more acidic, inhibiting the ability of mollusks such as clams and scallops to make their calcium carbonate shells. The researchers said the detrimental impact of ocean acidity on shellfish larvae growth rates is particularly worrisome, as the larvae are free-swimming and exposed to predation. The group’s work is being published in the journal Limnology and Oceanography.
PERMALINK

 

26 Oct 2009: Key Wolves in Yellowstone
Killed Near Park by Hunters in Montana

Hunters have killed some of Yellowstone National Park’s best-known alpha wolves, animals vital to studies conducted in the park since wolves were reintroduced there in 1995. Among those killed was an alpha female, known as wolf 527, who was born into Yellowstone’s Druid Peak pack, featured in a PBS
In The Valley of the Wolves
PBS
documentary entitled “In the Valley of the Wolves.” Before she, her mate — the pack’s alpha male — and her daughter were shot this month, wolf 527 was wearing a radio collar that enabled researchers to track and study her and her pack. Doug Smith, the biologist in charge of Yellowstone’s wolf reintroduction program, said the new pack wolf 527 helped form — the Cottonwood Pack — was a “key pack on the northern range” of the park, adding, “Whether the pack exists anymore or not, to us the pack is gone.” Wolf 527 was killed in a special hunt designed to cull Yellowstone wolves killing livestock and elk on the park’s northern boundary. Montana officials, surprised by the large number of Yellowstone wolves killed, called off the special hunt, even as an expanded wolf hunt begins in Montana this week. More than 1,600 wolves exist now in Montana, Idaho, and Wyoming, and state officials are allowing 75 to be killed this season in Montana and 220 in Idaho.
PERMALINK

 

23 Oct 2009: Protected Polar Bear Habitat
Proposed by U.S. Government in Alaska

The U.S. Interior Department is proposing that more than 200,000 square miles of land, sea, and ice in Alaska and nearby waters be given special protection to help preserve 3,500 polar bears threatened by the rapid loss of Arctic sea ice. The Interior Department has proposed designating the vast area as “critical habitat,” which means that any government agency or company must show that activities such as oil drilling and shipping will not affect the bears’ habitat or accelerate the extinction of the species. In 2008, the Interior Department declared that polar bears were threatened with extinction. Shell Oil this week was given permission to drill in the proposed protected area, and conservation groups have
Polar Bear
criticized the Interior Department for not banning all oil and gas activity in the protected zone. Meanwhile, the National Oceanic and Atmospheric Administration has released its annual “Arctic Report Card” saying there is mounting evidence of widespread warming in the Arctic, including a drastic reduction in thick, multi-year sea ice; record-setting heat in Greenland and other parts of the Arctic; an unprecedented amount of freshwater on the surface of the Atlantic from melting ice; and growing evidence that Arctic warming is altering weather patterns in the northern hemisphere.
PERMALINK

 

22 Oct 2009: Bark Beetle Infestation
Spreads in Monarch Butterfly Reserve

The world’s largest reserve for migrating Monarch butterflies, located in the Mexican highlands, is suffering from an infestation of bark beetles similar to outbreaks that have killed millions of acres of evergreens in the U.S. and Canada. In an effort to stem the spread of the infestation, Mexican officials
Butterfly
stock.xchang
Monarch butterfly
have cut down 9,000 fir trees and buried them or shipped them out of the reserve. So far, the infestation has affected only a small portion of the 33,000-acre core mountaintop wintering grounds, but the outbreaks are occurring in widespread patches, which could indicate a spread of the disease. Mexican officials say the beetles have always existed in the reserve, but that a recent drought has weakened the fir trees and made them more susceptible to the tiny pests, which destroy the bark and kill the firs. Similar bark beetle outbreaks in the U.S. and Canada have primarily been attributed to warmer temperatures, which do not kill off the beetles in winter. The fir trees in the monarch reserve, located 60 miles northwest of Mexico City, provide shelter to the butterflies in cool weather on their southerly migration.
PERMALINK

 

21 Oct 2009: Genetically Modified Crops
Needed to Avert Food Crisis, Panel Says

Further development of genetically modified (GM) crops will be needed to feed the estimated 9 billion people who will live on the planet by mid-century, according to a report from the U.K.’s Royal Society. The report said that rising populations, the impacts of climate change, and projected water shortages mean that new, drought-resistant and highly productive food plants must be developed to feed the world. The report said other economic and technological changes — such as improved irrigation and crop management — also will be necessary. The Royal Society scientists concluded that the development of new crops is an urgent priority if global agriculture and land-use problems are to be solved. The scientists’ conclusions drew fire from opponents of GM crops, who contend that the technique is unsustainable and could cause major environmental harm.
PERMALINK

 

21 Oct 2009: Space Agencies and Google
To Monitor Deforestation From Satellites

Space agencies from Europe, the U.S., and several other nations are joining forces with Google Earth and a conservation organization to annually monitor deforestation rates around the globe using satellite imagery. The Group on Earth Observations (GEO), a global partnership of 80 governments and more than 50 organizations, is launching pilot projects in Australia, Brazil, Cameroon, Guyana, Indonesia, Mexico, and Tanzania to inventory forests and track rates of deforestation. Such annual monitoring — which until recently has been carried out every five years — will be instrumental in helping support programs in which governments, conservation groups, and investors pay to preserve tropical forests, GEO officials said. An international mechanism for preserving forests using carbon credits is expected to be approved at the Copenhagen climate conference in December. “The only way to measure forests efficiently is from space,” said Jose Achache, director of GEO. “Investors will want some sort of guarantee that... forests will remain there and remain in good condition.” Google Earth, which already is involved in using satellite technology to monitor deforestation, will participate in the GEO effort, Achache said.
PERMALINK

 

16 Oct 2009: Kew Gardens Seed Bank
Has Collected 10 Percent of Plant Species

A repository created by the Royal Botanic Gardens, Kew, has collected nearly 10 percent of the seeds from the world’s estimated 300,000 seed-bearing plants, completing the first phase of an ambitious plan to preserve the seeds of all the species threatened by human development and climate change. The
Kew Gardens
The Guardian
Musa itinerans
final seeds added in the project’s opening phase came from an endangered pink banana — Musa itinerans — favored by Asian elephants. To date, the Kew seed bank has collected 1.6 billion seeds from a total of 24,200 plant species. The next phase of the project aims to preserve seeds from 75,000 species by 2020. The seed bank has already been used to revive threatened species, including replanting a shrub, the shiny nematolepis, whose only known remaining plants were destroyed in massive Australian wildfires earlier this year. Scientists estimate that as many as 200,000 of the world’s seed-bearing species could eventually be at risk from rising temperatures and human encroachment on the natural world. The seed bank, which opened in 2000, stores the seeds in super-cooled, underground vaults in Sussex.
PERMALINK

 

14 Oct 2009: Salt Marshes and Mangroves
Cited as Vital in Combating Climate Change

Salt marshes, sea grasses, mangroves, and other forms of marine vegetation withdraw and store an enormous amount of carbon dioxide from the atmosphere and should be preserved and restored by creating a new global fund, according to a U.N. report. The study, calling for the creation of a “Blue Carbon” initiative, said that although such marine vegetation covers less than 1 percent of the world’s seabed, these plants are estimated to store 1.6 billion tons of CO2 every year — more than half of all carbon buried in the ocean floor. The U.N. report said that these vital marine habitats are being destroyed at a rapid rate, with parts of Asia losing up to 90 percent of their mangrove forests since 1940 and an estimated 2 to 7 percent of salt marshes, sea grasses, and mangroves lost annually to human development. But the report said that such ecosystems can be restored, and that the restoration of large areas of marine vegetation, coupled with efforts to preserve tropical forests, could reduce global carbon emissions by 25 percent.
PERMALINK

 

14 Oct 2009: Non-Native Snakes in U.S.
Threaten Ecosystems and Other Species

Five giant invasive snake species threaten the health of native ecosystems in Florida and parts of the southern U.S. because the reptiles could decimate indigenous species of animals and birds, according to
Burmese Python
USGS
Burmese python
a report by the U.S. Geological Survey (USGS). Robert Reed, a USGS invasive species scientist who co-authored the report, said that Burmese pythons, northern and southern African pythons, boa constrictors, and anacondas — some of which grow more than 20 feet long and weigh 200 pounds — “threaten to destabilize some of our most precious ecosystems and parks, primarily through predation on vulnerable native species.” Several of the species — generally bought as pets and then released when they became too large — breed in south Florida, including the Burmese python, whose numbers in the state are estimated in the tens of thousands. The USGS report said that the snakes thrive in rural and suburban areas and could pose a threat to humans. The report cited as a cautionary tale the Pacific island of Guam, where the invasive brown treesnake has wiped out 10 of Guam’s 12 native bird species.
PERMALINK

 

07 Oct 2009: From ‘Albatross Cam’
New Insights into Foraging Behavior

By attaching small digital cameras to the backs of several albatrosses in the sub-Antarctic, Japanese and British scientists have discovered that the great seabirds sometimes feed in conjunction with pods of killer whales, apparently picking up scraps left by the predatory mammals. The researchers affixed the

Photo Gallery
Albatross

PLoS ONE
Foraging for prey: An albatross’ view
cameras to four black-browed albatrosses captured on Bird Island in South Georgia in January, then retrieved three of the four cameras when the seabirds returned to their breeding colonies. The scientists collected nearly 29,000 digital images, some of which showed albatrosses flying behind killer whales and landing in the sea near the orcas. Reporting in the journal PLoS ONE, the scientists said that the albatrosses appeared to be feeding on scraps of Patagonian toothfish or other prey devoured by the killer whales. Such interactions between albatrosses and killer whales have rarely been observed, and the researchers said that one way albatrosses may locate prey in a vast, featureless sea is by spotting orcas and feeding in their vicinity. The cameras, each weighing 82 grams, captured other images of fellow albatrosses in flight, as well as icebergs adrift in the Southern Ocean.
PERMALINK

 

02 Oct 2009: Loss of World’s Large Predators
Causing Alarming Rise in ‘Mesopredators’

The decline of the world’s large, or “apex,” predators is leading to an increase in smaller, so-called “mesopredators,” causing significant ecological and economic damage, according to a new study. The populations of primary predators such as wolves, lions, and sharks have sharply declined because of hunting, fishing, and habitat disruption, researchers from Oregon State University say in a report published in the journal Bioscience. And in numerous cases worldwide, the next species in line — including birds, sea turtles, lizards, rodents, and insects — have flourished, often with unintended
ramesh
stock.xchng
consequences. In Sub-Saharan Africa, for instance, the decimation of lion and leopard populations has caused a surge in populations of baboons, which increasingly destroy crops and menace villagers. Steep declines in sharks have led to increases in ray populations, which have decimated some bay scallop fisheries. In North America, the largest terrestrial species have declined for two centuries, enabling 60 percent of smaller predators to expand their ranges. Among other findings, researchers say the surge in smaller predators has triggered collapses of entire ecosystems and led to significant plant and crop damage. The researchers said it may be more cost-effective to reintroduce apex predators into ecosystems than spending large sums controlling mesopredators.
PERMALINK

 

28 Sep 2009: Impact of Mountaintop Mining
To Be Subject of Major Study by U.S. EPA

The Obama administration is quietly launching a major scientific review of the environmental impact of mountaintop coal mining on streams and rivers in Appalachia, according to a news report. The Charleston Gazette says that the U.S. Environmental Protection Agency (EPA) is forming a scientific panel to study how mountaintop removal has affected headwater streams and impacted downstream water quality. The study, announced without fanfare in the Federal Register, will also examine whether coal mining companies are meeting their obligations to restore Appalachian streams where millions of tons of mining debris have been dumped. Mountaintop coal removal is an environmentally destructive practice in which companies blast off the tops of mountains to get at coal seams below, then dump the debris in Appalachian valleys. Hundreds of miles of headwaters streams have been buried in mining debris, and the proposed EPA review marks the first time that the agency will undertake a major review of mountaintop mining. The Obama administration has promised to take “unprecedented steps” to reduce the impacts of mountaintop removal.
PERMALINK

 

28 Sep 2009: U.S. May Remove Humpbacks
From List of Endangered Species

The U.S. National Marine Fisheries Service may remove the humpback whale from its list of endangered species, citing evidence that the species has rebounded from near extinction. Since an international ban on their whaling in 1966, populations of the north Pacific humpback have increased about 4.7 percent
Humpback
Veer
A humpback breaches
each year, researchers say. An estimated 18,000 to 20,000 humpbacks now exist in the north Pacific, a sharp increase from the 1960s, when populations had dropped to about 1,400. About 60,000 humpbacks exist globally, according to the Swiss-based International Union for the Conservation of Nature. “Humpbacks by and large are an example of a species that in most places seems to be doing very well, despite our earlier efforts to exterminate them,” said Phillip Clapham, a senior whale biologist with the National Oceanic and Atmospheric Administration. The U.S. must review the status of endangered species whenever there is “significant” new information, and this is the first time the humpback’s status has been reviewed since 1999. Some groups object to lifting the endangered status of the humpback, citing climate change and ocean acidification as emerging threats to the species.
PERMALINK

 

25 Sep 2009: Fanged Frog and Striped Gecko Among New Species Discovered in Mekong

Scientists discovered 163 new species in the Greater Mekong region last year, including a fanged frog that eats birds and a striped gecko with cat-like eyes, according to a new report by WWF International.

Photo gallery
WWF

Lee Grismer/WWF
The fanged frog
New species discovered in the area over the last year include 100 plants, 28 fish, 18 reptiles, 14 amphibians, two mammals and a bird, according to the conservation group's report. The Greater Mekong region includes Cambodia, Laos, Thailand, Vietnam, and China’s Yunnan province. From 1997 to 2007, 1,068 new species have been discovered in this area. But the effects of climate change, including rising sea levels and saltwater intrusion, could alter the ecosystems for these species, putting them at risk of extinction, researchers said. “Rare, endangered and endemic species like those newly discovered are especially vulnerable because climate change will further shrink their already restricted habitats,” said Stuart Chapman, director of the WWF Greater Mekong Programme.
PERMALINK

 

22 Sep 2009: U.S. Judge Puts Yellowstone Grizzly Back on Threatened Species List

The Yellowstone grizzly bear, facing the duel threats of diminished food sources and increased killing by humans, has been placed back on the threatened species list. In issuing the court order, U.S. District Judge Donald Molloy cited the loss of whitebark pine, which produces nuts that many of the 600 grizzlies in the greater Yellowstone region — which includes parts of Montana, Idaho, and Wyoming —
Grizzly
depend upon to survive. Several factors, exacerbated by climate change, have devastated the whitebark pine. For instance, mountain pine beetles, already active in the lower lodgepole pine forest, have moved up to the higher-elevation whitebarks as winters have gotten warmer over the last seven years. With fewer trees, the grizzlies wander into other areas for food sources and have increasingly been killed by humans. In 2007, the Department of Interior’s U.S. Fish and Wildlife Service removed Endangered Species Act protection for the bear after it returned from near extinction. As many as 54 grizzly bears — including 37 shot by humans — were known to have died in 2008, the highest mortality ever recorded.
PERMALINK

 

09 Sep 2009: EPA Seeks Revocation
Of Largest Mountaintop Coal Mine Permit

The Obama administration, which promised to take “unprecedented steps” to rein in the environmentally destructive practice of mountaintop coal mining, is attempting to revoke the permit for

Photo Gallery
Mountaintop

Photo by Teri Blanton
the largest mountaintop removal project in West Virginia. Citing the potential of the Spruce Mine “to degrade downstream water quality” and do other environmental damage, the Environmental Protection Agency (EPA) has asked the U.S. Army Corps of Engineers to withdraw a previously issued permit. The EPA said the mine project would violate the Clean Water Act by blasting off the top of a mountain and then burying eight miles of streams in debris from the 2,300-acre mine. The EPA cited “new information” and data showing that the mine owners could never replace the environmental functions performed by the affected streams and that other so-called “valley fills” in Appalachia had seriously harmed stream ecology. The Spruce Mine project has been delayed by litigation, and the corps has asked a federal judge for time to study the EPA’s objections. Mountaintop coal mining has buried roughly 800 miles of Appalachian streams and destroyed hundreds of square miles of woodlands.
PERMALINK

 

28 Aug 2009: A Rare Photograph
Of a Snow Leopard in Afghanistan

One of the most remote and beautiful regions in the world — Afghanistan’s Wakhan Corridor — is also

Click to Enlarge
Leopard

Wildlife Conservation Society
A snow leopard
in Afghanistan
home to one of the globe’s rarest creatures, the snow leopard. Researchers for the New York-based Wildlife Conservation Society (WCS) recently took some remarkable, close-up photographs of a snow leopard in the Wakhan, using a camera trap that automatically shoots a picture when a creature passes by. Afghanistan is believed to be home to fewer than 200 snow leopards, which live in the Hindu Kush mountains. The Wakhan is a narrow finger of land high in the Hindu Kush in northeastern Afghanistan. WCS researchers are conducting wildlife surveys in the Wakhan with the goal of including it in a network of parks and protected areas that the Afghan government is planning to establish in the war-torn nation. Snow leopards — found in mountainous regions of central and south Asia — are listed as an endangered species by the International Union for the Conservation of Nature.
PERMALINK

 

Yale
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
.

SEARCH


 

DEPARTMENTS

Opinion
Reports
Analysis
Interviews
e360 Digest

TOPICS

Biodiversity
Business & Innovation
Climate
Energy
Forests
Oceans
Policy & Politics
Pollution & Health
Science & Technology
Sustainability
Water

REGIONS

Antarctica and the Arctic
Africa
Asia
Australia
Central & South America
Europe
Middle East
North America

ABOUT

About e360
Contact
Submission Guidelines
Reprints

CONNECT

Bookmark
Email newsletter
Twitter: YaleE360
e360 on Facebook
Share e360
Subscribe to our feed:
rss


header image
Top Image: aerial view of Iceland. © Google & TerraMetrics.


 

OF INTEREST



 
Part of the Guardian Environment Network

RESOURCES