Search: Look for:   Last 1 Month   Last 6 Months   All time
Home :: World

Disappearing ice altering ecosystem subtly

United States America,Environment/Wildlife, Mon, 09 Apr 2012 IANS

Washington, April 9 (IANS) Shrinking sea ice, snow and glaciers, especially in high-latitude regions where water is frozen for sometime, the cryosphere, is affecting the ecosystem in hidden ways.


Scientists have already recorded how some larger animals, such as penguins and polar bears, are responding to loss of their habitat, but research is only now starting to uncover less obvious effects of the shrinking cryosphere on organisms.


Disappearing sea ice also seems, unexpectedly, to be decreasing the sea's uptake of carbon dioxide (CO2) from the atmosphere, the journal BioScience reports.


On land, snowpack changes can alter an area's suitability for a particular plant species, and melting permafrost affects the amount of CO2 that plants and microbes take out of the atmosphere, according to a statement of Portland State University.


The study by Andrew G. Fountain of Portland State University and five co-authors describes how decreasing snowfall in many areas threatens burrowing animals and makes plant roots more susceptible to injury because snow acts as an insulator.


And because microbes such as diatoms that live under sea ice are a principal source of food for krill, disappearing sea ice has led to a decline in their abundance, resulting in impacts on seabirds and mammals that feed on krill.


Manohar Lal being presented with a memento
Manoj Tiwari BJP Relief meets the family members of late Ankit Sharma
Haryana CM Manohar Lal congratulate former Deputy PM Lal Krishna Advani on his 92nd birthday
King of Bhutan, the Bhutan Queen and Crown Prince meeting the PM Modi
PM Narendra Modi welcomes the King of Bhutan
Post comments:
Your Name (*) :
Your Email :
Your Phone :
Your Comment (*):
  Reload Image




Excellent Hair Fall Treatment
Careers | Privacy Policy | Feedback | About Us | Contact Us | | Latest News
Copyright © 2015 NEWS TRACK India All rights reserved.