Jump to content
Ornithology Exchange
Sign in to follow this  
PhysOrg

Extreme weather events a potent force for arctic overwintering populations

Recommended Posts

Image
During the winter and spring following heavy rain-on-snow events, herbivores in Svalbard may find their food sources covered by an impenetrable coat of ice. This can force wild reindeer and rock ptarmigan to aggregate in the few ice-free spots that are available. Credit: Nicholas Lecomte, Norwegian Polar Institute
Climate change is known to affect the population dynamics of single species, such as reindeer or caribou, but the effect of climate at the community level has been much more difficult to document. Now, a group of Norwegian scientists has found that extreme climate events cause synchronized population fluctuations among all vertebrate species in a relatively simple high arctic community. These findings may be a bellwether of the radical changes in ecosystem stability that could result from anticipated future increases in extreme events. The findings are published in the 18 January issue of Science.

Read the full article on PhysOrg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...