Extreme Weather Links Arctic Population Cycles (3 of 5) (image) American Association for the Advancement of Science Share Print E-Mail Caption Extreme rain events in winter encapsulate most of the herbivore food plants in ground-ice, and the reindeer must seek alternative food sources. This calf is searching for kelp and sea-weed along the shoreline. This image relates to a paper that appeared in Jan. 18, 2013, issue of Science, published by AAAS. The paper, by Brage Hansen at Norwegian University of Science and Technology in Trondheim, Norway, and colleagues was titled, "Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic." Credit [Image courtesy of Brage Bremset Hansen] Usage Restrictions Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.