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

Huge colonies of seabirds accustomed 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 introduced foxes rippled through entire island ecosystems...

Lands surface change on Alaska tundra creating longer, warmer summers in Arctic

A gradual lengthening of the snow-free season in Alaska's tundra, and a corresponding northward progression of the growth of shrubs and trees, may be creating a cycle of warmer and longer summers in the Alaskan Arctic according to a new study to be published in the Sept. 22, 2005, issue of Science Express. The resulting atmospheric heating in the region of northern Alaska is equivalent to...

Tundra disappearing at rapid rate

Forests of spruce trees and shrubs in parts of northern Canada are taking over what were once tundra landscapes--forcing out the species that lived there. This shift can happen at a much faster speed than scientists originally thought, according to a new University of Alberta study that adds to the growing body of evidence on the effects of climate change. The boundary, or treeline, betwe...
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Breaking Medicine News(10 mins):Health News:Rapid Response Teams Don't Cut Hospital Heart Attacks, Death Rates 2Health News:Rapid Response Teams Don't Cut Hospital Heart Attacks, Death Rates 3Health News: Health Level Seven and The Health Story Project Announce Publication of Diagnostic Imaging Report Guide at Annual RSNA Meeting : HL7 Clinical Document Architecture (CDA) Implementation Guide Enhances Radiology Reporting 2Health News: Health Level Seven and The Health Story Project Announce Publication of Diagnostic Imaging Report Guide at Annual RSNA Meeting : HL7 Clinical Document Architecture (CDA) Implementation Guide Enhances Radiology Reporting 3Health News: Health Level Seven and The Health Story Project Announce Publication of Diagnostic Imaging Report Guide at Annual RSNA Meeting : HL7 Clinical Document Architecture (CDA) Implementation Guide Enhances Radiology Reporting 4Health News: Health Level Seven and The Health Story Project Announce Publication of Diagnostic Imaging Report Guide at Annual RSNA Meeting : HL7 Clinical Document Architecture (CDA) Implementation Guide Enhances Radiology Reporting 5Health News:Vaccine and drug research aimed at ticks and mosquitoes to prevent disease transmission 2Health News:Driving Consumer Engagement Is Focus of Address by Healthfitness' Chief Medical Officer at Watson Wyatt Health Care Solutions Event 2
(Date:12/2/2008)..., This release is available in German . , ...ted model-making tricks. Scientists at the Max Pla...of Stuttgart and the Colorado School of Mines have...at model makers use to get ships into a bottle whe...ot erected until it is in the bottle. In the same ...
(Date:12/2/2008)..., The Arctic is undergoing rapid transformation d.... ESA,s ERS and Envisat satellites have been provi...years. These long term data sets in combination wi...ng the newly adopted European Commission policy ca..., The policy highlights new opportunities in the ...
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