HOME >> BIOLOGY >> NEWS
Climate change could doom Alaska's tundra

PORTLAND In the next 100 years, Alaska will experience a massive loss of its historic tundra, as global warming allows these vast regions of cold, dry, lands to support forests and other vegetation that will dramatically alter native ecosystems, an Oregon State University researcher said today.

Polar regions such as Alaska will be among the first to illustrate the profound impacts of climate change, said Dominique Bachelet, an associate professor in the OSU Department of Bioengineering and expert on the effects of climate change on terrestrial vegetation. She spoke at the annual meeting of the Ecological Society of America.

More precipitation, an overall loss of soil carbon, a probable reduction in forest fires and a likely increase in insect and pathogen attacks on trees are also projected by some of the most sophisticated computer models yet developed, Bachelet said. "The effects of climate change in Alaska will be among the most visible in the world," Bachelet said. "The tundra has no place else to go, and it will largely disappear from the Alaskan landscape, along with the related plant, animal and even human ecosystems that are based upon it."

The newest research suggests that 90 percent of Alaska's tundra that was present in 1920 will be gone by 2100, less than a century from now, under one of the climate models projecting the most extreme warming. A model with more conservative estimates indicates that 77 percent of the tundra will disappear during that time.

Temperatures have already been above the historical norm in Alaska for the past 17 years. But about 100 years from now, the average annual temperature in Alaska may soar up to 13 degrees Fahrenheit higher in the worst case scenario predicted by climate models. Tundra is a cold, comparatively dry ecosystem that now covers much of Alaska, characterized by the permanently frozen deep soil layers called permafrost, few or no trees, grasses and dwar
'"/>

Contact: Dominique Bachelet
bachelet@fsl.orst.edu
360-570-2015
Oregon State University
3-Aug-2004


Page: 1 2 3

Related biology news :

1. Climate change plus human pressure caused large mammal extinctions in late Pleistocene
2. Climate may play role in lynxs hunting ability
3. Climate change Qs & As
4. Climate change may threaten more than one million species with extinction
5. Climate linked to reproduction of right whales
6. Climate change linked to migratory bird decrease
7. Climate affects recent crop yield gains
8. Climate change surprise: High carbon dioxide levels can retard plant growth, study reveals
9. Climate and cholera: An increasingly important link
10. Grant from Vetlesen Foundation supports URI Graduate School of Oceanography Climate Research
11. Climate monitoring goes mobile

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/6/2019)... ARBOR, Mich. (PRWEB) , ... November 06, 2019 ... ... Mastermind® version 2.0 today. The Genomic Search Engine now includes the ... new functionality will further accelerate diagnosis of patients with genetic and rare diseases. ...
(Date:11/5/2019)... Seattle, WA (PRWEB) , ... November 05, 2019 ... ... LeCuyer & Amato Dentistry, providing state-of-the-art cosmetic and restorative dentistry to Seattle, WA, ... Receiving her Doctor of Dental Surgery degree from the University of Washington, Dr. ...
(Date:11/2/2019)... ... ... Stay on top of current hot topics through free webinars presented by leading experts ... be sure to register today to save your place! Participate in the discussion and ... webinars: , CLINICAL OPERATIONS , November 14 – Leveraging Technology and Data to Establish ...
Breaking Biology News(10 mins):
(Date:11/20/2019)... NEWTOWN, Conn. (PRWEB) , ... November 20, 2019 ... ... is projecting worldwide production of about 8,500 microturbine electrical power generation units from ... is a significant increase over 2017's projection of 3,821 units worth $569 million. ...
(Date:11/12/2019)... (PRWEB) , ... November 12, ... ... of enterprise software solutions for biopharmaceutical R&D, today announced that Immatics ... has adopted Genedata Biologics® to streamline their R&D operations related ...
(Date:11/12/2019)... ... November 12, 2019 , ... Peggy Lillis Foundation (PLF) ... deadly healthcare-associated infection C. diff. The campaign, “See C. diff,” combines ... at least 30,000 people in the U.S. each year. The campaign also features ...
(Date:11/6/2019)... ... November 06, 2019 , ... ... and dialogue, today announces its East/West CEO conference to be held ... , Kicking off the week of the J.P. Morgan Healthcare Conference ...
Breaking Biology Technology:
Cached News: