Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Earth Science News .




FLORA AND FAUNA
Bitsy beetle warms Canada: study
by Staff Writers
Paris Nov 25, 2012


An army of rice-grain-sized beetles, attracted by warming weather, has moved into Canada's western forests, where its tree massacre is causing the mercury to rise yet further, a study said Sunday. The voracious horde of mountain pine beetles has invaded about 170,000 square kilometres (65,000 square miles) -- a fifth of the forest area of British Columbia, Canada's western-most province, a research team wrote in the journal Nature Geoscience. The beetles lay their eggs under the bark of pine trees, at the same time injecting a fungus that protects their offspring but kills the trees with the help of the larvae eating their insides. As trees are felled, the cooling effect of their transpiration, similar to human sweating, is also lost. The researchers measured a corresponding rise in summertime temperatures -- about one degree Celsius (1.8 degrees Fahrenheit) over the affected areas, co-author Holly Maness from the University of Toronto told AFP. "The increased surface temperatures we observe are relatively large and may be sufficient to drive further changes in regional climate, such as changes to circulation, cloud cover and precipitation," she said. "The effects of climate change cascade. Previous studies have shown that climate change has allowed the beetle to flourish." The beetle infestation ranks among the largest ecological disturbances ever recorded in Canada, said the team, adding that similar outbreaks were also claiming large forested areas in the western United States. "The current mountain pine beetle outbreaks serve as a parable, illustrating how the delicate balance of processes imposed by a stable climate can be easily disrupted by climate change," said Maness.

.


Related Links
Darwin Today At TerraDaily.com






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





FLORA AND FAUNA
New species literally spend decades on the shelf
Washington DC (SPX) Nov 26, 2012
Many of the world's most unfamiliar species are just sitting around on museum shelves collecting dust. That's according to a report in the Cell Press journal Current Biology showing that it takes more than 20 years on average before a species, newly collected, will be described. It's a measure the researchers refer to as the species' "shelf life," and that long shelf life means that any co ... read more


FLORA AND FAUNA
Sandy costs top $42 bn in New York: governor

Haitian president talks quake relief with Pope Benedict XVI

Storm gives New Yorkers new family - each other

Victims of Hurricane Sandy forgotten in Haiti

FLORA AND FAUNA
Better protection for forging dies

DataWind denies Aakash tablet cheap Chinese import

Scotch tape finds new use as grasping 'smart material'

New structures self-assemble in synchronized dance

FLORA AND FAUNA
China facing looming water shortages

Brazil state bank to invest $11 billion in Amazon dam

Researchers identify a simple way to precipitate phosphorus from the wastewater of a pulp mill

Warming to shift heavy rainfall patterns in the UK

FLORA AND FAUNA
Greenland's viking settlers gorged on seals

Ocean currents play a role in predicting extent of Arctic sea ice

Scientists say new signs of global warming in Russian Arctic

Warming Temperatures Will Change Greenland's Face

FLORA AND FAUNA
Saving Water without Hurting Peach Production

Pear genome provides new insight into breeding improvement and evolutionary trace analysis

Herbivore defense in ferns

Flower power to purge poison and produce platinum

FLORA AND FAUNA
800 homes flooded as Britain soaked by more heavy rain

USA's ancient hurricane belt and the US-Canada equator

More eruptions tipped as N. Zealand volcano disrupts flights

Rain-battered Britain braces for floods

FLORA AND FAUNA
DR Congo president sacks chief of land forces

DRC: M23 gains spark fears of wider war

Sudan army confirms it attacked near S. Sudan border

Nigeria to send 600 troops to Mali: defence minister

FLORA AND FAUNA
A 3-D light switch for the brain

Scientists improve dating of early human settlement

Oldest home in Scotland unearthed

Archaeologists identify spear tips used in hunting a half-million years ago




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement